JPH08182202A - Power conditioner - Google Patents

Abstract

(57) [Abstract] [Purpose] When the power supplied by the power supply means is insufficient, the commercial power source can be used to supply the shortage of power, and the power supply means stops the power supply. It is an object of the present invention to provide a power conditioner capable of supplying electric power to a load even when doing so. [Structure] The coupling means 18 combines the electric power of the commercial power supply 12 connected to the first input terminal 13 and the electric power supplied by the power supply means 14 connected to the second input terminal 15 converted by the power conversion means 19. The power conditioner can be connected to supply the shortage of the electric power supplied by the electric power supply means 14 from the commercial power supply 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power conditioner which converts input electric power and supplies electric power to a connected load.

[0002]

2. Description of the Related Art A conventionally used power conditioner is shown in FIG. Power conditioner 1
For example, the input terminal 3 receives the electric power of the electric power supply means 2 for supplying the electric power of DC 12V by a battery or the like, the electric power conversion means 6 for converting the electric power into the electric power of 100V, 60Hz, and the output terminal 5 Is being supplied to the load 4.

[0003]

However, in the power conditioner of the above-mentioned conventional structure, if the power supply means 2 stops the power supply for some reason, it cannot supply the power to the load 4. It has a problem.

The present invention is intended to solve the problem of such a conventional structure, and when the power supplied by the power supply means is insufficient, a commercial power source is used to make up for the shortage. It is a first object of the present invention to provide a power conditioner that can supply power and that can supply power even when the power supply means stops supplying power. The second to thirty objectives are to provide the second to thirty means for achieving the first objective.

[0005]

The first means of the present invention for achieving the first object is to provide an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a power supply. A second input terminal for connecting the power supply means to
The coupling means is connected between the first input terminal and the output terminal, and the power conversion means is connected between the second input terminal and the coupling means.

A second means of the present invention for achieving the second object is to connect an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a power supply means for supplying power. A second input terminal, wherein the first input terminal is a rectifying means, the second input terminal is a coupling means,
Further, the output terminals are power conditioners in which power conversion means are respectively connected.

A third means of the present invention for achieving the third object is to connect an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a power supply means for supplying power. And a second input terminal, wherein the first input terminal is a first power conversion means, the second input terminal is a coupling means through the second power conversion means, the output terminal This is a power conditioner to which the third power conversion means is connected.

A fourth means of the present invention for achieving the fourth object is to connect an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a power supply means for supplying power. And a second input terminal, and the output terminal, the first input terminal and the second input terminal have different shapes from each other.

The fifth means of the present invention for achieving the fifth object is to provide a power conditioner in which the output terminal is an outlet.

A sixth means of the present invention for achieving the sixth object is a power conditioner in which the first input terminal is in the form of a plug for connecting to a commercial power source.

The seventh means of the present invention for achieving the seventh object is to provide a power conditioner using a solar cell as the power supply means.

The eighth means of the present invention for achieving the eighth object is to provide a power conditioner in which the power supply means is a wind power generator.

A ninth means of the present invention for achieving the ninth object is a power conditioner in which the power supply means is a fuel cell.

According to a tenth means of the present invention for achieving the tenth object, an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a power supply means for supplying power are connected. A second input terminal for connecting the first input terminal and the output terminal to the coupling means, the second input terminal and the coupling means to the power conversion means, the first input terminal Are connected to input power supply detection means for detecting voltage and frequency, and the information of the input power supply detection means is transmitted to the power conversion means so that the output of the output terminal has the same voltage and frequency as the commercial power supply. This is what you do.

An eleventh means of the present invention for achieving the eleventh object is to provide an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a power supply means for supplying electric power. And a second input terminal for connecting the first input terminal and the output terminal between the first input terminal and the output terminal via the first power conversion means for converting the frequency of the commercial power supply to the frequency set by the frequency setting means. Power coupling means for converting the output of the power supply means to the frequency set by the frequency setting means between the second input terminal and the coupling means. This is what you do.

A twelfth means of the present invention for achieving the twelfth object is to provide an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a power supply means for supplying electric power. And a second input terminal for connecting the first input terminal and the output terminal between the first input terminal and the output terminal for converting the frequency of the commercial power source by the frequency setting means and the voltage of the commercial power source by the voltage setting means. A second power converter for connecting the coupling means connected through the power converting means, and converting power to the frequency set by the frequency setting means and the voltage set by the voltage setting means at the second input terminal. It is a power conditioner to which means are connected.

A thirteenth means of the present invention for achieving the thirteenth object is to provide an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a power supply means for supplying electric power. And a second input terminal for connecting to the first input terminal, a coupling means via the first power conversion means, a coupling means to the second input terminal, and to the output terminal. Is a power conditioner to which second power conversion means for converting the output of the coupling means into a frequency set by the frequency setting means is connected.

A fourteenth means of the present invention for attaining the fourteenth object is to provide an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a power supply means for supplying electric power. And a second input terminal for connecting to the first input terminal, a coupling means via the first power conversion means, a coupling means to the second input terminal, and to the output terminal. Is a power conditioner to which second power conversion means for converting the output of the coupling means into a frequency set by the frequency setting means and a voltage set by the voltage setting means is connected.

A fifteenth means of the present invention for achieving the fifteenth object is to provide an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a power supply means for supplying electric power. A second input terminal for connecting to the second input terminal, and a coupling means is connected between the first input terminal and the output terminal via a switch means for adjusting power, and is coupled to the second input terminal. The power conversion means is connected to the means through the power detection means, and when the detection output of the power detection means is equal to or higher than the reference value, the power supply from the commercial power supply is stopped and the output of the power supply means is used. When it is less than the reference value, the power conditioner uses the power of the commercial power source and the power supplied by the power supply means together.

The sixteenth means of the present invention for achieving the sixteenth object is, in particular, a power conditioner using a solar cell as the power supply means constituting the fifteenth means of the present invention. Is.

The seventeenth means of the present invention for achieving the seventeenth object is, in particular, a power conditioner in which the power supply means constituting the fifteenth means of the present invention is a wind power generator. It is a thing.

The eighteenth means of the present invention for achieving the eighteenth object is, in particular, a power conditioner using a fuel cell as the power supply means constituting the fifteenth means of the present invention. Is.

In the nineteenth means of the present invention for achieving the nineteenth object, in addition to the configuration of the fifteenth means of the present invention, the electric power received from the electric power supply means is below a reference value. The power conditioner is provided with display means for displaying the above.

According to a twentieth means of the present invention for achieving the twentieth object, in addition to the structure of the fifteenth means of the present invention, an input power from a commercial power source and an input power from a power supply means are provided. The power conditioner is provided with display means for displaying the ratio of

The twenty-first means of the present invention for achieving the twenty-first object is the construction of the fifteenth means of the present invention, in which the input power from the power supply means reaches a predetermined value. In this case, the power conditioner is provided with the input limiting means for maintaining the predetermined value.

A twenty-second means of the present invention for achieving the twenty-second object is a power conditioner using a solar cell as the power supply means constituting the twenty-first means of the present invention. It is a thing.

A twenty-third means of the present invention for achieving the twenty-third object is a power conditioner in which the power supply means constituting the twenty-first means of the present invention is a wind power generator. To do.

The twenty-fourth means of the present invention for achieving the twenty-fourth object is a power conditioner using a fuel cell as the power supply means constituting the twenty-first means of the present invention. It is a thing.

According to a twenty-fifth means of the present invention for achieving the twenty-fifth object, in addition to the configuration of the fifteenth means of the present invention, an input setting for setting the input power from the power supply means. The power conditioner is provided with an input limiting means for maintaining the predetermined value based on the information of the input setting means when the input power reaches the predetermined value.

According to a twenty-sixth means of the present invention for achieving the twenty-sixth object, in addition to the configuration of the fifteenth means of the present invention, the input power from the power supply means is based on time. The power conditioner has a timer means for setting and an input limiting means for setting a predetermined value by the timer means.

The twenty-seventh means of the present invention for achieving the twenty-seventh object is the construction of the twenty-sixth means of the present invention, in which the input power from the power supply means has a predetermined value. The power conditioner is provided with display means for displaying that the power has been reached.

A twenty-eighth means of the present invention for achieving the twenty-eighth object is to connect an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a solar cell. A second input terminal, connecting coupling means between the first input terminal and the output terminal, and connecting power conversion means between the second input terminal and the coupling means; The terminal is a power conditioner that receives electric power at the optimum operating point of the solar cell.

The twenty-ninth means of the present invention for achieving the twenty-ninth object is that the predetermined value constituting the twenty-fourth means of the present invention is set to a value lower than the rated output of the fuel cell at the time of starting. The power conditioner is set to a small initial value and gradually increased from this initial value.

