JP6911316B2 - Management equipment and management program - Google Patents

Description

The present invention relates to a management device and a management program.

For example, Kyushu Electric Power Co., Ltd., "About the concept of output control rules and output control outlook calculation", [online], February 17, 2015, Energy Conservation and New Energy Subcommittee, New Energy Subcommittee System Working Group (4th) Handouts, p. 15, [Search on June 22, 2016], Internet <URL: http: // www. meti. go. jp / committee / sougouenergy / shouene_shinene / shin_ene / keito_wg / pdf / 004_03_00. pdf> (Non-Patent Document 1) describes a method for controlling the output of generated power from a renewable energy power generation company.

For example, a general electric power company determines the required amount of output control based on the estimated value of the amount of solar radiation on the day when the output control is implemented. Here, the estimated solar radiation amount is announced by the meteorological company at 10 o'clock on the day before the output control implementation date, for example. For example, the general electric power company creates an output control instruction based on the determined output control required amount, and notifies the target renewable energy power generation company of the output control instruction in the evening of the day before the output control implementation date. ..

Kyushu Electric Power Co., Ltd., "About the concept of output control rules and output control outlook calculation", [online], February 17, 2015, Energy Conservation and New Energy Subcommittee, New Energy Subcommittee, System Working Group (4th) Handouts, p. 15, [Search on June 22, 2016], Internet <URL: http: // www. meti. go. jp / committee / sougouenergy / shouene_shinene / shin_ene / keito_wg / pdf / 004_03_00. pdf>

By the way, there is often an upper limit on the number of times or the period during which a power supply restraint command can be issued to the same power generation company, for example, it is set to be within 30 days or 360 hours per year. .. For this reason, it is desirable to issue restraint directives that provide effective results and effectively utilize the limited opportunities for restraint directives. However, since the actual output amount fluctuates depending on the weather and the like, it is not easy to select a command destination that can obtain effective results.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a management device and a management program capable of appropriately selecting a control target for suppressing a power supply.

(1) In order to solve the above problems, the management device according to a certain aspect of the present invention is a management device that manages the power supply by a plurality of power generation devices, and indicates the suppression period for suppressing the power supply. The power management information acquisition unit that acquires management information, the actual amount information indicating the actual amount of power generation in the past of the power generation device, the past environmental information regarding the past environment of the facility where the power generation device is installed, and the power management. The acquisition unit that acquires the environmental forecast information regarding the environment of the facility during the suppression period indicated by the power management information acquired by the information acquisition unit, the actual amount information acquired by the acquisition unit, the past environmental information, and the said. Based on the environmental forecast information, for each of the power generation devices, a prediction unit that predicts the suppressable amount, which is the amount of power that can be suppressed during the suppression period, and the actual amount indicated by the actual amount information acquired by the acquisition unit. And, based on the suppressable amount predicted by the predictor, for each of the power generation devices, based on the actual results of being less than or equal to the suppressable amount or more than or equal to the predictable amount, of the plurality of the power generation devices. A selection unit for selecting a control target for suppression is provided.

(8) In order to solve the above-mentioned problems, the management program according to a certain aspect of the present invention is a management program used in a management device that manages power supply by a plurality of power generation devices, and uses a computer to supply the power. The power management information acquisition unit that acquires power management information indicating the suppression period for suppression, the actual amount information indicating the actual amount of power generation in the past of the power generation device, and the past environment of the facility where the power generation device is installed. An acquisition unit that acquires environmental information and environmental forecast information regarding the environment of the facility during the suppression period indicated by the power management information acquired by the power management information acquisition unit, and the actual amount acquired by the acquisition unit. Based on the information, the past environmental information, and the environmental forecast information, for each of the power generation devices, a prediction unit that predicts the suppressable amount, which is the amount of power that can be suppressed during the suppression period, and the said acquisition unit acquired by the acquisition unit. Based on the actual amount indicated by the actual amount information and the suppressable amount predicted by the prediction unit, based on the actual amount that was less than or equal to the suppressable amount or the actual amount that was greater than or equal to the predictable amount for each power generation device. This is a program for functioning as a selection unit for selecting a control target for suppression from the plurality of power generation devices.

The present invention can be realized not only as a management device provided with such a characteristic processing unit, but also as a management method in which such characteristic processing is a step. Further, the present invention can be realized as a semiconductor integrated circuit that realizes a part or all of the management device, or can be realized as a management system including the management device.

According to the present invention, it is possible to appropriately select a control target for suppressing the power supply.

FIG. 1 is a diagram showing a configuration of a power management system according to an embodiment of the present invention. FIG. 2 is a diagram showing a configuration of a power management device according to an embodiment of the present invention. FIG. 3 is a diagram showing an example (No. 1) of a cumulative frequency distribution created by the information processing unit of the power management device according to the embodiment of the present invention. FIG. 4 is a diagram showing an example (No. 2) of a cumulative frequency distribution created by the information processing unit of the power management device according to the embodiment of the present invention. FIG. 5 is a diagram showing an example (No. 3) of a cumulative frequency distribution created by the information processing unit of the power management device according to the embodiment of the present invention. FIG. 6 is a flowchart defining an operation procedure by the power management device according to the embodiment of the present invention.

First, the contents of the embodiments of the present invention will be listed and described.

(1) The management device according to the embodiment of the present invention is a management device that manages power supply by a plurality of power generation devices, and power management that acquires power management information indicating a suppression period for suppressing the power supply. The information acquisition unit, the actual amount information indicating the actual amount of power generation in the past of the power generation device, the past environmental information regarding the past environment of the facility where the power generation device is installed, and the power management information acquisition unit. Based on the acquisition unit that acquires the environmental forecast information regarding the environment of the facility during the suppression period indicated by the power management information, the actual amount information acquired by the acquisition unit, the past environmental information, and the environmental forecast information. For each of the power generation devices, a prediction unit that predicts a suppressable amount that is the amount of power that can be suppressed during the suppression period, and the actual amount and the prediction unit that the actual amount information acquired by the acquisition unit indicates. For the suppression from among the plurality of power generation devices, based on the actual result of being less than or equal to the suppressable amount or the actual result of being more than the predictable amount for each power generation device based on the suppressable amount. It includes a selection unit for selecting a control target.

