CN105656065A - Energy storage control system and method thereof - Google Patents
Energy storage control system and method thereof Download PDFInfo
- Publication number
- CN105656065A CN105656065A CN201410777984.4A CN201410777984A CN105656065A CN 105656065 A CN105656065 A CN 105656065A CN 201410777984 A CN201410777984 A CN 201410777984A CN 105656065 A CN105656065 A CN 105656065A
- Authority
- CN
- China
- Prior art keywords
- super capacitor
- module
- capacitor module
- voltage
- way
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000004146 energy storage Methods 0.000 title claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 claims abstract description 91
- 239000003990 capacitor Substances 0.000 claims description 185
- 230000002457 bidirectional effect Effects 0.000 abstract 3
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 238000002955 isolation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides an energy storage control system and a method thereof. The energy storage control system comprises an AC/DC rectification module, an isolation transformer, a bidirectional DC/DC conversion module, a switch circuit and a first super capacitance module group. When a power grid has a fault and power outage is generated, the first super capacitance module group provides power for a direct current load through a conducted switch circuit. After a voltage is decreased into a first preset scope and the switch circuit is disconnected, through the bidirectional DC/DC conversion module, the first super capacitance module group continuously provides power for the direct current load. The first super capacitance module group possesses advantages that a service life is long, charging time is short and a operational temperature range is wide so as to be suitable for being a stand-by power supply of the energy storage control system. And the first super capacitance module group is directly connected to the direct current load through a power supply line with a low impedance so that power supply losses are reduced and power supply efficiency is increased. After the voltage is decreased, the bidirectional DC/DC conversion module amplifies the voltage and then provides for the direct current load so as to satisfy a voltage demand of the direct current load and increase the power supply efficiency.
Description
Technical field
The present invention relates to technical field of power systems, more particularly, it relates to a kind of energy storage control system and method.
Background technology
Electric operation power is the indispensable ingredient of power system; it is control load, emergency lighting and the living load such as circuit breaker part, closing operation, the uninterrupted equipment that DC source is provided to control, signalling arrangement, measurement, relay protection, automaton etc. Electric operation power mainly includes power exchanger and energy storage device, and wherein accumulator is energy storage device comparatively conventional in electric operation power.
Fig. 1 is the electric operation power currently with batteries to store energy, including isolating transformer 101, AC/DC rectification module 102 and accumulator 103. When line voltage normal power supply, AC/DC rectification module 102 is powered for DC load after the power supply that isolating transformer provides is carried out rectification, and the accumulator 103 for energy storage is charged; When line voltage is stopped power supply; the input of AC/DC rectification module 102 does not have power supply to input, and now the electric energy of storage is discharged by accumulator 103, to DC load continued power; guarantee power equipment runs well, and ensures that power equipment completes to protect accordingly operation.
Although the stored energy operation power supply architecture of the accumulator shown in Fig. 1 is simple, and technology maturation, but still suffer from many deficiencies, service life such as accumulator 103 is short, charging interval length, can not fully powered-on and operating temperature range narrow etc., and waste and old accumulator also can give environment, therefore still need to make improvements.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of energy storage control system and method for supplying power to, this energy storage control system has that the charging interval is short, long service life, operating temperature range width, cost is low and power supplying efficiency is high advantage.
To achieve these goals, the present invention provides following technical scheme:
The present invention provides a kind of energy storage control system, including AD/DC rectification module and isolating transformer, described isolating transformer is connected with described AC/DC rectification module, and the first outfan of described AC/DC rectification module and the second outfan are power output end, and described energy storage control system also includes:
First super capacitor module, on-off circuit and two-way DC/DC conversion module, wherein:
First end of described on-off circuit is connected with the first input end of described two-way DC/DC conversion module, second end of described on-off circuit is connected with the first outfan of described two-way DC/DC conversion module, and described first end of on-off circuit is connected with the first end of the junction point of the first input end of described two-way DC/DC conversion module with described first super capacitor module, the second end of described on-off circuit is connected with the first outfan of described AC/DC rectification module with the junction point of the first outfan of described two-way DC/DC conversion module;
Second end of described first super capacitor module is connected with the second input of described two-way DC/DC conversion module, and the second outfan of described two-way DC/DC conversion module is connected with the second outfan of described AC/DC rectification module.
Preferably, described system also includes the second super capacitor module; First end of described second super capacitor module is connected with the junction point of the second end of described on-off circuit with the first outfan of described two-way DC/DC conversion module, second end of described second super capacitor module and the second outfan of described two-way DC/DC conversion module connect, and the capacity of described second super capacitor module is less than the capacity of described first super capacitor module.
Preferably, the power decision of the DC load that the capacity of described second super capacitor module is connected by described AC/DC rectification module.
Preferably, described on-off circuit is dc switch, and the first end of described dc switch is connected with the first input end of described two-way DC/DC conversion module, and the second end of described dc switch is connected with the first outfan of described two-way DC/DC conversion module.
Preferably, described on-off circuit includes:
First diode, the second diode, the 3rd diode, the 4th diode and NPN type MOSFET pipe; The anode of described first diode is connected with the negative electrode of described second diode; The negative electrode of described first diode is connected with the negative electrode of described 3rd diode; The anode of described second diode is connected with the anode of described 4th diode; The drain electrode of described NPN type MOSFET pipe is connected with the junction point of the negative electrode of described first diode with the negative electrode of described 3rd diode; The junction point of the anode of the source electrode of described NPN type MOSFET pipe and described second diode and the anode of the 4th diode is connected.
