JP5979851B2 - Electricity supply and demand adjustment device - Google Patents

Description

  The present invention includes a power supplier having a power generation facility capable of supplying generated power to a power system, a power consumption facility and a private power generation facility, and subtracts the power generated by the private power generation facility from the power consumption by the power consumption facility. The present invention relates to an electric power supply and demand adjustment device that adjusts the supply and demand of electric power among a plurality of electric power consumers configured to cover the insufficient electric power derived by the received electric power from the electric power system.

  In order to supply electric power to electric power consumers, an electric power supplier such as a specific-scale electric power supplier needs to supply electric power from a power generation facility provided therein or procure electric power from others. Moreover, the electric power consumer can install the private power generation equipment for generating the electric power which he consumes. When the private power generation facility is installed, the power consumer can reduce the power purchased from the power supplier, and thus the power cost can be kept low.

  In addition, when the private power generation equipment with which an electric power consumer is equipped stops operation outside a plan by accident, such as a failure, or when an output reduces, an electric power consumer will purchase alternative electric power from an electric power supplier. In other words, it is necessary for the power supplier to have, as a reserve power, power generation that is not normally supplied, assuming that the power generation facility of the power consumer is stopped due to an accident or the like. In addition, the power supplier collects at least a part of the cost by signing a self-supplied supply contract with the power consumer equipped with the private power generation facility in order to collect the reserve power cost as described above from the power consumer. Is generally converted to the power consumer side. In other words, from the power consumer side, although there is a merit that the power cost can be reduced by installing a private power generation facility, the merit is reduced by the existence of a self-supplied supply contract.

  Patent Document 1 discloses an apparatus for minimizing the cost generated by a self-supply replenishment contract of a power consumer after a self-supply replenishment contract is concluded between the power supplier and the power consumer. Have been described. Specifically, in Patent Document 1, selecting a day with less power load as a day for systematically shutting down the private power generation facility provided by the power consumer for maintenance, that is, based on a self-supplied supply contract In other words, it is described that the day when it is necessary to receive the replenishment of power becomes the day when the power load is low.

JP 2004-72871 A

  The device described in Patent Document 1 is intended to reduce the amount of power that the power consumer side receives replenishment based on the self-supplied replenishment contract, and can reduce the reserve power that must be provided on the power supplier side. Not what you want. For example, in Patent Document 1, only the supplementary power at the time of planned shutdown of a power consumer's private power generation facility is considered, and in order to prepare for an unplanned shutdown such as an accident of the private power generation facility Therefore, it is not possible to reduce the reserve capacity that needs to be provided on the power supplier side. Therefore, even if there is an apparatus described in Patent Document 1, the power supplier needs to have the same reserve power as before, and the power supply with the power generation equipment as before will be self-generated. It is assumed that a supply contract is required.

  As described above, since the conventional technology does not enable reduction of reserve power that needs to be provided on the power supplier side, from the power consumer side, due to the existence of a self-supplied supply contract as before, The problem remains that the benefits of installing private power generation facilities are reduced.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a power supply / demand adjustment apparatus capable of adjusting power supply / demand so as to enable reduction of reserve power required on the power supplier side. Is to provide

The characteristic configuration of the power supply and demand adjustment apparatus according to the present invention for achieving the above object includes a power supplier having a power generation facility capable of supplying generated power to the power system, a power consumption facility, and a private power generation facility, Electricity supply and demand for adjusting the supply and demand of electric power to and from electric power consumers who cover the insufficient electric power derived by subtracting the electric power generated by the private power generation equipment from the electric power consumed by the electric power consumption equipment An adjustment device,
Accident detection means for detecting an accident of the private power generation facility;
Reduced power deriving means for deriving the generated power of the private power generation facility where the accident has occurred as a reduced generated power, which is reduced by the accident detected by the accident detecting means,
In order to replenish the reduced generation power, both the power generated by the power generation facility in the power supplier and the power generation by the private power generation facility in which no accident has occurred in the power consumer are subject to adjustment, It performs power supply processing for causing at least one of the power generation adjustment by that originating Denden force to equipment and adjustment of generated power the accident in the power consumer is by the private power generation facility is not occurred in the electric power supplier Supply and demand adjustment means,
In the accident detection means, the generated power of the private power generation facility decreases by a predetermined first set value or more during a unit time, and the received power of the power consumer provided with the private power generation facility is When it increases more than the preset second set value during the same unit time, it is determined that an accident has occurred in the private power generation facility .
In the specification of the present application, “accident of in-house power generation facility” refers to “an event that causes an unintended unplanned operation stop or output decrease”, and is a planned outage accompanying inspection or repair of the in-house power generation facility. Or it is different from the output reduction.