With such a configuration, it is possible to select a power generation device as a control target, which is more likely to obtain more effective results when the suppression is performed during the current suppression period than when the suppression is performed in the future suppression period. Therefore, the control target for suppressing the power supply can be appropriately selected.

(2) Preferably, the acquisition unit further acquires consumption information indicating the past power consumption in the facility, and the prediction unit obtains the actual results acquired by the acquisition unit for each power generation device. Based on the amount information, the past environment information, and the consumption amount information, the power generation amount in the suppression period and the power consumption amount in the suppression period are predicted, and the predicted value of the power generation amount and the predicted value of the power consumption amount are set. The difference is calculated as the suppressable amount of the power generation device.

With such a configuration, for example, even if there is a facility that employs a surplus power selling method in which the remaining power consumed in the facility is sold, the amount of power generation equipment installed in the facility that can be suppressed can be accurately suppressed. Can be predicted.

(3) Preferably, the acquisition unit further acquires cumulative period information indicating the cumulative period in which the control for suppression is performed for each power generation device, and the selection unit is acquired by the acquisition unit. The power generation device having a short cumulative period indicated by the cumulative period information is preferentially selected as the control target.

With such a configuration, it is possible to prevent commands for suppressing power supply from being concentrated in the same facility.

(4) Preferably, the power management information includes the target amount of the suppression, and the selection unit is the sum of the suppressable amounts of one or a plurality of the control targets and the said said by the power management information. The power generation device having a small difference from the target amount is preferentially selected as the control target.

With such a configuration, it is possible to select a power generation device having a small excess or deficiency of the suppressable amount with respect to the target amount as the control target, so that efficient suppression can be performed.

(5) Preferably, the selection unit divides a plurality of the power generation devices into a plurality of groups, assigns an evaluation value based on the actual results to each group, and controls the group having a high evaluation value. Select as a group of.

With such a configuration, it is possible to select a plurality of power generation devices having common points such as an area where a facility exists as a control target.

(6) Preferably, the selection unit divides a plurality of the power generation devices into a plurality of groups and selects the control target from each of the groups.

Depending on such a configuration, for example, the control target is selected from each of the group adopting the total power sale that sells the total power generated in the facility and the group adopting the surplus power sale, and the control target is different. Directives can be distributed to facilities that use the power sales method.

(7) Preferably, the selection unit divides the suppression period into a plurality of periods, and selects the control target for each of the divided periods.

Here, if the suppression period is long, the environment of the facility may change significantly during the suppression period, but with the above configuration, it is possible to select an appropriate control target for each divided period. can.

(8) The management program according to the embodiment of the present invention is a management program used in a management device that manages power supply by a plurality of power generation devices, and indicates a suppression period for suppressing the power supply of the computer. The power management information acquisition unit that acquires power management information, the actual amount information indicating the past power generation amount of the power generation device, the past environmental information regarding the past environment of the facility where the power generation device is installed, and the power generation. The acquisition unit that acquires the environmental forecast information regarding the environment of the facility during the suppression period indicated by the power management information acquired by the management information acquisition unit, the actual amount information acquired by the acquisition unit, the past environmental information, and the past environment information. Based on the environmental forecast information, for each of the power generation devices, a prediction unit that predicts the suppressable amount, which is the amount of power that can be suppressed during the suppression period, and the actual result indicated by the actual amount information acquired by the acquisition unit. A plurality of the power generation devices based on the amount and the record of being less than or equal to the suppressable amount or more than or equal to the predictable amount for each power generation device based on the suppressable amount predicted by the predictor. It is a program for functioning as a selection unit for selecting a control target for suppression from among the above.

With such a configuration, it is possible to select a power generation device as a control target, which is more likely to obtain more effective results when the suppression is performed during the current suppression period than when the suppression is performed in the future suppression period. Therefore, the control target for suppressing the power supply can be appropriately selected.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same or corresponding parts in the drawings are designated by the same reference numerals, and the description thereof will not be repeated. In addition, at least a part of the embodiments described below may be arbitrarily combined.

<Configuration and basic operation>
[Power management system]
FIG. 1 is a diagram showing a configuration of a power management system according to an embodiment of the present invention.

With reference to FIG. 1, the power management system 301 includes a power management device 101, a storage device 161, a system side management device 151, power generation control devices 202A, 202B, 202C, and power generation devices 203A, 203B, 203C. Be prepared.

Hereinafter, each of the power generation control devices 202A, 202B, and 202C will also be referred to as a power generation control device 202. Further, each of the power generation devices 203A, 203B, and 203C is also referred to as a power generation device 203.

Although the three power generation control devices 202 are typically shown in FIG. 1, a large number or a small number of power generation control devices 202 may be provided. Further, although one power generation device 203 is provided corresponding to the power generation control device 202, a plurality of power generation devices 203 may be provided corresponding to one power generation control device 202.

In the power management system 301, for example, when the power supply exceeds the power demand, or when the power supply amount may exceed the power demand, the power supply is suppressed.

More specifically, the power generation control device 202 and the power generation device 203 in the power management system 301 are provided in a power generation facility such as a solar power plant and a wind power plant, and are operated by a power generation company. The power generation facility also includes a building, a factory or a general household.

The power generation device 203 is, for example, a solar power generation device or a wind power generation device, and generates electricity from renewable energy.

One power generation control device 202 may be provided for each power generation facility, or a plurality of power generation control devices 202 may be provided for each power generation facility. The power generation control device 202 is, for example, a PCS (Power Conditioning System). The power generation control device 202 controls the power generation device 203 in the power generation facility to suppress the output amount of the electric power of the power generation device 203.

The grid side management device 151 is operated by a general electric power company such as a power company or a grid operation company on the power system side, and transmits power management information regarding the content of suppression of power supply to the power management device 101.

Here, the power management information includes, for example, the start timing and the length of the suppression period of the period for suppressing the power supply (hereinafter referred to as the suppression period), the target amount of the suppression of the power supply, and the suppression of the power supply. Includes the target area, etc.

The power management information may include the end timing of the suppression period instead of the length of the suppression period. Further, the target area may be, for example, an area defined by an administrative division such as a prefecture or a municipality, or an area based on a grid power transmission network.

The power management device 101 is operated by a distribution company such as an aggregator, and manages the power supply from the power generation device 203 by communicating with one or more power generation control devices 202.