The thirtieth means of the present invention for attaining the thirtieth object is, in addition to the configuration of the twenty-ninth means of the present invention,
The power conditioner suppresses the temporal fluctuation of the input power from the second input terminal to a predetermined value or less when the power consumption of the load changes suddenly.

[0035]

In the first means of the present invention, the coupling means couples the electric power of the commercial power source and the electric power supplied by the electric power supply means converted by the electric power conversion means, and the shortage of the electric power supplied by the electric power supply means. Is a power conditioner that can be supplied from a commercial power source.

In the second means of the present invention, the coupling means couples the power supplied by the power supply means and the power supplied by the commercial power source rectified by the rectification means, and the power conversion means converts the combined power. It acts to convert the voltage, frequency, etc. to a form suitable for the load and supply it to the load. Especially, even if the power supply from the power supply means is stopped, the power of the commercial power supply is used to supply the power. It is a power conditioner that can maintain

In the third means of the present invention, the power supplied by the power supply means is adjusted by the second power conversion means so that the power supplied by the power supply means is easily coupled to the coupling means. The power conditioner is capable of supplying the shortage of power from the commercial power source and using the power of the commercial power source to maintain the power supply even if the power supply from the power supply means is stopped.

The fourth means of the present invention is to operate as a power conditioner in which connection errors do not occur by making the shapes of the input terminal and the output terminal different.

The fifth means of the present invention is to act as a power conditioner in which the power plug of a commercially available electric appliance can be used as it is.

The sixth means of the present invention functions as a power conditioner which can be easily used by inserting the first input terminal into an outlet of a commercial power source.

The seventh means of the present invention is to use a solar cell to cover the power used by the load with infinitely free solar energy in the daytime, and to use the power of the commercial power source for the shortage at night or during cloudy days. It acts as a power conditioner that is supplied as a power supply.

The eighth means of the present invention uses a wind power generator to supply the power used by the load with infinitely free wind energy, and when there is no wind or when the wind is weak, the insufficient power is supplied from the commercial power source. It acts as a power conditioner that can be supplied.

In the ninth means of the present invention, a fuel cell can be used as an electric power supply means to obtain an economical power source. When the fuel cell runs out of fuel, a shortage of power is supplied from the commercial power source. It acts as a power conditioner that can be supplied.

The tenth means of the present invention operates as a power conditioner in which the output voltage and frequency of the output terminal are the same as those of the commercial power source and the types of loads that can be used are widened.

The eleventh means of the present invention acts as a power conditioner in which the frequency of the electric power supplied to the load output to the output terminal can be freely set by the frequency setting means.

The twelfth means of the present invention acts as a power conditioner in which the voltage and frequency of the power supplied to the load output to the output terminal can be freely set by the voltage setting means and the frequency setting means. is there.

The thirteenth means of the present invention functions as a power conditioner in which the frequency of the electric power supplied to the load output to the output terminal can be freely set by the frequency setting means.

The fourteenth means of the present invention acts as a power conditioner in which the voltage and frequency of the power supplied to the load output to the output terminal can be freely set by the voltage setting means and the frequency setting means. is there.

In the fifteenth means of the present invention, when the electric power supplied by the electric power supply means detected by the current detecting means is larger than the reference value, the switch means stops the electric power supply from the commercial power source and the reference electric power is supplied. When it is smaller than the value, it works as a power conditioner that also uses the electric power of the commercial power supply.

The sixteenth means of the present invention functions as a power conditioner capable of preferentially utilizing infinitely free solar energy by using the power supply means of the fifteenth means of the present invention as a solar cell. .

The seventeenth means of the present invention functions as a power conditioner capable of utilizing infinitely free wind energy, using the power supply means of the fifteenth means of the present invention as a wind power generator.

The eighteenth means of the present invention functions as a power conditioner capable of utilizing infinitely free wind energy, using the power supply means as a wind power generator.

The nineteenth means of the present invention functions as a power conditioner for indicating that the amount of electric power supplied from the electric power supply means is below a reference value.

The twentieth means of the present invention functions as a power conditioner for displaying the ratio of the amount of electric power supplied from the electric power supply means to the amount of electric power supplied from the commercial power source on the display means. .

In the twenty-first means of the present invention, the input limiting means functions as a power conditioner that suppresses the output of the power supply means to a predetermined value or less and does not cause over-rating of the power supply means.

The twenty-second means of the present invention functions as a power conditioner capable of protecting the solar cell by suppressing the output of the solar cell to a predetermined value or less.

The twenty-third means of the present invention functions as a power conditioner capable of protecting the wind power generator by suppressing the output of the wind power generator to a predetermined value or less.

The twenty-fourth means of the present invention functions as a power conditioner capable of protecting the fuel cell by suppressing the output of the fuel cell to a predetermined value or less.

In the twenty-fifth means of the present invention, the input limiting means for limiting the output supplied by the power supply means is operated with the value set in the input setting means to set the upper limit of the power supplied by the power supply means. It acts as a power conditioner that can be set freely.

The twenty-sixth means of the present invention operates as a power conditioner in which the input limiting means is operated by the timer means and the power supplied by the power supply means can be limited depending on the usage time.

The twenty-seventh means of the present invention is a power condition in which the output limit of the power supply means is preset in the input setting means, and when the input power reaches a predetermined value, the display means indicates that fact. It acts as a na.

The twenty-eighth means of the present invention is a power conditioner capable of suppressing the input power from the commercial power source to the minimum by using the solar cell in the optimum operating range set in the optimum power setting means. It works.

The twenty-ninth means of the present invention uses the fuel cell within the operating range set by the optimum power setting means to set an initial value smaller than the rated output at the time of start-up, and gradually increase over time. It can be used as a mode in which the output is increased, and the operation that is matched with the speed of the chemical reaction of the electrode becomes possible, and as a result, it acts as a power conditioner that can secure the life of the electrode.

Furthermore, the thirtieth means of the present invention is a power conditioner which, when the power consumption of a load changes abruptly, suppresses the temporal change amount of the output of the fuel cell to a predetermined value or less and assures the life of the electrode. It acts as.

[0065]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the first means of the present invention will be described below with reference to FIG. Reference numeral 11 is a power conditioner of this embodiment, which is a first input terminal 1 for connecting a commercial power supply 12.
3 and the second input terminal 15 for connecting the power supply means 14
And an output terminal 17 for connecting the load 16.
As the power supply means 14, for example, a DC power supply such as a battery or an AC power supply can be used. Thus, between the first input terminal 13 and the output terminal 17, the power converted by the power conversion means 19 for converting the output of the power supply means 14 into a form suitable for the load 16 and the commercial power supply 12 are received. The coupling means 18 for coupling with electric power is connected.
As the power conversion means 19, an inverter circuit or the like having a DC / AC conversion function is used. Further, as the coupling means 18, a 2-input serial connection circuit, a 2-input parallel connection circuit, a 2-input simple transformer coupling circuit, a 2-input 1-circuit such as a parallel transformer coupling circuit or a series transformer coupling circuit.
The output power coupling circuit is used.

The operation of this embodiment will be described below. The power supply means 14 supplies power to the second input terminal 15. This electric power is DC /
It is AC-converted and input to the coupling means 18. On the other hand, the coupling means 18 is supplied with electric power from the commercial power source 8 through the first input terminal 13. The coupling means 18 couples the two input electric powers and outputs the electric power that meets the specifications of the load 11 from the output terminal 17 as the power source of the load 11. In other words, the power conditioner 11 is the commercial power source 12
The electric power from the output terminal 17 and the electric power from the electric power supply means 14 are combined to supply the electric power from the output terminal 17 to the load 16.

As described above, according to the present embodiment, the output obtained by converting the electric power supplied by the electric power supply means 14 into AC by the electric power conversion means and the electric power supplied by the commercial power source 12 are combined by the combining means 18, A power conditioner capable of supplementing the shortage of the output of the power supply means 14 from the commercial power supply 12 by supplying the load 16 from the output terminal 17 is realized.

In this embodiment, the power supply means 14 is outside the power conditioner 11, but the power supply means 1
There is no problem even if 4 is included in the power conditioner 11. Further, the number of input terminals shown as the first input terminal 13 and the second input terminal 15 is not particularly limited to two, and there is no problem even if they are three or more. It should be noted that there is no problem even if a plurality of output terminals 17 are provided.