The present invention also provides for a kind of energy storage control method, is applied in above-mentioned energy storage control system, and described method includes:
When isolating transformer is stopped power supply, control on-off circuit conducting so that the supply line between DC load and the first super capacitor module turns on;
First super capacitor module releases voltage supplied, and is that DC load is powered by voltage by the supply line turned on;
When the voltage of described first super capacitor module drops in the first preset range, control described on-off circuit and disconnect so that the supply line between DC load and the first super capacitor module disconnects;
When described supply line disconnects, the voltage input extremely two-way DC/DC conversion module of described first super capacitor module;
The voltage of input is amplified by described two-way DC/DC conversion module, and the voltage after amplifying is supplied to described DC load.
Preferably, described method is applied to above-mentioned energy storage control system, and described method also includes:
Stopping power supply at isolating transformer and control in on-off circuit disconnection process, the second super capacitor module will continue release voltage, it is provided that to DC load;
After controlling the disconnection of described on-off circuit, by the first super capacitor module by two-way DC/DC conversion module release voltage, power for DC load.
Preferably, described method also includes:
Voltage at described first super capacitor module drops in preset range and controls in described on-off circuit disconnection process, and the voltage of release is supplied to DC load by the second super capacitor module;
State on-off circuit in control to disconnect so that supply line disconnects, the voltage of described first super capacitor module inputting to two-way DC/DC conversion module.
Preferably, described method also includes:
When isolating transformer normal power supply, control described on-off circuit and disconnect so that the supply line between AC/DC rectification module and the first super capacitor module disconnects;
Described AC/DC rectification module is described first super capacitor module charging by described two-way DC/DC conversion module;
When the output voltage of described AC/DC rectification module and the difference in voltage of described first super capacitor module are in the second preset range, control the conducting of described on-off circuit so that the supply line between AC/DC rectification module and the first super capacitor module turns on;
Described AC/DC rectification module is described first super capacitor module charging by described supply line.
Preferably, described method also includes:
When isolating transformer normal power supply, described AC/DC rectification module is the second super capacitor module charging;
When stopping power supply at isolating transformer and disconnect in described supply line, the voltage input extremely two-way DC/DC conversion module of described first super capacitor module; The voltage of input is amplified by described two-way DC/DC conversion module, and the voltage after amplifying is supplied to described DC load, is charged for described second super capacitor module simultaneously.
Preferably, in above-mentioned, described in.
Compared with prior art, advantages of the present invention is as follows:
Energy storage control system provided by the invention, junction point between first super capacitor module with on-off circuit and two-way DC/DC conversion module is connected, under isolating transformer power supply trouble, can control on-off circuit conducting makes the supply line between DC load and the first super capacitor module turn on, such first super capacitor module replaces accumulator power supply in support, is that DC load is powered by the supply line turned on. And when the voltage of the first super capacitor module drops in the first preset range, it is possible to control on-off circuit and disconnect so that the supply line between AC/DC rectification module and the first super capacitor module disconnects; So two-way DC/DC conversion module starts, and makes two-way DC/DC conversion module that the voltage of input to be amplified, and the voltage after amplifying is supplied to DC load.
Owing to the first super capacitor module is longer than service lifetime of accumulator, charging interval is short and the advantage such as operating temperature range width, therefore the first super capacitor module is especially suitable for the back-up source replacing accumulator as energy storage control system, and the first super capacitor module directly can be connected with DC load by supply line, and the impedance of supply line is relatively low, such that it is able to decrease current supply loss, improve power supplying efficiency, when the voltage of the first super capacitor module drops in the first preset range simultaneously, first super capacitor module is supplied to DC load after the voltage of the first super capacitor module being amplified by two-way DC/DC conversion module, so that voltage meets the voltage requirements of DC load, that is even if the voltage of the first super capacitor module cannot meet the voltage requirements of DC load, still DC load can be powered by energy storage control system provided by the invention, thus improve the power supplying efficiency of energy storage control system.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Fig. 1 is the structural representation of existing energy storage control system;
A kind of structural representation of the energy storage control system that Fig. 2 provides for the embodiment of the present invention;
The another kind of structural representation of the energy storage control system that Fig. 3 provides for the embodiment of the present invention;
A kind of schematic diagram of the energy storage control system breaker in middle circuit that Fig. 4 provides for the embodiment of the present invention;
Fig. 5 is a kind of schematic diagram of the current direction of on-off circuit shown in Fig. 4;
Fig. 6 is the another kind of schematic diagram of the current direction of on-off circuit shown in Fig. 4;
The first flow chart of the energy storage control method that Fig. 7 provides for the embodiment of the present invention;
The second flow chart of the energy storage control method that Fig. 8 provides for the embodiment of the present invention;
The third flow chart of the energy storage control method that Fig. 9 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiments provide a kind of energy storage control system, for DC load is powered, the structural representation of this energy storage control system is as in figure 2 it is shown, include: AC/DC rectification module 11, isolating transformer the 12, first super capacitor module 13, on-off circuit 14 and two-way DC/DC conversion module 15.
Wherein, described isolating transformer 12 is connected with described AC/DC rectification module 11, and the first outfan of described AC/DC rectification module 11 and the second outfan are power output end; First end of described on-off circuit 14 is connected with the first input end of described two-way DC/DC conversion module 15, second end of described on-off circuit 14 is connected with the first outfan of described two-way DC/DC conversion module 15, and described first end of on-off circuit 14 is connected with the first end of the junction point of the first input end of described two-way DC/DC conversion module 15 with described first super capacitor module 13, the second end of described on-off circuit 14 is connected with the first outfan of described AC/DC rectification module 11 with the junction point of the first outfan of described two-way DC/DC conversion module 15.