Specifically, the power management device 101 receives, for example, power management information from the system side management device 151, and shows the suppression period and the control content of the power generation device 203 during the suppression period based on the received power management information. Create control information. Then, the power management device 101 transmits the created control information to the power generation control device 202.

When the power generation control device 202 receives the control information from the power management device 101, the power generation control device 202 controls the power generation device 203 according to the contents indicated by the received control information.

Further, the power generation control device 202 measures the amount of electric power generated by the power generation device 203, for example, every minute. Further, the power generation control device 202 measures at least one of the temperature, humidity, amount of solar radiation, and weather of the facility provided with the power generation device 203, for example, every minute. In addition, each of temperature, humidity, amount of solar radiation and weather is also referred to as "environment".

The power generation control device 202, for example, associates the measurement result of the electric energy measured at the same timing with the measurement result of the environment and transmits the measurement result to the power management device 101.

[Explanation of issues]
By the way, there is often an upper limit on the number of times or the period during which a command to curb the power supply can be issued to the same power generation company, for example, it is set to be within 30 days or 360 hours per year. There is. Therefore, for example, when the number of commands to all the power generation companies having an upper limit reaches the upper limit, the subsequent commands are concentrated on the power generation companies having no upper limit.

Therefore, for example, the amount of power that can be suppressed during the suppression period (hereinafter referred to as "suppressable amount") so that the suppression command that can obtain effective results can be issued and the limited opportunities for the suppression command can be effectively utilized. It is conceivable to predict for each power generation device and preferentially select a power generation company having a predicted power generation device with a large amount of control as a command destination. However, with such a method, there is a possibility that the directives will be concentrated on the power generation companies having large-scale power generation devices.

Further, for example, the ratio of the suppressable amount to the rated output amount of the power generation device (hereinafter referred to as "rated amount") is obtained, and the power generation company having the power generation device having the high ratio is preferentially selected as the command destination. It is conceivable to do. By such a method, the command destinations can be dispersed as compared with the case where a power generation company having a power generation device having a large amount of controllable amount is selected as the command destination.

However, since the actual output amount of the power generation device fluctuates depending on the weather and the like, the rated amount is not always output on a daily basis. Therefore, for example, even if the ratio of the power generation device A is higher than the ratio of the power generation device B, depending on the usual output amount of the power generation device A, the power supply may be suppressed in the future rather than being suppressed during the current suppression period. It may be more effective to suppress the power supply during the suppression period.

Specifically, it is assumed that the power generation device A is provided in an area with a lot of sunny weather, and the usual output amount is about 90% of the rated amount. When the predicted suppressable amount is 70% of the rated amount, it is more effective to suppress the power supply in the future suppression period than to suppress the power supply in the current suppression period. Probability is high.

Further, for example, it is assumed that the power generation device B is provided in an area with a lot of rain, and the usual output amount is about 30% of the rated amount. When the predicted suppressable amount is 40% of the rated amount, it is more effective to suppress the power supply in the current suppression period than to suppress the power supply in the future suppression period. Probability is high.

As described above, even in the method of selecting a power generation company having a power generation device having a high ratio of the suppressable amount to the rated amount as the command destination, the selected command destination may not be appropriate.

Therefore, the management system 301 according to the embodiment of the present invention appropriately selects a control target for suppressing the power supply by the following configuration.

[Power management device]
FIG. 2 is a diagram showing a configuration of a power management device according to an embodiment of the present invention.

The power management device 101 includes a receiving unit (power management information acquisition unit) 11, a prediction unit 12, an information acquisition unit 13, an evaluation value giving unit 14, a selection unit 15, a transmitting unit 16, and an information processing unit ( Acquisition unit) 17 and is included.

The information processing unit 17 receives, for example, the measurement result of the electric energy generated by the power generation device 203 and the measurement result of the environment of the facility provided with the power generation device 203, which are periodically transmitted from the power generation control device 202. These measurement results are stored in the storage device 161.

As a result, the storage device 161 stores the measurement result indicating the electric energy of the past power generation and the measurement result indicating the corresponding past environment. The amount of power generated in the past stored in the storage device 161 is also referred to as "actual amount", and the information indicating the actual amount is also referred to as "actual amount information". Further, the information indicating the past environment stored in the storage device 161 is also referred to as "past environment information".

Further, the information processing unit 17 receives, for example, the rated amount information indicating the rated amount of the power generation device 203 from the corresponding power generation control device 202, and stores the received rated amount information in the storage device 161.

Then, the information processing unit 17 periodically creates, for example, a cumulative frequency distribution relating to the ratio of the past actual quantity to the rated quantity based on the actual quantity information and the rated quantity information stored in the storage device 161. And update.

FIG. 3 is a diagram showing an example (No. 1) of a cumulative frequency distribution created by the information processing unit of the power management device according to the embodiment of the present invention.

With reference to FIG. 3, specifically, in the information processing unit 17, 80% of the past power generation by the power generation device 203A was an output of 60% or less of the rated amount, and the past output by the power generation device 203A. A cumulative frequency distribution Da is created, which indicates that 50% of the power generation was an output of 50% or less of the rated amount.

With reference to FIG. 2 again, the information processing unit 17 creates a cumulative frequency distribution for each power generation device 203, and stores the created cumulative frequency distribution in the storage device 161.

The receiving unit 11 receives, for example, the power management information from the system side management device 151, and outputs the received power management information to the prediction unit 12 and the selection unit 15.

When the prediction unit 12 receives the power management information from the reception unit 11, the prediction unit 12 confirms the suppression period indicated by the power management information. Then, the prediction unit 12 instructs the information acquisition unit 13, for example, to acquire the environmental forecast information indicating the environment in the suppression period of each facility provided with the power generation device 203.

The information acquisition unit 13 acquires environmental forecast information for each facility from, for example, a website on the Internet in accordance with the instruction from the prediction unit 12. Then, the information acquisition unit 13 outputs the acquired environmental forecast information to the prediction unit 12.

When the prediction unit 12 acquires the environment forecast information for each facility from the information acquisition unit 13, for example, for each facility, the environment indicated by the environment forecast information and the environment indicated by the past environment information stored in the storage device 161 are displayed. Confirm and detect past environments that match or resemble the environment during the suppression period.

Then, the prediction unit 12 acquires, for example, the actual amount associated with the detected past environment as the predicted value of the power generation amount of the power generation device 203 in the suppression period. By such a method, the prediction unit 12 acquires the predicted value of the amount of power generation in the suppression period for each power generation device 203.

