JP2013251931A - Supply/demand balance support device and supply/demand balance evaluation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a supply/demand balance support device capable of adjusting a supply/demand plan such that an electric power supplier has power supply remaining power.SOLUTION: A supply/demand balance support device 10 includes invitation information notification means 11 of giving notice of invitation information for inviting a scheduled person to take an action to reduce scheduled demand electric power among electric power buyers 2 when scheduled supply electric power from an electric power supplier 1 is first necessary electric power less than the scheduled demand electric power of the electric power buyers 2, application information reception means 12 of receiving application information from the electric power buyers 2, determination means 13 of determining whether total scheduled reduction in demand electric power that the application information reception means 12 receives is equal to or larger than the first necessary electric power, and adjustment plan determination means 14 of determining an adjustment plan to make supply/demand adjustments corresponding to the total scheduled reduction in demand electric power when the total scheduled reduction in demand electric power that the application information reception means 12 receives is equal to or larger than the first necessary electric power.

Description

  In the power sales system in which the electric power company sells electric power to the electric power purchaser by entrusting the electric power supplied from the electric power supplier to the electric power purchaser using the transmission and distribution system. When preparing a supply and demand plan between a power supplier and a power purchaser for the purpose of achieving the same amount of constraints simultaneously in the transmission and distribution system, the power supplier in the time zone to be adjusted in the future It is related with the supply-and-demand adjustment assistance apparatus which adjusts a supply-and-demand plan so that the planned supply power from may not run short compared with the planned demand power by a power purchaser.

  As described in Patent Document 1, a conventional supply and demand plan is designed to supply power so that the total predicted demand power of the power purchaser matches the total planned supply power of the power supplier. It was intended to create a supply and demand plan between consumers and power purchasers. Then, when it is predicted that the total predicted power demand of the power purchaser exceeds the total scheduled power supply of the power supplier, a plan change is made to increase the planned power supply by the power supplier.

JP 2004-48852 A

In the conventional supply and demand plan, a change that increases the planned supply power of the power supplier is performed, but the predicted demand power by the power purchaser is not changed.
Therefore, even if the total estimated demand power of the power purchaser becomes very large, the power supplier needs to have a large supply capacity so that the planned supply power exceeding the total predicted demand power can be recorded. was there. Otherwise, it will not be possible to devise a supply and demand plan in which the total planned power supply of the power supplier is greater than or equal to the total expected power demand of the power purchaser, which inevitably results in a power shortage. It was.

  Furthermore, at the planning stage of the supply and demand plan, even if the total planned power supply of the power supplier can be greater than or equal to the total predicted power demand of the power purchaser, suddenly on the day when the power supply and demand is actually performed, Electric power may increase. In that case, when the actual power demand by the power purchaser exceeds the actual power supply by the power supplier, the electric power company and the power supplier are expensive ( It was necessary to receive a supply of expensive electricity.

  In this way, adjusting the power supply / demand balance by only the power supplier has a lack of economic rationality.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a supply and demand adjustment support apparatus capable of adjusting a supply and demand plan while leaving a surplus power supply capacity by an electric power supplier, and the supply and demand adjustment support thereof. It is in providing a supply and demand adjustment evaluation device that evaluates whether or not the adjustment plan determined by the device has been properly implemented.

The characteristic configuration of the supply and demand adjustment support apparatus according to the present invention for achieving the above object is that the electric power company consigns the power supplied from the power supplier to the power purchaser using the transmission and distribution system, Supply and demand between the power supplier and the power purchaser for the purpose of achieving the same amount of restrictions in the transmission and distribution system in the power sales system in which power is sold to the power purchaser. Supply / demand adjustment support for adjusting the supply / demand plan so that the planned supply power from the power supplier does not become deficient in comparison with the planned demand power by the power purchaser in a future adjustment target time interval when creating a plan in advance A device,
In the adjustment target time section, the planned supply power from the power supplier is insufficient compared to the planned demand power by the power purchaser, and the first required power necessary to solve the shortage is predicted. At the time, in order to recruit from among the power purchasers, the recruitment information including at least information related to the adjustment target time interval is notified to the power purchasers in order to recruit those who are scheduled to perform the act of reducing the planned demand power. Recruitment information notification means,
Application information receiving means for receiving application information including information on the adjustment target time section and the planned reduction in demand power from the power purchaser applying for the recruitment information;
A determination unit that determines whether or not a total reduction amount of the demand power received by the application information reception unit is equal to or greater than the first required power;
Supply / demand adjustment corresponding to the total planned power reduction amount when the determination unit determines that the total planned power reduction amount received by the application information receiving unit is equal to or greater than the first required power And an adjustment plan determination means for determining an adjustment plan to be performed.