According to the above characteristic configuration, the accident detection means detects an accident of the private power generation facility, and the reduced power deriving means derives the generated power (that is, the reduced generated power) of the private power generation facility that is reduced due to the accident. It is possible to grasp how much power supply is required due to an accident at a power generation facility. Then, in order for the supply and demand adjustment means to replenish the reduced generation power, both the power generated by the power generation facility in the power supplier and the power generation by the private power generation facility in which no accident has occurred in the power consumer are adjusted. A power supply process is performed to adjust at least one of adjustment of power generated by the power generation facility of the supplier and adjustment of power generated by the private power generation facility of the power consumer. In other words, the supply and demand adjustment means does not use only the reserve power reserved in advance by the power supplier to replenish the reduced generated power, but uses a private power generation facility in which no accident has occurred in the power consumer. Can also be used as reserve power. Therefore, since the reserve power that the power supplier should secure in advance can be reduced, the cost to be converted to the power consumer side can be reduced, and as a result, the power consumer can install private power generation equipment. It also leads to a relative increase in the benefits obtained.
In addition, since the accident detection means monitors the temporal change of the generated power of the private power generation facility and the temporal change of the received power of the power consumer, it appears when an accident occurs in the private power generation facility. It is possible to detect a sudden decrease in power generated by a private power generation facility and a rapid increase in power received by a power consumer.

  Another characteristic configuration of the power supply and demand adjustment apparatus according to the present invention is that the supply and demand adjustment means includes the power generation facility in the power supplier and the power consumer in the power supply process to replenish the reduced generated power. The accident in the power supplier and the power consumer has not occurred so that the total amount of cost increase when increasing the generated power of the private power generation facility in which the accident has not occurred is minimized. It is the point which determines the increase request | requirement of the generated electric power with respect to at least any one of a certain private power generation equipment, and transmits the increase request | requirement of the said generated electric power to the said said electric power supplier and the said electric power consumer.

Increasing the power supplied to the power grid by increasing the power generated by the power generation facility of the power supplier can supply power to the power grid, and private accidents have not occurred in power consumers If the received power from the power grid by the power consumer is reduced by increasing the power generated by the power generation facility, the power that the power consumer should have received is the surplus power in the power grid, and apparently This means that the self-power generation facility of the power consumer has supplied the surplus power to the power system. That is, in order to replenish the reduced generation power, it is necessary to adjust the generation power of the power generation facility of the power supplier and the generation power of the private power generation facility of the power consumer. The costs associated with power generation at the facility increase.
In this feature configuration, in the power supply process, the power supply facility and the power customer have no accidents so that the total amount of cost increase for supplying reduced generated power is minimized. A request to increase the generated power for at least one of the private power generation facilities is determined and the increase request for the generated power is transmitted to the corresponding power supplier and power consumer, so that the power generation is reduced while minimizing the increase in cost. Electric power can be supplied.

  Still another characteristic configuration of the power supply and demand adjustment apparatus according to the present invention is that the supply and demand adjustment means adjusts the generated power by a private power generation facility in which at least the accident has not occurred in the power consumer in the power supply processing. There is in point to let you do.

  According to the above characteristic configuration, the power supply process is performed using the adjustment of the generated power by the private power generation facility in which no accident has occurred in the power consumer. Therefore, the power used when performing this power supply process The power generated by the power generation facility of the supplier can be relatively reduced.

The figure explaining the structure of the electric power supply-and-demand system comprised by the electric power supply-and-demand adjustment apparatus of 1st Embodiment, an electric power supplier, and an electric power consumer. The figure explaining the structure of the electric power supply-and-demand system comprised by the electric power supply-and-demand adjustment apparatus of 2nd Embodiment, an electric power supplier, and an electric power consumer. The figure explaining the structure of the electric power supply-and-demand system comprised by the electric power supply-and-demand adjustment apparatus of 3rd Embodiment, an electric power supplier, and an electric power consumer.

<First Embodiment>
The configuration of the power supply and demand adjustment apparatus 30A (30) according to the first embodiment will be described below with reference to the drawings. The power supply / demand adjustment device 30 </ b> A is a device that adjusts the power supply / demand between the power supplier 10 and the power consumer 20.