Then, the prediction unit 12 notifies the evaluation value giving unit 14 of the predicted value of the power generation amount of each power generation device 203 as the suppressable amount in the suppression period.

Upon receiving the notification of the suppressable amount of each power generation device 203 from the prediction unit 12, the evaluation value giving unit 14 is based on the cumulative frequency distribution stored in the storage device 161 and the suppressable amount for each power generation device 203. , An evaluation value is given for the actual results that were less than or equal to the suppressable amount or the actual results that were greater than or equal to the predictable amount.

For example, the evaluation value giving unit 14 gives each power generation device 203 an evaluation value regarding the frequency at which the past power generation has an output equal to or less than the suppressable amount. The details of assigning the evaluation value by the evaluation value assigning unit 14 will be described later.

Then, the evaluation value giving unit 14 notifies the selection unit 15 of the evaluation value given to each power generation device 203.

The selection unit 15 is for suppressing the power supply from the plurality of power generation devices 203 based on the power management information received from the reception unit 11 and the evaluation value of each power generation device 203 received from the evaluation value assigning unit 14. Select the control target. At this time, the selection unit 15 selects the control target so that the total of the suppressable amounts of the selected power generation device 203 satisfies the target amount indicated by the power management information.

Specifically, it is assumed that the target amount indicated by the power management information is 700 kW, and the evaluation value is higher in the order of the power generation device 203C, the power generation device 203A, and the power generation device 203B. Further, it is assumed that the suppressable amount of the power generation device 203C is 300 kW, the suppressable amount of the power generation device 203A is 500 kW, and the suppressable amount of the power generation device 203B is 400 kW.

In this case, the sum of the suppressable amount of the power generation device 203C having the highest evaluation value and the suppressable amount having the second highest evaluation value is 800 kW, and the target amount of 700 kW indicated by the power management information is satisfied. Selects the power generation device 203C and the power generation device 203A as control targets.

Then, the selection unit 15 outputs the selection result and the power management information to the transmission unit 16.

Upon receiving the selection result and the power management information from the selection unit 15, the transmission unit 16 creates control information indicating the control content in the suppression period for each control target indicated by the selection result. Then, the transmission unit 16 transmits the created control information for each control target to the corresponding power generation control device 202. The transmission unit 16 may transmit the control information for each control target to the power generation control device 202 and store the control information in the storage device 161.

[Giving evaluation values and selecting control targets]
(A) Example 1
With reference to FIG. 3 again, it is assumed that, for example, the rated amount of the power generation device 203A is 1000 kW, and the suppressable amount of the power generation device 203A in a certain suppression period is 500 kW. That is, it is assumed that the suppressable amount of the power generation device 203A during the suppression period is 50% of the rated amount.

In this case, the evaluation value assigning unit 14 refers to the cumulative frequency distribution Da of the power generation device 203A stored in the storage device 161, and 50% of the past power generation has an output of 50% or less of the rated amount. To confirm. Then, the evaluation value giving unit 14 gives the evaluation value "50" to the power generation device 203A, for example.

The evaluation value giving unit 14 uses the ratio of the frequency at which the output of the past power generation was less than the suppressable amount as the evaluation value. Instead of the ratio, for example, the frequency itself may be used as the evaluation value. Further, the evaluation value giving unit 14 may give an evaluation value related to the actual result which was equal to or more than the suppressable amount instead of the evaluation value related to the actual result which was equal to or less than the suppressable amount.

FIG. 4 is a diagram showing an example (No. 2) of a cumulative frequency distribution created by the information processing unit of the power management device according to the embodiment of the present invention.

With reference to FIG. 4, it is assumed that the rated amount of the power generation device 203B is 1000 kW and the suppressable amount of the power generation device 203B during the suppression period is 400 kW. That is, it is assumed that the suppressable amount of the power generation device 203B during the suppression period is 40% of the rated amount.

In this case, the evaluation value giving unit 14 refers to the cumulative frequency distribution Db of the power generation device 203B stored in the storage device 161, and 40% of the past power generation has an output of 40% or less of the rated amount. To confirm. Then, the evaluation value giving unit 14 gives the evaluation value "40" to the power generation device 203B, for example.

FIG. 5 is a diagram showing an example (No. 3) of a cumulative frequency distribution created by the information processing unit of the power management device according to the embodiment of the present invention.

With reference to FIG. 5, it is assumed that the rated amount of the power generation device 203C is 1000 kW and the suppressable amount of the power generation device 203C during the suppression period is 300 kW. That is, it is assumed that the suppressable amount of the power generation device 203C during the suppression period is 30% of the rated amount.

In this case, the evaluation value giving unit 14 refers to the cumulative frequency distribution Dc of the power generation device 203C stored in the storage device 161, and 60% of the past power generation has an output of 30% or less of the rated amount. To confirm. Then, the evaluation value giving unit 14 gives the evaluation value "60" to the power generation device 203C, for example.

In this way, the evaluation value giving unit 14 gives each power generation device 203 an evaluation value based on the frequency in which the past actual amount is equal to or less than the suppressable amount. In addition, such an evaluation value is also referred to as a "suppression amount evaluation value".

Then, for example, the selection unit 15 preferentially selects the power generation device 203C, the power generation device 203A, and the power generation device 203B, which are given by the evaluation value giving unit 14 and have the highest suppression amount evaluation value, as control targets.

(B) Example 2
The selection unit 15 preferentially selects, for example, the power generation device 203 having a high suppression amount evaluation value and having a short cumulative period for which control for suppressing the power supply has been performed in the past as a control target. You may.

Specifically, as described in "(a) Example 1", the suppression amount evaluation values of the power generation device 203A, the power generation device 203B, and the power generation device 203C are "50", "40", and "60", respectively. And.

Further, the information processing unit 17 periodically receives, for example, cumulative period information indicating the cumulative period of the year in which the corresponding power generation device 203 is controlled from each power generation control device 202, and receives the received cumulative period information. It is stored in the storage device 161. When the information processing unit 17 receives new cumulative period information, for example, the information processing unit 17 updates the cumulative period information stored in the storage device 161.

As described above, the transmission unit 16 may transmit the control information for each control target to the power generation control device 202 and store the control information in the storage device 161. In this case, instead of receiving the cumulative period information from each power generation control device 202, the information processing unit 17 accumulates each power generation device 203 based on, for example, the control information for each control target stored in the storage device 161. Cumulative period information indicating the period may be created and stored in the storage device 161.