  According to the above characteristic configuration, the recruitment information notifying means notifies the power purchaser of the solicitation information including at least information related to the adjustment target time section, and the application information receiving means applies for the solicitation information. Application information including information on the adjustment target time section and the planned decrease in demand power is received from the coming power purchaser. Then, the determination unit determines whether the total reduction in demand power received by the application information reception unit is equal to or greater than the first required power, and the planned reduction in demand power received by the application information reception unit. When the total of the power demands is equal to or greater than the first required power, the adjustment plan determination means determines an adjustment plan for which supply and demand adjustment corresponding to the total of the planned decrease in the demand power is performed. In this way, accepting a decrease in the predicted demand power by voluntary application from the power purchaser himself, based on the decrease in the predicted demand power (that is, the above-mentioned planned decrease in demand power) for the supply and demand plan Adjustments can be made.

Here, since the above-mentioned planned decrease in demand power is due to voluntary application from the power purchaser himself, it can be said that the probability that the demand power will actually be reduced is high. First, for the purpose of reducing the planned demand power by the power purchaser, the supply and demand plan is adjusted so that the planned power supply from the power supplier becomes equal to the planned demand power from the power purchaser. It is not intended to increase the planned supply power by the person. That is, the power supply capacity of the power supplier is positively left.
Therefore, it is possible to provide a supply and demand adjustment support device that can adjust the supply and demand plan while leaving a surplus power supply capacity by the power supplier.

  According to another characteristic configuration of the supply and demand adjustment support apparatus according to the present invention, the adjustment plan determination unit is configured such that the determination unit determines that the total reduction amount of the demand power received by the application information reception unit is the first required power. When it is determined that the power supply is insufficient, the adjustment plan is determined in which the supply and demand adjustment is performed to cover the second necessary power necessary for resolving the shortage by increasing the planned supply power of the power supplier. In the point.

  According to the above characteristic configuration, even if the total amount of planned power demand reduction by the power purchaser accepted by the application information acceptance means is insufficient with respect to the first required power, the planned power supply of the power supplier is increased. Thus, an adjustment plan for supply and demand adjustment for the purpose of eliminating the shortage is determined. In other words, first, supply and demand adjustment is performed by a change in the planned demand power by the power purchaser, and only the insufficient power that could not be resolved by the change in the planned demand power by the power purchaser is scheduled to be supplied by the power supplier. It is eliminated by changing the power increase. As a result, the planned supply power of the power supplier that needs to be increased can be reduced.

  Still another characteristic configuration of the supply and demand adjustment support device according to the present invention is that the application information receiving unit is configured to request the demand for each power purchaser in order from the time when the application purchaser has applied for the recruitment information. The total power reductions are summed, and the application for the recruitment information is closed when the total value of the planned power reductions reaches the first required power.

  According to the above characteristic configuration, the application information receiving means closes the application for the recruitment information when the total value of the planned reduction in demand power reaches the first required power as described above, so It is possible to prevent the reduction from being made more than necessary.

  Still another characteristic configuration of the supply and demand adjustment support device according to the present invention is that the power purchaser includes a power consumption device and a private power generation device operable by the power purchaser, and the power consumption by the power consumption device and the private power generation device The demand power can be adjusted by adjusting at least one of the generated power by the above.

  According to the above characteristic configuration, when the power consumption by the power consuming device is reduced, the power demand by the power purchaser is reduced, and when the power generated by the private power generation device is increased, the power demand by the power purchaser is reduced. In other words, the power purchaser has a plurality of means (power consuming device and private power generation device) that can be used to reduce the demand power, so that the power demand is scheduled compared to the case where only one means is provided. A large reduction range can be secured.

  The characteristic configuration of the supply and demand adjustment evaluation device according to the present invention is such that, after the sale of electric power to the power purchaser is performed on a sales day in accordance with the supply and demand plan adjusted by the supply and demand adjustment support device, in the adjustment target time interval It is the point provided with the satisfaction degree deriving means for deriving the degree to which the actual reduction amount of the demand power is satisfied with respect to the planned reduction amount of the demand power in the adjustment target time section according to the application information.

Since the adjustment plan determined by the supply / demand adjustment support apparatus includes only the planned decrease in the future power demand applied by the power purchaser, the power purchaser actually reduces the power demand according to the planned decrease. Whether it is unclear.
However, according to the supply and demand adjustment evaluation device according to this characteristic configuration, after the sale of power to the power purchaser is performed on the sales day, the actual degree of decrease in power demand in the adjustment target time section is calculated. The degree to which the planned reduction in power demand in the adjustment target time section related to the application information is satisfied is derived. That is, it is possible to determine whether or not the power purchaser has actually reduced the demand power according to the planned reduction of the demand power applied by the power purchaser, or to evaluate according to the derived satisfaction degree.

  Another characteristic configuration of the supply and demand adjustment evaluation apparatus according to the present invention is that the satisfaction degree deriving means calculates the demand power in the adjustment target time section on the sales day from the reference demand power in the adjustment target time section. A value obtained by subtracting an actual value is derived as an actual reduction amount of the demand power in the adjustment target time interval.