FIG. 1 is a diagram illustrating a configuration of an electric power supply and demand system S that includes an electric power supply and demand adjustment device 30A, an electric power supplier 10, and two electric power consumers 20 (20A and 20B) according to the first embodiment.
The power supplier 10 is a specific scale electric power company or the like, and has a power generation facility 11 that can supply generated power to the power system 1. In the present embodiment, the power supplier 10 includes a power plant 11 </ b> A and a solar power plant 11 </ b> B connected to the power system 1 as the power generation facility 11. The power plant 11A is a facility with variable power generation, such as a thermal power plant. The power supplied to the power system 1 by the power supplier 10 can be adjusted by adjusting the power generated by the power plant 11A. Further, the solar power plant 11B is a facility in which the generated power cannot be intentionally adjusted and the generated power changes according to the climate. In the present embodiment, the power plant 11A and the solar power plant 11B are integrated into the power generation facility 11 of the power supplier 10.

  Each power consumer 20 </ b> A, 20 </ b> B has a power consumption facility 21 and a private power generation facility 22. The private power generation facility 22 is a facility whose generated power is variable, such as a cogeneration device. Further, in the present embodiment, operation control is performed for the specific power consumer 20 such that the generated power is equal to or lower than the power consumption of the power consumption facility 21 with respect to the private power generation facility 22. That is, the private power generation facility 22 can generate the power consumed by the power consumption facility 21 and cannot supply power to the power system 1. Then, the power consumer 20 covers the insufficient power derived by subtracting the power generated by the private power generation facility 22 from the power consumed by the power consumption facility 21 with the received power from the power system 1. Therefore, the received power from the power system 1 by the power consumer 20 can be adjusted by adjusting the power generated by the private power generation facility 22.

  The power supply / demand adjustment apparatus 30 </ b> A includes generated power detection means 31, reduced power derivation means 33, and supply / demand adjustment means 35. As will be described later, the generated power detection means 31 functions as the “accident detection means D” of the present invention. As shown in FIG. 1, the power supply and demand adjustment apparatus 30 </ b> A of the present embodiment further includes a storage unit 34. The power supply / demand adjustment apparatus 30 can be realized by a general computer. FIG. 1 shows a form in which a computer that realizes a power supply and demand adjustment device 30 is connected to a power supplier 10 and a power consumer 20 through a communication line or the like so as to be communicable.

  The generated power detection means 31 is a device that detects the generated power of the power plant 11A of the power supplier 10 and the generated power of the private power generation facilities 22 of the power consumers 20A and 20B. The accident detection means D realized by using the generated power detection means 31 continuously supplies the generated power of the private power generation facility 22 of the power consumer 20 detected by the generated power detection means 31 to a memory device (not shown) or the like. I remember it. As a result, the accident detection means D can monitor temporal changes in the power generated by the private power generation facilities 22 of the power consumers 20A and 20B. The accident detection means D determines that an accident has occurred in the private power generation facility 22 when the power generated by the private power generation facility 22 has decreased by a predetermined value or more during a unit time. As described above, in the present embodiment, the accident detected by the accident detection means D is generated power such as an unexpected operation stop / output decrease occurring in each of the private power generation facilities 22 of the power consumers 20A and 20B. This is an unplanned decrease, and is separate from the enlightened shutdown / output decrease accompanying inspection and repair of the private power generation facilities 22 of the power consumers 20A and 20B. The accident detection means D can be rephrased as an unplanned decrease detection means for detecting an unplanned decrease in the generated power of the private power generation facilities 22 of the power consumers 20A and 20B.

  The reduced power deriving means 33 derives the generated power of the private power generation facility 22 that decreases due to the accident detected by the accident detecting means D as the reduced generated power. In the present embodiment, the reduced power deriving means 33 continuously stores the generated power of the private power generation facility 22 of the power consumer 20 transmitted from the generated power detection means 31 in a memory device (not shown) or the like. Thus, the accident detection means D can identify the generated power of the private power generation facility 22 before determining that an accident has occurred in the private power generation facility 22. Therefore, the reduced power deriving means 33 can derive that the generated power before the accident is the generated power of the private power generation facility 22 that is reduced due to the accident (that is, the reduced generated power).