Next, an embodiment of the second means of the present invention will be described with reference to FIG. The power conditioner 2 of this embodiment
1 is a commercial power source 12 received via the first input terminal 22.
Is rectified by the rectifying means 23 into DC. This rectified output is supplied to the coupling means 24 as in the above embodiment. Further, the coupling means 24 receives the DC power supplied from the power supply means 26 via the second input terminal 25, combines the two DC powers, and is connected to the output terminal 28. It is output to 27. A bridge circuit or the like is used as the rectifying means 23. Further, the coupling means 24 has the two inputs 1 described in the above embodiment.
The output power coupling circuit is used. The power conversion means 27 uses an inverter circuit or the like having a DC / AC conversion function.

The operation of this embodiment will be described below. In the present embodiment, the commercial power supplied from the commercial power supply 12 to the first input terminal 22 is converted into DC by the rectifying means 23. Further, the DC power supplied by the power supply means 26 and the rectified output are coupled by the coupling means 24.
This combined output is converted into electric power that conforms to the specifications of the load 16 by the electric power conversion means 27, and is supplied to the load 16 from the output terminal 28.

As described above, according to this embodiment, the output of the commercial power source 12 is once converted into DC by the rectifying means 23,
Since the DC power supplied by the power supply means 26 is coupled by the coupling means 24, and the AC conversion is performed again by the power conversion means 27 so as to be suitable for the load 16.
Even when the power supply means 26 stops supplying power, the power supplied from the commercial power supply 12 can be used to maintain the power supplied to the load 16.

Next, an embodiment of the third means of the present invention will be described with reference to FIG. In the present embodiment, the commercial power supplied from the commercial power supply 12 to the first input terminal 35 is converted into, for example, 400 Hz by the first power conversion means 36. Further, the power supplied to the second input terminal 38 by the power supply means 37 is converted to, for example, 400 Hz by the second power conversion means 39. The combining means 40 combines the two electric powers and outputs the combined electric powers to the third electric power converting means 40. The third power conversion means 40 converts this power into power that meets the specifications of the load 16 and supplies the power from the output terminal 42 to the load 16.

The operation of this embodiment will be described below. As described above, the power conditioner 43 of this embodiment includes the first power conversion means 36 and the second power conversion means 39.
Using the output of the commercial AC power source 12 and the power supply means 3
The output of 7 is converted to, for example, 400 Hz, and is combined by the combining means 40. Therefore, when the coupling means 40 is composed of, for example, a transformer, the transformer can be composed of a very small one, and the entire apparatus can be downsized. The output of the coupling means 40 is converted into electric power that meets the specifications of the load 16 by using the third electric power conversion means 41, which is the same as in the above embodiment.

As described above, in this embodiment, the power conditioner 43 can be miniaturized, and the shortage of the output of the power supply means 14 can be supplemented from the commercial power supply 12.

Next, an embodiment of the fourth means of the present invention will be described with reference to FIG.
It will be described based on. In the present embodiment, the first input terminal 50 that receives the output of the commercial power source 12, the second input terminal 51 that receives the output of the power supply means 37, and the output terminal 52 that connects the load 16 have different shapes. There is something. Regarding the coupling means 18 and the power conversion means 19,
The configuration is the same as that described in FIG.

With the above-mentioned configuration, the power conditioner 53 of this embodiment is configured so that a connection error does not occur when the user uses it. That is, the shape of the first input terminal 50 is different from the shape of the second input terminal 51, and also the shape of the output terminal 52 to which the load 16 is connected.

In the present embodiment, the two input terminals and the one output terminal are all different in shape, but when a plurality of input / output terminals are provided, the shape of the terminals having the same purpose of use is changed. There is no problem even if they are the same.

Next, an embodiment of the fifth means of the present invention will be described with reference to FIG. In this embodiment, the shape of the output terminal 58 for connecting the load 59 is an outlet for receiving the plug of the load 59. The shapes of the first input terminal 56 and the second input terminal 57 are not particularly limited. Further, the coupling means 18 and the power conversion means 19 have the same configuration as that described in FIG.

According to the present embodiment having the above structure, the load 59 can be connected very easily.

Next, an embodiment of the sixth means of the present invention will be described with reference to FIG.
It will be described based on. The power conditioner 61 of the present embodiment has a plug having the shape of the first input terminal to which the commercial power source 60 is connected. That is, the commercial power source 60 can be connected by inserting this plug into an outlet provided on a wall or the like to which the commercial power source is connected. Further, although the output terminal 58 is an outlet into which the plug of the load 59 can be inserted in the present embodiment, it is not particularly limited to this shape. Further, the shape of the second input terminal 57 to which the power supply means 37 is connected is not particularly limited.

With the above-described structure, this embodiment functions as a power conditioner in which the commercial power source 60 can be easily connected. If the output terminal 58 is an outlet into which the plug of the load 59 can be inserted, the load 59 can be easily connected.

Next, an embodiment of the seventh means of the present invention will be described with reference to FIG. In this embodiment, the solar cell 70 is used as the power supply means. The output of the solar cell 70 is received by the second input terminal 73. The second input terminal 73 is connected to the power conversion means 19 via the connecting means 77.
The coupling means 18 is connected. In order to connect the solar cell 70 and the power conversion means 16, the connecting means 77 has an abnormal interruption function / insulation function, an output drop processing function, an optimal output tracking function / overcurrent prevention function / overvoltage prevention function, etc. It is equipped. A commercial power supply 60 is connected to the first input terminal 62, and the output of the coupling means 18 is the load 5
9 is connected to the output terminal 58.

The operation of this embodiment will be described below. The solar cell 70 can use infinitely free solar energy, and in this embodiment, the output of this solar cell and the output of the commercial power source 60 can be used together. That is, the coupling unit 18 converts the output of the solar cell 70 into the power conversion unit 19.
The power converted by and the power received from the commercial power supply 60 are combined and supplied to the output terminal 58. Therefore, the power conditioner 71 of the present embodiment can supply the power used by the load 59 by infinitely free solar energy in the daytime and supply the shortage power by using the power of the commercial power source 60 at night or in the cloudy season. It is possible.

Next, an embodiment of the eighth means of the present invention will be described with reference to FIG.
Will be described with reference to. In this embodiment, the wind power generator 80 is used as the power supply means. Wind power generator 80
Is output to the second input terminal 83. The power conversion means 19 and the coupling means 18 are connected to the second input terminal 83 via the coupling means 87. The connecting means 87 is
In order to connect the wind power generator 80 and the electric power conversion means 19, an abnormal time cutoff function / insulation function, a processing function when the output drops, an optimal output tracking function / overcurrent prevention function / overvoltage prevention function / AC / DC conversion function And so on. A commercial power source 60 is connected to the first input terminal 62, and the output of the coupling means 18 is connected to an output terminal 58 to which a load 59 is connected.

The operation of this embodiment will be described below. The AC power of the wind power generator 80 is input to the second input terminal 83, converted into AC power of commercial frequency by the power conversion means 19 via the coupling means 87, and sent to the coupling means 18. Further, the coupling means 18 couples the electric power of the commercial power source 60 received at the first input terminal 62 and the electric power received from the wind power generator 80 via the coupling means 87 and the power conversion means 19, and outputs from the output terminal 58. To do. In this way, the power conditioner 81 includes the wind power generator 80 and the commercial power source 6
Electric power is supplied from the output terminal 58 to the load 59 by using both 0 as input sources.

As described above, according to the present embodiment, the wind power generator 80 is used to cover the electric power used by the load 59 with infinitely free wind energy, or when there is no wind or when the wind is weak, the shortage is sufficient. It functions as a power conditioner that can supply electric power from the commercial power supply 60.

Next, an embodiment of the ninth means of the present invention will be described with reference to FIG. In this embodiment, the fuel cell 90 is used as the power supply means. The output of the fuel cell 90 is received by the second input terminal 93. The power converting means 1 is connected to the second input terminal 93 via the connecting means 97.
9. The connecting means 18 is connected. The connecting means 97 connects the fuel cell 90 and the electric power converting means 19 with each other in order to cut off in an abnormal condition, insulate function, process function when output decreases, optimal output following function, overcurrent preventing function, overvoltage preventing function, cogeneration function. It is equipped with functions, stabilization function at startup, input fluctuation stabilization function, etc. The power conversion means 19 is for converting the DC power of the fuel cell 90 received via the connecting means 97 into AC power of commercial frequency. Further, the commercial power source 60 is connected to the first input terminal 62, as in the above-described embodiments. The coupling means 18 couples the electric power of the fuel cell 90 converted into the commercial frequency by the electric power conversion means 19 and the electric power of the commercial power source 60, and outputs the output terminal 58.
Is supplied to the load 59 from

The operation of this embodiment will be described below. The DC power of the fuel cell 90 is input to the second input terminal 93, converted into AC power of commercial frequency by the power conversion means 19 via the connection means 97, and sent to the coupling means 18. Further, the coupling means 18 couples the electric power of the commercial power source 60 received at the first input terminal 62 and the electric power received from the fuel cell 90 through the coupling means 97 / power conversion means 19 and outputs from the output terminal 58. It is a thing. In this way, the power conditioner 81 supplies electric power from the output terminal 58 to the load 59 using both the fuel cell 90 and the commercial power source 60 as input sources.

