JP2021087278A - Self-consignment system and self-consignment method - Google Patents

Abstract

To provide a self-consignment system and a self-consignment method capable of easily realizing an appropriate peak cut control in a mechanism of transmitting power from power generation facilities to demand facilities through a power system.SOLUTION: A self-consignment system performing self-consignment of transmitting power outputted from power generation facilities, from the power generation facilities which belong to a predetermined entity to demand facilities which belong to the predetermined entity through a power system managed by a third party entity, has a power generation side device managing the power generation facilities and a demand side device managing the demand facilities. The demand side device has a demand side control part for monitoring a calculated value of procurement power so that the calculated value of the procurement power assumed to be a value of power procured from the power system as the predetermined entity does not exceed a threshold value in an object time. The calculated value of the procurement power is a difference between an actual value of demand power supplied from the power system to the demand facilities and a calculated value of output power outputted from the power generation facilities to the power system.SELECTED DRAWING: Figure 1

Description

The present invention relates to a self-consignment system and a self-consignment method.

Conventionally, a mechanism (hereinafter referred to as a self-consignment system) is known in which power output from a power generation facility is transmitted from a power generation facility to a demand facility via a power system managed by a third-party entity.

For example, in a self-consignment system, a technique for increasing the output power output from a power generation facility to a power system so that the demand power per unit time (for example, 30 minutes) does not exceed the threshold value in a demand facility (hereinafter, peak cut). Control) has been proposed (eg, Patent Document 1). Alternatively, in a self-consignment system, a technique for accommodating electric power between two or more facilities has been proposed so as to minimize costs such as power purchase cost, consignment cost, and self-power generation cost (for example, Patent Document 2). ..

JP-A-2017-163780 Japanese Unexamined Patent Publication No. 2017-21136

As described above, the peak cut control is a control for increasing the actual value of the output power of the power generation facility so that the actual value of the demand power per unit time does not exceed the threshold value. However, since the actual value of the output power and the actual value of the demand power are values that change from moment to moment, precise control is required to perform appropriate peak cut control. On the other hand, since the power generation facility and the demand facility are geographically separated from each other, it is assumed that the power generation facility side is required to control the planned value of the output power and the actual value of the output power.

As a result of diligent examination of the above situation, the inventors have found a new finding that even if the actual value of the output power is replaced with the planned value of the output power in the peak cut control, it is unlikely that a substantial problem will occur. It was.

Therefore, the present invention has been made to solve the above-mentioned problems, and appropriately realizes appropriate peak cut control in a mechanism for transmitting electric power from a power generation facility to a demand facility via an electric power system. The purpose is to provide a self-consignment system and a self-consignment method that enable this.

The self-consignment system according to the first feature is output from the power generation facility to the demand facility belonging to the predetermined entity from the power generation facility belonging to the predetermined entity via the power system managed by the third-party entity. It is a self-consignment system that transmits electric power. The self-consignment system includes a power generation side device that manages the power generation facility and a demand side device that manages the demand facility. The demand-side device monitors the calculated value of the procured power so that the calculated value of the procured power assumed as the value of the power procured from the power system as the predetermined entity does not exceed the threshold value in the target time. It has a part. The calculated value of the procured power is the difference between the actual value of the demand power supplied from the power system to the demand facility and the planned value of the output power output from the power generation facility to the power system.

The self-consignment method according to the second feature is output from the power generation facility to the demand facility belonging to the predetermined entity from the power generation facility belonging to the predetermined entity via the power system managed by the third-party entity. It is a method of self-consignment to transmit electric power. The self-consignment method is described so that the calculated value of the procured power assumed as the value of the power procured from the power system as the predetermined entity by the demand side device that manages the demand facility does not exceed the threshold value in the target time. The step of monitoring the calculated value of the procured power is provided, and the calculated value of the procured power is output to the power system from the actual value of the demand power supplied from the power system to the demand facility and from the power generation facility. This is the difference from the planned value of the output power.

According to the present invention, there is provided a self-consignment system and a self-consignment method that enable appropriate peak cut control to be easily realized in a mechanism for transmitting electric power from a power generation facility to a demand facility via an electric power system. can do.

FIG. 1 is a diagram showing a self-consignment system 100 according to an embodiment. FIG. 2 is a diagram showing a power generation side device 500 according to the embodiment. FIG. 3 is a diagram showing a demand side device 600 according to the embodiment. FIG. 4 is a diagram for explaining allocation control according to the embodiment. FIG. 5 is a diagram for explaining allocation control according to the embodiment. FIG. 6 is a diagram showing a first message according to the embodiment. FIG. 7 is a diagram showing a second message according to the embodiment. FIG. 8 is a diagram showing a self-consignment method according to the embodiment. FIG. 9 is a diagram showing a self-consignment method according to the embodiment. FIG. 10 is a diagram showing a self-consignment system 100 according to the first modification.

Hereinafter, embodiments will be described with reference to the drawings. In the description of the drawings below, the same or similar parts are designated by the same or similar reference numerals. However, the drawings are schematic.

[Embodiment]
(Self-consignment system)
Hereinafter, the self-consignment system according to the embodiment will be described. As shown in FIG. 1, the self-consignment system 100 includes a power generation facility 200, a demand facility 300, a facility 400, a power generation side device 500, a demand side device 600, and a third party server 700.

Here, the power generation facility 200 and the demand facility 300 belong to a predetermined entity. Although not particularly limited, a predetermined entity is an entity having two or more facilities at geographically separated locations. For example, a predetermined entity is a company having a large-scale production base, a company operating a large-scale commercial facility (for example, a railway company). The power generation facility 200 and the demand facility 300 are connected by a power system 20 managed by a third party entity different from the predetermined entity. For example, the third-party entity is an entity such as an electric power company that manages a core electric power system (electric power system 20 in FIG. 1), and may be a power generation company or a power transmission and distribution company. The third party entity may be a power retailer. Further, the power generation facility 200, the demand facility 300, the facility 400, the power generation side device 500, the demand side device 600, and the third party server 700 are connected by the network 30. Although not particularly limited, the network 30 may include an Internet network or a mobile communication network. The network 30 may include a VPN (Virtual Private Network).

The power generation facility 200 is a facility belonging to a predetermined entity. The power generation facility 200 is connected to the power system 20 via the power line 21. The power line 21 may be a power line managed by a predetermined entity or may be a part of the power system 20.

In FIG. 1, as the power generation facility 200, the power generation facility 200A and the power generation facility 200B are exemplified. The power generation facility 200A and the power generation facility 200B may be provided at geographically separated positions. The power generation facility 200A has a distributed power source 210A, a PCS220A, and an EMS230A. The power generation facility 200B has a distributed power source 210B, a PCS220B, and an EMS230B. Since the power generation facility 200A and the power generation facility 200B have the same configuration, the power generation facility 200 will be described below without distinguishing between the power generation facility 200A and the power generation facility 200B.