  The memory | storage means 34 has memorize | stored the information regarding the power plant 11A of the electric power supplier 10, and the highest electric power generation and the electric power generation cost of the private power generation equipment 22 of electric power consumers 20A and 20B. The information related to the power generation cost may be a cost required to generate unit power, or may be a cost that is requested as a price for generating unit power commercially (that is, a power selling unit price). The information relating to the power generation cost is stored in the storage unit 34 by receiving in advance from the power supplier 10 and the power consumers 20A and 20B.

  The supply and demand adjustment means 35 supplies both the power generated by the power plant 11A of the power supplier 10 and the power generated by the private power generation facility 22 of the power consumer 20 in order to replenish the reduced power generated by the power reduction derivation means 33. As an adjustment target, power supply processing is performed to adjust at least one of adjustment of generated power by the power plant 11A of the power supplier 10 and adjustment of generated power by the private power generation facility 22 of the power consumer 20.

  Specifically, the supply and demand adjustment means 35 in the power supply process supplies the generated power of the power plant 11A in the power supplier 10 and the power consumer 20 to replenish the reduced generated power derived by the reduced power deriving means 33. No accident has occurred in the power plant 11A and the power consumer 20 in the power supplier 10 so that the total amount of cost increase when increasing the generated power of the private power generation facility 22 in which no accident has occurred in A request to increase the generated power for at least one of the private power generation facilities 22 is determined, and the request to increase the generated power is transmitted to the corresponding power supplier 10 and power consumer 20.

Below, the content of the electric power supply process by the supply and demand adjustment means 35 is demonstrated exemplifying the case where an accident occurs in the private power generation equipment 22 of the electric power consumer 20B.
When an accident occurs in the private power generation facility 22 of the power consumer 20B and the generated power of the private power generation facility 22 exceeds a preset value during a unit time, the decrease in the generated power is generated power detection means. 31. For example, the power generated by the private power generation facility 22 rapidly decreases to zero if the private power generation facility 22 is shut down due to an accident. And the accident detection means D implement | achieved using the generated power detection means 31 determines with the accident having generate | occur | produced in the private power generation equipment 22 of the electric power consumer 20B.

  Next, the reduced power deriving unit 33 derives the generated power of the private power generation facility 22 of the power consumer 20B, which decreases due to the accident detected by the accident detection unit D, as the reduced generated power. Specifically, the reduced power deriving unit 33 continuously stores the generated power of the private power generation facility 22 of the power consumer 20B transmitted from the generated power detection unit 31 to its own memory device (not shown). The accident detection means D can specify the generated power before determining that an accident has occurred in the private power generation facility 22. Therefore, the reduced power deriving means 33 can derive that the generated power before the accident is the generated power of the private power generation facility 22 that is reduced by the accident (that is, the reduced generated power).

  At this time, since an accident has occurred in the private power generation facility 22 of the power consumer 20B, the power generated by the remaining power supplier 10 can be increased in order to supplement the reduced generated power. This is a private power generation facility 22 in which no accident has occurred in the station 11A and the power consumer 20A. Specifically, if the power supplied to the power system 1 is increased by increasing the generated power of the power station 11A of the power supplier 10, the power to the power system 1 can be replenished. Moreover, if the received power from the power grid 1 by the power consumer 20A is decreased by increasing the power generated by the private power generation facility 22 of the power consumer 20A, the power consumer 20 should have been receiving power originally. The electric power becomes surplus electric power in the electric power system 1, and apparently the private power generation facility 22 of the electric power consumer 20 </ b> A replenishes the electric power system 1 with the extra electric power. That is, in order to replenish the reduced generated power, it is necessary to adjust the generated power of the power plant 11A of the power supplier 10 and the generated power of the private power generation facility 22 of the power consumer 20A. The cost associated with power generation at the station 11A and the private power generation facility 22 increases.

  Therefore, the supply and demand adjustment unit 35 generates power from the private power generation facility 22 in which no accident has occurred in the power plant 11A and the power customer 20A in the power supplier 10 in order to replenish the reduced generated power derived by the reduced power deriving unit 33. A request to increase the generated power for at least one of the power plant 11A of the power supplier 10 and the private power generation facility 22 of the power consumer 20A is determined so that the total amount of cost increase when increasing the power is minimized. .