The actual decrease in power demand in the adjustment target time section is based on the power demand that would be measured if the power purchaser did not attempt to reduce the power demand within the planned power reduction determined in the application information. This corresponds to a value obtained by subtracting the demand power measured when the power purchaser performs the reduction of the demand power within the planned reduction range determined by the application information. However, if the power purchaser tries to reduce the power demand within the planned decrease determined in the application information, it is impossible to measure the power demand when no power demand reduction is attempted. As a result, it is difficult to derive the actual reduction amount of the demand power in the adjustment target time section.
However, according to this feature configuration, the power purchaser adopts the reference demand power in the adjustment target time section as corresponding to the demand power in the case where the power purchaser has not tried to reduce the demand power at all. From the comparison of the reference demand power at the actual value of the demand power in the adjustment target time section on the sale date, it can be derived as the actual decrease in demand power in the adjustment target time section.

Another characteristic configuration of the supply and demand adjustment evaluation device according to the present invention is that the reference demand power in the adjustment target time interval is the demand in the adjustment target time interval for each of a plurality of days before the sales date. Is the average of the actual value of power,
In the adjustment target time interval of each of the plurality of days, when the power purchase based on the application information has been reduced by the power purchaser, the actual reduction amount of the demand power in the adjustment target time interval is There is no point in deriving the reference demand power in the adjustment target time section.

  According to the above characteristic configuration, since the reference demand power in the adjustment target time section is derived as an average value of the actual value of the demand power in each of the adjustment target time sections on a plurality of days before the sales target day. The reliability of the standard power demand can be ensured.

In addition, in each adjustment object time interval used for the derivation of the average value, if the power purchase is reduced by the power purchaser based on the application information, the adjustment object time interval measured at that time The actual value of power demand is not the power demand that would be measured if the power purchaser did not attempt to reduce the power demand within the planned reduction determined in the application information, but the adjustment time interval This includes the actual decrease in power demand. That is, if the above-mentioned reference demand power is derived using the actual value of the demand power when the demand power is reduced based on the application information, the reliability of the reference demand power is lowered.
However, according to this feature configuration,
In each adjustment target time section of the above-mentioned multiple days, if the decrease in demand power based on the application information has been made by the power purchaser, it is assumed that there was no actual decrease in demand power in the adjustment target time section, Since the reference demand power in the adjustment target time section is derived, the reliability of the derived reference demand power value can be increased.

It is a figure explaining the structure of the electric power sales system with which a supply-and-demand adjustment assistance apparatus is provided. It is a figure explaining the structure of the electric power sales system provided with a supply-and-demand adjustment support apparatus and a supply-and-demand adjustment evaluation apparatus. It is a figure which shows the derivation | leading-out example of the actual reduction width of the demand power in the adjustment object time area. It is a figure which shows the derivation | leading-out example of the reference demand power in the adjustment object time area by an electric power purchaser.

<First Embodiment>
Hereinafter, the supply and demand adjustment support device 10 of the first embodiment will be described with reference to the drawings. FIG. 1 is a diagram illustrating the configuration of an electric power sales system in which the supply and demand adjustment support device 10 is used. As shown in FIG. 1, the supply and demand adjustment support apparatus 10 is configured such that an electric power supplier 4 uses electric power supplied from an electric power supplier 1 by using, for example, a power transmission / distribution system 3 of another electric power supplier 4. 2 is used in an electric power sales system in which electric power is sold to the electric power purchaser 2. For example, the electric power company 4 is a general electric power company, a specific scale electric power company, a specific electric power company, and the like, and the power supplier 1 is a business that wholesales electric power to the electric power company 4.

  When this supply and demand adjustment support apparatus 10 creates in advance a supply and demand plan between the power supplier 1 and the power purchaser 2 for the purpose of achieving the same amount of restriction in the transmission and distribution system 3, In the future adjustment target time section (for example, for a specific 30 minutes), the supply and demand plan is adjusted so that the planned supply power from the power supplier 1 does not become insufficient compared to the planned demand power from the power purchaser 2. In the present embodiment, the electric power company 4 creates in advance a supply and demand plan between the power supplier 1 and the power purchaser 2 for the purpose of achieving the same amount of restrictions in the transmission and distribution system. . As a result, there is a shortage of planned supply power from the power supplier with respect to the planned demand power by the power purchaser in a specific adjustment target time section on a specific future day (for example, the next day) that is the target of supply and demand planning. It becomes clear.

  Then, in the supply and demand plan created by the electric utility 4, the planned supply power from the power supplier 1 is insufficient compared to the planned demand power from the power purchaser 2, and the first required power necessary to solve the shortage Is predicted, the shortage information regarding the first required power is transmitted from the electric power company 4 to the supply and demand adjustment support device 10. Then, as will be described later, the supply and demand adjustment support device 10 has at least one of the possibilities of a response to decrease the planned demand power of the power purchaser 2 and a response to increase the planned supply power of the power supplier 1. explore.

  The supply and demand adjustment support apparatus 10 includes recruitment information notification means 11, application information reception means 12, determination means 13, and adjustment plan determination means 14. The supply and demand adjustment support apparatus 10 may further include a storage unit 15 described later. Each of the means included in the supply and demand adjustment support apparatus 10 can be realized by an information processing function, an information storage function, an information input / output function, an external information communication function, and the like provided in one or more computers.