The power generation facility 200 has a distributed power source 210, a PCS (Power Conditioning System) 220, and an EMS (Energy Management System) 230. The distributed power source 210 is a device that outputs electric power. The distributed power source 210 may be a device that outputs electric power by using renewable energy. For example, the distributed power source 210 may be a solar cell device. The PCS 220 is a power adjusting device that converts DC power output from the distributed power source 210 into AC power. The EMS 230 manages the electric power of the power generation facility 200. The EMS 230 may be provided by a cloud service. The EMS 230 has at least a function of communicating with the power generation side device 500.

Here, the power generation facility 200 may have a smart meter that measures the electric power output from the power generation facility 200. The smart meter may have a function of communicating with the power generation side device 500.

The demand facility 300 is a facility that belongs to a predetermined entity like the power generation facility 200. In the embodiment, two or more demand facilities 300 may be provided. The demand facility 300 is connected to the power system 20 via the power line 22. The power line 22 may be a power line managed by a predetermined entity or may be a part of the power system 20.

The demand facility 300 has a load 310 and an EMS 320. The load 310 consumes the power supplied from the power system 20. For example, when the demand facility 300 is a production base, the load 310 may include a production facility. When the demand facility 300 is a commercial facility, the load 310 may include an air conditioner, lighting equipment, and the like. The EMS 320 manages the electric power of the demand facility 300. The EMS 320 may be provided by a cloud service. The EMS 320 has at least a function of communicating with the demand side device 600.

Here, the demand facility 300 may have a smart meter that measures the electric power supplied from the power system 20 to the demand facility 300. The smart meter may have a function of communicating with the demand side device 600.

The facility 400 is a facility managed by the demand side device 600. The facility 400 belongs to an entity different from the predetermined entity described above. Facility 400 has a load that consumes the power supplied from the power system 20. For example, the load may include an air conditioner, lighting equipment, and the like.

Here, the facility 400 may have a smart meter that measures the power supplied from the power system 20 to the facility 400. The smart meter may have a function of communicating with the demand side device 600.

The power generation side device 500 is a device that manages the power generation facility 200. The power generation side device 500 may manage the distributed power source 210 provided in the power generation facility 200, or may manage the PCS 220 provided in the power generation facility 200. The entity that manages the power generation side device 500 may be different from the predetermined entity and the third party entity. For example, the power generation side device 500 may be a maintenance server that monitors the operating state of the distributed power source 210. Details of the power generation side device 500 will be described later (see FIG. 2).

The demand-side device 600 is a device that manages the demand facility 300 and the facility 400 (hereinafter, may be referred to as a facility group). The entity that manages the demand-side device 600 may be different from the predetermined entity and the third-party entity. Such an entity may be a retailer or a business such as a resource aggregator. Such an entity may be a power generation operator or a power transmission and distribution business operator. Details of the demand-side device 600 will be described later (see FIG. 3).

The third-party server 700 is a server that confirms various matters related to self-consignment. The self-consignment is a mechanism for transmitting the electric power output from the power generation facility 200 from the power generation facility 200 to the demand facility 300 via the power system 20. The entity that manages the third party server 700 may be different from the predetermined entity and the third party entity. For example, such an entity may be the OCCTO. The third-party server 700 may be a power transmission and distribution business operator or an electric power retailer. For example, the third party server 700 confirms the following points.

First, the third-party server 700 has a planned output value of the electric power output from the power generation facility 200 (here, synonymous with the electric power transmitted by self-consignment) and an actual output value of the electric power output from the power generation facility 200. You may check the difference with. The output planned value and the output actual value are totaled for each unit time (for example, 30 minutes). If the difference between the output planned value and the output actual value exceeds the permissible threshold value, a penalty may be imposed on the predetermined entity. An incentive may be given to a predetermined entity when the difference between the output planned value and the output actual value does not exceed the permissible threshold value. Penalties and incentives may be monetary.

Second, the third-party server 700 is supplied from the power system 20 to the total demand plan value of the power supplied from the power system 20 to the facility group managed by the demand side device 600 and to the facility group. You may check the difference from the actual value of the total demand for electricity. The total demand plan value and the total demand actual value are totaled for each unit time (for example, 30 minutes). If the difference between the aggregate demand planned value and the aggregate demand actual value exceeds the permissible threshold value, a penalty may be imposed on the entity that manages the predetermined demand side device 600. An incentive may be given to the entity that manages the demand side device 600 when the difference between the total demand planned value and the total demand actual value does not exceed the allowable threshold value. Penalties and incentives may be monetary.

Third, the third-party server 700 has a total procurement plan value procured from the power system 20 for the facility group managed by the demand-side device 600 and a total procurement of electric power procured from the power system 20 for the facility group. You may check the difference from the actual value. The total procurement plan value and the total procurement actual value are totaled for each unit time (for example, 30 minutes). If the difference between the total procurement plan value and the total procurement actual value exceeds the permissible threshold value, a penalty may be imposed on the entity that manages the demand side device 600. An incentive may be given to the entity that manages the demand-side device 600 when the difference between the total procurement plan value and the total procurement actual value does not exceed the permissible threshold value. Penalties and incentives may be monetary.

Here, the total procurement plan value is a value obtained by subtracting the output plan value from the total demand plan value. The total procurement actual value is the value obtained by subtracting the output actual value from the total demand actual value. Alternatively, the total procurement actual value may be a value obtained by subtracting the output planned value from the total demand actual value. The total procurement plan value may be a value corrected in consideration of the transmission loss from the power generation facility 200 to the demand facility 300. Alternatively, the output planned value may be a value corrected in consideration of the transmission loss from the power generation facility 200 to the demand facility 300. Similarly, the total procurement actual value may be a value corrected in consideration of the transmission loss from the power generation facility 200 to the demand facility 300. Alternatively, the actual output value may be a value corrected in consideration of the transmission loss from the power generation facility 200 to the demand facility 300. Consideration of transmission loss is to subtract the value corresponding to transmission loss from the planned value or the actual value.

Fourth, the third-party server 700 may check the difference between the procurement plan value and the procurement actual value for the demand facility 300. The procurement plan value and the procurement actual value are totaled for each unit time (for example, 30 minutes). A penalty may be imposed on a given entity if the difference between the planned procurement value and the actual procurement value exceeds the permissible threshold. An incentive may be given to a predetermined entity when the difference between the procurement plan value and the procurement actual value does not exceed the allowable threshold value. Penalties and incentives may be monetary.