Specifically, the supply and demand adjustment means 35 includes the current generated power obtained from the detection result of the generated power detection means 31 and the storage means for the power plant 11A of the power supplier 10 and the private power generation equipment 22 of the power consumer 20A. From the information on the maximum generated power stored in 34, an increaseable power value indicating how much the generated power can be increased can be derived.
Then, the supply and demand adjustment means 35 is based on the derived power value that can be increased with respect to the power plant 11 </ b> A and the private power generation facility 22, and the information regarding the power generation cost of the power plant 11 </ b> A and the private power generation facility 22 that is stored in the storage means 34. The power generation of the power generation facility 11A of the power supplier 10 and the power generation facility 22 of the power consumer 20A can be realized by combining the increase in power generation by the power plant 11A and the private power generation facility 22 to share the reduced power generation. It is determined whether the total amount of cost increase when increasing is minimized. That is, the supply and demand adjustment means 35 determines the increase value of the generated power required for the power plant 11A of the power supplier 10 and the private power generation facility 22 of the power consumer 20 (that is, the request for increase of the generated power) to supply power. The reduction request of the generated power reflecting the increase value of the generated power is transmitted to at least one of the person 10 and the power consumer 20. The request for increasing the generated power to the power supplier 10 and the power consumer 20 can be transmitted via a communication line or the like in the form of remote control information in which the power plant 11A and the private power generation facility 22 are directly controlled.

  When the power supplier 10 and the power consumer 20 </ b> A perform the increase adjustment of the generated power according to the increase request of the generated power as described above, the increase in the power supplied to the power system 1 by the power supplier 10 and the power Generation | occurrence | production of the surplus electric power in the electric power grid | system 1 with the reduction | decrease of the received electric power from the electric power grid | system 1 by the consumer 20A is implement | achieved. As a result, the reduced electric power generated by the private power generation facility 22 of the electric power consumer 20B where the accident has occurred is replenished.

  As described above, the accident detection means D detects an accident in the private power generation facility 22, and the reduced power deriving means 33 derives the generated power (that is, the reduced generated power) of the private power generation facility 22 that decreases due to the accident. It is possible to grasp how much power supply is required due to the accident of the private power generation facility 22. Then, in order for the supply and demand adjustment means 35 to replenish the reduced generated power, both the power generated by the power plant 11A in the power supplier 10 and the power generated by the private power generation facility 22 in which no accident has occurred in the power consumer 20 are generated. As an adjustment target, power supply processing is performed to adjust at least one of adjustment of generated power by the power plant 11A of the power supplier 10 and adjustment of generated power by the private power generation facility 22 of the power consumer 20. That is, the supply and demand adjustment means 35 does not use only the reserve power secured in advance by the power supplier 10 in order to replenish the reduced generated power, but does not generate an accident in the power consumer 20. The power generation facility 22 can also be used as reserve power. Therefore, since the reserve capacity that the power supplier 10 should secure in advance can be reduced, the cost to be converted to the power consumer 20 side can be reduced, and as a result, the power consumer 20 installs the private power generation facility 22. It will also lead to a relative increase in the benefits gained from installation.

Second Embodiment
The power supply and demand adjustment device 30B (30) of the second embodiment is different from the first embodiment in the configuration of the accident detection means D. In other words, the method for determining which power consumer 20 has the private power generation facility 22 has an accident is different from that of the first embodiment. The power supply and demand adjustment device 30B of the second embodiment will be described below, but the description of the same configuration as that of the first embodiment will be omitted.

  The power supply and demand adjustment device 30B of the second embodiment includes generated power detection means 31, received power detection means 32, reduced power derivation means 33, and supply and demand adjustment means 35. In the present embodiment, as will be described later, the received power detection means 32 functions as the “accident detection means D” of the present invention. In addition, as shown in FIG. 2, the power supply and demand adjustment apparatus 30 </ b> B of the present embodiment further includes a storage unit 34.

  The received power detection means 32 is a device that detects the received power from the power system 1 by each of the power consumers 20A and 20B. The accident detection means D realized by using the received power detection means 32 transmits the received power from the power system 1 by the power consumers 20A and 20B detected by the received power detection means 32 to a memory device (not shown) or the like. Remember me continuously. As a result, the accident detection means D can monitor temporal changes in the received power of the power consumers 20A and 20B. In this case, in each of the power consumers 20A and 20B, for example, when the private power generation facility 22 stops due to an accident and the generated power rapidly decreases, the received power detected by the received power detection means 32 increases rapidly. Therefore, the accident detection means D determines that an accident has occurred in the private power generation facility 22 when the received power of the power consumers 20A and 20B increases by a preset value or more during a unit time.