  The recruitment information notifying means 11 recruits, from the power purchaser 2, a person who is scheduled to perform an act of reducing the planned demand power when the first required power is predicted in the supply and demand plan created by the electric power company 4. In order to do so, the power purchaser 2 is notified of recruitment information including at least information related to the adjustment target time interval.

  For example, in the four adjustment target time intervals (30 minutes) between time 15:00 and time 17:00 on the next day, the planned supply power from the power supplier 1 is insufficient compared with the planned demand power from the power purchaser 2 Then, when the first required power necessary for resolving the shortage is predicted, the recruitment information notifying unit 11 reads the contact information (for example, an e-mail address) of the power purchaser 2 from the storage unit 15. Then, after specifying the adjustment target time section in the contact information, the recruitment information regarding the solicitation for demand power reduction is notified. For example, regardless of the magnitude of the first required power, the amount of reduction in demand power is as follows: “Recruiting demand power every 30 minutes between time 15:00 and time 17:00 on the next day” The power purchaser 2 may be notified of recruitment information that does not specify the power.

  Alternatively, the recruitment information may include information related to the reduction range of the demand power in addition to the information related to the adjustment target time interval. For example, when the first required power is 300 kW, the first required power is “recruited 30 kW demand power reduction every 30 minutes between the time 15:00 and the time 17:00 on the next day”. The power purchaser 2 may be notified of the recruitment information by designating a reduction range of 30 kW obtained by dividing. Or, simply recruiting information for recruiting the total amount of the first required power, such as “we will solicit a 300 kW reduction in demand every 30 minutes between 15:00 and 17:00 on the next day” The power purchaser 2 may be notified. Furthermore, information regarding the contact information of the supply / demand adjustment support device 10 for reply (application), which will be described later, can also be notified.

  Thereafter, the application information receiving means 12 receives application information including information on the adjustment target time section and the planned decrease in demand power from the power purchaser 2 who applies for the application information. For example, among the power purchasers 2 who have received the recruitment information, the power purchaser 2 who thinks that his / her power demand may be reduced during the adjustment target time section is the contact information for reply (application) On the other hand, it applies by specifying the adjustment target time section and the planned decrease in demand power. As a result, the application information receiving means 12 has applied for a reduction in demand power under which conditions by which power purchaser 2 (that is, how much demand power is expected to be reduced in which adjustment target time section). Can know. The application information receiving unit 12 can store the received information in the storage unit 15.

  FIG. 1 illustrates the case where the power purchaser 2 includes the power consumption device 2a and the private power generation device 2b that can be operated by itself. However, the power purchaser 2 includes at least the power consumption device 2a. Just do it. And the electric power purchaser 2 can reduce demand electric power (namely, electric power purchased from the electric power provider 4) by performing power saving which reduces the electric power consumption of the electric power consumption apparatus 2a. Further, if the power purchaser 2 has the private power generation device 2b, the power transmission / distribution system 3 can be increased by increasing the power generation of the private power generation device 2b without reducing the power consumption of the power consumption device 2a. It is possible to reduce the power demand purchased through the network. The power purchaser 2 may perform a decrease in the power consumption of the power consumption device 2a and an increase in the generated power of the private power generation device 2b.

  However, if the power purchaser 2 includes both the power consumption device 2a and the private power generation device 2b, an adjustment that reduces the power consumption by the power purchaser 2 by reducing the power consumption by the power consumption device 2a, and Both of the adjustments for reducing the power demand by the power purchaser 2 can be performed by increasing the power generated by the private power generator 2b. That is, since the power purchaser 2 has a plurality of means (power consumption device 2a and private power generation device 2b) that can be used to reduce the demand power, the demand purchaser 2 is more demanding than the case where only one means is provided. A large reduction in power can be secured.

In the present embodiment, the application information receiving means 12 sums up the planned decrease in demand power for each power purchaser 2 in the order of early application from the power purchaser 2 with respect to the recruitment information. When the total value of the planned decrease reaches the first required power, the application for the recruitment information is closed.
For example, as described above, recruitment information that does not specify the amount of decrease in demand power, such as “recruiting demand power reduction every 30 minutes between time 15:00 and time 17:00 on the next day” And when the first required power is 300 kW as described above, “demand power decrease of 300 kW every 30 minutes between time 15:00 and time 17:00 on the next day” When the recruitment information for soliciting the total amount of the first required power is notified to the power purchaser 2, for example, the application information receiving means 12 has a planned reduction in demand power of 100 kW, for example. When certain application information is received from the three power purchasers 2, the application for the application information is closed because the total value of the planned reduction in demand power reaches the first required power at that time.

  Alternatively, as described above, when the first required power is 300 kW, the recruitment information that “30 kW demand power reduction is recruited every 30 minutes between the time 15:00 and the time 17:00 on the next day” When notified to the power purchaser 2, when the number of applicants for the reduction in demand power reaches 10 with a planned reduction width of 30 kW, the application information receiving means 12 determines the total value of the planned reduction in demand power as the first. The application for the recruitment information will be closed as the required power is reached.