Here, it is assumed that the cumulative periods of the power generation device 203A, the power generation device 203B, and the power generation device 203C indicated by the cumulative period information stored in the storage device 161 are Ta, Tb, and Tc, respectively.

In this case, the evaluation value giving unit 14 acquires, for example, the cumulative period information stored in the storage device 161 and determines the weights of different values according to the length of the cumulative period indicated by the acquired cumulative period information. For example, the evaluation value giving unit 14 determines the weights Wa, Wb, and Wc as the weights corresponding to the cumulative periods Ta, Tb, and Tc, respectively. It is assumed that the shorter the cumulative period, the larger the weight.

Then, the evaluation value giving unit 14 sets, for example, a value “50 × Wa” obtained by multiplying the suppression amount evaluation value of the power generation device 203A by a weight as the evaluation value of the power generation device 203A. Further, the selection unit 15 sets, for example, a value “40 × Wb” obtained by multiplying the suppression amount evaluation value of the power generation device 203B by a weight as the evaluation value of the power generation device 203B. Further, the selection unit 15 sets, for example, a value “60 × Wc” obtained by multiplying the suppression amount evaluation value of the power generation device 203C by a weight as the evaluation value of the power generation device 203C.

Then, the selection unit 15 preferentially selects, for example, the power generation device 203 having a high evaluation value given by the evaluation value giving unit 14 as a control target.

(C) Example 3
For example, the selection unit 15 may preferentially select the power generation device 203 as the control target so that the difference between the sum of the suppressable amounts of one or a plurality of control targets and the target amount becomes small.

Specifically, it is assumed that the power management device 101 is managed by the power generation device 203A, the power generation device 203B, the power generation device 203C, and the power generation device 203D.

Further, it is assumed that the rated amount of the power generation device 203D is 10000 kW and the suppressable amount in a certain suppression period is 4000 kW. That is, it is assumed that the suppressable amount of the power generation device 203D during the suppression period is 40% of the rated amount.

Further, for example, the cumulative frequency distribution Dd of the power generation device 203D is stored in the storage device 161, and the cumulative frequency distribution Dd indicates that 55% of the past power generation was an output of 40% or less of the rated amount. Suppose you are.

In this case, the evaluation value giving unit 14 gives, for example, the suppression amount evaluation value “55” to the power generation device 203D.

Further, the suppressable amounts of the power generation device 203A, the power generation device 203B, and the power generation device 203C are 500 kW, 400 kW, and 300 kW, respectively, and the evaluation value giving unit 14 is, for example, as described in "(a) Example 1". It is assumed that the power generation device 203A, the power generation device 203B, and the power generation device 203C are given the suppression amount evaluation values "50", "40", and "60", respectively.

Then, for example, the selection unit 15 first selects each power generation device 203, which is a candidate for the control target, in descending order of the suppression amount evaluation value given by the evaluation value giving unit 14, that is, the power generation device 203C, the power generation device 203D, and the power generation. The device 203A and the power generation device 203B are sorted in this order.

In addition, instead of the suppression amount evaluation value, the selection unit 15 assigns an evaluation value having different weights according to the length of the cumulative period to each power generation device 203 as described in "(b) Example 2". Then, the power generation device 203 may be sorted as control target candidates in descending order of the assigned evaluation values.

Then, for example, the selection unit 15 compares the suppressable amount and the target amount in order from the sorted power generation device 203 having the highest suppression evaluation value, and determines whether or not to select as the control target.

Specifically, the selection unit 15 first confirms whether or not the difference between the suppressable amount and the target amount of the power generation device 203C having the highest suppression amount evaluation value is less than the predetermined value X1.

Here, it is assumed that the target amount indicated by the power management information is 700 kW and the predetermined value X1 is 1000 kW.

In this case, since the difference between the suppressable amount and the target amount of the power generation device 203C is less than 1000 kW, the selection unit 15 selects the power generation device 203C as the control target.

Next, the selection unit 15 calculates, for example, the sum of the suppressable amount of the power generation device 203C selected as the control target and the suppressable amount of the power generation device 203D having the second highest suppression evaluation value, and the calculated total is combined with the calculated total. It is confirmed whether or not the difference from the target amount is less than the predetermined value X1.

That is, the selection unit 15 confirms that the total of the suppressable amount of 300 kW of the power generation device 203C and the suppressable amount of 4000 kW of the power generation device 203D is 4300 kW, and the difference from the target amount is a predetermined value X1 or more. In this case, the selection unit 15 excludes the power generation device 203D from the candidates to be controlled.

Next, the selection unit 15 calculates, for example, the sum of the suppressable amount of the power generation device 203C selected as the control target and the suppressable amount of the power generation device 203A having the third highest suppression evaluation value, and the calculated total is combined with the calculated total. It is confirmed whether or not the difference from the target amount is less than the predetermined value X1.

That is, the selection unit 15 confirms that the total of the suppressable amount of 300 kW of the power generation device 203C and the suppressable amount of 500 kW of the power generation device 203A is 800 kW, and the difference from the target amount is less than the predetermined value X1. In this case, the selection unit 15 selects the power generation device 203A as the control target.

Then, the selection unit 15 determines whether or not to select the power generation device 203B as the control target because the total of the suppressable amounts of the power generation device 203C and the power generation device 203A selected as the control target exceeds the target amount of 700 kW. Instead, the selection result and the power management information are output to the transmission unit 16.

As described above, the selection unit 15 compares, for example, the suppressable amount and the target amount of each power generation device 203, instead of comparing the total suppressable amount of the plurality of power generation devices 203 with the target amount. , The power generation device 203 having a small difference between the target amount and the suppressable amount may be preferentially selected as the control target.

Specifically, when the sorted power generation device 203 contains a power generation device 203 in which the difference between the target amount and the suppressable amount is a predetermined value X2 or more, the selection unit 15 controls the power generation device 203. Exclude from the candidates.

For example, assume that the target amount is 700 kW and the predetermined value X2 is 500 kW. In this case, when the power generation device 203 having a suppressable amount of 1200 kW or more or the power generation device 203 having a suppressable amount of less than 200 kW exists, the selection unit 15 excludes the power generation device 203 from the candidates for control.