  The reduced power deriving means 33 derives the generated power of the private power generation facility 22 that decreases due to the accident detected by the accident detecting means D as the reduced generated power. The reduced power deriving means 33 continuously stores the generated power of the private power generation facilities 22 of the power consumers 20A and 20B transmitted from the generated power detection means 31 in a memory device (not shown) or the like. Thus, it is possible to know the generated power of the specific private power generation facility 22 before the accident detection means D determines that an accident has occurred in the specific private power generation facility 22. Therefore, the reduced power deriving means 33 can derive that the generated power before the accident is the generated power of the private power generation facility 22 that is reduced due to the accident (that is, the reduced generated power).

  In this way, the power supply and demand adjustment device 30B of the present embodiment reduces the generated power due to the occurrence of an accident at the private power generation facility 22 of the specific power consumer 20 and the accident at the specific private power generation facility 22. Can be specified.

<Third Embodiment>
In the power supply and demand adjustment device 30C (30) of the third embodiment, the configuration of the accident detection means D is different from those of the first embodiment and the second embodiment. In other words, the method for determining which power consumer 20 own power generation facility 22 has an accident is different from the first embodiment and the second embodiment. The power supply and demand adjustment apparatus 30C of the third embodiment will be described below, but the description of the same configuration as that of the above embodiment will be omitted.

  The power supply / demand adjustment apparatus 30C of the third embodiment includes generated power detection means 31, received power detection means 32, reduced power derivation means 33, and supply / demand adjustment means 35. In the present embodiment, as will be described later, the generated power detection means 31 and the received power detection means 32 function as the “accident detection means D” of the present invention. In addition, as shown in FIG. 2, the power supply and demand adjustment apparatus 30 </ b> B of the present embodiment further includes a storage unit 34.

In the power consumer 20, operation control is performed on the private power generation facility 22 such that the generated power is less than or equal to the power consumption of the power consumption facility 21 (that is, operation control that avoids reverse power flow). In this case, when the power consumption of the power consumption facility 21 decreases, the power generation of the private power generation facility 22 decreases accordingly. Therefore, even if the generated power of the private power generation facility 22 decreases rapidly, there is a possibility that this is a normal operation performed in association with the rapid decrease of the power consumption of the power consumption facility 21. However, if the power consumption of the power consumption facility 21 has not decreased rapidly, control that causes the power generation of the private power generation facility 22 to decrease rapidly is not performed.
Therefore, in the present embodiment, the accident detection means D is provided with the private power generation facility 22 in which the power generated by the private power generation facility 22 decreases by a predetermined first set value or more during a unit time. When the received power of the power consumer 20 increases by a preset second set value or more during the same unit time, it is determined that an accident has occurred in the private power generation facility 22.

  The reduced power deriving means 33 derives the generated power of the private power generation facility 22 that decreases due to the accident detected by the accident detecting means D as the reduced generated power. The reduced power deriving means 33 continuously stores the generated power of the private power generation facilities 22 of the power consumers 20A and 20B transmitted from the generated power detection means 31 in a memory device (not shown) or the like. Thus, it is possible to know the generated power of the specific private power generation facility 22 before the accident detection means D determines that an accident has occurred in the specific private power generation facility 22. Therefore, the reduced power deriving means 33 can derive that the generated power before the accident is the generated power of the private power generation facility 22 that is reduced due to the accident (that is, the reduced generated power).

  In this way, the power supply and demand adjustment apparatus 30C of the present embodiment specifies that an accident has occurred in the private power generation facility 22 of the specific power consumer 20, and the accident in the specific private power generation facility 22 It is possible to perform control such that the reduced generated power due to is replenished.

<Another embodiment>
<1>
In the above-described embodiment, the power supply / demand adjustment apparatus 30 is exemplified as the power supply / demand system S configured separately from the power supplier 10 and the power consumer 20, but the configuration of the power supply / demand system S can be changed as appropriate. . For example, the power supply and demand adjustment device 30 may be provided integrally with the power supplier 10. That is, the power supplier 10 such as a specific scale electric power company may perform the power supply process as described above.
Moreover, in the said embodiment, the electric power supplier 10 has one power plant 11A and one solar power plant 11B as the power generation equipment 11, and the electric power consumer 20 has one power consumption equipment 21 and 1 Although the example which has the private power generation equipment 22 of a machine was demonstrated, the structure content of the power generation equipment 11 which the electric power supplier 10 has, and the power consumption equipment 21 which the electric power consumer 20 has, and the structure content of the private power generation equipment 22 are changed suitably. Is possible.
Furthermore, although the electric power supply and demand system S demonstrated the example which has the one electric power supplier 10 and the two electric power consumers 20 in the said embodiment, the number of the electric power suppliers 10 and the electric power consumers 20 can be changed suitably. It is. For example, the power supply and demand system S includes one or a plurality of power suppliers 10, one or a plurality of power consumers 20, and a power supply and demand adjustment device 30, and the power supply and demand adjustment device 30 is the power supplier. 10 and the power consumer 20 may perform the power supply process.

