JPH11313441A - Home power DSM system - Google Patents

Abstract

(57) [Summary] [Problem] To connect each equipment in a home to a DSM control device via a network and control each equipment in accordance with a DSM command from the outside, thereby reducing power consumption without significantly impairing comfort. To provide a domestic power DSM system for suppressing power consumption. A power DSM central control device (1) is connected to a home network (2).
Is air conditioner 3, refrigerator 4, clothes dryer 5, lighting equipment 6
And other equipment are connected to transmit and receive control data. The distribution board 7 receives AC power from the power system, detects the current value of the power receiving unit with a current sensor 7a attached to the distribution board 7, and outputs the current value or the integrated power amount to the home network 2. The power DSM central control device 1 detects the power via this. The power DSM central control device 1 has a DSM command for instructing power use restriction from the DSM command office 8 via the public line 9, or a DS indicating the electricity rate for each time zone.
M data is sent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power DSM (D
emand Side Management).

[0002]

2. Description of the Related Art In recent years, there has been an increasing need to reduce power consumption for the purpose of improving power plant operation efficiency and reducing greenhouse gas emissions. For this reason, in the industry, power consumption has leveled off over the last decade in an effort to reduce energy consumption. On the other hand, in general households, the power consumption is steadily increasing, and its suppression is an important issue for suppressing the entire power consumption.

[0003]

However, the conventional power DSM system for home use is a DSM system.
The command directly changes the operation state of the equipment in the home, and the control cannot be performed in consideration of the situation in the home at that time. For this reason, comfort may be greatly impaired, and as a result, a large control amount cannot be changed, and power consumption reduction is not thorough.

According to the present invention, each equipment in a home is connected to a DSM controller via a network, and the DSM controller centrally controls each equipment in response to a DSM command from the outside. Can be controlled accordingly.
It is an object of the present invention to provide a domestic power DSM system that suppresses power consumption without significantly impairing comfort.

[0005]

In order to solve the above-mentioned problems, a home power DSM system according to the present invention comprises a home network, equipment connected to the home network, a home network and a home network. A domestic power DSM system, which is connected to both information communication networks and includes a DSM control device that receives a DSM command for instructing power use restriction or an electric charge for each time zone as DSM data from the external information communication network. In the above, the DSM
The control device performs optimal control of each facility device connected to the home network in accordance with the DSM command or the electricity rate set in each time zone.

[0006] With the above configuration, the equipment is centrally controlled, and at the same time, control is performed in consideration of the type, quantity, operation status, user's intention, and the like of the equipment in each home, so that comfort is not significantly impaired. Power consumption.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a configuration diagram of a home power DSM system according to the present invention. In a home, the power DSM central control device 1 is connected to a home network 2.
The home network 2 is configured by a transmission medium such as a twisted pair line, a power line, an optical radio, an RF (Radio Frequency) radio, and the like, and includes an air conditioner 3, a refrigerator 4, a clothes dryer 5, a lighting device 6, and the like (for example, , Hair dryers, microwave ovens, and hot carpets) are connected to send and receive control data. The distribution board 7 receives AC power from the power system and monitors whether or not the power exceeds a predetermined allowable power set in advance. The current value of the power receiving unit is detected by a (power receiving) current sensor 7 a attached to the distribution board 7, and the current value or the electric energy is transmitted to the home network 2.
, The power DSM central control device 1 detects it. In addition, the power DSM central control device 1 receives, via the public line 9, a DSM command for instructing power use restriction or DSM data indicating an electricity rate for each time zone from the DSM command office 8 managed by the power company. Sent.

First, in the first embodiment, a DSM command from the DSM command office 8 is given as an upper limit of current consumption for each time zone. In each home, when using electricity,
Although the upper limit contract current value is set and the current consumption cannot exceed the contract current value (although momentary over is allowed), the upper limit current value is further set for a certain period of time. Lower only inside. For this reason, when the power exceeds the upper limit value according to the DSM command, the power DSM central control device 1 immediately performs control to reduce or stop the operation capability of each facility device. At this time, the order in which the capabilities are changed is determined according to the priority order preset in the power DSM central control device 1.

FIG. 2 shows this state. If the upper limit value is exceeded by the operation of the clothes dryer, the performance of the device (air conditioner) is reduced according to a preset priority (in this case, the air conditioner is the first). When the clothes dryer stops and there is enough time, the capacity of the equipment (air conditioner) is restored. Alternatively, by changing the ability change amount in advance, the ability is changed without impairing the comfort.

The power DSM centralized control device 1 is designed to operate the equipment if there is a possibility that a certain equipment may exceed the upper limit of the current according to the DSM command by starting operation or increasing the capacity. Temporarily prohibit starting or changing abilities. Alternatively, by stopping other low-priority equipment or lowering the capacity, a margin is provided for the current consumption, and thereafter, the operation of the corresponding equipment is started, or the capacity is increased, and the DSM command is applied. Control so as not to exceed the total current consumption value.

While the operation start and the capacity change are prohibited in this way, the power DSM central control device 1 or the corresponding equipment displays the fact. In any case, if there is a margin in the set current consumption, the operation is restored in the reverse order of the priority order.

Further, a time zone in which the maintenance of comfort is prioritized in each facility device is notified to the power DSM central control device 1 as a capacity change prohibition time zone. Thus, when priority is given to maintaining comfort such as during a visitor, comfort can be maintained without temporarily accepting the DSM command.

Next, in the second embodiment, a DSM command from the DSM command center 8 is given as an upper limit of power consumption (Wh) for each time zone. The power DSM central control device 1 stores the power consumption pattern of each facility device in a memory, predicts the power consumption within a preset time from the current power consumption (point a in FIG. 3), and issues a DSM command. If it is determined that the upper limit value is likely to be exceeded (B> A in FIG. 3), the operation of each facility device is stopped or the capability is reduced according to the set priority order, and the DSM is reduced.
Do not exceed the power consumption upper limit value specified by the command. At this time, if the expected power consumption is likely to have a margin (B <A in FIG. 3), the operation of each equipment is returned in the reverse order of the priority.

FIG. 3 shows the relationship between the power consumption and the upper limit according to the DSM command. The power consumption is predicted at, for example, the 1/3 time and the 2/3 time in the time for calculating the power consumption.
At this time, the prediction is made based on the past power consumption pattern within the calculated time.

Here, if the power consumption is expected to exceed the upper limit according to the DSM command in the current power consumption pattern (B> A in FIG. 3), the fact is notified. Alternatively, a capacity control pattern indicating which operation state of each equipment and how to change the operation state of each equipment from the current operation state of each equipment does not exceed the upper limit value is presented.

If the DSM command cannot be complied with from the situation at that time, the degree of compliance with the preset DSM command can be determined from the power DSM central control device 1 or by a manual switch operation. Send to DSM Command 8 For example, data indicating that 50% of the upper limit value specified by the DSM command is satisfied and 80% is satisfied is transmitted, and power control of each equipment is performed step by step.

Next, in the third embodiment, a power rate for each time zone is sent from the DSM command office 8 as DSM data. For example, from 9:00 to 12:00, 18
Yen / kWh, 40 yen / kWh from 12:00 to 14:00
Is sent. In this case, the power DSM
The centralized control device 1 controls each facility device so that the total amount of the electric power fee is minimized.

For example, the power DSM central control device 1 lowers the upper limit value of the current consumption in a time zone when the power rate is high, and when the upper limit value is exceeded, controls the operation of each equipment according to the set priority. Stop or reduce ability. Then, if there is a margin in the current consumption, the operation or capability is restored in the reverse order of the priority.

Alternatively, the power DSM central control device 1 sets the power consumption to be low during a time period when the power rate is high, and to set the power consumption amount to be high during a time period when the power fee is low. Control to work.

Alternatively, an upper limit of the electricity usage rate for one month is set in advance in the memory of the power DSM central control device 1, and the operation of each equipment is controlled so as to fall within the range. In this case, the power rate is integrated at regular intervals, and when this value is expected to exceed the set value, the capacity of each facility device is limited so as not to exceed the set value. Also,
If it is expected to exceed, we will notify that fact. Alternatively, a capability control pattern of each equipment device that indicates which equipment device and how to control it so as not to exceed the set value is presented.

If the operation time can be changed, such as a clothes dryer or a dishwasher, when the operation time is set to be high, the electricity rate is low, such as at night. Change the settings to operate during the time zone.

[0023]

As described above, in the domestic power DSM system of the present invention, the DSM control device optimally implements the DSM command according to the status of each equipment connected to the home network. Control the equipment, or according to the electricity rate set in each time zone, to change the setting state of each equipment connected to the home network, it becomes possible to centrally control each equipment, furthermore By performing control in consideration of the type, quantity, operation status, user's intention, and the like of the equipment in each home, it is possible to suppress power consumption without significantly impairing comfort.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a domestic power DSM system of the present invention.

FIG. 2 is an explanatory diagram of a device capability change by a DSM command.

FIG. 3 is a diagram showing a relationship between power consumption and an upper limit according to a DSM command.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Power DSM central control device, 2 ... Home network, 3 ... Air conditioner, 4 ... Refrigerator, 5 ... Clothes dryer, 6 ...
Lighting equipment, 7: distribution board, 7a: current sensor, 8: DSM
Command post, 9 ... Public line.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masanori Niwa 3-3-9, Shimbashi, Minato-ku, Tokyo Inside Toshiba AV EE Co., Ltd.

Claims (16)

[Claims] 1. An in-home network, equipment connected to the in-home network, and both a home network and an out-of-home information communication network, and instructing the use of power from the out-of-home information communication network. Power DS comprising a DSM controller receiving a DSM command
In the M system, when the DSM control device receives the DSM command, the DSM control device controls each of the equipment devices so as to optimally realize the DSM command in accordance with the status of each of the equipment devices connected to the home network. Domestic power DS characterized by performing
M system. 2. If the total household current consumption exceeds the DSM command value with respect to the DSM command specifying the upper limit value of the current used, the DSM control device sets the total current consumption to be equal to or less than the DSM command value. The domestic power DSM system according to claim 1, wherein the capacity of each of the equipments is changed as described above. 3. When the total household current consumption does not exceed the DSM instruction value with respect to the DSM command designating the upper limit value of the used current, the total household current consumption increases when the capacity of certain equipment is changed. If the DSM control value is expected to exceed the DSM command value, the DSM control device prohibits the change of the capability of the relevant equipment, or the total current consumption does not exceed the DSM command value even if the capability of the relevant equipment is changed. 2. The domestic power DSM system according to claim 1, wherein the capacity of each of the other equipment is changed, and then the capacity of the corresponding equipment is changed. 4. The domestic power DSM system according to claim 2, wherein each of the equipments notifies the DSM control device of a time zone in which a capacity change is prohibited. 5. When the total household power consumption is expected to exceed the DSM command value with respect to the DSM command designating the upper limit value of the power consumption, the DSM control device sets the total power consumption to DSM command. The domestic power DSM system according to claim 1, wherein the capability of each facility device is controlled so as not to exceed a command value. 6. The DSM control device includes storage means for storing a power consumption pattern of each facility device, and the DSM control device responds to a DSM command designating an upper limit value of power consumption by each facility device. The domestic power DSM system according to claim 5, wherein the capacity control of each facility device is performed in accordance with the power consumption pattern. 7. The DSM control device, if the current power consumption pattern does not satisfy the DSM command with respect to a DSM command designating an upper limit value of the amount of power consumption, notifies the DSM controller. 7. The domestic power DSM system according to 6. 8. When the current power consumption pattern does not satisfy the DSM command with respect to the DSM command specifying the upper limit value of the amount of power used, the DSM control device sets each equipment for satisfying the DSM command. The domestic power DSM system according to claim 6 or 7, wherein the power control pattern indicates a capability control pattern of the device. 9. The DSM control device controls each of the equipment devices in a stepwise manner according to the operation status of each of the equipment devices or a degree according to a DSM command preset in the DSM control device in accordance with the DSM command. The domestic power DSM system according to any one of claims 1 to 8, wherein: 10. A home network, equipment connected to the home network, and connected to both the home network and the information communication network outside the home. And a DSM control device that receives the DSM data as DSM data, wherein the DSM control device is connected to the home network according to an electricity rate set in each time zone. A home power DSM system characterized by changing a setting state of the home electric power. 11. The home according to claim 10, wherein the DSM control device changes an upper limit value of a current consumed in each time according to an electricity rate set in each time zone. Power DSM system. 12. The DSM control device according to claim 10, wherein the DSM control device changes an upper limit value of a total amount of electric power consumed in each time according to an electricity rate set in each time zone. Home power DSM system. 13. The DSM control device includes an electricity rate storage unit that stores an electricity rate upper limit in a unit time, and controls each of the facility devices so as not to exceed the electricity rate upper limit. The domestic power DSM system according to claim 10, characterized in that: 14. The DSM control device comprises an electricity rate storage means for storing an electricity rate upper limit value per unit time, and issues a notification when the electricity rate is expected to exceed the electricity rate upper limit value. The domestic power DSM system according to claim 10, wherein: 15. The DSM control device further comprises an electricity rate storage means for storing an electricity rate upper limit in a unit time, and when it is expected that the electricity rate upper limit is exceeded, the electricity rate upper limit is set. 11. The domestic power DSM system according to claim 10, wherein a capacity control pattern of each equipment to prevent the power from being exceeded is shown. 16. The apparatus according to claim 10, wherein the DSM control device changes the setting of the equipment which is set to operate during a time when the electricity rate is high so as to operate during a time when the electricity rate is low. Domestic power DSM system.