Here, the selection unit 15 excludes the power generation device 203D having a suppressable amount of 4000 kW from the candidates for control, and from the remaining power generation devices 203A, 203B, 203C, for example, 1 or 1 in descending order of the suppression amount evaluation value. Select multiple control targets.

<Operation>
Next, the operation of the power management device 101 according to the embodiment of the present invention will be described.

Each device in the power management system 301 includes a computer, and an arithmetic processing unit such as a CPU in the computer reads a program including a part or all of each step in the following flowchart from a memory (not shown) and executes the program. The programs of these plurality of devices can be installed from the outside. The programs of these plurality of devices are distributed in a state of being stored in a recording medium.

FIG. 6 is a flowchart defining an operation procedure by the power management device according to the embodiment of the present invention.

Here, it is assumed that the actual amount information, the past environmental information, and the cumulative frequency distribution for each power generation device 203 are stored in the storage device 161.

With reference to FIG. 6, first, the power management device 101 receives the power management information from the system side management device 151 (step S11).

Next, the power management device 101 confirms the suppression period indicated by the acquired power management information, and provides environmental forecast information indicating the environment of each facility provided with the power generation device 203 during the suppression period, for example, a website on the Internet. Obtained from (step S12).

Next, the power management device 101 corresponds to each power generation device 203 based on the acquired environmental forecast information, the actual amount information stored in the storage device 161 and the past environmental information stored in the storage device 161. The amount that can be suppressed during the suppression period is predicted (step S13).

Next, the power management device 101 determines the evaluation value regarding the frequency at which the past power generation has an output equal to or less than the suppressable amount, based on the predicted suppressable amount and the cumulative frequency distribution stored in the storage device 161. It is applied to each power generation device 203 (step S14).

Next, the power management device 101 selects the power generation device 203 to be controlled based on the evaluation value of each power generation device 203 and the target amount indicated by the power management information (step S15).

Next, the power management device 101 creates control information for each selected control target, and transmits the created control information to the corresponding power generation control device 202 (step S16).

[Modification 1]
The power management device 101 may be configured to predict the suppressable amount in consideration of the power consumption in the facility provided with the power generation device 203.

Here, when the method of selling all the power generated in the facility is adopted, the predicted value of the amount of power generation in the suppression period becomes the amount that can be suppressed as it is.

On the other hand, when the surplus power selling method of selling the balance obtained by subtracting the power consumption in the facility from the amount of power generated in the facility is adopted, the power management device 101 is, for example, in the suppression period. The amount of power generation and the amount of power consumption during the suppression period are predicted, and the value obtained by subtracting the predicted value of power consumption from the predicted value of power generation is calculated as the amount that can be suppressed.

More specifically, the power generation control device 202 measures the amount of power generated by the power generation device 203 and the environment of the facility provided with the power generation device 203, as well as the power consumption in the facility. Then, the power generation control device 202, for example, associates the measurement result of the electric energy measured at the same timing, the measurement result of the environment, and the measurement result of the electric power consumption, and transmits the measurement result to the electric power management device 101.

When the power management device 101 receives the power management information from the system side management device 151, the power management device 101 confirms the suppression period indicated by the received power management information, and for example, the environment in the suppression period of the facility provided with the power generation device 203. Acquire the environmental forecast information to be shown.

Then, when the power management device 101 acquires the environmental forecast information for each facility, for example, the power management device 101 confirms the environment indicated by the environmental forecast information and the environment indicated by the past environmental information stored in the storage device 161 for each facility. , Detect past environments that match or resemble the environment during the suppression period.

Then, the prediction unit 12 acquires, for example, the actual amount associated with the detected past environment as the predicted value of the power generation amount of the power generation device 203 in the suppression period. Further, the prediction unit 12 acquires, for example, the detected power consumption associated with the past environment as a predicted value of the power consumption in the suppression period.

Then, the prediction unit 12 calculates, for each power generation device 203, a value obtained by subtracting the predicted value of the power consumption from the predicted value of the power generation amount as the suppressable amount in the suppression period.

[Modification 2]
The power management device 101 may be configured to divide the plurality of power generation devices 203 into a plurality of groups, assign evaluation values for each group, and select a control target for each group.

Specifically, the power management device 101 classifies the plurality of power generation devices 203 into group A, group B, and group C according to, for example, the area where the facility exists. Then, in the power management device 101, for example, the total evaluation value of each power generation device 203 including the group A is set as the evaluation value of the group A, and the total evaluation value of each power generation device 203 including the group B is set as the evaluation value of the group B. The evaluation value shall be the sum of the evaluation values of each power generation device 203 including the group C as the evaluation value of the group C.

Then, when the evaluation value of each group is given in this way, the power management device 101 selects, for example, a group having a high evaluation value as a group to be controlled. Then, the power management device 101 selects a part or all of the power generation device 201 included in the selected group as a control target.

[Modification 3]
The power management device 101 may be configured to divide the plurality of power generation devices 203 into a plurality of groups and select a control target from each group.

Specifically, the power management device 101 divides a plurality of power generation devices 203 into a total power sales group in which the total power sales method is adopted and a surplus power sales group in which the surplus power sales method is adopted. Classify.

Then, in the power management device 101, for example, 80% of the target amount indicated by the power management information is suppressed by the power generation device 203 of the total power sales group, and 20% of the target amount is suppressed by the power generation device 203 of the surplus power sales group. The power generation device 203 having a high evaluation value is selected from each group as a control target.

[Modification example 4]
For example, the power management device 101 may be configured to divide the suppression period indicated by the power management information into a plurality of periods and select a control target for each of the divided periods.

Specifically, the power management device 101 divides the 2-hour suppression period into four periods every 30 minutes. Then, the power management device 101 preferentially selects the power generation device 203 having a high evaluation value as a control target for each divided period.

The power management device 101 may combine the control target selection methods described in "Modification Example 1", "Modification Example 2", "Modification Example 3", and "Modification Example 4", respectively. For example, the power management device 101 may divide the plurality of power generation devices 203 into a plurality of groups, further divide the suppression period into a plurality of periods, and select a control target from a different group for each divided period.

Further, for example, the power management device 101 classifies a plurality of power generation devices 203 into "group 1" in which the method of selling all power is adopted and "group 2" in which the method of selling surplus power is adopted. Further, the plurality of power generation devices 203 included in each group may be grouped according to the area where the facility exists.