<2>
In the said embodiment, the memory | storage means 34 memorize | stores beforehand the information regarding power generation cost from the electric power supplier 10 and the electric power consumer 20, and the demand-and-supply adjustment means 35 refers to the information memorize | stored in the memory | storage means 34. Although an example in which the power supply process is performed has been described, information on the power generation cost may be collected by making an inquiry from the power supply and demand adjustment device 30 to the power supplier 10 and the power consumer 20 as necessary.

<3>
In the above embodiment, the supply and demand adjustment means 35 performs at least one of adjustment of generated power by the power generation facility 11 of the power supplier 10 and adjustment of generated power by the private power generation facility 22 of the power consumer 20 in the power supply process. Although the example to perform is demonstrated, adjustment of the electric power generated by the private electric power generation equipment 22 of the electric power consumer 20 may be utilized for the said electric power supply process. In this case, since the power supply process is performed using at least the adjustment of the amount of received power by the power consumer 20, the generated power of the power generation facility 11 of the power supplier 10 used when performing this power supply process is used. It can be reduced relatively.

<4>
In the above-described embodiment, the case where the generated power becomes zero by stopping the operation of the private power generation facility 22 due to an accident is exemplified. However, the generated power of the private power generation facility 22 suddenly decreases to, for example, the minimum generated power. It does not matter.

  INDUSTRIAL APPLICABILITY The present invention can be used for a power supply and demand adjustment device that can compensate for the reduced generated power of a private power generation facility even if the private power generation facility of the power consumer is stopped due to an accident.

DESCRIPTION OF SYMBOLS 1 Electric power system 10 Electric power supplier 11 Electric power generation equipment 20 Electric power demander 21 Electric power consumption equipment 22 Private power generation equipment 30 Electric power supply and demand adjustment apparatus 31 Electric power generation detection means 32 Received electric power detection means 35 Supply and demand adjustment means D Accident detection means

Claims (3)

A power supplier having a power generation facility capable of supplying generated power to the power system, a power consumption facility and a private power generation facility, and subtracting the power generated by the private power generation facility from the power consumption by the power consumption facility A power supply and demand adjustment device that adjusts the supply and demand of power with a power consumer that covers the insufficient power to be received with the received power from the power system,
Accident detection means for detecting an accident of the private power generation facility;
Reduced power deriving means for deriving the generated power of the private power generation facility where the accident has occurred as a reduced generated power, which is reduced by the accident detected by the accident detecting means,
In order to replenish the reduced generation power, both the power generated by the power generation facility in the power supplier and the power generation by the private power generation facility in which no accident has occurred in the power consumer are subject to adjustment, It performs power supply processing for causing at least one of the power generation adjustment by that originating Denden force to equipment and adjustment of generated power the accident in the power consumer is by the private power generation facility is not occurred in the electric power supplier Supply and demand adjustment means,
In the accident detection means, the generated power of the private power generation facility decreases by a predetermined first set value or more during a unit time, and the received power of the power consumer provided with the private power generation facility is A power supply and demand adjustment device that determines that an accident has occurred in the private power generation facility when it has increased by a predetermined second set value or more during the same unit time .   In the power supply process, the supply and demand adjustment means increases the generated power of the power generation facility in the power supplier and the private power generation facility in which the accident has not occurred in the power consumer in order to supplement the reduced generated power. A request to increase the generated power to at least one of the power generation facility at the power supplier and the private power generation facility where the accident has not occurred at the power consumer so that the total amount of cost increase when the The power supply and demand adjustment apparatus according to claim 1, wherein a request to increase the generated power is transmitted to the corresponding power supplier and the power consumer. The power supply / demand adjustment apparatus according to claim 1, wherein the supply / demand adjustment unit adjusts the generated power by a private power generation facility in which at least the accident has not occurred in the power consumer in the power supply process.

Images