Second end of described first super capacitor module 13 is connected with the second input of described two-way DC/DC conversion module 15, and the second outfan of described two-way DC/DC conversion module 15 is connected with the second outfan of described AC/DC rectification module 11.
In embodiments of the present invention, when under isolating transformer 12 normal power supply state, AC/DC rectification module 11 is directly powered for DC load, to ensure that DC load can normal operation, first super capacitor module 13 is charged when isolating transformer 12 normal power supply simultaneously, store electric energy, in case of need. Namely AC/DC rectification module 11 is not only DC load and powers, and is also that the first super capacitor module 13 is powered simultaneously.
In the first super capacitor module 13 charging process, state during the output voltage difference of the voltage of the first super capacitor module 13 and AC/DC rectification module 11 more than 1V-2V calls the charging initial stage, and state during the output voltage difference of the voltage of the first super capacitor module 13 and AC/DC rectification module 11 less than 1V-2V calls the charging later stage.
At the charging initial stage, AC/DC rectification module 11 is that the first super capacitor module 13 charges by two-way DC/DC conversion module 15, when the voltage of the first super capacitor module 13 and the output voltage difference of AC/DC rectification module 11 are less than 1V-2V, it is directly that the first super capacitor mould 13 groups is powered that conducting on-off circuit 14, AC/DC rectification module 11 will pass through on-off circuit 14.Owing to isolating transformer 12 is normal operation mostly in electrical network, on-off circuit being controlled for conducting state so being typically in the charging later stage in electrical network always, being joined directly together with AC/DC rectification module 11 realizing the first super capacitor module 13. It should be noted that in the first super capacitor module 13 charging process, in energy storage control system, the conversion of each electrical part duty is all automatically obtained by programme-control.
When there is power supply trouble in isolating transformer 12, owing to AC/DC rectification module 11 loses electric energy, electric energy can not be provided for DC load, therefore by the first super capacitor module 13 power supply in support, the electricity stored be discharged power for DC load in charging process. Owing to on-off circuit 14 is constantly in conducting state, therefore the first super capacitor module 13 directly can be powered for DC load by on-off circuit 14, when the supply voltage of the first super capacitor module 13 drops to the first preset range, control on-off circuit 14 to disconnect, make the first super capacitor module 13 be powered for DC load by two-way DC/DC conversion module 15.
It should be noted that the first preset range is to be determined by the rated voltage of DC load. As, for the DC load of rated voltage 12V, when the voltage of the first super capacitor module 13 drops to 10V-11V, on-off circuit disconnects, and two-way DC/DC conversion module 15 starts; Namely for the DC load of rated voltage 12V, the first preset range is 10V-11V; And be the DC load of 24V for rated voltage, then when the voltage of the first super capacitor module 13 drops to 20V-22V, just disconnect on-off circuit; Namely for the DC load of rated voltage 24V, the first preset range is 20V-22V; Namely when the rated voltage difference of DC load, the also difference of the first preset range.
Owing to two-way DC/DC conversion module 15 can as booster circuit, there is boost function, therefore when the low-voltage in the first super capacitor module 13 is after two-way DC/DC conversion module 15, low-voltage in first super capacitor module 13 is increased to the magnitude of voltage that DC load requires, namely remaining electric energy is fully supplied to DC load by two-way DC/DC conversion module by the first super capacitor module 13. It should be noted that DC load require magnitude of voltage be really DC load require a voltage range, be typically in actual should in, client can provide the voltage range values of DC load according to demand.
Energy storage control system provided by the invention is can be seen that from technique scheme, junction point between first super capacitor module with on-off circuit and two-way DC/DC conversion module is connected, under isolating transformer power supply trouble, can control on-off circuit conducting makes the supply line between DC load and the first super capacitor module turn on, such first super capacitor module replaces accumulator power supply in support, is that DC load is powered by the supply line turned on. And when the voltage of the first super capacitor module drops in the first preset range, it is possible to control on-off circuit and disconnect so that the supply line between DC load and the first super capacitor module disconnects; The voltage input of such first super capacitor module, to two-way DC/DC conversion module, makes two-way DC/DC conversion module that the voltage of input to be amplified, and the voltage after amplifying is supplied to DC load.
Owing to the first super capacitor module is longer than service lifetime of accumulator, charging interval is short and the advantage such as operating temperature range width, therefore the first super capacitor module is especially suitable for the back-up source replacing accumulator as energy storage control system, and the first super capacitor module directly can be connected with DC load by supply line, and the impedance of supply line is relatively low, such that it is able to decrease current supply loss, improve power supplying efficiency, when the voltage of the first super capacitor module drops in the first preset range simultaneously, first super capacitor module is supplied to DC load after the voltage of the first super capacitor module being amplified by two-way DC/DC conversion module, so that voltage meets the voltage requirements of DC load, that is even if the voltage of the first super capacitor module cannot meet the voltage requirements of DC load, still DC load can be powered by energy storage control system provided by the invention, thus improve the power supplying efficiency of energy storage control system.