Here, the procurement plan value is a value obtained by subtracting the output plan value from the demand plan value of the electric power supplied from the power system 20 to the demand facility 300. The actual procurement value is a value obtained by subtracting the actual output value from the actual demand value of the electric power supplied from the electric power system 20 to the demand facility 300.

Although not particularly limited, communication in the power generation facility 200 may be performed according to the first protocol. As the first protocol, a protocol compliant with ECHONET Lite, SEP (Smart Energy Profile) 2.0, KNX, or a unique dedicated protocol can be used. Communication between the power generation facility 200 and the power generation side device 500 may be performed according to a second protocol different from the first protocol. As the second protocol, a protocol compliant with Open ADR (Automated Demand Response) or a unique dedicated protocol can be used.

Communication within the demand facility 300 may be performed according to the first protocol. As the first protocol, a protocol compliant with ECHONET Lite, SEP2.0, KNX, or a unique dedicated protocol can be used. Communication between the demand facility 300 and the demand side device 600 may be performed according to a second protocol different from the first protocol. As the second protocol, a protocol compliant with Open ADR or a unique dedicated protocol can be used.

The communication between the power generation side device 500 and the demand side device 600, the communication between the power generation side device 500 and the third party server 700, and the communication between the demand side device 600 and the third party server 700 are second. It may be done according to the protocol.

In the embodiment, under such a background, a mechanism for executing peak cut control of the demand facility 300 is provided on the premise of self-consignment from the power generation facility 200 to the demand facility 300. The peak cut control is a control that suppresses the demand power supplied from the power system 20 to the demand facility 300 to the threshold value or less during the target time. The target time is a unit time (for example, 30 minutes) included in a predetermined period for which the output plan value and the demand plan value are to be formulated. The predetermined period may be one day, one week, one month, or one year. The procured power is the power obtained by subtracting the output power from the demand power. It should be noted that the threshold value used in the peak cut control is a concept different from the above-mentioned allowable threshold value.

Here, as a result of diligent studies, the inventors have focused on the fact that the power generation facility 200 is required to control the output planned value and the actual output value closer to each other, and in the peak cut control, the actual value of the output power is used as the output power. We found a new finding that even if it is replaced with the planned value of, it is unlikely that a substantial problem will occur. In the embodiment, based on such new knowledge, the demand power to be monitored by the peak cut control is replaced with the calculated value of the procured power. The calculated value of the procured power is the difference between the actual value of the demand power (the above-mentioned actual demand value) and the planned value of the output power (the above-mentioned output planned value).

In such a case, the demand-side device 600 monitors the calculated value of the procured power so that the calculated value of the procured power does not exceed the threshold value in the target time. Since the output planned value is predetermined, the calculated value of the procured power is influenced by the actual demand value (or the expected demand value) that changes from moment to moment. Therefore, the monitoring of the calculated value of the procured power may be considered as the monitoring of the actual demand value (or the estimated demand value).

For example, when there is one demand facility 300, a part or all of the planned output values of one or more power generation facilities 200 are assigned to one demand facility 300. When the demand facility 300 is 2 or more, a part or all of the planned output values of the power generation facility 200 of 1 or more are assigned to each of the demand facility 300 of 2 or more.

(Power generation side device)
Hereinafter, the power generation side device according to the embodiment will be described. As shown in FIG. 2, the power generation side device 500 includes a communication unit 510, a management unit 520, and a control unit 530.

The communication unit 510 is composed of a communication module. The communication module may be a wireless communication module compliant with standards such as IEEE802.11a / b / g / n, ZigBee, Wi-SUN, LTE, and 5G, and a wired communication module compliant with standards such as IEEE802.3. It may be.

The communication unit 510 receives the output plan value aggregated for each unit time from the power generation facility 200. The output plan value may be an output plan value for a predetermined period. The predetermined period may be one day, one week, one month, or one year. For example, when the predetermined period is one day, the communication unit 510 receives the output plan value on the nth day at any timing before the n-1th day.

The communication unit 510 may receive the output actual value aggregated for each unit time from the power generation facility 200. The actual output value may be an actual output value for a predetermined period. The predetermined period may be one day, one week, one month, or one year. For example, when the predetermined period is one day, the communication unit 510 receives the output actual value on the nth day at any timing after the n + 1th day.

The communication unit 510 may receive the output measurement value of the electric power output from the power generation facility 200 from the power generation facility 200. In such a case, the actual output value is obtained by aggregating the measured output values for each unit time. The communication unit 510 may receive the output measurement value at a time interval (for example, 1 minute) shorter than the unit time.

The communication unit 510 transmits the output plan value aggregated for each unit time to the third party server 700. The communication unit 510 transmits the output plan value aggregated for each unit time to the demand side device 600. For example, when the predetermined period is one day, the communication unit 510 transmits the output plan value on the nth day at any timing before the n-1th day.

The communication unit 510 transmits the output actual value aggregated for each unit time to the third party server 700. The communication unit 510 may transmit the output actual value aggregated for each unit time to the demand side device 600. For example, when the predetermined period is one day, the communication unit 510 transmits the output actual value on the nth day at any timing after the n + 1th day.

In the following, a message including a first electric power information element relating to electric power output from the power generation facility 200 to the electric power system 20 for the purpose of self-consignment will be referred to as a first message. The first message is a message transmitted from the power generation side device 500 to the demand side device 600. The first message includes at least the output plan values described above. The first message may include an information element indicating at least one of the output measured value and the output actual value. The details of the first message will be described later (FIG. 6).

The communication unit 510 may receive the operating state of the distributed power source 210 from the power generation facility 200. The operating state may include at least one of the output power of the distributed power source 210 and the output power of the PCS 220. The operating state may include information indicating whether or not the distributed power source 210 is operating normally, or may include information indicating whether or not the PCS 220 is operating normally.

The management unit 520 is composed of a memory such as a non-volatile memory and / and a storage medium such as an HDD (Hard disk drive), and stores various information.

The management unit 520 manages the output planned value and the output actual value. The management unit 520 may manage the output measured value and the expected output value. The expected output value is the actual output value (expected value) assumed at the expiration of the unit time. The management unit 520 may manage the operating state of the distributed power source 210.

The control unit 530 may include at least one processor. At least one processor may be composed of a single integrated circuit (IC) or may be composed of a plurality of communicably connected circuits (such as integrated circuits and / or discrete circuits).

The control unit 530 controls the elements constituting the power generation side device 500. For example, the control unit 530 instructs the communication unit 510 to transmit the output planned value and the output actual value. The control unit 530 may execute output power control to bring the actual output value closer to the planned output value when it is assumed that the actual output value deviates from the planned output value at the expiration of the unit time. Such output power control may include control to increase or decrease the output power of the PCS 220.