  As described above, the application information receiving unit 12 is configured to close the application for the recruitment information when the total value of the planned reduction amount of the demand power reaches the first required power, thereby reducing the demand power by the power purchaser 2. Can be done more than necessary.

  Next, the determination unit 13 determines whether or not the sum of the planned decrease in demand power received by the application information reception unit 12 is equal to or greater than the first required power. As described above, when the application information receiving unit 12 closes the application for the recruitment information because the total value of the planned decrease in demand power has reached the first required power, the total decrease in demand power is Although it is sufficient to cover the first required power, it may happen that the total reduction in demand power in the application information from the power purchaser 2 is insufficient to cover the first required power. . Therefore, for example, when the power purchaser 2 has applied for a reduction in demand power in a specific adjustment target time section and stores the information in the storage means 15, the determination means 13 determines the expected reduction in demand power. A total is derived, and it is determined whether the total value has reached the first required power.

The adjustment plan determination unit 14 determines that the total reduction in demand power received by the application information reception unit 12 is greater than or equal to the first required power when the determination unit 13 determines that the planned reduction in the demand power received. Determine the adjustment plan for which the supply and demand adjustment will be performed.
However, when the determination unit 13 determines that the total amount of planned reduction in demand power received by the application information reception unit 12 is insufficient with respect to the first required power, the adjustment plan determination unit 14 eliminates the shortage. The adjustment plan in which the supply and demand adjustment that covers the second required power required for the power supply 1 by increasing the planned power supply of the power supplier 1 is determined. Then, the supply / demand adjustment support device 10 notifies one of the power suppliers 1 of the adjustment target time interval and the second required power.

  As described above, the supply and demand adjustment support apparatus 10 according to the present embodiment accepts a decrease in predicted demand power due to voluntary application from the power purchaser 2 itself, and reduces the predicted demand power with respect to the supply and demand plan ( That is, it is possible to make adjustments based on the above-described planned decrease in demand power). Here, the above-mentioned planned decrease in demand power is due to a voluntary application from the power purchaser 2 itself, so it can be said that there is a high probability that the demand power will actually be reduced. First, for the purpose of reducing and changing the planned demand power by the power purchaser 2, the supply and demand plan is adjusted so that the planned supply power from the power supplier 1 becomes equal to the planned demand power from the power purchaser 2. The increase change of the planned supply power by the power supplier 1 is not aimed. That is, the power supply surplus by the power supplier 1 is positively left. Therefore, it is possible to provide a supply and demand adjustment support device that can adjust the supply and demand plan while leaving a surplus power supply capacity by the power supplier.

  Furthermore, even if the sum of the planned decrease in demand power by the power purchaser 2 received by the application information receiving means 12 is insufficient with respect to the first required power, the planned supply power of the power supplier 1 is increased next. Thus, an adjustment plan for adjusting supply and demand for the purpose of eliminating the shortage is determined. That is, first, the supply and demand adjustment is performed by the change change of the planned demand power by the power purchaser 2, and only the insufficient power that could not be resolved by the decrease change of the planned demand power by the power purchaser 2 is the power supplier 1. This is resolved by changing the planned supply power. As a result, it is possible to reduce the planned power supply of the power supplier 1 that needs to be increased and changed.

Second Embodiment
What is described in the second embodiment is a supply and demand adjustment evaluation apparatus 20 that evaluates whether or not the adjustment plan determined by the supply and demand adjustment support apparatus 10 described in the first embodiment has been appropriately implemented by the power purchaser 2. is there. Since the adjustment plan determined by the supply and demand adjustment support apparatus 10 includes the planned reduction amount of the future demand power applied by the power purchaser 2, the power purchaser 2 actually reduces the demand power according to the planned reduction amount. It is unclear whether or not Therefore, the supply and demand adjustment evaluation apparatus 20 evaluates whether or not the power purchaser 2 has actually reduced the power demand within the planned reduction range, as will be described later.

FIG. 2 is a diagram illustrating the configuration of an electric power sales system in which the supply and demand adjustment support device 10 and the supply and demand adjustment evaluation device 20 are provided.
The power supply / demand adjustment evaluation device 20 performs the power demand in the adjustment target time section after the power purchaser 2 is sold on the sales day according to the power supply / demand plan adjusted by the power supply / demand adjustment support device 10. Is provided with a degree-of-satisfaction deriving means 21 for deriving the degree of satisfaction of the actual amount of decrease with respect to the planned amount of decrease in demand power in the adjustment target time interval related to the application information. In the present embodiment, the satisfaction degree deriving means 21 obtains a value obtained by subtracting the actual value of the demand power in the adjustment target time section on the sale date from the reference demand power in the adjustment target time section. It is derived as the actual decrease in power demand in the time interval. The supply and demand adjustment evaluation device 20 can be realized by one or a plurality of computers or the like, similar to the supply and demand adjustment support device 10.