Refer to Fig. 3, it illustrates the another kind of structural representation of a kind of energy storage control system that the embodiment of the present invention provides, on the basis of Fig. 2, it is also possible to include the second super capacitor module 16, wherein:
First end of described second super capacitor module 16 is connected with the junction point of the second end of described on-off circuit 14 with the first outfan of described two-way DC/DC conversion module 15, second end of described second super capacitor module 16 and the second outfan of described two-way DC/DC conversion module 15 connect, and the capacity of described second super capacitor module 16 is less than the capacity of described first super capacitor module 13.
In the embodiment of the present invention, when isolating transformer 12 normal power supply, AC/DC rectification module 11, while charging for the first super capacitor module 13, is also that the second super capacitor module 16 charges so that the second super capacitor module 16 stores electric energy.
Occurring that power supply trouble and on-off circuit 14 are held at isolating transformer 12, the first super capacitor module 13 discharges the electric energy of storage together with the second super capacitor module 16, powers for DC load. When the magnitude of voltage of the first super capacitor module 13 drops to the first preset range and on-off circuit 14 disconnects moment, several milliseconds are taken around to DC/DC conversion module 15 normal operation, so continuing in this period to be powered for DC load by the second super capacitor module 16 owing to starting DC/DC conversion module 15. On-off circuit 14 is started two-way DC/DC conversion module 15 at once, when after two-way DC/DC conversion module 15 normal operation, the first super capacitor module 19 is powered for DC load by two-way DC/DC conversion module 15 while disconnecting.
Continuing as while DC load powers at the first super capacitor module 13, the first super capacitor module 13 is that the second super capacitor module 16 charges. Wherein, the capacitance of the second super capacitor module 16 is that the power requirement according to DC load is determined, in different application circuits, the capacitance of the second super capacitor module 16 is also not quite similar.
On-off circuit 14 in embodiments of the present invention can be the dc switch 14 in Fig. 2 or Fig. 3, specifically by programme controlled relay, it should be noted that, on-off circuit 14 is possible not only to make dc switch, can also be other device, such as the switch of semiconductor device MOSFET and four diode composition. On-off circuit as shown in Figure 4, wherein on-off circuit includes:
First diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4 and NPN type MOSFET manage; The anode of described first diode D1 is connected with the negative electrode of described second diode D2; The negative electrode of described first diode D1 is connected with the negative electrode of described 3rd diode D3; The anode of described second diode D2 is connected with the anode of described 4th diode D4; The drain electrode of described NPN type MOSFET pipe is connected with the junction point of the negative electrode of described 3rd diode D3 with the negative electrode of described first diode D1; The junction point of the anode of the source electrode of described NPN type MOSFET pipe and described second diode D2 and the anode of the 4th diode D4 is connected.
When the NPN type MOSFET shown in Fig. 4 manages after switch, electric current has two kinds of flow directions, and respectively electric current as shown in Figure 5 flows the two kinds of situations flowed from right to left with the electric current shown in Fig. 6 from left to right.
In Figure 5, when M1 after switch, electric current flows from left to right, and namely electric current is flowed into by the anode of the first diode D1, the negative electrode of the first diode D1 flow to the drain electrode of M1, then flowed out by the source electrode of M1, through the 4th diode D4 flow out.
In figure 6, when M1 after switch, electric current flows from right to left, and namely electric current is flowed into by the anode of the 3rd diode D3, the negative electrode of the 3rd diode D3 flow to the drain electrode of M1, then flowed out by the source electrode of M1, through second diode D2 flow out.
Two kinds of above-mentioned current direction modes, are effectively guaranteed the properly functioning of on-off circuit, when the on-off circuit of Fig. 4 there being a diode go wrong, still can normal power supply, only need to select the current direction mode adapted.
In the present embodiment, the second super capacitor module 16 is adopted to disconnect moment at on-off circuit 14, power for DC load, effectively avoid on-off circuit 14 and when two-way DC/DC conversion module 15 switches mutually, first super capacitor module 13 is the mains ripple of the DC load that DC load causes when directly powering, achieve the seamless switching between on-off circuit 14 and two-way DC/DC conversion module 15, it is ensured that the stability of voltage.
Corresponding with said system embodiment, the embodiment of the present invention also provides for a kind of energy storage control method. Refer to Fig. 7, it illustrates the first flow chart of a kind of energy storage control method that the embodiment of the present invention provides, it is possible to comprise the following steps:
Step 100: when isolating transformer is stopped power supply, controls on-off circuit conducting so that the supply line between DC load and the first super capacitor module turns on.
It is understandable that, in order to avoid when isolating transformer is stopped power supply, AC/DC rectification module can not occur for the situation that DC load is powered, need to turn on the on-off circuit between the first super capacitor module and DC load, supply line's conducting between such DC load and the first super capacitor module, first super capacitor module can be that DC load is powered by supply line, to realize the first super capacitor module back-up source as DC load.
Step 101: the first super capacitor module releases voltage supplied, and be that DC load is powered by voltage by the supply line turned on.
After isolating transformer is stopped power supply, power supply early stage, first super capacitor module directly provides electric energy for DC load by turning on on-off circuit, the electric energy stored in release charging process, wherein power supply early stage is specially that the rated voltage of the first super capacitor module voltage and DC load is only poor is approximately 1V-2V, e.g., when the rated voltage of DC load is 12V, when the voltage of the first super capacitor module has not degraded the state of 10V-11V, for the power supply initial stage; It should be noted that the rated voltage of DC load is to arrange according to the demand in concrete application.
Step 102: when the voltage of the first super capacitor module drops in the first preset range, controls on-off circuit and disconnects so that the supply line between DC load and the first super capacitor module disconnects.