Specifically, the power management device 101 classifies the plurality of power generation devices 203 included in the "group 1" into groups 1A, 1B, and 1C according to the area where the facility exists. Further, the power management device 101 classifies the plurality of power generation devices 203 included in the “group 2” into groups 2A, 2B, and 2C according to the area where the facility exists.

Then, the power management device 101 may select, for example, a group having a high evaluation value from "Group 1" and "Group 2" as a group to be controlled.

Specifically, the power management device 101 selects "Group 1A" included in "Group 1" and "Group 2B" and "Group 2C" included in "Group 2" as control target groups.

[Modification 5]
The system side management device 151 may directly communicate with the power generation control device 202 without going through the power management device 101 to directly manage the power supply in the power generation facility. In this case, the system side management device 151 includes, for example, the same configuration as the power management device 101 shown in FIG. 2, and a control target can be selected from a plurality of power generation devices 203. In this case, the system side management device 151 includes, for example, a creation unit (power management information acquisition unit) that creates power management information instead of the reception unit 11 shown in FIG.

Specifically, the system side management device 151 is similar to the power management device 101 described above, for example, in the actual amount information for each power generation device 203, the past environmental information of the facility provided with the power generation device 203, and the suppression period. Obtain the environmental forecast information of the facility.

Then, the system side management device 151 predicts the suppressable amount in the suppression period for each power generation device 203 based on the acquired actual amount information, past environmental information, and environmental forecast information.

Then, the system side management device 151 assigns, for example, a suppression amount evaluation value to each power generation device 203 based on the predicted suppressable amount and the past actual amount indicated by the actual amount information.

Then, the system side management device 151 preferentially selects, for example, the power generation device 203 having a high suppression amount evaluation value as a control target. Then, the system side management device 151 creates control information for each selected control target, and transmits the created control information to the power generation control device 202 corresponding to each control target.

The system side management device 151 selects a control target by using the control target selection methods described in "Modification Example 1", "Modification Example 2", "Modification Example 3", and "Modification Example 4", respectively. You may.

By the way, there is often an upper limit on the number of times or the period during which a power supply restraint command can be issued to the same power generation company, for example, it is set to be within 30 days or 360 hours per year. .. For this reason, it is desirable to issue restraint directives that provide effective results and effectively utilize the limited opportunities for restraint directives. However, since the actual output amount fluctuates depending on the weather and the like, it is not easy to select a command destination that can obtain effective results.

On the other hand, in the power management device 101 according to the embodiment of the present invention, the receiving unit 11 receives the power management information indicating the suppression period for suppressing the power supply. In addition, the information processing unit 17 acquires the actual amount information indicating the actual amount of past power generation of the power generation device 203 and the past environment information regarding the past environment of the facility provided with the power generation device 203. In addition, the information acquisition unit 13 acquires environmental forecast information regarding the environment of the facility during the suppression period indicated by the power management information received by the reception unit 11. Further, the prediction unit 12 sets the suppression period for each power generation device 203 based on the actual amount information and the past environmental information acquired by the information processing unit 17 and the environmental forecast information acquired by the information acquisition unit 13. Predict the amount of power that can be suppressed, which is the amount of power that can be suppressed. Further, the selection unit 15 is less than or equal to the suppressable amount for each power generation device 203 based on the actual amount indicated by the actual amount information acquired by the information processing unit 17 and the suppressable amount predicted by the predictor 12. Alternatively, a control target for suppressing the power supply is selected from the plurality of power generation devices 203 based on the actual results of the predictable amount or more.

With such a configuration, it is possible to select the power generation device 203 as the control target, which is more likely to obtain more effective results when the suppression is performed during the current suppression period than when the suppression is performed in the future suppression period. .. Therefore, the control target for suppressing the power supply can be appropriately selected.

Further, in the power management device 101 according to the embodiment of the present invention, the information processing unit 17 further acquires consumption information indicating the past power consumption in the facility. Further, the prediction unit 12 predicts the power generation amount in the suppression period and the power consumption amount in the suppression period based on the actual amount information, the past environment information, and the consumption amount information acquired by the information processing unit 17 for each power generation device 203. Then, the difference between the predicted value of the power generation amount and the predicted value of the power consumption amount is calculated as the suppressable amount of the power generation device 203.

With such a configuration, for example, even if there is a facility that employs a surplus power selling method in which the remaining power consumed in the facility is sold, the suppressable amount of the power generation device 203 provided in the facility is accurate. Can be predicted.

Further, in the power management device 101 according to the embodiment of the present invention, the information processing unit 17 further provides cumulative period information indicating the cumulative period in which control for suppressing the power supply is performed for each power generation device 203. get. Further, the selection unit 15 preferentially selects the power generation device 203 having a short cumulative period indicated by the cumulative period information acquired by the information processing unit 17 as a control target.

With such a configuration, it is possible to prevent commands for suppressing power supply from being concentrated in the same facility.

Further, in the power management device 101 according to the embodiment of the present invention, the power management information received by the receiving unit 11 includes a target amount for suppressing the power supply. Further, the selection unit 15 preferentially selects a power generation device as a control target so that the difference between the sum of the suppressable amounts of one or a plurality of control targets and the target amount indicated by the power management information becomes small.

With such a configuration, the power generation device 203 having a small excess or deficiency of the suppressable amount with respect to the target amount can be selected as the control target, so that efficient suppression can be performed.

Further, in the power management device 101 according to the embodiment of the present invention, the selection unit 15 divides a plurality of power generation devices 203 into a plurality of groups, assigns an evaluation value based on actual results to each group, and assigns an evaluation value based on the actual results. Select the higher group as the controlled group.

With such a configuration, a plurality of power generation devices 203 having a common point such as an area where a facility exists can be selected as a control target.

Further, in the power management device 101 according to the embodiment of the present invention, the selection unit 15 divides the plurality of power generation devices 203 into a plurality of groups and selects a control target from each group.

Depending on such a configuration, for example, the control target is selected from each of the group adopting the total power sale that sells the total power generated in the facility and the group adopting the surplus power sale, and the control target is different. Directives can be distributed to facilities that use the power sales method.

Further, in the power management device 101 according to the embodiment of the present invention, the selection unit 15 divides the suppression period into a plurality of periods and selects a control target for each of the divided periods.