As described above, according to this embodiment, an economical power source can be obtained by using the fuel cell 90, and when the fuel cell 90 runs out of fuel, the shortage of power is supplied to the commercial power source 60.
Can be supplied from.

Next, an embodiment of the tenth means of the present invention will be described with reference to FIG.
Description will be made based on 0. The power conditioner 101 of this embodiment includes an input power source detection means 107. The input power supply detection means 107 detects the voltage and frequency of the commercial power supply 62 input to the first input terminal 62, and transmits this information to the power conversion means 19.

The operation of this embodiment will be described below. The power supplied by the power supply means 14 to the second input terminal 15 is converted by the power conversion means 19. In this embodiment, the power conversion means 19 includes the input power supply detection means 10
The information on the voltage / frequency of the commercial power source 60 detected by 7 is transmitted. In other words, the commercial power source 60 is 100V or 200
Information on V or 50 Hz or 60 Hz is transmitted. The power conversion means 19 receives this information and converts the power supplied by the power supply means 14 into power matched with this frequency or the like. The electric power thus converted is sent to the coupling means 18 together with the electric power of the commercial power source 60, and is supplied from the output terminal 58 to the load 59.

As described above, in this embodiment, the input power supply detection means 107 detects the voltage / frequency of the commercial power supply 60 supplied to the first input terminal, and the power supply means 14 causes the second input terminal 15 to operate. The frequency of the electric power supplied to the load 59 is matched with the commercial power supply so as to be supplied to the load 59. For this reason, the types of load 59 that can be used are all devices that can use a commercial power source, and can realize a power conditioner with high utility value.

Next, an embodiment of the eleventh means of the present invention will be described with reference to FIG. In this embodiment, the first power conversion means 117 is connected to the first input terminal 62,
The frequency of the electric power of the commercial power source 60 is converted into the frequency set by the frequency setting means 118. The frequency setting means 118 is composed of, for example, a CR oscillator capable of setting the transmission frequency by setting the value of the rotary resistance. This frequency-converted electric power is transmitted to the coupling means 18. Further, the power supplied by the power supply means 14 to the second input terminal 15 is converted into the frequency set by the frequency setting means 118 by the second power conversion means 119 and transmitted to the coupling means 18. . In this way, the coupling means 18 couples these two electric powers and supplies them to the load 59 from the output terminal 58.

The operation of this embodiment will be described below. In the power conditioner 111, the frequency setting unit 111 sets the power supplied by the power supply unit 14 to the second input terminal 15 and the power supplied by the commercial power source 60 to the first input terminal 62. The electric power is converted to the frequency that is being supplied and the electric power is supplied from the output terminal 58 to the load 59. That is, the first power conversion means 117 is the commercial power source 6
The power supplied from 0 is converted into the second power conversion means 1
Reference numeral 19 is for converting the power supplied by the power supply means 14. Thus, the load 59 is the power supply means 1
4 and the commercial power source 60 can be supplied with power of a predetermined frequency.

As described above, according to the present embodiment, the power conditioner in which the frequency of the power supplied to the load 59 output to the output terminal 58 can be freely set by the frequency setting means 118 is realized.

Next, an embodiment of the twelfth means of the present invention will be described with reference to FIG. The power conditioner 121 of this embodiment includes a voltage setting means 129 in addition to the configuration of the eleventh embodiment of the present invention. The voltage setting means 129 can set the transmission voltage by setting the resistance value of the rotary resistor, for example, CR.
It is composed of a transmitter. That is, the first power conversion means 117 sets the voltage and frequency of the power supplied from the commercial power source 60 to the first input terminal 62 to the frequency / voltage set by the frequency setting means 118 and the voltage setting means 129. It is being converted. In the second power conversion means 119, the power supply means 14 has the second input terminal 15
The electric power supplied to is converted into the frequency / voltage set by the frequency setting means 118 and the voltage setting means 129. In this way, the load 59 can be supplied with electric power having a predetermined frequency and a predetermined voltage from both the power supply means 14 and the commercial power supply 60.

As described above, according to this embodiment, the frequency and voltage of the electric power supplied to the load 59 output to the output terminal 58 can be freely set by the frequency setting means 118 and the voltage setting means 129. Is realized.

Subsequently, an embodiment of the thirteenth means of the present invention will be described.
This will be described with reference to FIG. The output of the commercial power supply 60 input to the first input terminal 62 is the first power conversion means 13
2 is rectified into a direct current and transmitted to the coupling means 24. Further, the DC output of the power supply means 26 input to the second input terminal 25 is also transmitted to the coupling means 24. The combining means 24 combines the two electric powers and outputs the combined electric powers to the second electric power converting means 133 for converting electric power into the frequency set in the frequency setting means 138. Therefore, the load 59 receives the power converted by the second power conversion unit 133 from the output terminal 58. The frequency setting means 138 uses, for example, the CR oscillator described in the above embodiment, and can set an arbitrary frequency.

The operation of this embodiment will be described below. The power conditioner 131 of the present embodiment supplies the load 59 with the DC power supplied from the power supply unit 26 and the power of the commercial power supply 60 converted into DC by the first power conversion unit 132 in combination. Is what you are doing. At this time, in the present embodiment, the power combined by the power combining unit 24 is supplied to the frequency setting unit 138 by the third power conversion unit 133.
Convert to the power of the frequency set in and output terminal 58
Is output to.

As described above, the power conditioner 131 according to the present embodiment has a simple structure and sets the frequency of the power supplied to the load 59 output to the output terminal 58 to the frequency setting means 1.
38 can be set freely.

Next, an embodiment of the fourteenth means of the present invention will be described with reference to FIG. In this embodiment, voltage setting means 149 is provided in addition to the configuration of the thirteenth embodiment of the present invention. The voltage setting means 149 uses, for example, the CR oscillator described in the above embodiment, and can arbitrarily set the voltage of the power output from the output terminal 58.

The operation of this embodiment will be described below. In the present embodiment, the power of the commercial power source 60 combined by the combining unit 24 and the AC power supplied by the power supply unit 26 are converted into a predetermined voltage and a predetermined frequency by the second power conversion unit 133, It is output to the output terminal 58. The predetermined voltage is set by the voltage setting means 149, and the predetermined frequency is the frequency setting means 138.
Is set. In this way, the load 59 can be supplied with electric power of a predetermined voltage and a predetermined frequency from the power supply means 26 and the commercial power supply 60.

As described above, according to this embodiment, the voltage and frequency of the power supplied to the load 59 output to the output terminal 58 can be freely set by the voltage setting means 149 and the frequency setting means 138. .

Next, an embodiment of the fifteenth means of the present invention will be described with reference to FIG. The power conditioner 151 of this embodiment includes a control means 152. The control unit 152 monitors the electric power of the electric power detection unit 158 which detects the electric power supplied by the electric power supply unit 14, and does not use the electric power supplied by the commercial power source 60 when this electric power is larger than the reference value. When the value is less than the reference value, the power of the commercial power source 60 is used. As the electric power detection means 158, a current transformer is used in this embodiment to detect the current value. 157 is a switch means which is turned on or off in accordance with an instruction from the control means 152 to transmit or not transmit the electric power of the commercial power source 60 to the coupling means 18.

The operation of this embodiment will be described below. While the electric power detection means 158 detects that the electric power supplied from the electric power supply means 14 is equal to or higher than the reference value, the control means 152 controls the switch means 157 to be off. Similarly, the control unit 152 controls the switch unit 157 to be ON while detecting that the power supplied from the power supply unit 14 is less than the reference value. That is, when a battery is used as the power supply means 14, in the event of battery exhaustion, the power supplied from the commercial power supply 60 continues to be supplied to the load 59. In this way, the power coupling means 18 couples the power supplied by the power supply means 14 and the power supplied by the commercial power source 60 and supplies the power from the output terminal 58 to the load 59.

As described above, according to this embodiment, when the power supplied by the power supply means 14 is equal to or higher than the reference value,
When the power supply from the commercial power supply 60 is stopped and only the power supplied by the power supply means 14 is used and the power supplied by the power supply means 14 is less than the reference value, the commercial power supply 6
The supply power of 0 and the supply power of the power supply means 14 are used together. That is, the power of the power supply unit 14 is used with priority over the power supplied by the commercial power supply 60.

Next, an embodiment of the 16th means of the present invention will be described with reference to FIG. The power conditioner 161 of the present embodiment is provided with the control means 162 as in the embodiment of the fifteenth means of the present invention, and the second input terminal 73 is provided.
The output of the power supply means input to the first input terminal 6
It is designed to be used with priority over the output of the commercial power source 60 input to the input terminal 2. Switch means 157
The electric power detection means 158 is the same as the embodiment of the fifteenth means of the present invention.

The operation of this embodiment will be described below. The control means 162 controls the switch means 157 to be off while the solar cell 70 is supplying sufficient electric power to the second input terminal 73 in the daytime during fine weather. That is, only the output obtained by converting the output of the solar cell 70 by the power conversion means 19 is supplied from the output terminal 58. Also,
While the output of the solar cell 70 is small at night or when it is cloudy, the control means 162 turns on the switch means 157, and both the output of the commercial power supply 60 and the output of the solar cell 70 are connected to the coupling means 18. . Therefore, both outputs are output from the output terminal 58, and the load 59 is supplied with electric power.

As described above, according to this embodiment, it is possible to realize a power conditioner which can preferentially use infinitely free solar energy by using the solar cell 70 as the power supply means.

Next, an embodiment of the seventeenth means of the present invention is shown in FIG.
It will be described based on 7. In this embodiment, a wind power generator 80 is used instead of the solar cell constituting the sixteenth means of the present invention.
Is used. Therefore, the controller 172
It operates so that the output of the wind power generator 80 is used in preference to the output of the commercial power supply 60.

The operation of this embodiment will be described below. While the wind power is sufficient and the wind power generator 80 is supplying the electric power of the reference value or more to the second input terminal 83, the control means 172 controls the switch means 157 to be off. That is, the output of the wind power generator 80 is output from the output terminal 58 to the power conversion means 1
Only the power converted output by 9 is supplied. Further, while the wind power is weak and the output of the wind power generator 80 is small, the control means 172 turns on the switch means 157, and both the output of the commercial power supply 60 and the output of the wind power generator 80 are connected to the coupling means 18. To be done. Therefore, both outputs are output from the output terminal 58, and the load 59 is supplied with electric power.

As described above, according to this embodiment, it is possible to realize a power conditioner in which the wind power generator 80 is used as the power supply means and infinitely free wind energy can be preferentially used.

Next, an embodiment of the eighteenth means of the present invention will be described with reference to FIG. In this embodiment, the fuel cell 90 is used as the power supply means. Therefore, the control device 182 outputs the output of the fuel cell 90 to the commercial power source 6
It operates so that it is used in preference to the output of 0.

The operation of this embodiment will be described below. While the fuel cell 90 has sufficient fuel and sufficient power is supplied to the second input terminal 93, the controller 182 turns off the switch means 157 so that the output of the commercial power source 60 is not used. To work. Further, when the power supplied to the second input terminal 93 becomes lower than the reference value due to running out of fuel or the like, the control device 182 turns on the switch means 157 to transmit the output of the commercial power source 60 to the coupling means 18. To do. Therefore, from the output terminal 58, the fuel cell 90
And the output of the commercial power supply 60 are both output.

As described above, according to the present embodiment, the power supply means is the fuel cell 90, and a power conditioner that can use the economical power of the fuel cell 90 in preference to the power of the commercial power source 60 is realized. Is.

Next, an embodiment of the nineteenth means of the present invention will be described with reference to FIG. The power conditioner 191 of this embodiment includes a display unit 198 that displays that the electric power supplied by the electric power supply unit 14 detected by the control unit 192 is below a reference value. That is, the control means 192 knows the power supplied by the power supply means 14 to the second input terminal 15 from the detection information of the power detection means 197 which detects the current using the current transformer, and this value is predetermined. When the value falls below the reference value, the display means 198 displays this information.
The display means 198 includes a pilot lamp, LCD,
Liquid crystal is used.

The operation of this embodiment will be described below. The power detection means 197 detects the power supplied by the power supply means 14 to the second input terminal 15, and this information is transmitted to the control means 192. When this value falls below the reference value, the control means 192 drives the display means 198,
This is to display a decrease in the output of the power supply means 197. Therefore, by looking at this display, the user sees an abnormality in the output of the power supply means, for example, battery rise or lack of battery fluid, failure of the solar cell, unpredictable shadow on the solar cell, wind power generator, etc. It is possible to promptly detect the breakdown of the fuel cell, the fuel exhaustion of the fuel cell, and the like.

Next, an embodiment of the twentieth means of the present invention will be described with reference to FIG. The power conditioner 201 according to the present embodiment includes a display unit 209 that displays the ratio of the power supplied by the power supply unit 14 detected by the control unit 203 and the power supplied by the commercial power source 60. Is. In other words, the control unit 203 includes the first power detection unit 207 that the power supply unit 14 supplies to the second input terminal 15 to detect the power and the current transformer to detect the current.
The power supply of the commercial power source 60 is also known by the second power detection means 208, and the ratio of this power is calculated and this information is displayed on the display means 209. . As the display means 209, a pilot lamp, LCD, liquid crystal, etc. are used.

The operation of this embodiment will be described below. The display unit 209 receives the information from the control unit 203,
The ratio of the power supplied by the power supply means 14 and the power supplied by the commercial power supply 60 is displayed. Therefore, the user can judge the price standard for the amount of power used, the stability of the power supply means 14, and the like.

Next, an embodiment of the twenty-first means of the present invention will be described.
Description will be made with reference to FIG. In the present embodiment, when the input power from the power supply means 14 connected to the second input terminal 15 reaches a predetermined value, the input limiting means 217 that keeps this predetermined value is provided. The input limiting means 217 is
It is composed of a switching circuit, a switching element, etc. having a function of detecting a current value and limiting an input value to a predetermined value or less. The coupling means 18 and the power conversion means 19 are the same as those in the above embodiment.

The operation of this embodiment will be described below. In the present embodiment, when the power supplied by the power supply means 14 to the second input terminal 15 reaches a predetermined value, the input limiting means 217.
Is operated to limit the electric power supplied by the electric power supply means 14 so as not to exceed the predetermined value. Therefore,
When the power consumed by the load 59 exceeds this predetermined value, the commercial power source 60 connected to the first input terminal compensates for this shortage.

That is, according to this embodiment, the power supply means 1
4 can be protected.

Next, the twenty-second embodiment of the present invention will be described.
It will be described with reference to FIG. This embodiment uses a solar cell as the power supply means used in the embodiment of the twenty-first means of the present invention. That is, the second input terminal 73 is connected to the solar cell 70 which is a power supply means. The power conditioner 221 further includes an input limiting unit 227 connected to the second input terminal, a power conversion unit 19 that receives the output of the input limiting unit 227 and converts the power so as to match the specifications of the load 59, and power. It is provided with a coupling means 18 for coupling the output of the conversion means 19 and the output of the commercial power source 60 connected to the first input terminal 62.

The operation of this embodiment will be described below. In this embodiment, when the electric power supplied to the second input terminal 73 reaches a predetermined value, the input limiting means 227 acts to protect the output of the solar cell 70 from exceeding the predetermined value. .

Therefore, according to the present embodiment, since it is possible to prevent the excessive current of the solar cell, it is possible to extend the life of the solar cell panel.

In the twenty third embodiment of the present invention, as shown in FIG. 23, the wind power generator 80 is used as the power supply means.

Therefore, the power conditioner 2 of this embodiment
According to 31, it is possible to avoid overload of the generator coil and the propeller of the wind power generator 80, and
The output can be protected from exceeding a predetermined value.

Further, in the twenty-fourth embodiment of the present invention, as shown in FIG. 24, the fuel cell 90 is used as the power supply means.

Therefore, the power conditioner 2 of this embodiment
According to No. 41, it is possible to protect the output of the fuel cell 90 from exceeding a predetermined value, and it is possible to suppress deterioration of the electrode of the fuel cell 90 due to excessive current density. .

Next, an embodiment of the twenty-fifth means of the present invention will be described.
This will be described with reference to FIG. In this embodiment, the input limiting means 217 for limiting the output of the power supply means 14 connected to the second input terminal 15 is operated by the input setting means 258 for setting the input power. is there.