When the voltage of described first super capacitor module drops in the first preset range, the power supply initial stage of the first super capacitor module terminates, now the voltage of the first super capacitor module cannot meet DC load needs, then need to disconnect on-off circuit, and adopting other paths is that DC load is powered.
It should be noted that the first preset range is to be determined by the rated voltage of DC load. Such as the DC load for rated voltage 12V, the first preset range is 10V-11V; And for the DC load of rated voltage 24V, the first preset range is 20V-22V. Namely when the rated voltage difference of DC load, the also difference of the first preset range.
Step 103: when supply line disconnects, the voltage input extremely two-way DC/DC conversion module of the first super capacitor module release.
Disconnecting after on-off circuit, i.e. phase after power up, the first super capacitor module is that DC load is powered by two-way DC/DC conversion module.
The voltage of input is amplified by step 104:DC/DC conversion module, and the voltage after amplifying is supplied to described DC load.
Owing to two-way DC/DC conversion module can be booster circuit, there is boost function, therefore when the low-voltage in the first super capacitor module is after two-way DC/DC conversion module, low-voltage in first super capacitor module is increased to the magnitude of voltage that DC load requires, namely remaining electric energy is fully supplied to DC load by two-way DC/DC conversion module by the first super capacitor module. It should be noted that DC load require magnitude of voltage be really DC load require a voltage range, be typically in actual should in, client can provide the voltage range values of DC load according to demand.
In embodiment provided by the invention, the first super capacitor module power supply in support, directly powered for DC load by on-off circuit circuit. When on-off circuit turns on, owing to conduction impedance is low, the first super capacitor module and DC load are directly connected to, and decrease current supply loss, improve power supplying efficiency. When the voltage of the first super capacitor module drops to the first preset range, start two-way DC/DC conversion module, making the first super capacitor module is that DC load is powered by two-way DC/DC conversion module, in this course, the low-voltage of the first super capacitor module is raised until meeting the requirement magnitude of voltage of DC load by two-way DC/DC conversion module, improve the utilization rate of electric energy in the first super capacitor module, improve power supplying efficiency.
Refer to Fig. 8, it illustrates the second flow chart of a kind of energy storage control method that the embodiment of the present invention provides, it elaborates that the first super capacitor module and the second super capacitor module are the power supply process of DC load, it is possible to comprise the steps:
Step 200: stopping power supply and on-off circuit is held in process at isolating transformer, the voltage of release is supplied to DC load by the first super capacitor module.
When isolating transformer is stopped power supply, on-off circuit tends to remain on, and therefore the first super capacitor module directly can provide emergency power supply for DC load.
Step 201: the voltage at the first super capacitor module drops in the first preset range and controls, in on-off circuit disconnection process, start two-way DC/DC conversion module and by the second super capacitor module, the voltage of release be supplied to DC load.
Voltage at described first super capacitor module drops to after in the first preset range, it is necessary to the duty of switching on-off circuit and two-way DC/DC conversion module, powers for DC load realizing the first super capacitor module, therefore needs to disconnect on-off circuit. While disconnecting on-off circuit, start two-way DC/DC conversion module at once. Several milliseconds are needed to normal operation because starting two-way DC/DC conversion module, so the second super capacitor module need to during this period of time be powered for DC load, to avoid the unnecessary fluctuation of the DC load supply voltage caused in on-off circuit and two-way DC/DC conversion module handoff procedure.
After step 203:DC/DC conversion module starts, the voltage of the first super capacitor module release is amplified, and the voltage after amplifying is supplied to described DC load.
By the boosting of two-way DC/DC conversion module, make the low-voltage in the first super capacitor module be increased to the magnitude of voltage that DC load requires, continue as DC load and power, make full use of the dump energy in the first super capacitor module.Owing to the second super capacitor module and DC load are connected in parallel, so being while DC load is powered at the first super capacitor module, being again the second super capacitor module charging, and then storing electricity.
Refer to Fig. 9, it illustrates the third flow chart of a kind of energy storage control method that the embodiment of the present invention provides, it elaborates the work process of energy storage control system in isolating transformer normal power supply situation, it is possible to comprise the steps:
Step 300: when isolating transformer normal power supply, controls described on-off circuit and disconnects so that the supply line between AC/DC rectification module and the first super capacitor module disconnects.
Step 301: described AC/DC rectification module is described first super capacitor module charging by described two-way DC/DC conversion module. When, under isolating transformer normal power supply state, AC/DC rectification module is directly powered for DC load, with ensure DC load can normal operation, simultaneously AC/DC rectification module is that the first super capacitor module charges by two-way DC/DC conversion module.
Step 302: when the output voltage of described AC/DC rectification module and the difference in voltage of described first super capacitor module are in the second preset range, controls the conducting of described on-off circuit so that the supply line between AC/DC rectification module and the first super capacitor module turns on.
Step 303: described AC/DC rectification module is described first super capacitor module charging by described supply line.