FIG. 3 is a diagram illustrating a derivation example of the actual reduction amount of the demand power in the adjustment target time section.
FIG. 3 shows an example of deriving the actual reduction amount of the demand power in the four adjustment target time intervals (each 30 minutes) between the time 15:00 and the time 17:00. In this example, a case will be described in which a specific power purchaser 2 has applied for a reduction in demand power with a planned reduction width of 30 kW for all four adjustment target time intervals. In FIG. 3, the actual value of demand power is indicated by a solid line, the reference demand power is indicated by a broken line, and the value obtained by subtracting the planned decrease from the reference demand power is indicated by a one-dot chain line.

  The satisfaction degree deriving means 21 derives the reference demand power in each adjustment target time section applied by the power purchaser 2. This reference demand power is the demand power predicted when the power purchaser 2 does not reduce the demand power within the planned reduction determined by the application information, that is, the power consumption as usual in the power consumption device 2a. Can be considered to correspond to the predicted power demand when the normal power generation operation is performed in the private power generator 2b. In the present embodiment, the reference demand power is an average value of the actual value of the demand power in each adjustment target time interval on a plurality of days before the power sale date. The storage means 22 stores the past demand power of each power purchaser 2 for each adjustment target time section. Therefore, the sufficiency degree deriving unit 21 can read out information on the past demand power of the specific power purchaser 2 stored in the storage unit 22 and derive the reference demand power.

FIG. 4 is a diagram illustrating a derivation example of the reference demand power in the adjustment target time section by the power purchaser 2. In the example shown in FIG. 4, the average value of the actual value of the demand power in each adjustment target time section for the past three days is set as the reference demand power. In FIG. 4, the actual value of the past demand power is indicated by a solid line, and the derived reference demand power value is indicated by a broken line.
4 will be described in detail. In order to derive the reference demand power for the adjustment target time interval on Thursday of the next day at the night of Wednesday, each adjustment for the three days prior to Thursday (Wednesday, Tuesday, Monday) The average value of the actual value of the demand power in the target time section is set as the reference demand power. In deriving the reference demand power, an average value of the actual values of the demand power on the day having the same attribute is derived. In this example, since the standard demand power for the day when the attribute is a weekday is derived, similarly, the average value of the actual value of the demand power for the past three days (Wednesday, Tuesday, Monday) where the attribute is a weekday is similarly derived. ing.

  The satisfaction degree deriving means 21 can consider at least one attribute when deriving the reference demand power. That is, not only the attributes of weekdays and holidays described above, but also other attributes, for example, attributes of days of the week may be considered together. When considering the attribute of the day of the week in addition to the attributes of weekdays and holidays, the standard demand power of the day whose attributes are weekdays and Thursdays is the actual power demand of Thursday (weekdays) one week before and the Thursday of two weeks before It is derived from an average value of the actual power demand on weekdays and the actual power demand on Thursdays (weekdays) three weeks ago. It is assumed that the storage means 22 stores information related to past demand power of the power purchaser 2 in association with attributes.

  In the example illustrated in FIG. 4, the reference demand power in the adjustment target time interval between time 15:00 and time 15:30 is 460 kW, and the reference demand in the adjustment target time interval between time 15:30 and time 16:00. The power is 500 kW, the reference demand power of the adjustment target time section between time 16: 00 and time 16:30 is 490 kW, and the reference demand power of the adjustment target time section between time 16:30 and time 17:00 is 480 kW. In the present embodiment, the value of the reference demand power derived in this way is used as the value of the reference demand power shown in FIG.

  In addition, in the adjustment target time sections for each of the plurality of days used for derivation of the reference demand power, when the power purchaser 2 performs a reduction in demand power based on the application information, the adjustment target time measured at that time The actual value of power demand in the section is not the power demand that would be measured if the power purchaser 2 did not attempt to reduce the power demand within the planned reduction determined in the application information, but the adjustment It includes the actual decrease in power demand in the target time section. That is, if the above-mentioned reference demand power is derived using the actual value of the demand power when the demand power is reduced based on the application information, the reliability of the reference demand power is lowered.

However, in this embodiment, when the reduction in demand power based on the application information is performed by the power purchaser 2 in each adjustment target time section of a plurality of days, the actual reduction amount of the demand power in the adjustment target time section Therefore, since the reference demand power in the adjustment target time section is derived, the reliability of the derived reference demand power value can be increased.
Specifically, when the power purchaser 2 performs a reduction in power demand based on the application information, the actual value of power demand in the adjustment target time interval measured at that time will be described later. It is only necessary to perform correction for adding the actual reduction amount of the demand power in the adjustment target time section derived in step (1). By this correction, it is assumed that there was no actual decrease in demand power in the adjustment target time section. Then, the actual value of the corrected demand power may be stored in the storage means 22 and used for derivation of the reference demand power in the adjustment target time section as necessary.

As an example, in FIG. 3, the actual value of the demand power is indicated by a solid line, the reference demand power is indicated by a broken line, and the value obtained by subtracting the planned decrease from the reference demand power is indicated by a one-dot chain line. In addition, the portion that satisfies the planned decrease is shown darkly.
As shown in FIG. 3, if the actual value of the demand power in the adjustment target time section on the sales day is lower than the reference demand power value, it is because the power purchaser 2 has reduced the demand power. You may consider it a thing. In the application information, it is specified in what adjustment target time section how much the planned power reduction is scheduled to be reduced. Therefore, the satisfaction degree deriving means 21, for example, if the actual value of the demand power is equal to a value that is decreased by the planned decrease amount from the value of the reference demand power, the actual decrease in the demand power in the adjustment target time section. It can be derived that the extent to which the width is satisfied with respect to the planned decrease in demand power in the adjustment target time section related to the application information is 100%.

3 will be described in detail. Since the actual value of the demand power in the adjustment target time interval between time 15: 00 and time 15:30 is 430 kW, it is −30 kW compared with the reference demand power (460 kW). (Actual decrease). Therefore, the extent to which the planned reduction width (30 kW) is satisfied is 100%.
Since the actual value of the demand power in the adjustment target time interval between the time 15:30 and the time 16:00 is 480 kW, it is −20 kW (actual decrease) compared to the reference demand power (500 kW). . Therefore, the extent to which the planned reduction width (30 kW) is satisfied is 67%.
Since the actual value of the demand power in the adjustment target time interval between the time 16:00 and the time 16:30 is 450 kW, it is −40 kW (actual decrease) compared to the reference demand power (490 kW). . Therefore, the extent to which the planned reduction width (30 kW) is satisfied is 133%.
Since the actual value of the demand power in the adjustment target time interval between the time 16:30 and the time 17:00 is 500 kW, it is +20 kW (actual decrease) compared to the reference demand power (480 kW). Therefore, the extent to which the planned reduction width (30 kW) is satisfied is −67%.

  The degree of satisfaction of the planned decrease width in each adjustment target time section of the power purchaser 2 derived by the satisfaction degree deriving means 21 as described above is stored in the storage means 22. The value that satisfies this planned decrease corresponds to a value that indicates how much the power purchaser 2 has contributed to the adjustment of the supply and demand plan. Accordingly, the information stored in the storage means 22 is read to the extent that the planned purchase reduction amount in each adjustment target time section of the power purchaser 2 is satisfied, and the money, the discount of the power charge, the product corresponding to the degree of the satisfaction is read. Such benefits as power purchaser 2 may be given.

  At that time, it is possible to appropriately set what kind of privilege and penalty are given based on the extent to which the planned reduction range is satisfied. For example, only when the value that satisfies the planned reduction range is between 0% and 100%, a privilege corresponding to the ratio is given to the power purchaser 2, and in the case of other ratios, the benefit and penalty are given. If none of them is given to the power purchaser 2 or if the benefit corresponding to the ratio is given even when the value that satisfies the planned decrease exceeds 100%, the value that satisfies the planned decrease is negative. Various examples can be considered, such as giving a penalty depending on the ratio of the value.

<Another embodiment>
<1>
In the said embodiment, although the structure of the electric power sales system was illustrated with reference to FIG.1 and FIG.2, the structure is not limited to what was illustrated, It can change suitably. For example, the supply and demand adjustment support device 10 may be integrated with the electric utility 4. Furthermore, the electric power provider 4 and the power supplier 1 may be integrated, or the supply and demand adjustment support device 10, the electric power provider 4, and the power supplier 1 may be integrated.
Similarly, the supply and demand adjustment evaluation device 20 may be integrated with the electric power company 4. Furthermore, the supply and demand adjustment evaluation device 20, the electric utility 4 and the power supplier 1 are integrated, or the supply and demand adjustment evaluation device 20, the electric enterprise 4, the electric power supplier 1, and the supply and demand adjustment support device 10 are integrated. Also good.

<2>
In the above-described embodiment, the recruitment information notification unit 11 may notify the power purchaser 2 in advance of information that is motivating to apply. For example, the power purchaser 2 may be notified in advance of information about the above-mentioned benefits obtained when applying to the recruitment information and actually reducing the power demand.

<3>
In the embodiment described above, the application information receiving means 12 sums up the planned reductions in the demand power for each power purchaser 2 in the order of early application from the power purchaser 2 to the recruitment information, and Although the example in which the process of closing the application for the recruitment information when the total value of the planned reduction width reaches the first required power has been described, the process may be changed to perform other processes. For example, the application information receiving means 12 temporarily receives all applications from the power purchaser 2 during a predetermined application period, and then the total value of the planned reduction in demand power by all the power purchasers 2 that have temporarily received the application is When exceeding the first required power, the power purchaser 2 is selected by lottery or the like so that the total value of the planned decrease in demand power by the plurality of power purchasers 2 becomes equal to or approximates the first required power. be able to. Alternatively, the application information received from the power purchaser 2 includes, in addition to the information related to the adjustment target time section and the planned decrease in demand power, how many privileges (for example, power charges) (For example, “Time ... hour to time ... 30 minutes between hours ... discount discount when a planned reduction of kW is made ... yen / In the case of including information related to “in kW”, etc., the power purchaser 2 desires the power in ascending order of the privilege (for example, in ascending order of the discount rate of the electric power charge generated when the demand power is reduced). The purchaser 2 may be selected.

<4>
In the above-described embodiment, the power purchaser 2 may make an application so as to decrease his / her demand power to a negative value. For example, when the power purchaser 2 includes the private power generation device 2b, if the generated power of the private power generation device 2b exceeds the power consumption of the power consumption device 2a, the demand power of the power purchaser 2 becomes a negative value.

<5>
In the above embodiment, the supply and demand adjustment evaluation apparatus 20 according to the present invention has been described with reference to FIG. 3 and FIG. 4. However, FIG. 3 and FIG. The content is not limited.

  The present invention relates to a supply and demand adjustment support device capable of adjusting a supply and demand plan while leaving a surplus power supply capacity by an electric power supplier, and whether or not the adjustment plan determined by the supply and demand adjustment support device has been properly implemented. It can be used for a supply and demand adjustment evaluation device to be evaluated.

DESCRIPTION OF SYMBOLS 1 Electric power supplier 2 Electric power purchaser 2a Electric power consumption apparatus 2b Private power generation apparatus 3 Power transmission / distribution system 4 Electric power company 10 Supply and demand adjustment support apparatus 11 Recruitment information notification means 12 Application information reception means 13 Determination means 14 Adjustment plan determination means 15 Storage means 20 Supply and demand adjustment evaluation device 21 Degree of satisfaction deriving means 22 Storage means

Claims (7)

In the electric power sales system in which the electric power company sells electric power to the electric power purchaser by entrusting the electric power supplied from the electric power supplier to the electric power purchaser using the electric power transmission and distribution system, the electric power distribution system When a supply and demand plan between the electric power supplier and the electric power purchaser for the purpose of achieving the same amount of restriction at the same time is created in advance, the electric power supplier in the future adjustment target time interval A supply and demand adjustment support device that adjusts the supply and demand plan so that the planned supply power from the power purchaser does not become insufficient compared to the planned demand power by the power purchaser,
In the adjustment target time section, the planned supply power from the power supplier is insufficient compared to the planned demand power by the power purchaser, and the first required power necessary to solve the shortage is predicted. At the time, in order to recruit from among the power purchasers, the recruitment information including at least information related to the adjustment target time interval is notified to the power purchasers in order to recruit those who are scheduled to perform the act of reducing the planned demand power. Recruitment information notification means,
Application information receiving means for receiving application information including information on the adjustment target time section and the planned reduction in demand power from the power purchaser applying for the recruitment information;
A determination unit that determines whether or not a total reduction amount of the demand power received by the application information reception unit is equal to or greater than the first required power;
Supply / demand adjustment corresponding to the total planned power reduction amount when the determination unit determines that the total planned power reduction amount received by the application information receiving unit is equal to or greater than the first required power A supply and demand adjustment support device comprising: an adjustment plan determination means for determining an adjustment plan in which   The adjustment plan determination means, when the determination means determines that the sum of the planned reduction amount of the demand power received by the application information reception means is insufficient with respect to the first required power, to eliminate the shortage The supply / demand adjustment support apparatus according to claim 1, wherein the adjustment plan for performing supply / demand adjustment that covers the second required power required for the supply by increasing the scheduled supply power of the power supplier is determined.   The application information receiving means sums up the planned power reduction amount for each power purchaser in order of the time when the power purchaser has applied for the recruitment information, and the planned power reduction amount of the power demand. The supply and demand adjustment support apparatus according to claim 1 or 2, wherein the application for the recruitment information is closed when the total value of the power reaches the first required power.   The power purchaser includes a power consuming device and a private power generation device operable by the power purchaser, and adjusts at least one of the power consumption by the power consuming device and the power generated by the private power generation device. The supply and demand adjustment support apparatus according to any one of claims 1 to 3, wherein the power can be adjusted.   After the sale of electric power to the electric power purchaser is performed on the sales day according to the supply and demand plan adjusted by the supply and demand adjustment support device according to any one of claims 1 to 4, the adjustment target time interval A supply and demand adjustment evaluation apparatus comprising a satisfaction degree deriving unit for deriving a degree that an actual reduction amount of the demand power is satisfied with respect to a planned reduction amount of the demand power in the adjustment target time section according to the application information.   The degree of satisfaction deriving means obtains a value obtained by subtracting an actual value of the demand power in the adjustment target time interval on the sales day from a reference demand power in the adjustment target time interval. The supply and demand adjustment evaluation device according to claim 5, wherein the supply / demand adjustment evaluation device is derived as an actual decrease amount of the demand power in a time section. The reference demand power in the adjustment target time interval is an average value of the actual value of the demand power in each of the adjustment target time intervals for each of a plurality of days prior to the sale date.
In the adjustment target time interval of each of the plurality of days, when the power purchase based on the application information has been reduced by the power purchaser, the actual reduction amount of the demand power in the adjustment target time interval is The demand-and-supply adjustment evaluation apparatus according to claim 6, wherein the reference demand power in the adjustment target time section is derived as having been absent.

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