That is, 251 is the power conditioner of this embodiment, and 62 is the first input terminal of the power conditioner 251, which is in the shape of a plug and is connected to the commercial power supply 58. 13 is a power conditioner 25
The power supply means 10 is connected to the second input terminal 1. 5
Reference numeral 4 denotes an output terminal of the power conditioner 251, which has the shape of a plug receiver and is connected to a load 49. Coupling means 15
Is between the first input terminal 62 and the output terminal 54. The power converting means 16 and the input limiting means 217 are provided between the second input terminal 13 and the coupling means 15. An input setting unit 258 is a switch or the like having a function of setting an input limit value from the second input terminal 13 and transmitting the information to another. An input limit value from the second input terminal 13 is set in the input setting means 258, and information is transmitted to the input limiting means 217.

The operation of this embodiment will be described below. According to the present embodiment, the output value of the power supply means 14 restricted by the input restriction means 217 can be freely set by the input setting means 258, and a power conditioner capable of more reliably protecting the power supply means 14 is realized. is there.

In the twenty sixth embodiment of the present invention, as shown in FIG. 26, the function of the input setting means is realized by the timer means 268. The timer means 268 has a function of setting the limit value of the electric power input to the second input terminal 15 according to the time zone.

The operation of this embodiment will be described below. The electric power supplied from the electric power supply means 14 to the second input terminal 15 is restricted by the input restriction means 217. At this time, the electric power limited by the input limiting means 217 is limited by the timer means 268 according to the time zone. That is, the power conditioner 261 of the present embodiment can change the set value of the input limiting means 217 according to, for example, daytime or nighttime. That is, the output limit of the power supply means 14 is preset in the timer means 268 for each hour, and for example, a lot of inexpensive power from the power supply means 14 is used during the daytime and nighttime during the nighttime. It is possible to realize a power conditioner that can use a large amount of electric power of the commercial power supply 60 by taking advantage of the low electric power charge.

Next, an embodiment of the twenty-seventh means of the present invention will be described with reference to FIG. The power conditioner 271 of this embodiment includes a display means 278. The display means 278 receives the information from the input limiting means 217 and displays that the power supplied by the power supply means 14 to the second input terminal 15 has reached the limit value.

With the above configuration, the user can use this display means 27.
By observing the display of No. 8, it is possible to realize the power conditioner which can grasp the standard of the amount of electric power used and can also obtain the standard of the determination of the supply capacity of the power supply means.

Next, an embodiment of the twenty-eighth means of the present invention will be described.
It will be described with reference to FIG. The power conditioner 281 of this embodiment uses the solar cell 70 as a power supply means for supplying power to the second input terminal 73. Further, the optimum power setting means 287, the power conversion means 19, and the coupling means 18 are connected to the second input terminal 73 via the connecting means 77. Optimal power setting means 287
Indicates that the operating range of the solar cell 70 is set to maximize the efficiency.

The operation of this embodiment will be described below. FIG. 29 shows the operating range of the solar cell 70 included in the optimum power setting means 287 of this embodiment. As shown in FIG. 29, in the solar cell 70, when the product of the output current and the output voltage exceeds a predetermined range, the efficiency is extremely lowered or the element is destroyed. The point shown as the optimum operating point in the figure is the point at which the product of this output current and the output voltage is maximum, and the shaded area indicates the optimum operating range. The power conditioner 281 according to the present embodiment ensures that the electric power of the solar cell 70 input to the second input terminal 73 maintains the optimum operating range to efficiently use the solar cell 70 and protect the elements. It is a measure.

In the twenty-ninth embodiment of the present invention, as shown in FIG. 30, a fuel cell 90 is used as a power supply means for supplying power to the second input terminal 93. Is. Further, the second input terminal 93 is connected to a startup power limiter 297 that limits the output power of the fuel cell 90 at startup.

The operation of this embodiment will be described below. FIG. 31 shows the limiting characteristics of the power-on-startup limiting means 297 of this embodiment. That is, it shows the starting characteristics of the fuel cell 90. As shown in the figure, the fuel cell 90 has a characteristic that it cannot be smoothly started when the supplied power becomes excessive at the time of starting. The power conditioner 291 of this embodiment
The startup power setting means 297 causes the second input terminal 93 to operate.
The supplied power is limited so that the power supplied to the fuel cell is within the range of the starting characteristic so that the fuel cell 90 can be started smoothly. That is, the fuel cell 9
The input power from 0 is set to an initial value smaller than the rated output of the fuel cell at the time of startup, and gradually increased from this initial value to the rated value.

As described above, according to this embodiment, the fuel cell 90 is set to the initial value smaller than the rated output at startup by the startup power limiting means 297 and used as a mode in which the output is gradually increased with the passage of time. Therefore, it is possible to realize an operation that matches the speed of the chemical reaction of the electrode, and as a result, the life of the electrode can be secured.

Subsequently, an embodiment of the thirtieth means of the present invention will be described.
It will be described with reference to FIG. In this embodiment, the output of the fuel cell 90 that supplies power to the second input terminal 93 is limited by the fluctuation adjusting means 307. The fluctuation adjusting means 307 limits the fluctuation value per time to a predetermined value or less so that the current supplied by the fuel cell 90 does not fluctuate rapidly, and is composed of a switching circuit or a switching element. .

The operation of this embodiment will be described below. When the power consumption of the load 59 suddenly changes, the fluctuation adjusting means 30
Reference numeral 7 serves to suppress the temporal change amount of the output of the fuel cell 90 to a predetermined value or less. That is, the fuel cell 9
The output is suppressed so that the output of 0 matches the speed of the chemical reaction of the electrode. As a result, the output terminal 58
From the power supplied from the load 59 to the load 59, the shortage in the output of the fuel cell 90 is supplied from the commercial power source connected to the first input terminal 62.

With the above-described structure, the fuel cell 90 can operate in conformity with the speed of the chemical reaction of the electrodes, and as a result, a power conditioner that can secure the life of the electrodes can be realized.

[0145]

The first means of the present invention comprises an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying power. And a power conversion means connected between the first input terminal and the output terminal and a power conversion means connected between the second input terminal and the coupling means. If the power is insufficient, the shortage of power can be supplied by the input from the commercial power source, and if the power supply means stops the power supply, the load can be driven by the input from the commercial power source. It is possible to realize a power conditioner that is economical and has a wide range of uses with a reduced amount of use.

The second means of the present invention comprises an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying electric power. The first input terminal is connected to the rectifying means, the second input terminal is connected to the coupling means, and the output terminal is connected to the power converting means. It is possible to realize a power conditioner that can maintain the supply of electric power by using the electric power of the commercial power supply even if the supply of electric power from the means is stopped.

A third means of the present invention comprises an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying electric power. The power supplied by the power supply means has a structure in which the rectifying means is connected to the first input terminal, the coupling means is connected to the second input terminal through the power adjusting means, and the power converting means is connected to the output terminal. It is possible to realize a power conditioner capable of surely supplying electric power suitable for a load even when there is irregularity.

A fourth means of the present invention comprises an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying power. Especially, since the output terminal is formed in the shape of a plug receiver, it is possible to realize a power conditioner in which it is particularly easy to connect a load.

The fifth means of the present invention comprises an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying power. The output terminal is configured as an outlet so that a power conditioner in which a power plug of a commercially available electric appliance can be directly inserted into the power conditioner for use can be realized.

The sixth means of the present invention comprises an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying power. The first input terminal has a configuration in the shape of a plug so that a power conditioner that can be easily connected to a commercial power source can be realized.

The seventh means of the present invention is to realize a power conditioner capable of driving a load by utilizing infinitely free solar energy, particularly when the power supply means is a solar cell.

The eighth means of the present invention can realize a power conditioner capable of driving a load by utilizing infinitely free wind energy, in particular, by using a wind power generator as the power supply means.

The ninth means of the present invention is to realize a power conditioner capable of driving a load by utilizing the energy of the fuel cell economically, particularly when the power supply means is a fuel cell.

The tenth means of the present invention comprises an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying power. , Coupling means between the first input terminal and the output terminal, power conversion means between the second input terminal and the coupling means, and an input for detecting voltage / frequency at the first input terminal. By connecting the power source detecting means to each other, transmitting the information of the input power source detecting means to the power converting means, and setting the output of the output terminal to the same voltage and frequency as the commercial power source, a wide variety of loads can be used. It is possible to realize a possible power conditioner.

An eleventh means of the present invention comprises an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying power. A coupling means is provided between the first input terminal and the output terminal via the first power conversion means for converting the frequency of the commercial power source into the frequency set by the frequency setting means.
Between the second input terminal and the coupling means, a second power conversion means for converting the output of the power supply means to the frequency set by the frequency setting means is connected, and the commercial frequency is different. Even a device can realize a power conditioner that can be used as a load.

A twelfth means of the present invention comprises an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying power. Between the first input terminal and the output terminal, the frequency conversion means for converting the frequency, and the coupling means for receiving the output of the frequency conversion means is connected, the second input terminal to As a configuration in which power conversion means for converting power to the frequency set by the frequency setting means and the voltage set by the voltage setting means is connected, even equipment with different commercial frequencies and commercial voltages can be used as a load. It is possible to realize a possible power conditioner.

A thirteenth means of the present invention comprises an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying power. The first input terminal is provided with a coupling means via the first power conversion means, the second input terminal is provided with a coupling means, and the output terminal is provided with an output of the coupling means. A power conditioner capable of setting the frequency of the power supplied to the load by the frequency setting means can be realized by connecting the second power converting means for converting the power to the frequency set by the frequency setting means.

A fourteenth means of the present invention comprises an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying power. The first input terminal is provided with a coupling means via the first power conversion means, the second input terminal is provided with a coupling means, and the output terminal is provided with an output of the coupling means. The second power conversion means for converting power into the frequency set by the voltage setting means and the voltage set by the voltage setting means is connected, and the voltage and frequency of the power supplied to the load are set by the voltage setting means and the frequency setting means. It is possible to realize a possible power conditioner.

A fifteenth means of the present invention comprises an output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying power. A connecting means is connected between the first input terminal and the output terminal via a switch means for adjusting power.
A power conversion means is connected between the second input terminal and the coupling means through a power detection means, and when the detection output of the power detection means is equal to or higher than a reference value, the power supply from the commercial power supply is stopped and the power is supplied. When the output of the supply means is used, and when the value is less than the reference value, the power of the commercial power supply and the power of the power supply means are used together so that the power supplied to the load is from the power supply means rather than the commercial power supply. It is possible to realize a power conditioner that can prioritize.

In the sixteenth means of the present invention, the power supply means constituting the fifteenth means of the present invention is a solar cell, and the power supplied to the load can be prioritized from the solar cell over the commercial power source. It is possible to realize a power conditioner.

According to a seventeenth means of the present invention, the power supply means constituting the fifteenth means of the present invention is a wind power generator, and the power supplied to the load is from a wind power generator rather than a commercial power source. It is possible to realize a power conditioner that can be prioritized.

In the eighteenth means of the present invention, the electric power supply means constituting the fifteenth means of the present invention is used as a fuel cell, and the electric power supplied to the load can be prioritized over the commercial power supply. It is possible to realize a power conditioner.

The nineteenth means of the present invention is the same as the fifteenth means of the present invention, in which display means for displaying that the electric power received from the electric power supply means is below a reference value is added. It is possible to realize a power conditioner that can quickly detect an abnormality in the output of the power supply means.

A twentieth means of the present invention is the structure of the fifteenth means of the present invention, wherein display means for displaying the ratio of the input power from the commercial power source and the input power from the power supply means is added. As a result, it is possible to realize a power conditioner that can determine the price standard for the amount of power used and the stability of the power supply means.

The twenty-first means of the present invention has, in the configuration of the fifteenth means of the present invention, an input limiting means for holding the predetermined value when the input power from the power supply means reaches the predetermined value. As an added configuration, it is possible to realize a power conditioner capable of protecting the power supply means.

The twenty-second means of the present invention has a structure in which the power supply means constituting the fifteenth means of the present invention is a solar cell, which can protect the solar cell and prolong the life of the panel of the solar cell. It realizes a power conditioner that can be used.

The twenty-third means of the present invention is such that the power supply means constituting the twenty-first means of the present invention is a wind power generator, and the generator coil of the wind power generator and the overload of the propeller are overloaded. It is possible to realize a power conditioner that can avoid the above and protect the wind power generator.

The twenty-fourth means of the present invention has a constitution in which the power supply means constituting the twenty-first means of the present invention is a fuel cell, and the current density of the electrodes of the fuel cell becomes excessive and deteriorates. This is to realize a power conditioner that can prevent this.

The twenty-fifth means of the present invention has, in addition to the configuration of the fifteenth means of the present invention, an input setting means for setting the input power from the power supply means, and this input power has a predetermined value. When the above condition is reached, it is possible to realize a power conditioner capable of further reliably protecting the power supply means by providing the input limiting means for maintaining the predetermined value based on the information of the input setting means.

The twenty-sixth means of the present invention has, in the configuration of the fifteenth means of the present invention, a timer means for setting the input power from the power supply means based on time. A power conditioner that uses a lot of cheap power from the power supply means during the daytime and uses a lot of cheap nighttime power from commercial power sources at night as a configuration with input limiting means for setting a predetermined value It is possible.

The twenty-seventh means of the present invention comprises, in addition to the configuration of the twenty-sixth means of the present invention, a display means for displaying that the input power from the power supply means has reached a predetermined value. As a configuration, it is possible to realize a power conditioner capable of grasping the standard of the amount of electric power used and also the standard of judging the supply capacity of the power supply means.

The twenty-eighth means of the present invention comprises an output terminal for connecting a load, a first input terminal for connecting a commercial power source,
A second input terminal for connecting a solar cell is provided, and coupling means is connected between the first input terminal and the output terminal, and power conversion means is connected between the second input terminal and the coupling means. The second input terminal is configured to receive the electric power at the optimum operating point of the solar cell, and can realize a power conditioner in which the input power from the commercial power source is suppressed as much as possible.

The twenty-ninth means of the present invention comprises an output terminal for connecting a load and a first input terminal for connecting a commercial power source,
A second input terminal for connecting a fuel cell is provided, and a coupling means is connected between the first input terminal and the output terminal via a switch means for adjusting power, and the second input terminal is connected. A power conversion means is connected between the coupling means and the coupling means through a current detection means for detecting a current, and when the input power from the fuel cell reaches a predetermined value, the predetermined value is maintained, The predetermined value is set to an initial value that is smaller than the rated output of the fuel cell at the time of startup, and is configured to gradually increase from this initial value, in particular, because it is possible to match the speed of the chemical reaction of the electrode of the fuel cell, the electrode life is secured. It is possible to realize an excellent power conditioner that can be used.

The thirtieth means of the present invention is the same as the twenty-ninth means of the present invention, when the power consumption of the load changes suddenly,
Even if the power consumption of the load fluctuates abruptly, the speed of the chemical reaction of the electrodes of the fuel cell will be matched especially by adding a configuration that suppresses the temporal fluctuation of the input power from the second input terminal to a predetermined value or less. Therefore, it is possible to realize an excellent power conditioner that can secure the life of the electrode.

[Brief description of drawings]

FIG. 1 is a block diagram showing a power conditioner in an embodiment of the first means of the present invention.

FIG. 2 is a block diagram showing a power conditioner in an embodiment of the second means of the present invention.

FIG. 3 is a block diagram showing a power conditioner in an embodiment of the third means of the present invention.

FIG. 4 is a block diagram showing a power conditioner in an embodiment of the fourth means of the present invention.

FIG. 5 is a block diagram showing a power conditioner in an embodiment of the fifth means of the present invention.

FIG. 6 is a block diagram showing a power conditioner in an embodiment of the sixth means of the present invention.

FIG. 7 is a block diagram showing a power conditioner in an embodiment of a seventh means of the present invention.

FIG. 8 is a block diagram showing a power conditioner in an embodiment of the eighth means of the present invention.

FIG. 9 is a block diagram showing a power conditioner in an embodiment of the ninth means of the present invention.

FIG. 10 is a block diagram showing a power conditioner according to an embodiment of tenth means of the present invention.

FIG. 11 is a block diagram showing a power conditioner in an embodiment of eleventh means of the present invention.

FIG. 12 is a block diagram showing a power conditioner in an embodiment of a twelfth means of the present invention.

FIG. 13 is a block diagram showing a power conditioner in an embodiment of the thirteenth means of the present invention.

FIG. 14 is a block diagram showing a power conditioner in an embodiment of the fourteenth means of the present invention.

FIG. 15 is a block diagram showing a power conditioner in an embodiment of the fifteenth means of the present invention.

FIG. 16 is a block diagram showing a power conditioner in an embodiment of sixteenth means of the present invention.

FIG. 17 is a block diagram showing a power conditioner in an embodiment of the seventeenth means of the present invention.

FIG. 18 is a block diagram showing a power conditioner in an embodiment of eighteenth means of the present invention.

FIG. 19 is a block diagram showing a power conditioner in an embodiment of nineteenth means of the present invention.

FIG. 20 is a block diagram showing a power conditioner in an embodiment of the twentieth means of the present invention.

FIG. 21 is a block diagram showing a power conditioner in an embodiment of the twenty-first means of the present invention.

FIG. 22 is a block diagram showing a power conditioner in an embodiment of the twenty second means of the present invention.

FIG. 23 is a block diagram showing a power conditioner in an embodiment of the twenty third means of the present invention.

FIG. 24 is a block diagram showing a power conditioner in an embodiment of the twenty-fourth means of the present invention.

FIG. 25 is a block diagram showing a power conditioner in an embodiment of the twenty-fifth means of the present invention.

FIG. 26 is a block diagram showing a power conditioner in an embodiment of the twenty-sixth means of the present invention.

FIG. 27 is a block diagram showing a power conditioner in an embodiment of the twenty-seventh means of the present invention.

FIG. 28 is a block diagram showing a power conditioner in an embodiment of the twenty-eighth means of the present invention.

FIG. 29 is a characteristic diagram of limiting the power supplied to the second input terminal of the optimum power setting means.

FIG. 30 is a block diagram showing a power conditioner in an embodiment of the twenty-ninth means of the present invention.

FIG. 31 is a characteristic diagram of limiting the power supplied to the second input terminal of the startup power limiting means.

FIG. 32 is a block diagram showing a power conditioner in an embodiment of the thirtieth means of the present invention.

FIG. 33 is a block diagram showing a conventional power conditioner.

[Explanation of symbols]

 Reference Signs List 11 power conditioner 12 commercial power supply 13 first input terminal 14 power supply means 15 second input terminal 16 load 17 output terminal 18 coupling means 19 power conversion means 21 power conditioner 22 first input terminal 23 rectification means 24 coupling Means 25 Second input terminal 26 Power supply means 27 Power conversion means 28 Output terminal 35 First input terminal 36 First power conversion means 37 Power supply means 38 Second input terminal 39 Second power conversion means 40 Coupling Means 41 Third power conversion means 42 Output terminal 43 Power conditioner 50 First input terminal 51 Second input terminal 52 Output terminal 53 Power conditioner 55 Power conditioner 56 First input terminal 57 Second input terminal 58 output terminal 59 load 60 commercial power supply 61 power conditioner 62 first input terminal 70 solar cell 71 power conditioner 73 second input terminal 77 connecting means 80 wind power generator 81 power conditioner 83 second input terminal 87 connecting means 90 fuel cell 91 power conditioner 93 second Input terminal 97 Coupling means 101 Power conditioner 107 Input power supply detecting means 111 Power conditioner 117 First power converting means 118 Frequency setting means 119 Second power converting means 121 Power conditioner 129 Voltage setting means 131 Power conditioner 132 Second One power conversion means 133 Second power conversion means 138 Frequency setting means 141 Power conditioner 149 Voltage setting means 151 Power conditioner 157 Switch means 158 Power detection means 161 Power conditioner Nona 171 Power conditioner 181 Power conditioner 191 Power conditioner 197 Power detection means 198 Display means 201 Power conditioner 207 First power detection means 209 Display means 211 Power conditioner 217 Input restriction means 221 Power conditioner 227 Input restriction Means 231 power conditioner 237 input limiting means 241 power conditioner 247 input limiting means 251 power conditioner 258 input setting means 261 power conditioner 268 timer means 271 power conditioner 278 display means 281 power conditioner 287 optimum power setting means 291 power Conditioner 297 Starting power limiting means 301 Power conditioner 307 Fluctuation adjusting means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuru Takechi 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Taketoshi Sato 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (30)

[Claims] 1. A first input terminal comprising: an output terminal for connecting a load; a first input terminal for connecting a commercial power source; and a second input terminal for connecting power supply means for supplying electric power. A power conditioner in which a coupling means is connected between the input terminal and the output terminal, and a power conversion means is connected between the second input terminal and the coupling means. 2. An output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying electric power, the first input terminal. A power conditioner in which rectifying means is connected to the second input terminal, coupling means is connected to the second input terminal, and power converting means is connected to the output terminal. 3. An output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting a power supply means for supplying electric power, the first input terminal. A power conditioner in which the first power conversion means is connected to the second input terminal, the coupling means is connected to the second input terminal via the second power conversion means, and the third power conversion means is connected to the output terminal. 4. An output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying electric power, the output terminal and the first terminal A power conditioner in which the input terminal and the second input terminal have different shapes. 5. An output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying electric power, the output terminal being an outlet. The power conditioner according to any one of claims 1 to 4. 6. An output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying electric power, the first input terminal. The power conditioner according to any one of claims 1 to 5, which has the shape of a plug. 7. The solar cell as the power supply means.
The power conditioner described in any one of 1 to 6. 8. The power conditioner according to claim 1, wherein the power supply means is a wind power generator. 9. A fuel cell as the power supply means.
The power conditioner described in any one of 1 to 6. 10. An output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting a power supply means for supplying electric power, the first input terminal. Connection means between the second input terminal and the coupling means, and a power conversion means between the second input terminal and the coupling means, and an input power source detection means for detecting the voltage / frequency. A power conditioner that transmits the information of the input power supply detection means to the power conversion means and sets the output of the output terminal to the same voltage and frequency as the commercial power supply. 11. An output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying electric power, the first input terminal. Between the output terminal and the output terminal, a coupling means is provided between the second input terminal and the coupling means via a first power conversion means for converting the frequency of the commercial power source into a frequency set by the frequency setting means. Is a power conditioner to which second power conversion means for converting the output of the power supply means into the frequency set by the frequency setting means is connected. 12. An output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying electric power, the first input terminal. Between the output terminal and the output terminal, a coupling means connected via the first power conversion means for converting the frequency of the commercial power source by the frequency setting means and the voltage of the commercial power source by the voltage setting means is connected, and the second connecting means is connected. A power conditioner in which a second power conversion means for converting power into a frequency set by the frequency setting means and a voltage set by the voltage setting means is connected to the input terminal. 13. An output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting a power supply means for supplying electric power, the first input terminal. To the second input terminal, and to the output terminal, the output of the coupling means is converted to the frequency set by the frequency setting means. A power conditioner to which a second power conversion means is connected. 14. An output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying electric power, the first input terminal. A coupling means via the first power conversion means, a coupling means at the second input terminal, and an output of the coupling means at the output terminal and a frequency and voltage set by the frequency setting means. A power conditioner connected to a second power conversion means for converting power into a voltage set in the means. 15. An output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting power supply means for supplying electric power, the first input terminal. Between the output terminal and the output terminal, a coupling means is connected via a switch means for adjusting the power, and a second power conversion means is provided between the second input terminal and the coupling means via a power detection means. When the detection output of the power detection means is above the reference value, the power supply from the commercial power supply is stopped and the output of the power supply means is used, and when it is below the reference value, the power of the commercial power supply and the power supply means A power conditioner that is used together with the power supply of. 16. The power conditioner according to claim 15, wherein the power supply means is a solar cell. 17. The power conditioner according to claim 15, wherein the power supply means is a wind power generator. 18. The power conditioner according to claim 15, wherein the power supply means is a fuel cell. 19. A display means for displaying that the electric power received from the electric power supply means is below a reference value.
The power conditioner described in 5. 20. The power conditioner according to claim 15, further comprising display means for displaying the ratio of the input power from the commercial power source and the input power from the power supply means. 21. The power conditioner according to claim 15, further comprising input limiting means for maintaining the predetermined value when the input power from the power supply means reaches the predetermined value. 22. The power conditioner according to claim 21, wherein the power supply means is a solar cell. 23. The power conditioner according to claim 21, wherein the power supply means is a wind power generator. 24. The power conditioner according to claim 21, wherein the power supply means is a fuel cell. 25. An input setting means for setting the input power from the power supply means, and when the input power reaches a predetermined value, the input limiting means keeps this predetermined value based on the information of the input setting means. The power conditioner according to claim 15, further comprising: 26. The power conditioner according to claim 15, further comprising timer means for setting the input power from the power supply means on the basis of time, and input limiting means for setting a predetermined value by the timer means. 27. A display means for displaying that the input power from the power supply means has reached a predetermined value.
Indicated power conditioner. 28. An output terminal for connecting a load, a first input terminal for connecting a commercial power source, and a second input terminal for connecting a solar cell are provided, and the first input terminal and the output terminal are connected. A power conditioner in which coupling means is connected in between and power conversion means is connected between the second input terminal and the coupling means, and the second input terminal receives power at an optimum operating point of the solar cell. 29. The power conditioner according to claim 24, wherein the predetermined value is an initial value smaller than the rated output of the fuel cell at the time of start-up and is gradually increased from this initial value. 30. The power conditioner according to claim 29, wherein the temporal variation of the input power from the second input terminal is kept below a predetermined value when the power consumption of the load changes abruptly.