In the first super capacitor module charging process, state during the output voltage difference of the voltage of the first super capacitor module and AC/DC rectification module more than 1V-2V calls the charging initial stage, and state during the output voltage difference of the voltage of the first super capacitor module and AC/DC rectification module less than 1V-2V (the second preset range) calls the charging later stage. At the charging initial stage, AC/DC rectification module is the first super capacitor module charging by two-way DC/DC conversion module, when the voltage of the first super capacitor module and the output voltage difference of AC/DC rectification module are less than 1V-2V, conducting on-off circuit, it is directly that the first super capacitor module is powered that AC/DC rectification module will pass through on-off circuit. Owing to isolating transformer is normal operation mostly in electrical network, so be typically in the charging later stage in electrical network on-off circuit is set to conducting state always, it is joined directly together realizing the first super capacitor module and AC/DC rectification module. It should be noted that in the first super capacitor module charging process, in energy storage control system, the conversion of each electrical part duty is all automatically obtained by programme-control.
Wherein, in embodiments of the present invention, the second super capacitor module and the first super capacitor module have identical character, each through storing electricity in charging process, release delivery in discharge process, think that DC load provides power supply. Wherein, the second super capacitor can be charged by following two mode: one, when isolating transformer normal power supply, AC/DC rectification module is when powering for DC load, it is that the first super capacitor module is powered simultaneously, is also that the second super capacitor module is powered, energy storage electric energy.
Its two, when stopping power supply at isolating transformer and disconnect in described supply line, the low-voltage in the first super capacitor module changes module by two-way DC/DC and rises to as high voltage, powers for DC load. Owing to the second super capacitor module connects in DC load, so being again that the second super capacitor module is powered while the first super capacitor module provides power supply for DC load, improve the utilization rate of electric energy in the first super capacitor module.
In embodiments of the present invention, for the ease of understanding clearly when charging initial stage, charging later stage, power supply early stage and power supply later stage state, the duty of on-off circuit and two-way DC/DC conversion module has been carried out simple introduction, has referred to table 1.
Table 1 energy storage controls process
Finally, it can further be stated that, in this article, the relational terms of such as first and second or the like is used merely to separate an entity or operation with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially. And, term " includes ", " comprising " or its any other variant are intended to comprising of nonexcludability, so that include the process of a series of key element, method, article or equipment not only include those key elements, but also include other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or equipment. When there is no more restriction, statement " including ... " key element limited, it is not excluded that there is also other identical element in including the process of described key element, method, article or equipment.
Described above to the disclosed embodiments, makes those skilled in the art be capable of or uses the present invention. The multiple amendment of these embodiments be will be apparent from for a person skilled in the art, and generic principles defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments. Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. an energy storage control system, including AD/DC rectification module and isolating transformer, described isolating transformer is connected with described AC/DC rectification module, and the first outfan of described AC/DC rectification module and the second outfan are power output end, it is characterized in that, also include:
First super capacitor module, on-off circuit and two-way DC/DC conversion module, wherein:
First end of described on-off circuit is connected with the first input end of described two-way DC/DC conversion module, second end of described on-off circuit is connected with the first outfan of described two-way DC/DC conversion module, and described first end of on-off circuit is connected with the first end of the junction point of the first input end of described two-way DC/DC conversion module with described first super capacitor module, the second end of described on-off circuit is connected with the first outfan of described AC/DC rectification module with the junction point of the first outfan of described two-way DC/DC conversion module;
Second end of described first super capacitor module is connected with the second input of described two-way DC/DC conversion module, and the second outfan of described two-way DC/DC conversion module is connected with the second outfan of described AC/DC rectification module.
2. system according to claim 1, it is characterised in that described system also includes the second super capacitor module; First end of described second super capacitor module is connected with the junction point of the second end of described on-off circuit with the first outfan of described two-way DC/DC conversion module, second end of described second super capacitor module and the second outfan of described two-way DC/DC conversion module connect, and the capacity of described second super capacitor module is less than the capacity of described first super capacitor module.
3. system according to claim 2, it is characterised in that the power decision of the DC load that the capacity of described second super capacitor module is connected by described AC/DC rectification module.
4. system according to claim 1, it is characterized in that, described on-off circuit is dc switch, first end of described dc switch is connected with the first input end of described two-way DC/DC conversion module, and the second end of described dc switch is connected with the first outfan of described two-way DC/DC conversion module.
5. system according to claim 1, it is characterised in that described on-off circuit includes:
First diode, the second diode, the 3rd diode, the 4th diode and NPN type MOSFET pipe; The anode of described first diode is connected with the negative electrode of described second diode; The negative electrode of described first diode is connected with the negative electrode of described 3rd diode; The anode of described second diode is connected with the anode of described 4th diode; The drain electrode of described NPN type MOSFET pipe is connected with the junction point of the negative electrode of described first diode with the negative electrode of described 3rd diode; The junction point of the anode of the source electrode of described NPN type MOSFET pipe and described second diode and the anode of the 4th diode is connected.
6. an energy storage control method, is applied in energy storage control system as claimed in claim 1, it is characterised in that described method includes:
When isolating transformer is stopped power supply, control on-off circuit conducting so that the supply line between DC load and the first super capacitor module turns on;
First super capacitor module releases voltage supplied, and is that DC load is powered by voltage by the supply line turned on;
When the voltage of described first super capacitor module drops in the first preset range, control described on-off circuit and disconnect so that the supply line between DC load and the first super capacitor module disconnects;
When described supply line disconnects, the voltage input extremely two-way DC/DC conversion module of described first super capacitor module;
The voltage of input is amplified by described two-way DC/DC conversion module, and the voltage after amplifying is supplied to described DC load.
7. method according to claim 6, it is characterised in that described method is applied to such as energy storage control system as described in claim 2, and described method also includes:
Stopping power supply at isolating transformer and control in on-off circuit disconnection process, the second super capacitor module will continue release voltage, it is provided that to DC load;
After controlling the disconnection of described on-off circuit, by the first super capacitor module by two-way DC/DC conversion module release voltage, power for DC load.
