JP7032243B2 - Power demand management equipment and methods - Google Patents

Description

The present invention relates to a technique for managing a consumer's electric power demand, and more particularly to a power demand management device and a method for selecting a consumer's equipment to be subject to power suppression control.

In order to avoid a situation where the power supply is insufficient when the power consumption temporarily rises due to the concentration of power consumption equipment and the power supply becomes tight. , The main body of the power supply side has proposed to make a demand control request (power consumption adjustment request) for adjusting the power consumption (see Patent Document 1). Hereinafter, as disclosed in Patent Document 1, changing the power consumption pattern so that the consumer side suppresses the use of power in response to a request from the power supply side is defined as a demand response.

In such a demand response, by stopping the predetermined equipment of the building (customer), the amount of power reduction (negawatt) corresponding to that amount can be counted as the result of power saving carried out by the customer. However, there were cases where the amount of negawatts requested by the electric power company could not be achieved if the equipment on the consumer side had already stopped or failed at the stage of starting power suppression.

4 (A) and 4 (B) are diagrams for explaining the problems of the conventional demand response. In the example of FIG. 4A, the amount of power reduction of the building 100 at the time of power suppression applied to the electric power company is, for example, 200 kW, and the equipment 101-A to 101-that stops or suppresses the operation at the time of power suppression. An example with five E's is shown. 102 in FIG. 4A is a building and energy management system (BEMS) that controls equipment 101-A to 101-E, and 103 is an aggregation center that adjusts power demand between an electric power company and a consumer. It is a gateway that communicates with 104.

On the other hand, FIG. 4B shows an example in which facilities 101-C and 101-E of the five facilities 101-A to 101-E were already stopped at the time of actual power suppression. Assuming that the power consumption of each of the facilities 101-A to 101-E is 40 kW, the facilities 101-A, 101-B, and 101-D are stopped because the facilities 101-C and 101-E have already stopped. As a result, the amount of power reduction is 120 kW. Therefore, the power reduction amount of 200 kW applied to the electric power company cannot be achieved.

International release WO2016 / 186081

The present invention has been made to solve the above problems, and to provide a power demand management device and a method capable of selecting equipment subject to power suppression control so as to satisfy a target power reduction amount. The purpose.

The power demand management device of the present invention includes an equipment data receiving unit configured to receive data on the operating status of the equipment of a consumer who is the target of a request for power suppression from a management system on the consumer side, and the consumer. The equipment group storage unit configured to store in advance the information of the equipment determined as the standard power suppression control group and the information of the equipment determined as the power suppression reserve group among the equipment of the above, and the standard power. Executes power suppression control with a consumer information storage unit configured to store in advance the total amount of power reduction when power suppression control is applied to the suppression control group as the target power reduction amount of the consumer. At that time, the reduction amount achievement determination unit configured to determine whether or not the target power reduction amount can be achieved by the standard power suppression control group based on the operation status data, and the consumer. Among the facilities of the above, the control target determination unit configured to select the equipment subject to the power suppression control and the equipment determined by the control target determination unit are used by the consumer to perform the power suppression control. The control target determination unit is provided with a power suppression request unit configured to request the control, and when it is determined that the target power reduction amount can be achieved by the standard power suppression control group, the standard If all the equipment of the power suppression control group of the above is selected as the target of the power suppression control and it is determined that the target power reduction amount cannot be achieved, all the equipment of the standard power suppression control group during normal operation is performed. The power suppression control is performed so that the power reduction amount due to the implementation of the power suppression control is closest to the target power reduction amount by combining the equipment and one or more facilities during normal operation of the power suppression spare group. It is characterized by selecting an object.

Further, in one configuration example of the power demand management device of the present invention, the reduction amount achievement determination unit determines the target power reduction amount when all the equipment of the standard power suppression control group is in normal operation. If it is determined that the standard power suppression control group is achievable and at least one of the facilities of the standard power suppression control group is stopped or out of order, the target power reduction amount is achieved by the standard power suppression control group. It is characterized by determining that it is impossible.
Further, in one configuration example of the power demand management device of the present invention, the equipment group storage unit implements power suppression control as information on the equipment of the standard power suppression control group and information on the equipment of the power suppression spare group. At least the information on the power reduction amount of each equipment is stored, and the control target determination unit stores the equipment group when it is determined that the target power reduction amount cannot be achieved by the standard power suppression control group. It is characterized in that the target of the power suppression control is selected based on the information stored in the unit.
Further, one configuration example of the power demand management device of the present invention is a power suppression control determination unit configured to determine the content of the power suppression control applied to the equipment selected as the target of the power suppression control for each equipment. Further, the power suppression request unit requests the consumer to perform the power suppression control determined by the power suppression control determination unit in the equipment determined by the control target determination unit. It is a feature.
Further, in one configuration example of the power demand management device of the present invention, the equipment group storage unit is applied to each equipment as information on the equipment of the standard power suppression control group and information on the equipment of the power suppression reserve group. At least the information that specifies the content of the power suppression control is stored, and the power suppression control determination unit applies the power suppression control to the equipment subject to the power suppression control according to the information stored in the equipment group storage unit. It is characterized by determining the contents of.

Further, the electric power demand management method of the present invention includes a first step of acquiring data on the operating status of the equipment of a consumer who is the target of the request for electric power suppression when executing the electric power suppression control, and the above-mentioned consumer's electric power demand management method. The demand is the sum of the power reduction amount when the power suppression control is applied to the standard power suppression control group and the equipment group storage unit that stores the information of the equipment determined as the standard power suppression control group among the equipment. With reference to the consumer information storage unit that stores the target power reduction amount of the house and the operation status data, it is determined whether or not the target power reduction amount can be achieved by the standard power suppression control group. The demand so that the power suppression control is carried out in the second step, the third step of selecting the equipment subject to the power suppression control from the equipment of the consumer, and the equipment determined in the third step. The third step includes the fourth step of requesting the house, and the third step is the standard power suppression if it is determined that the target power reduction amount can be achieved by the standard power suppression control group. If all the equipment in the control group is selected as the target of power suppression control and it is determined that the target power reduction amount cannot be achieved, in addition to the information on the equipment determined as the standard power suppression control group. Refer to the equipment group storage unit that stores information of the equipment determined as the power suppression reserve group in advance, and all the equipment in the normal operation of the standard power suppression control group and the normal operation of the power suppression reserve group. It is characterized by including a step of selecting a target of power suppression control so that the amount of power reduction due to the implementation of power suppression control in combination with one or more of the facilities in the above is closest to the target power reduction amount. It is something to do.

According to the present invention, even if the equipment registered in the equipment group storage unit as a standard power suppression control group has already stopped or failed before the start of the power suppression control, the target power as much as possible. It is possible to perform power suppression control so as to satisfy the reduction amount.

FIG. 1 is a block diagram showing a configuration of a demand response system according to an embodiment of the present invention. FIG. 2 is a flowchart illustrating the operation of the demand response system according to the embodiment of the present invention. FIG. 3 is a block diagram showing a configuration example of a computer that realizes the power demand management device of the demand response system according to the embodiment of the present invention. FIG. 4 is a diagram illustrating a problem of conventional demand response.

Hereinafter, examples of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a demand response system according to an embodiment of the present invention. The demand response system consists of a building 1 which is a facility of a consumer who is the target of a request for power suppression, and an aggregation center 2 operated by an aggregator operator who adjusts the power demand between the power company and the customer. To.

The building 1 includes a large number of facilities 10-A to 10-I such as air conditioners and lighting, a building management system (BEMS) 11 that controls the facilities 10-A to 10-I, and an aggregation center via a network. A gateway 12 which is a communication device that communicates with 2 is provided.

The aggregation center 2 is provided with a power demand management device 20. The electric power demand management device 20 includes an equipment data receiving unit 21, an equipment data storage unit 22, an equipment group storage unit 23, a consumer information storage unit 24, a request input unit 25, and a reduction amount achievement determination unit 26. A control target determination unit 27, a power suppression control determination unit 28, and a power suppression request unit 29 are provided.

In the equipment group storage unit 23 of the power demand management device 20, the identification information of the equipments 10-A to 10-E previously applied by the customer as the standard power suppression control group of the building 1 (customer) and their identification information are provided. Control information that specifies the content of the power suppression control applied to each equipment 10-A to 10-E, and the amount of power reduction of each equipment 10-A to 10-E by implementing this power suppression control ER-A to ER. -E information, identification information of equipment 10-F to 10-I previously applied by the consumer as a power suppression preliminary group instead of the power suppression control group, and each of these equipment 10-F to 10-I. The control information that specifies the content of the power suppression control applied to is stored in advance, and the information of the power reduction amounts ER-F to ER-I of each equipment 10-F to 10-I due to the implementation of this power suppression control is stored in advance. ing.

In the consumer information storage unit 24 of the power demand management device 20, information on the target power reduction amount ERsp of the building 1 (customer) is stored in advance. The target power reduction amount ERsp is equal to the total power reduction amount ER of each equipment 10-A to 10-E of the standard power suppression control group stored in the equipment group storage unit 23. Therefore, the sum of the power reduction amounts ER-A to ER-E of the equipment 10-A to 10-E and the power reduction amount ER-F to ER-I of the equipment 10-F to 10-I is the target power reduction amount. It will be set to exceed ERsp.

The target power reduction amount ERsp, the power reduction amount ER of each facility 10-A to 10-I, and the content of the power suppression control applied to each facility 10-A to 10-I are previously determined by the consumer. It is determined according to the application and registered in the equipment group storage unit 23 and the consumer information storage unit 24.

The gateway 12 provided in the building 1 periodically acquires the operation status data of the facilities 10-A to 10-I from the building management system 11, and manages the acquired data for the power demand of the aggregation center 2 via the network. It is transmitted to the device 20. The operating status data includes, for example, data indicating the start and stop of equipment 10-A to 10-I, data indicating normality / abnormality (failure) of equipment 10-A to 10-I, and equipment 10-A to 10-I. There is data showing the power consumption of. The equipment data receiving unit 21 of the power demand management device 20 receives data periodically transmitted from the gateway 12 and stores it in the equipment data storage unit 22.

FIG. 2 is a flowchart illustrating the operation of the demand response system of this embodiment. The request input unit 25 of the electric power demand management device 20 receives a request for electric power suppression from an electric power company via a network.
When the request input unit 25 receives the power suppression request from the electric power company (YES in step S1 of FIG. 2), the electric power demand management device 20 requests the building 1 (customer) for the electric power suppression control as follows. To decide.

First, the power reduction amount achievement determination unit 26 of the power demand management device 20 determines whether the target power reduction amount ERsp stored in the consumer information storage unit 24 can be achieved by the standard power suppression control group. .. Specifically, the reduction amount achievement determination unit 26 stores the latest operation status data of each equipment 10-A to 10-E stored as a standard power suppression control group in the equipment group storage unit 23. Obtained from unit 22 (step S2 in FIG. 2). Then, the reduction amount achievement determination unit 26 determines that the target power reduction amount ERsp can be achieved by the standard power suppression control group if each of the facilities 10-A to 10-E is in normal operation (FIG. 2). Step S3).

When the control target determination unit 27 of the power demand management device 20 determines that the target power reduction amount ERsp can be achieved by the standard power suppression control group (YES in step S3), the equipment belongs to the standard power suppression control group. 10-A to 10-E are selected as targets for power suppression control (step S4 in FIG. 2).

The power suppression control determination unit 28 of the power demand management device 20 stores the contents of the power suppression control applied to the equipment 10-A to 10-E selected as the target of the power suppression control in the equipment group storage unit 23. It is determined based on the existing control information (step S5 in FIG. 2).

As a type of power suppression control stored in the equipment group storage unit 23, for example, there is start / stop (ON / OFF) control of equipment such as an air conditioner and lighting. In addition, as another type of power suppression control, equipment such as an air conditioner that performs set value tracking control that makes a controlled amount (for example, indoor temperature) follow a control set value (for example, indoor temperature set value) during operation. In, there is a set value control that changes the control set value by a specified width in a specified direction in which the power consumption is reduced. In the equipment group storage unit 23, control information for designating the content of such power suppression control is registered in advance for each equipment.
The power suppression control determination unit 28 may determine the content of the power suppression control to be applied to each of the equipments 10-A to 10-E according to the control information stored in the equipment group storage unit 23.

In the power suppression request unit 29 of the power demand management device 20, the control target determination unit 27 and the power suppression control determination unit 28 determine the equipment subject to the power suppression control and the content of the power suppression control applied thereto. , A control signal requesting power suppression is transmitted to the gateway 12 of the building 1 via the network (FIG. 2, step S6).

The request for power suppression from the electric power company received in step S1 includes, for example, the contents such as the power suppression start time, the power suppression duration, and the power reduction amount ERtotal. On the other hand, in the control signal transmitted from the power suppression request unit 29, the power suppression start time, the power suppression duration, the equipment designation information for designating the equipment subject to the power suppression control, and the content of the power suppression control for each equipment are specified. Control specification information to be used is included.

The building management system 11 that has received the control signal from the power demand management device 20 via the gateway 12 of the building 1 performs power suppression control according to the received control signal.
For example, the building management system 11 starts and stops with the control designation information among the equipment designated as the target of the power suppression control in the equipment designation information (equipment 10-A to 10-E in the case of the standard power suppression control group). For equipment for which control is specified, the operation is stopped when the power suppression start time is reached, and the operation is restarted after the power suppression duration elapses.

Further, among the equipment designated as the target of the power suppression control, the building management system 11 sets the control setting value at the time when the power suppression start time is reached for the equipment for which the set value control is specified in the control designation information. The width specified in the direction specified in the control specification information is changed, and the control setting value is returned to the original value after the power suppression duration has elapsed.
In this way, the power suppression control is performed so that the target power reduction amount ERsp previously agreed between the electric power company or the aggregator operator and the consumer can be achieved.

On the other hand, the reduction amount achievement determination unit 26 of the power demand management device 20 stores the latest operation status data of each equipment 10-A to 10-E stored as a standard power suppression control group in the equipment group storage unit 23. As a result of acquisition from the equipment data storage unit 22, if at least one of the equipment 10-A to 10-E is stopped or out of order, it is determined that the target power reduction amount ERsp cannot be achieved by the standard power suppression control group. (NO in step S3 of FIG. 2).

When the control target determination unit 27 of the power demand management device 20 determines that the target power reduction amount ERsp cannot be achieved by the standard power suppression control group, the control target determination unit 27 is stored in the equipment group storage unit 23 as a power suppression preliminary group. The latest operating status data of each equipment 10-F to 10-I is acquired from the equipment data storage unit 22 (step S7 in FIG. 2).

Then, the control target determination unit 27 is among all the equipments of the standard power suppression control group 10-A to 10-E during normal operation and the equipments 10-F to 10-I of the power suppression reserve group. The target of power suppression control so that the amount of power reduction by implementing power suppression control in combination with one or more facilities during normal operation is equal to or greater than the target power reduction amount ERsp and is closest to the power reduction amount ERsp. Is selected (FIG. 2, step S8).

For example, it is assumed that the facilities 10-C and 10-E belonging to the standard power suppression control group have already been stopped for some reason before the start of the power suppression control. Then, it is assumed that the power reduction amount ER-C of the equipment 10-C due to the implementation of the power suppression control is registered as 30 kW and the power reduction amount ER-E of the equipment 10-E is registered as 40 kW in the equipment group storage unit 23. If the target power reduction amount ERsp = 200 kW, the power reduction amount for 70 kW is insufficient.

On the other hand, the equipments 10-F and 10-G belonging to the power suppression reserve group are operating normally, and the power reduction amount ER-F of the equipment 10-F due to the implementation of the power suppression control is 30 kW in the equipment group storage unit 23. It is assumed that the power reduction amount ER-G of the equipment 10-G is registered as 40 kW.

Therefore, the equipment 10-A, 10-B, 10-D belonging to the standard power suppression control group and the equipment 10-F, 10-G belonging to the power suppression preliminary group should be combined and selected as the target of the power suppression control. For example, the target power reduction amount ERsp = 200 kW can be achieved. In this way, the control target determination unit 27 selects the target of the power suppression control.

The control target determination unit 27 combines all the equipments 10-A to 10-E that are in normal operation with one or more of the equipments 10-F to 10-I that are in normal operation. Even so, if the amount of power reduction due to the implementation of power suppression control does not exceed the target power reduction amount ERsp, the power reduction amount due to the implementation of power suppression control is power suppression so as to be closest to the power reduction amount ERsp. The control target may be selected.

Next, the power suppression control determination unit 28 of the power demand management device 20 is the equipment 10-A, 10-B, 10-D, 10-F, 10 selected as the target of the power suppression control, as in step S5. -The content of the power suppression control applied to G is determined according to the control information stored in the equipment group storage unit 23 (step S9 in FIG. 2).

The operation of the power suppression request unit 29 of the power demand management device 20 is as described in step S6.
Thus, in this embodiment, even if the equipment registered as the standard power suppression control group has already stopped or failed before the start of the power suppression control, the target power reduction amount ERsp is set as much as possible. It is possible to perform power suppression control so as to satisfy.

In this embodiment, a control signal requesting power suppression is transmitted to the gateway 12 of the building 1, but the present invention is not limited to this, and the power suppression request unit 29 automatically controls the power suppression. It is also possible to send a request notification mail requesting power reduction to a known administrator of a consumer who does not implement the above. In this request notification mail, the power suppression start time, the power suppression duration, the equipment designation information for specifying the equipment subject to the power suppression control, the control designation information for specifying the content of the power suppression control for each equipment, etc. are described. ing. The administrator will manually implement the power suppression control according to the content of the received request notification email.

Further, in this embodiment, the description has been made for one building 1 (customer), but the present invention is not limited to this, and it goes without saying that a plurality of customers may be targeted. For example, if the power reduction amount ERtotal requested by the electric power company exceeds the target power reduction amount ERsp of a single consumer, the power reduction amount ERtotal cannot be satisfied by a single consumer. In this case, the power demand management device 20 may select a plurality of consumers so that the total power reduction amount is ERtotal or more. The information described above is stored for each customer in the equipment data storage unit 22, the equipment group storage unit 23, and the consumer information storage unit 24. In this way, by carrying out the process described with reference to FIG. 2 for each selected consumer, it is possible to maintain the power reduction amount ERtotal requested by the power company.

The power demand management device 20 described in this embodiment can be realized by a computer including a CPU (Central Processing Unit), a storage device, and an interface, and a program for controlling these hardware resources. An example of the configuration of this computer is shown in FIG. The computer includes a CPU 200, a storage device 201, and an interface device (hereinafter, abbreviated as I / F) 202. The hardware of the equipment data receiving unit 21, the hardware of the request input unit 25, the hardware of the power suppression request unit 29, and the like are connected to the I / F 202. In such a computer, a program for realizing the power demand management method of the present invention is stored in the storage device 201. The CPU 200 executes the process described in this embodiment according to the program stored in the storage device 201.

INDUSTRIAL APPLICABILITY The present invention can be applied to a technique of selecting equipment of a consumer who is a target of power suppression control when executing power suppression control.

1 ... Building, 2 ... Aggregation Center, 10-A-10-I ... Equipment, 11 ... Building Management System, 12 ... Gateway, 20 ... Power Demand Management Device, 21 ... Equipment Data Receiver, 22 ... Equipment Data Storage Unit, 23 ... Equipment group storage unit, 24 ... Consumer information storage unit, 25 ... Request input unit, 26 ... Reduction amount achievement determination unit, 27 ... Control target determination unit, 28 ... Power suppression control determination unit, 29 ... Power suppression request Department.

Claims (6)

An equipment data receiver configured to receive data on the operating status of the equipment of the consumer who is the target of the request for power suppression from the management system on the consumer side.
The equipment group storage unit configured to store in advance the information of the equipment determined as the standard power suppression control group and the information of the equipment determined as the power suppression reserve group among the equipment of the consumer.
A consumer information storage unit configured to store in advance the total power reduction amount when the power suppression control is applied to the standard power suppression control group as the target power reduction amount of the consumer.
When executing the power suppression control, it is configured to determine whether or not the target power reduction amount can be achieved by the standard power suppression control group based on the operation status data. Department and
Among the above-mentioned consumer equipment, a control target determination unit configured to select equipment subject to power suppression control, and a control target determination unit.
It is provided with a power suppression request unit configured to request the consumer to perform power suppression control in the equipment determined by the control target determination unit.
When the control target determination unit determines that the target power reduction amount can be achieved by the standard power suppression control group, the control target determination unit selects all the facilities of the standard power suppression control group as the target of the power suppression control. If it is determined that the target power reduction amount cannot be achieved, all the equipment in the normal operation of the standard power suppression control group and one or more of the equipment in the normal operation of the power suppression spare group. A power demand management device characterized in that the target of power suppression control is selected so that the amount of power reduction due to the implementation of power suppression control in combination with equipment is closest to the target power reduction amount. In the power demand management device according to claim 1,
When all the equipment of the standard power suppression control group is operating normally, the reduction amount achievement determination unit determines that the target power reduction amount can be achieved by the standard power suppression control group, and determines that the standard power reduction control group can achieve the target power reduction amount. When at least one of the facilities of the power suppression control group is stopped or out of order, the power demand management device is characterized in that the target power reduction amount is determined to be unattainable by the standard power suppression control group. In the power demand management device according to claim 1 or 2.
The equipment group storage unit stores at least information on the amount of power reduction of each equipment due to the implementation of power suppression control as information on the equipment of the standard power suppression control group and information on the equipment of the power suppression reserve group.
When it is determined that the target power reduction amount cannot be achieved by the standard power suppression control group, the control target determination unit determines the power suppression control based on the information stored in the equipment group storage unit. A power demand management device characterized by selecting a target. In the power demand management device according to any one of claims 1 to 3.
Further provided with a power suppression control determination unit configured to determine the content of the power suppression control applied to the equipment selected as the target of the power suppression control for each equipment.
The power suppression requesting unit requests the consumer to perform the power suppression control determined by the power suppression control determination unit in the equipment determined by the control target determination unit. Demand management device. In the power demand management device according to claim 4,
The equipment group storage unit stores at least information that specifies the content of the power suppression control applied to each equipment as the information of the equipment of the standard power suppression control group and the information of the equipment of the power suppression spare group.
The power suppression control determination unit is a power demand management device that determines the content of power suppression control applied to the equipment subject to the power suppression control according to the information stored in the equipment group storage unit. When executing the power suppression control, the first step of acquiring the data of the operation status of the equipment of the consumer who is the target of the power suppression request, and
The sum of the equipment group storage unit that stores the information of the equipment determined as the standard power suppression control group among the equipment of the consumer and the amount of power reduction when the power suppression control is applied to the standard power suppression control group. Whether or not the target power reduction amount can be achieved by the standard power suppression control group by referring to the consumer information storage unit that stores the power reduction amount as the target power reduction amount of the customer and the data of the operation status. The second step to determine
Among the above-mentioned consumer equipment, the third step of selecting the equipment subject to power suppression control, and
Including the fourth step of requesting the consumer to carry out the power suppression control in the equipment determined in the third step.
In the third step, when it is determined that the target power reduction amount can be achieved by the standard power suppression control group, all the facilities of the standard power suppression control group are selected as the target of the power suppression control. If it is determined that the target power reduction amount cannot be achieved, the information on the equipment determined as the standard power suppression control group and the information on the equipment determined as the power suppression reserve group are previously provided. With reference to the equipment group storage unit to be stored, all the equipment in the normal operation of the standard power suppression control group and one or more equipments in the normal operation of the power suppression preliminary group are combined to suppress power. A power demand management method comprising a step of selecting a target of power suppression control so that the power reduction amount due to the implementation of control is closest to the target power reduction amount.

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