Here, the control unit 530 may determine whether or not the actual output value deviates from the planned output value at the expiration of the unit time based on the expected output value. The control unit 530 may estimate the expected output value based on the transition of the measured output value in a unit time. The control unit 530 may estimate the expected output value by linear prediction of the output measured value. The control unit 530 may estimate the expected output value by machine learning of the correlation between the measured output value and the attribute. Attributes may include time zone, day of the week, season, weather (solar radiation, temperature, humidity, etc.).

In the embodiment, in the case where two or more demand facilities 300 are provided, the control unit 530 sets the output planned value so that the calculated value of the procured power in each of the two or more demand facilities 300 does not exceed the threshold value in the target time. Allocation control assigned to each of the two or more demand facilities 300 may be executed. In the case where two or more power generation facilities 200 are provided, the control unit 530 may allocate the output plan values of the two or more power generation facilities 200 to each of the two or more demand facilities 300 in the allocation control. In such an allocation control, the control unit 530 may execute the allocation control based on the respective demand plan values of the two or more demand facilities 300 before the target time. In other words, the execution timing of the allocation control is after the timing of formulating the output plan value and the demand plan value, and before the start of the predetermined period for which the output plan value and the demand plan value are formulated.

(Demand side equipment)
Hereinafter, the demand-side device according to the embodiment will be described. As shown in FIG. 3, the demand-side device 600 includes a communication unit 610, a management unit 620, and a control unit 630.

The communication unit 610 is composed of a communication module. The communication module may be a wireless communication module compliant with standards such as IEEE802.11a / b / g / n, ZigBee, Wi-SUN, LTE, and 5G, and a wired communication module compliant with standards such as IEEE802.3. It may be.

The communication unit 610 may receive the demand plan value of the electric power supplied from the electric power system to each of the facilities (demand facility 300 and facility 400) included in the facility group from each of the facilities included in the facility group. The demand plan value may be aggregated for each unit time. The demand plan value may be a demand plan value for a predetermined period. The predetermined period may be one day, one week, one month, or one year. For example, when the predetermined period is one day, the communication unit 610 receives the demand plan value on the nth day at any timing before the n-1th day.

The communication unit 610 receives the actual demand value of the electric power supplied from the electric power system to each of the facilities included in the facility group from each of the facility groups. The actual demand value may be aggregated for each unit time. The actual demand value may be an actual demand value for a predetermined period. The predetermined period may be one day, one week, one month, or one year. For example, when the predetermined period is one day, the communication unit 610 receives the actual demand value on the nth day at any timing after the n + 1th day.

The communication unit 610 may receive the aggregate demand measurement value for the facility group from the facility group. In such a case, the aggregate demand actual value is obtained by aggregating the aggregate demand measurement value for each unit time. The communication unit 510 may receive the demand measurement value at a time interval (for example, 1 minute) shorter than the unit time.

The communication unit 610 may receive the demand measurement value for the demand facility 300 from the demand facility 300. In such a case, the actual demand value is obtained by aggregating the measured demand values for each unit time. The communication unit 510 may receive the demand measurement value at a time interval (for example, 1 minute) shorter than the unit time.

In the following, a message including a second electric power information element relating to electric power output from the demand facility 300 to the electric power system 20 for the purpose of self-consignment will be referred to as a second message. The second message is a message transmitted from the demand side device 600 to the power generation side device 500. The second message includes at least the above-mentioned demand plan value. The second message may include an information element indicating at least one of the measured demand value and the actual demand value. The details of the second message will be described later (FIG. 7).

The communication unit 610 transmits the total procurement plan value of the facility group aggregated for each unit time to the third party server 700. The total procurement plan value may be a total procurement plan value for a predetermined period. The predetermined period may be one day, one week, one month, or one year. For example, when the predetermined period is one day, the communication unit 610 transmits the total procurement plan value on the nth day at any timing before the n-1th day.

The communication unit 610 transmits the total procurement actual value of the facility group aggregated for each unit time to the third party server 700. For example, when the predetermined period is one day, the total procurement plan value may be the total procurement plan value for the predetermined period. The predetermined period may be one day, one week, one month, or one year. For example, when the predetermined period is one day, the communication unit 610 transmits the total procurement actual value on the nth day at any timing after the n + 1th day.

The communication unit 610 transmits the procurement plan value of the demand facility 300 aggregated for each unit time to the third party server 700. For example, when the predetermined period is one day, the communication unit 610 transmits the procurement plan value on the nth day at any timing before the n-1th day.

The communication unit 610 transmits the procurement actual value of the demand facility 300 aggregated for each unit time to the third party server 700. For example, when the predetermined period is one day, the communication unit 610 transmits the procurement actual value on the nth day at any timing after the n + 1th day.

The communication unit 610 may transmit the total demand plan value of the facility group aggregated for each unit time to the third party server 700. For example, when the predetermined period is one day, the communication unit 610 transmits the aggregate demand plan value on the nth day at any timing before the n-1th day.

The communication unit 610 may transmit the total demand actual value of the facility group aggregated for each unit time to the third party server 700. For example, when the predetermined period is one day, the communication unit 610 transmits the total demand actual value on the nth day at any timing after the n + 1th day.

The communication unit 610 may receive the operating state of the load 310 from the demand facility 300. The communication unit 610 may receive the operating state of the load 310 provided in the facility 400 from the facility 400. The operating state may include the power consumption of the load 310. The operating state may include information indicating whether or not the load 310 is operating normally.

The management unit 620 is composed of a memory such as a non-volatile memory and / and a storage medium such as an HDD (Hard disk drive), and stores various information.

The management unit 620 manages the total procurement plan value and the total procurement actual value for the facility group. The management unit 620 may manage the procurement plan value and the procurement actual value for the demand facility 300. The management unit 620 may manage the total demand plan value and the total demand actual value for the facility group. The management unit 620 may manage the demand plan value and the demand actual value for the demand facility 300. The management unit 620 may manage the total demand measurement value, the total demand forecast value, the demand measurement value, and the demand forecast value. The estimated total demand value is the actual total demand value (estimated value) assumed at the expiration of the unit time. The expected demand value is the actual demand value (estimated value) assumed at the expiration of the unit time. The management unit 620 may manage the operating state of the load 310.

The control unit 630 may include at least one processor. At least one processor may be composed of a single integrated circuit (IC) or may be composed of a plurality of communicably connected circuits (such as integrated circuits and / or discrete circuits).

The control unit 630 controls the elements constituting the demand side device 600. For example, the control unit 630 instructs the communication unit 610 to transmit the total procurement plan value and the total procurement actual value for the facility group. The control unit 630 may instruct the communication unit 610 to transmit the procurement plan value and the procurement actual value for the demand facility 300.

The control unit 630 may instruct the communication unit 510 to transmit the total demand plan value and the total demand actual value. The control unit 630 may execute control to bring the aggregate demand actual value closer to the aggregate demand plan value when it is assumed that the aggregate demand actual value deviates from the aggregate demand plan value at the time when the unit time expires. Such controls may include controls that increase or decrease the power consumption of the load provided in the facility 400.

Here, the control unit 630 may determine whether or not the actual total demand value deviates from the planned total demand value at the expiration of the unit time based on the estimated total demand value. The control unit 630 may estimate the estimated aggregate demand value based on the transition of the measured aggregate demand value in a unit time. The control unit 630 may estimate the estimated aggregate demand value by linear prediction of the measured aggregate demand value. The control unit 630 may estimate the estimated total demand value by machine learning of the correlation between the measured total demand value and the attribute. Attributes may include time zones, days of the week, and seasons.

Similarly, the control unit 630 may instruct the communication unit 510 to transmit the demand plan value and the demand actual value. The control unit 630 may execute control to bring the actual demand value closer to the planned demand value when it is assumed that the actual demand value deviates from the planned demand value at the expiration of the unit time. Such controls may include controls that increase or decrease the power consumption of the load 310.

Here, the control unit 630 may determine whether or not the actual demand value deviates from the planned demand value at the expiration of the unit time based on the expected demand value. The control unit 630 may estimate the estimated demand value based on the transition of the measured demand value in a unit time. The control unit 630 may estimate the expected demand value by linear prediction of the measured demand value. The control unit 630 may estimate the expected demand value by machine learning of the correlation between the measured demand value and the attribute. Attributes may include time zones, days of the week, and seasons.

In the embodiment, the control unit 630 monitors the calculated value of the procured power so that the calculated value of the procured power assumed as the value of the power procured from the power system 20 as a predetermined entity does not exceed the threshold value in the target time. As described above, the calculated value of the procured power is the difference between the actual demand value and the planned output value. When two or more demand facilities 300 are provided, the control unit 630 executes the above-mentioned monitoring for each demand facility 300.

Further, the control unit 630 may execute the demand power control for controlling the demand power in the target time so that the calculated value of the procured power does not exceed the threshold value in the target time. As described above, the calculated value of the procured power is the difference between the actual demand value and the planned output value. Therefore, if it is assumed that the calculated value of the procured power obtained by subtracting the output planned value from the actual demand value exceeds the threshold value at the expiration of the target time, it is necessary to reduce the calculated value of the procured power. Such demand power control includes control of the power consumption of the load provided in the demand facility 300. When two or more demand facilities 300 are provided, the control unit 630 executes demand power control for each demand facility 300.

Here, assuming a case where the output planned value is assigned so that the calculated value of the procured power does not exceed the threshold value in the target time, if the actual demand value matches the planned demand value, the calculated value of the procured power is the threshold value. Does not exceed. Therefore, the control that brings the actual demand value closer to the planned demand value may be considered as an example of the demand power control.

The monitoring of the calculated value of the procured power and the demand power control described above are examples of the peak cut control described above.

(Assignment control)
The allocation control according to the embodiment will be described below. Here, an example is illustrated in which a power generation facility A and a power generation facility B are provided as the power generation facility 200, and a demand facility A and a demand facility B are provided as the demand facility 300.

In such a case, consider a situation in which the demand plan values of the demand facility A and the demand facility B are the values shown in FIG.

As shown in FIG. 4, for the demand facility A, the demand plan value greatly exceeds the threshold value at the unit time N and the unit time N + 1, and the demand plan value slightly exceeds the threshold value at the unit time N + 2. Therefore, in order to realize the situation where the calculated value of the procured power does not exceed the threshold value for the demand facility A, it is necessary to assign a large value as the output plan value in the unit time N and the unit time N + 1, and the output plan in the unit time N + 2. You can assign a small value as the value.

On the other hand, for the demand facility B, the demand plan value is below the threshold value at the unit time N, the demand plan value slightly exceeds the threshold value at the unit time N + 1, and the demand plan value greatly exceeds the threshold value at the unit time N + 2. Over. Therefore, in order to realize the situation where the calculated value of the procured power does not exceed the threshold value for the demand facility B, it is not necessary to allocate the output plan value in the unit time N, and a small value can be assigned as the output plan value in the unit time N + 1. It is necessary to assign a large value as the output plan value in the unit time N + 2.

Here, the power generation side device 500 executes allocation control based on the demand plan value shown in FIG. As described above, the allocation control is a control in which the output planned value is assigned to each of the two or more demand facilities so that the calculated value of the procured power does not exceed the threshold value in the target time in each of the two or more demand facilities 300. ..

For example, as shown in FIG. 5, the power generation side device 500 allocates all the output planned values of the power generation facility A and a part of the output planned values of the power generation facility B to the demand facility A at the unit time N and the unit time N + 1. , The rest of the planned output value of the power generation facility B is allocated to the demand facility B. On the other hand, the power generation side device 500 allocates a part of the output planned value of the power generation facility A and all the output planned values of the power generation facility B to the demand facility B in the unit time +2, and the rest of the output planned values of the power generation facility A. Is assigned to demand facility A.

FIG. 5 merely illustrates an example of allocation control. Allocation control may be executed so that the calculated value of the procured power does not exceed the threshold value in the target time in each of the two or more demand facilities 300. For example, in the unit time N, since the calculated value of the procured power of the demand facility B does not exceed the threshold value, it is not necessary to assign the output plan value to the demand facility B.

Furthermore, if not all of the planned output values of the power generation facility need to be assigned to any demand facility and the calculated value of the procured power does not exceed the threshold value, a part of the planned output value of the power generation facility is third. May be sold to a person entity.

(1st message and 2nd message)
Hereinafter, the first message and the second message according to the embodiment will be described.

First, the first message will be described with reference to FIG. As described above, the first message is a message transmitted from the power generation side device 500 to the demand side device 600.

As shown in FIG. 6, the first message includes power generation facility identification information, demand facility identification information, and first electric power information.

The power generation facility identification information is an information element for identifying the power generation facility 200 related to self-consignment with respect to the first electric power information included in the first message.

The demand facility identification information is an information element that identifies the demand facility 300 related to self-consignment with respect to the first electric power information included in the first message.

The first power information includes at least the output planned value. Here, the output plan value is an output plan value assigned to each demand facility 300 after the allocation control described with reference to FIGS. 4 and 5 is executed. That is, the output plan value is a value assigned to each demand facility 300 so as to be distinguishable. The first power information may include an information element indicating at least one of an output measured value and an output actual value. The output measured value and the output actual value may not be the values assigned to each demand facility 300, but may be values that should be grasped by the demand side device 600.

For example, in the case where two or more demand facilities 300 are provided, as shown in FIG. 6, the first message is 2 with the power generation facility identification information, the demand facility identification information, and the first power information as one set of information element groups. It may include a set or more of information elements. Similarly, in the case where two or more power generation facilities 200 are provided, the first message may include two or more sets of information elements. Further, the power generation facility identification information may be configured to include an information element that identifies each of the two or more power generation facilities 200. The first message may have a mode in which the output plan value assigned to the demand facility 300 can be grasped for each demand facility 300. The first message does not have to include the power generation facility identification information.

However, when the first power information includes the output measured value or the output actual value, the first message may include one set of information element groups.

Secondly, the second message will be described with reference to FIG. 7. As described above, the second message is a message transmitted from the demand side device 600 to the power generation side device 500.

As shown in FIG. 7, the second message includes demand facility identification information, power generation facility identification information, route information, and second power information.

Since the demand facility identification information and the power generation facility identification information are the same as the information elements included in the first message described above, detailed description thereof will be omitted.

The second power information includes at least the demand plan value. The demand plan value is a value formulated so that each demand facility 300 can be distinguished. The second electric power information may include an information element indicating at least one of a demand measurement value and a demand actual value. The demand measurement value and the actual demand value may not be values that are determined so as to distinguish each demand facility 300, but may be values that should be grasped as the demand side device 600.

For example, in the case where two or more demand facilities 300 are provided, as shown in FIG. 7, the second message is 2 with the power generation facility identification information, the demand facility identification information, and the first power information as one set of information element groups. It may include a set or more of information elements. Similarly, in the case where two or more power generation facilities 200 are provided, the second message may include two or more sets of information elements. Further, the power generation facility identification information may be configured to include an information element that identifies each of the two or more power generation facilities 200. The second message may have a mode in which the demand plan value assigned to the demand facility 300 can be grasped for each demand facility 300. The second message does not have to include the power generation facility identification information.

However, when the second power information includes the demand measurement value or the demand actual value, the second message may include one set of information element groups.

Here, the power generation facility identification information and the demand facility identification information are examples of information elements for identifying the loss in the power system 20 for the electric power transmitted from the power generation facility 200 to the demand facility 300 by self-consignment. In the power system 20, the loss may be specified by the demand facility identification information, or may be specified by both the power generation facility identification information and the demand facility identification information. In the power system 20, the loss may be represented by the amount of loss (loss amount) or the percentage of loss (loss rate). Here, the loss in the power system 20 may be fixedly determined by the height of the voltage of the power line to which the demand facility 300 is connected. For example, the loss rate of the low voltage may be 7.1%, the loss rate of the high voltage may be 4.2%, and the loss rate of the extra high voltage may be 2.9%.

As described above, at least one of the first message and the second message may include an information element for identifying the loss in the power system 20 for the electric power transmitted by self-consignment. Therefore, if the loss can be identified by the demand facility identification information, at least one of the first message and the second message may not include the power generation facility identification information.

(Self-consignment method)
First, regarding the self-consignment method according to the embodiment, the flow of notifying the third-party server 700 of the planned value will be described.

As shown in FIG. 8, in step S11, the power generation facility 200 transmits the planned output value to the power generation side device 500.

In step S12, the power generation side device 500 transmits the output plan value received from the power generation facility 200 to the third party server 700.

In step S13, the third party server 700 manages the output planned value received from the power generation side device 500.

In step S14, the demand facility 300 transmits the aggregate demand planned value to the demand side device 600.

In step S15, the facility 400 transmits the aggregate demand planned value to the demand side device 600. According to such a process, the demand side device 600 can acquire the total demand plan value.

In step S16, the power generation side device 500 receives the second message from the demand side device 600. Here, the second message includes the demand plan value in a manner in which each demand facility 300 can be distinguished. The power generation side device 500 may grasp the procurement plan value of the demand facility 300 based on the second message.

In step S17, the power generation side device 500 allocates the output planned value to each of the two or more demand facilities 300 so that the calculated value of the procured power does not exceed the threshold value in each of the two or more demand facilities 300 in the target time. Take control. The power generation side device 500 executes allocation control based on the demand plan value included in the second message.

In step S18, the demand side device 600 receives the first message from the power generation side device 500. Here, the first message includes an output plan value in a manner that distinguishes each demand facility 300.

In step S19, the demand side device 600 transmits display data for displaying the output planned value to the demand facility 300. Here, the display data may be data for displaying the output planned value reflecting the loss generated in the power system 20. The display data may be data for displaying an output planned value that can identify the loss that occurs in the power system 20.

In step S20, the demand facility 300 displays the output planned value based on the display data. The output planned value (GUI; Graphical User Interface) may be a mode in which the loss generated in the power system 20 is reflected, or may be a mode in which the loss generated in the power system 20 can be specified.

In step S21, the demand side device 600 manages the total procurement plan value.

In step S22, the demand side device 600 transmits the total procurement plan value to the third party server 700. The demand-side device 600 may transmit the procurement plan value for the demand facility 300 to the third-party server 700.

In step S23, the third party server 700 manages the total procurement plan value received from the demand side device 600. The third-party server 700 may manage the procurement plan value for the demand facility 300.

Secondly, regarding the self-consignment method according to the embodiment, the flow of notifying the actual value to the third-party server 700 will be described.

As shown in FIG. 7, the power generation side device 500 and the demand side device 600 may execute steps S30A and 30B as a pre-stage of the flow of notifying the actual value.

In step S30A, the power generation side device 500 controls the output power to bring the actual output value closer to the planned output value when it is assumed that the actual output value deviates from the planned output value at the expiration of the unit time for each power generation facility 200. May be executed.

In step S30B, the demand side device 600 executes peak cut control for each demand facility 300. Specifically, the demand-side device 600 is a calculated value of the procured power (may be considered as an estimated demand value) for each demand facility 300 so that the calculated value of the procured power does not exceed the threshold value at the expiration of the unit time. To monitor. The demand side device 600 executes demand power control for each demand facility 300 to control the demand power so that the calculated value of the procured power does not exceed the threshold value in the target time at the expiration of the unit time. The demand power control may include a control that brings the actual demand value closer to the planned demand value.

In step S31, the power generation facility 200 transmits the actual output value to the power generation side device 500.

In step S32, the power generation side device 500 transmits the output actual value received from the power generation facility 200 to the third party server 700.

In step S33, the demand side device 600 receives the first message from the demand side device 600. Here, the first message includes an information element indicating an actual output value as the first power information.

In step S34, the demand side device 600 transmits the display data for displaying the output actual value to the demand facility 300. Here, the display data may be data for displaying the actual output value reflecting the loss generated in the power system 20. The display data may be data for displaying an actual output value that can identify the loss that occurs in the power system 20.

In step S35, the demand facility 300 displays the actual output value based on the display data. The actual output value (GUI; Graphical User Interface) may reflect the loss generated in the power system 20, or may be a mode in which the loss generated in the power system 20 can be specified.

In step S36, the demand facility 300 transmits the total demand actual value to the demand side device 600.

In step S37, the facility 400 transmits the aggregate demand actual value to the demand side device 600.

In step S38, the power generation side device 500 receives the second message from the demand side device 600. Here, the second message includes an information element indicating the actual demand value of the demand facility 300 as the second electric power information. The power generation side device 500 may grasp the actual procurement value of the demand facility 300 based on the second message.

In step S39, the demand side device 600 transmits the total demand actual value to the third party server 700. The demand-side device 600 may transmit the actual demand value for the demand facility 300 to the third-party server 700.

In step S40, the third party server 700 may confirm the difference between the output planned value and the output actual value. The third-party server 700 may confirm the difference between the total demand planned value and the total demand actual value. The third-party server 700 may check the difference between the total procurement plan value and the total procurement actual value for the facility group. The third-party server 700 may check the difference between the procurement plan value and the procurement actual value for the demand facility 300.

Here, the total procurement plan value is specified by the information received from the demand side device 600 in step S21. The total procurement actual value is specified by the output actual value received from the power generation side device 500 in step S32 and the total demand actual value received from the demand side device 600 in step S39. The actual procurement value is specified by the actual output value received from the power generation side device 500 in step S32 and the actual demand value received from the demand side device 600 in step S39.

(Action and effect)
In the embodiment, the power demand to be monitored by the peak cut control is procured based on the new knowledge that even if the actual output value is replaced with the planned output value in the peak cut control, it is unlikely that a substantial problem will occur. Substitute with the calculated value of. The calculated value of the procured power is the difference between the actual demand value and the planned output value. According to such a configuration, as a parameter to be controlled by the peak cut control, the calculated value of the procured power (that is, the actual demand value) may be monitored without being aware of the actual output value that changes from moment to moment. Therefore, the control load associated with the peak cut control is reduced, and the accuracy of the peak cut control can be expected to be improved.

In the embodiment, the power generation side device 500 allocates the output planned value to each of the two or more demand facilities 300 so that the calculated value of the procured power does not exceed the threshold value in each of the two or more demand facilities 300 in the target time. Take control. With such a configuration, it is possible to reduce the possibility that the calculated value of the procured power exceeds the threshold value.

In the embodiment, the demand side device 600 executes demand power control that controls the demand power so that the calculated value of the procured power does not exceed the threshold value in the target time at the expiration of the unit time. With such a configuration, it is possible to reduce the possibility that the calculated value of the procured power exceeds the threshold value.

In the embodiment, the demand power to be monitored by the peak cut control is replaced by the calculated value of the procured power. According to such a configuration, the control that brings the actual demand value closer to the planned demand value is considered to be an example of the demand power control. In other words, peak cut control is realized as part of the purpose that the difference between the actual demand value and the planned demand value does not exceed the permissible threshold value.

[Change example 1]
Hereinafter, modification 1 of the embodiment will be described. In the following, the differences from the embodiments will be mainly described.

In the first modification, a case where an auxiliary power supply provided in the self-consignment system 100 is provided will be illustrated. The auxiliary power source may be a power source that can be controlled by the power generation side device 500, or may be a power source that can be controlled by the demand side device 600.

As shown in FIG. 10, the power generation facility 200 has a power storage device 240 and a PCS 250 in addition to the configuration shown in FIG. The demand facility 300 has a power storage device 340 and a PCS 350 in addition to the configuration shown in FIG. Since other configurations are the same as those in FIG. 1, the description thereof will be omitted.

The power storage device 240 is a device that stores electric power, and is an example of an auxiliary power source that can be controlled by the power generation side device 500. The PCS 250 converts the DC power output from the power storage device 240 into AC power, or converts the AC power supplied from the power system 20 into DC power.

The power storage device 340 is a device that stores electric power, and is an example of an auxiliary power source that can be controlled by the demand side device 600. The PCS350 converts the DC power output from the power storage device 340 into AC power, or converts the AC power supplied from the power system 20 into DC power.

In such a case, the power generation side device 500 controls the power storage device 240 (or PCS250) so that the actual output value approaches the planned output value when the actual output value deviates from the planned output value. Similarly, the demand-side device 600 controls the power storage device 340 (or PCS350) so that the actual demand value approaches the planned demand value when the actual demand value deviates from the planned demand value.

In such a case, the demand side device 600 may control the power storage device 340 in the demand power control of each demand facility 300. The power storage device 340 is an example of a distributed power source used for power demand control. Such a distributed power source is not limited to the power storage device 340, and may include a solar cell device or a fuel cell device.

[Change example 2]
Hereinafter, modification 2 of the embodiment will be described. In the following, the differences from the embodiments will be mainly described.

In the second modification, the power generation side device 500 executes allocation control based on the loss generated in the power system 20 for the power transmitted by self-consignment. Under the premise that a loss occurs in the power system 20, the power generation side device 500 subtracts the value corresponding to the loss from the output planned value, and then outputs the planned output value so that the calculated value of the procured power does not exceed the threshold value in the target time. To assign. Here, since the loss is determined by the combination of the power generation facility 200 and the demand facility 300 and the like, the loss used in the allocation control may be different for each demand facility 300 to which the output planned value is assigned.

[Other Embodiments]
Although the present invention has been described by embodiments described above, the statements and drawings that form part of this disclosure should not be understood to limit the invention. Various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art from this disclosure.

In the embodiment, the case where the distributed power source 210 is a solar cell device has been mainly described. However, the embodiment is not limited to this. The distributed power source 210 may be any distributed power source whose output power can fluctuate depending on the external environment (for example, weather, temperature, humidity, etc.). The distributed power source 210 may be a distributed power source that outputs electric power by renewable energy. The distributed power source 210 may include a wind power generation device, a hydroelectric power generation device, a biomass power generation device, or a geothermal power generation device.

In the embodiment, the power generation side device 500 is exemplified as the device for managing the power generation facility 200. However, the embodiment is not limited to this. The device that manages the power generation facility 200 may be the EMS 230.

In the embodiment, the power generation side device 500 executes the output power control. However, the embodiment is not limited to this. The execution subject of the output power control may be the EMS 230 provided in each power generation facility 200.

In the embodiment, the demand side device 600 is exemplified as the device for managing the demand facility 300. However, the embodiment is not limited to this. The device that manages the demand facility 300 may be the EMS 320.

In the embodiment, the demand side device 600 executes demand power control. However, the embodiment is not limited to this. The execution body of the demand power control may be the EMS 320 provided in each demand facility 300.

In the embodiment, the case where the demand facility 300 belongs to the same predetermined entity as the power generation facility 200 is illustrated. However, the embodiment is not limited to this. The demand facility 300 may belong to an entity different from the predetermined entity.

In the embodiment, the power generation side device 500 receives the planned output value from the power generation facility 200. However, the embodiment is not limited to this. The power generation side device 500 may formulate an output plan value by itself. For example, the power generation side device 500 may formulate an output plan value based on the actual output value for the last few days. The power generation side device 500 may formulate an output plan value by machine learning of the correlation between the output power of the power generation facility 200 and the attributes. Although not particularly limited, the attribute may be a parameter (for example, time zone, day of the week, season, weather, temperature, humidity, etc.) that affects the output power of the distributed power source 210.

In the embodiment, the demand side device 600 receives the demand plan value from the demand facility 300. However, the embodiment is not limited to this. The demand-side device 600 may formulate a demand plan value (total demand plan value) by itself. For example, the demand-side device 600 may formulate a demand plan value (total demand plan value) based on the actual demand value (total demand actual image value) for the last few days. The demand-side device 600 may formulate a demand plan value by machine learning of the correlation between the demand power of the demand facility 300 and the attribute. Although not particularly limited, the attribute may be a parameter (time zone, day of the week, season, etc.) that affects the power demand of the demand facility 300.

Although not particularly mentioned in the embodiment, the power generation side device 500 may acquire the actual output value by integrating the output measured values. The demand-side device 600 may acquire the actual demand value (actual total demand image value) by integrating the measured demand values.

Although not specifically mentioned in the embodiments, the machine learning described above may include so-called deep learning. Further, machine learning may be performed using AI (Artificial intelligence).

Although not particularly mentioned in the embodiment, the power generation facility 200 may have a load. In such a case, the output planned value may be the difference between the planned value of the output power of the PCS 220 and the planned value of the demand power of the load. Similarly, the actual output value may be the difference between the actual value of the output power of the PCS 220 and the actual value of the demand power of the load.

Although not particularly mentioned in the embodiment, the demand facility 300 may have a distributed power source. In such a case, the demand planned value may be the difference between the planned value of the output power of the distributed power source and the planned value of the demand power of the load 310. Similarly, the actual demand value may be the difference between the actual value of the output power of the distributed power source and the actual value of the demand power of the load 310.

In the embodiment, the power storage device 240 and the power storage device 340 are exemplified as auxiliary power sources provided in the self-consignment system 100. However, the embodiment is not limited to this. The auxiliary power source may not be provided in the power generation facility 200 and the demand facility 300. The auxiliary power source may be a fuel cell device, a biomass power generation device, a geothermal power generation device, a solar cell device, a wind power generation device, or the like.

In the embodiment, the PCS 220 and the PCS 250 are provided separately. However, the embodiment is not limited to this. The PCS 220 and PCS 250 may be configured by a single multi-DC link PCS.

Although not particularly mentioned in the embodiment, the electric power may be an instantaneous electric power (kW) or an integrated electric energy (kWh) for a certain period (for example, 30 minutes). For example, the planned value and the actual value may be represented by the integrated electric energy (kWh). The measured value and the predicted value may be expressed in instantaneous power (kW). However, the measured value and the predicted value may also be expressed by the integrated electric energy (kWh) by integrating the time.

20 ... power system, 21 ... power line, 22 ... power line, 30 ... network, 100 ... self-consignment system, 200 ... power generation facility, 210 ... distributed power source, 220 ... PCS, 230 ... EMS, 240 ... power storage device, 250 ... PCS, 300 ... Demand facility, 310 ... Load, 320 ... EMS, 340 ... Power storage device, 350 ... PCS, 400 ... Facility, 500 ... Power generation side device, 510 ... Communication unit, 520 ... Management unit, 530 ... Control unit, 600 ... Demand Side device, 610 ... Communication unit, 620 ... Management unit, 630 ... Control unit, 700 ... Third-party server

Claims (10)

A self-consignment system that transmits power output from the power generation facility from a power generation facility belonging to the predetermined entity to a demand facility belonging to the predetermined entity via a power system managed by a third-party entity. And
The power generation side device that manages the power generation facility and
It is equipped with a demand-side device that manages the demand facility.
The demand-side device monitors the calculated value of the procured power so that the calculated value of the procured power assumed as the value of the power procured from the power system as the predetermined entity does not exceed the threshold value in the target time. With a part
The calculated value of the procured power is the difference between the actual value of the demand power supplied from the power system to the demand facility and the planned value of the output power output from the power generation facility to the power system, which is a self-consignment system. .. The self-consignment system according to claim 1, wherein the power generation side device includes a power generation side control unit that executes output power control that brings the actual value of the output power closer to the planned value of the output power. Two or more demand facilities are provided as the demand facilities.
Allocation control is executed in which the planned value of the output power is assigned to each of the two or more demand facilities so that the calculated value of the procured power does not exceed the threshold value in each of the two or more demand facilities. The self-consignment system according to claim 1 or 2, further comprising a control unit. Two or more power generation facilities are provided as the power generation facilities.
The self-consignment system according to claim 3, wherein the control unit allocates a planned value of the output power of each of the two or more power generation facilities to each of the two or more demand facilities in the allocation control. The self-consignment according to claim 3 or 4, wherein the control unit executes the allocation control based on the planned value of the demand power of each of the two or more demand facilities before the target time. system. The self-consignment system according to any one of claims 3 to 5, wherein the control unit executes the allocation control based on the loss generated in the power system for the electric power transmitted by the self-consignment. Claims 1 to 6 that the demand side control unit executes demand power control for controlling the demand power in the target time so that the calculated value of the procured power does not exceed the threshold value in the target time. The self-consignment system according to any one of the above. The self-consignment system according to claim 7, wherein the demand-side control unit controls the power consumption of a load provided in the demand facility in the demand power control. The self-consignment system according to claim 7 or 8, wherein the demand-side control unit controls the output power of the distributed power source provided in the demand facility in the demand power control. A self-consignment method for transmitting power output from the power generation facility from a power generation facility belonging to the predetermined entity to a demand facility belonging to the predetermined entity via a power system managed by a third-party entity. And
The calculated value of the procured power is set so that the calculated value of the procured power assumed as the value of the power procured from the power system as the predetermined entity by the demand side device that manages the demand facility does not exceed the threshold value in the target time. With steps to monitor,
The calculated value of the procured power is a difference between the actual value of the demand power supplied from the power system to the demand facility and the planned value of the output power output from the power generation facility to the power system, which is a self-consignment method. ..

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