8. method according to claim 7, it is characterised in that described method also includes:
Voltage at described first super capacitor module drops in preset range and controls in described on-off circuit disconnection process, and the voltage of release is supplied to DC load by the second super capacitor module;
State on-off circuit in control to disconnect so that supply line disconnects, the voltage of described first super capacitor module inputting to two-way DC/DC conversion module.
9. method according to claim 6, it is characterised in that described method also includes:
When isolating transformer normal power supply, control described on-off circuit and disconnect so that the supply line between AC/DC rectification module and the first super capacitor module disconnects;
Described AC/DC rectification module is described first super capacitor module charging by described two-way DC/DC conversion module;
When the output voltage of described AC/DC rectification module and the difference in voltage of described first super capacitor module are in the second preset range, control the conducting of described on-off circuit so that the supply line between AC/DC rectification module and the first super capacitor module turns on;
Described AC/DC rectification module is described first super capacitor module charging by described supply line.
10. method according to claim 7, it is characterised in that described method also includes:
When isolating transformer normal power supply, described AC/DC rectification module is the second super capacitor module charging;
When stopping power supply at isolating transformer and disconnect in described supply line, the voltage input extremely two-way DC/DC conversion module of described first super capacitor module; The voltage of input is amplified by described two-way DC/DC conversion module, and the voltage after amplifying is supplied to described DC load, is charged for described second super capacitor module simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777984.4A CN105656065B (en) | 2014-12-15 | 2014-12-15 | A kind of energy storage control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777984.4A CN105656065B (en) | 2014-12-15 | 2014-12-15 | A kind of energy storage control system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105656065A true CN105656065A (en) | 2016-06-08 |
| CN105656065B CN105656065B (en) | 2018-05-18 |
Family
ID=56480850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410777984.4A Expired - Fee Related CN105656065B (en) | 2014-12-15 | 2014-12-15 | A kind of energy storage control system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105656065B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843807A (en) * | 2016-09-20 | 2018-03-27 | 丰郅(上海)新能源科技有限公司 | A kind of moment in Voltage Drop can turn off the monitoring system of power network in time |
| CN107910931A (en) * | 2017-12-15 | 2018-04-13 | 深圳新恒业电气有限公司 | A kind of control method of single group and multigroup energy storage converting means |
| CN107993540A (en) * | 2018-01-15 | 2018-05-04 | 国网北京市电力公司 | A kind of microcomputer protective relay teaching experiment system |
| CN108321917A (en) * | 2018-05-09 | 2018-07-24 | 江苏爱可青实业有限公司 | A kind of device improving super capacitor module discharge energy-storage utilization rate |
| CN110707735A (en) * | 2019-11-21 | 2020-01-17 | 广州供电局有限公司 | Super capacitor power module and feeder terminal |
| CN110768362A (en) * | 2018-07-25 | 2020-02-07 | 南京市嘉隆电气科技有限公司 | Backup power supply control system based on super capacitor |
| CN110832765A (en) * | 2017-04-25 | 2020-02-21 | 东芝三菱电机产业系统株式会社 | power supply unit |
| CN110932572A (en) * | 2019-11-08 | 2020-03-27 | 国网冀北电力有限公司张家口供电公司 | A DC power supply circuit and system |
| CN112039313A (en) * | 2020-07-28 | 2020-12-04 | 漳州科华技术有限责任公司 | Auxiliary power supply device, control method of auxiliary power supply device, and converter |
| CN112532117A (en) * | 2020-12-22 | 2021-03-19 | 深圳市越疆科技有限公司 | Motor driving circuit, device and method, mechanical arm and robot |
| CN112583102A (en) * | 2019-09-27 | 2021-03-30 | 恒为科技（上海）股份有限公司 | Uninterruptible power supply and charge-discharge control method |
| CN115912932A (en) * | 2022-11-22 | 2023-04-04 | 合肥钧联汽车电子有限公司 | Reverse pre-charging soft start control method for vehicle-mounted bidirectional DC converter |
| CN121171794A (en) * | 2025-11-20 | 2025-12-19 | 广东电网有限责任公司云浮供电局 | Hybrid super capacitor module for power system and management method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1845417A (en) * | 2006-04-10 | 2006-10-11 | 中国科学院电工研究所 | A hybrid energy storage device for elevators and its control method |
| CN203734364U (en) * | 2014-02-14 | 2014-07-23 | 阳光电源（上海）有限公司 | Light storage mixing system |
| CN203800697U (en) * | 2014-04-25 | 2014-08-27 | 上海电气集团股份有限公司 | Integrated structure of servo driver and stand-by power supply for variable-pitch control system |
| CN204333971U (en) * | 2014-12-15 | 2015-05-13 | 深圳太研能源科技有限公司 | A kind of energy storage control system |
-
2014
- 2014-12-15 CN CN201410777984.4A patent/CN105656065B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1845417A (en) * | 2006-04-10 | 2006-10-11 | 中国科学院电工研究所 | A hybrid energy storage device for elevators and its control method |
| CN203734364U (en) * | 2014-02-14 | 2014-07-23 | 阳光电源（上海）有限公司 | Light storage mixing system |