Here, if the suppression period is long, the environment of the facility may change significantly during the suppression period, but with the above configuration, it is possible to select an appropriate control target for each divided period. can.

Note that some or all of the functions of the management device according to the embodiment of the present invention may be provided by cloud computing. That is, the management device according to the embodiment of the present invention may be configured by a plurality of cloud servers and the like.

It should be considered that the above embodiments are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

The above description includes the features described below.

[Appendix 1]
It is a management device that manages the power supply by multiple power generation devices.
The power management information acquisition unit that acquires power management information indicating the suppression period for suppressing the power supply, and the power management information acquisition unit.
The actual amount information indicating the actual amount of past power generation of the power generation device, the past environmental information regarding the past environment of the facility where the power generation device is provided, and the power management information acquired by the power management information acquisition unit. An acquisition unit that acquires environmental forecast information regarding the environment of the facility during the suppression period shown.
Based on the actual amount information, the past environmental information, and the environmental forecast information acquired by the acquisition unit, the prediction unit predicts the suppressable amount, which is the amount of power that can be suppressed during the suppression period, for each power generation device. When,
The actual amount or the predictable amount that was less than or equal to the suppressable amount for each power generation device based on the actual amount indicated by the actual amount information acquired by the acquisition unit and the suppressable amount predicted by the predictor. Based on the above results, a selection unit for selecting a control target for suppression from the plurality of power generation devices is provided.
The management device is a power management device operated by a distribution company or a system-side management device operated by a general electric power company.
The management device further
Based on the actual amount and the suppressable amount, each of the power generation devices is provided with an evaluation value assigning unit that gives an evaluation value based on the frequency at which the past power generation was an output equal to or less than the suppressable amount.
The selection unit is a management device that preferentially selects a power generation device having a high evaluation value of each power generation device given by the evaluation value assigning unit as a control target.

11 Receiver (Power management information acquisition section)
12 Prediction unit 13 Information acquisition unit 14 Evaluation value assignment unit 15 Selection unit 16 Transmission unit 17 Information processing unit (acquisition unit)
101 Power management device 151 System side management device 161 Storage device 202, 202A, 202B, 202C Power generation control device 202, 202A, 202B, 202C, 202D Power generation device 301 Power management system

Claims (8)

It is a management device that manages the power supply by multiple power generation devices.
The power management information acquisition unit that acquires power management information indicating the suppression period for suppressing the power supply, and the power management information acquisition unit.
The actual amount information indicating the actual amount of past power generation of the power generation device, the past environmental information regarding the past environment of the facility where the power generation device is provided, and the power management information acquired by the power management information acquisition unit. An acquisition unit that acquires environmental forecast information regarding the environment of the facility during the suppression period shown.
Based on the actual amount information, the past environmental information, and the environmental forecast information acquired by the acquisition unit, the prediction unit predicts the suppressable amount, which is the amount of power that can be suppressed during the suppression period, for each power generation device. When,
Based on the actual amount indicated by the actual amount information acquired by the acquisition unit and the suppressable amount predicted by the prediction unit, the actual amount that was less than or equal to the suppressable amount or the suppressable amount for each power generation device. A selection unit that selects a control target for suppression from a plurality of the power generation devices based on the results of the amount or more .
An evaluation value assigning unit that assigns an evaluation value based on the frequency at which past power generation was an output equal to or less than the suppressable amount or greater than or equal to the suppressable amount for each of the power generation devices based on the actual amount and the suppressable amount. With and
The selection unit is a management device that preferentially selects, among the power generation devices, a power generation device having a high evaluation value given by the evaluation value assigning unit as a control target. The acquisition unit further acquires consumption information indicating the past power consumption in the facility, and obtains the consumption information.
Based on the actual amount information, the past environment information, and the consumption amount information acquired by the acquisition unit, the prediction unit generates the power generation amount in the suppression period and the power consumption amount in the suppression period for each power generation device. The management device according to claim 1, wherein the difference between the predicted value of the power generation amount and the predicted value of the power consumption amount is calculated as the suppressable amount of the power generation device. The acquisition unit further acquires cumulative period information indicating the cumulative period in which the control for suppression is performed for each power generation device.
The management device according to claim 1 or 2, wherein the selection unit preferentially selects the power generation device having a short cumulative period indicated by the cumulative period information acquired by the acquisition unit as the control target. The power management information includes the target amount of suppression,
The selection unit preferentially selects the power generation device as the control target so that the difference between the sum of the suppressable amounts of the control target and the target amount indicated by the power management information becomes small. The management device according to any one of claims 1 to 3. The selection unit divides a plurality of the power generation devices into a plurality of groups, assigns an evaluation value based on the actual results to each group, and selects the group having a high evaluation value as the control target group. The management device according to any one of claims 1 to 4. The management device according to any one of claims 1 to 5, wherein the selection unit divides a plurality of the power generation devices into a plurality of groups and selects the control target from each group. The management device according to any one of claims 1 to 6, wherein the selection unit divides the suppression period into a plurality of periods and selects the control target for each of the divided periods. A management program used in a management device that manages the power supply by multiple power generation devices.
Computer,
The power management information acquisition unit that acquires power management information indicating the suppression period for suppressing the power supply, and the power management information acquisition unit.
The actual amount information indicating the actual amount of past power generation of the power generation device, the past environmental information regarding the past environment of the facility where the power generation device is provided, and the power management information acquired by the power management information acquisition unit. An acquisition unit that acquires environmental forecast information regarding the environment of the facility during the suppression period shown.
Based on the actual amount information, the past environmental information, and the environmental forecast information acquired by the acquisition unit, the prediction unit predicts the suppressable amount, which is the amount of power that can be suppressed during the suppression period, for each power generation device. When,
Based on the actual amount indicated by the actual amount information acquired by the acquisition unit and the suppressable amount predicted by the prediction unit, the actual amount that was less than or equal to the suppressable amount or the suppressable amount for each power generation device. A selection unit that selects a control target for suppression from a plurality of the power generation devices based on the results of the amount or more .
An evaluation value assigning unit that assigns an evaluation value based on the frequency at which past power generation was an output equal to or less than the suppressable amount or greater than or equal to the suppressable amount for each of the power generation devices based on the actual amount and the suppressable amount. ,
It is a program to function as
The selection unit is a management program that preferentially selects, among the power generation devices, a power generation device having a high evaluation value given by the evaluation value assigning unit as a control target.

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