| CN203800697U (en) * | 2014-04-25 | 2014-08-27 | 上海电气集团股份有限公司 | Integrated structure of servo driver and stand-by power supply for variable-pitch control system |
| CN204333971U (en) * | 2014-12-15 | 2015-05-13 | 深圳太研能源科技有限公司 | A kind of energy storage control system |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843807A (en) * | 2016-09-20 | 2018-03-27 | 丰郅(上海)新能源科技有限公司 | A kind of moment in Voltage Drop can turn off the monitoring system of power network in time |
| CN107843807B (en) * | 2016-09-20 | 2021-07-30 | 丰郅(上海)新能源科技有限公司 | Monitoring system capable of timely turning off power grid at voltage drop moment |
| CN110832765B (en) * | 2017-04-25 | 2021-04-20 | 东芝三菱电机产业系统株式会社 | Power supply device |
| CN110832765A (en) * | 2017-04-25 | 2020-02-21 | 东芝三菱电机产业系统株式会社 | power supply unit |
| CN107910931A (en) * | 2017-12-15 | 2018-04-13 | 深圳新恒业电气有限公司 | A kind of control method of single group and multigroup energy storage converting means |
| CN107993540A (en) * | 2018-01-15 | 2018-05-04 | 国网北京市电力公司 | A kind of microcomputer protective relay teaching experiment system |
| CN108321917A (en) * | 2018-05-09 | 2018-07-24 | 江苏爱可青实业有限公司 | A kind of device improving super capacitor module discharge energy-storage utilization rate |
| CN110768362A (en) * | 2018-07-25 | 2020-02-07 | 南京市嘉隆电气科技有限公司 | Backup power supply control system based on super capacitor |
| CN112583102A (en) * | 2019-09-27 | 2021-03-30 | 恒为科技（上海）股份有限公司 | Uninterruptible power supply and charge-discharge control method |
| CN110932572A (en) * | 2019-11-08 | 2020-03-27 | 国网冀北电力有限公司张家口供电公司 | A DC power supply circuit and system |
| CN110932572B (en) * | 2019-11-08 | 2023-04-07 | 国网冀北电力有限公司张家口供电公司 | Direct current power supply circuit and system |
| CN110707735A (en) * | 2019-11-21 | 2020-01-17 | 广州供电局有限公司 | Super capacitor power module and feeder terminal |
| CN112039313B (en) * | 2020-07-28 | 2022-02-18 | 漳州科华技术有限责任公司 | Auxiliary power supply device, control method of auxiliary power supply device, and converter |
| CN112039313A (en) * | 2020-07-28 | 2020-12-04 | 漳州科华技术有限责任公司 | Auxiliary power supply device, control method of auxiliary power supply device, and converter |
| CN112532117A (en) * | 2020-12-22 | 2021-03-19 | 深圳市越疆科技有限公司 | Motor driving circuit, device and method, mechanical arm and robot |
| CN115912932A (en) * | 2022-11-22 | 2023-04-04 | 合肥钧联汽车电子有限公司 | Reverse pre-charging soft start control method for vehicle-mounted bidirectional DC converter |
| CN115912932B (en) * | 2022-11-22 | 2024-08-16 | 合肥钧联汽车电子有限公司 | Reverse pre-charging soft start control method for vehicle-mounted bidirectional DC-DC converter |
| CN121171794A (en) * | 2025-11-20 | 2025-12-19 | 广东电网有限责任公司云浮供电局 | Hybrid super capacitor module for power system and management method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105656065B (en) | 2018-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105656065A (en) | Energy storage control system and method thereof | |
| CN110323771A (en) | A kind of on-line blackbody cavity circuit | |
| US6369463B1 (en) | Apparatus and method for supplying alternative energy and back-up emergency power to electrical devices | |
| CN104917198B (en) | A kind of energy-storage system control device and method | |
| US9570939B2 (en) | Double-port energy storage system and control method thereof | |
| CN110581596B (en) | Multi-source energy storage direct current power supply device and UPS equipment | |
| CN111884197A (en) | Intelligent direct-current power distribution system | |
| CN104748288A (en) | Soft start charging circuit and control method thereof | |
| CN103441568A (en) | Uninterruptible automatic-switchover control system for photovoltaic power supply and electric supply | |
| CN110100370A (en) | The switching construction that switches between two input terminals, equipment, system and method | |
| CN106953377A (en) | Suitable for the mobile energy storage for power supply system control method of multiple access scene | |
| KR101787154B1 (en) | Dc energy store systems and methods of operating the same | |
| CN101728945A (en) | Bidirectional DC/DC voltage conversion device with neutral point | |
| CN204333971U (en) | A kind of energy storage control system | |
| CN105634108B (en) | Off-line uninterrupted power supply | |
| CN104659903A (en) | Automatic switching device for double-acting power supply and control method | |
| CN203671834U (en) | Soft start charging circuit | |
| CN112968475A (en) | Micro-grid system and method combining vehicle-mounted gas turbine generator set and energy storage | |
| CN103715750B (en) | Power-off circuit, direct-current combination power supply system and power-off control method | |
| CN106026382A (en) | Standby emergency power supply | |
| CN214626385U (en) | Micro-grid device combining vehicle-mounted gas turbine generator set and energy storage | |
| CN205901409U (en) | UPS and UPS's redundant formula supply circuit of auxiliary electrical power source stops control system with opening | |
| CN105656079A (en) | Switch bypass circuit, converter and direct current network deployment converter system | |
| CN104467157B (en) | Multi-voltage-class standby direct-current operating power source | |
| CN111064275B (en) | An intrinsically safe uninterruptible power supply topology and implementation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |