JP2018081646A - Power saving control method and power saving control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power saving control method for appropriately evaluating a power saving amount.SOLUTION: A power saving control method includes: a step (a) of transmitting a power saving request; a step (b) of calculating a baseline; and a step (c) of calculating a reward on the basis of a difference between actual power consumption of a power load and the baseline. In the step (b), a first baseline in the shortest first power saving period is calculated on the basis of a mean value of power consumption of the power load in several periods having the same time zone as the first power saving period in several past days, and a second baseline in a second power saving period different from the first power saving period is calculated on the basis of a mean value of power consumption of the power load in several periods having the same time zone as the second power saving period in several past days.SELECTED DRAWING: Figure 5

Description

  The present disclosure relates to a power saving control method and the like for controlling power saving.

  Patent Document 1 discloses a demand response system that notifies an event for requesting suppression of power demand and calculates an incentive based on a difference between a baseline and an actual measured value of power usage.

Japanese Patent Laying-Open No. 2015-186397

  However, there is a possibility that the amount of power consumption may fluctuate regardless of the power saving performed in response to the power saving request, and it is not easy to appropriately evaluate the power saving amount.

  In view of the above circumstances, an exemplary embodiment aims to provide a power saving control method and the like that can appropriately evaluate a power saving amount.

  The power saving control method according to an aspect of the present disclosure includes a step (a) of transmitting a power saving request for requesting the consumer to save power in a plurality of power saving periods, and the plurality of power savings of the consumer. Calculating a baseline of the power consumption of the power load in each of the periods, and a difference between the actual power consumption of the power load in each of the plurality of power saving periods of the consumer and the baseline And calculating a reward to the customer based on the step (c). In the step (b), the first baseline in the shortest first power saving period among the plurality of power saving periods is calculated. And calculating based on an average value of the power consumption of the power load in a plurality of periods having the same time zone as the first power saving period in a plurality of past days, and among the plurality of power saving periods, the first power saving period The second baseline in the second power saving period that is different from the second power saving period is calculated based on the average value of the power consumption of the power load in the plurality of periods in the same time zone as the second power saving period in the past multiple days. To do.

  Note that these comprehensive or specific aspects may be realized by a system, apparatus, method, integrated circuit, computer program, or non-transitory recording medium such as a computer-readable CD-ROM. The present invention may be realized by any combination of an apparatus, a method, an integrated circuit, a computer program, and a recording medium.

  The power saving amount can be appropriately evaluated by the power saving control device or the like according to an aspect of the present disclosure.

FIG. 1 is a transition diagram showing a power saving flow in the reference example. FIG. 2 is a graph showing changes in power in the reference example. FIG. 3 is a block diagram illustrating an environment including the power saving control system according to the first embodiment. FIG. 4 is a block diagram showing a modification of the environment including the power saving control system in the first embodiment. FIG. 5 is a flowchart showing the operation of the power saving control system in the first embodiment. FIG. 6 is a block diagram illustrating an environment including the power saving control system according to the second embodiment. FIG. 7 is a block diagram illustrating a modification of the environment including the power saving control system according to the second embodiment. FIG. 8 is a flowchart showing the operation of the power saving control system in the second embodiment.

(Knowledge that became the basis of this disclosure)
This inventor discovered the subject regarding the power saving performed with respect to a power saving request | requirement. This will be specifically described below.

  FIG. 1 is a transition diagram showing a power saving flow in the reference example. FIG. 1 shows an electric power company, an aggregator, and a store. An electric power company is a company that sells electric power, and generates electric power, transmits power, and distributes electric power. The aggregator is an operator that mediates between an electric power company and a consumer, and manages electric power. For example, an aggregator urges consumers to save electricity and provides negawatts to an electric power company when power supply and demand is tight. A store is an example of a consumer and sells products. For example, the store is a convenience store or a supermarket.

  For example, the store periodically transmits power information indicating the power consumption to the aggregator. The aggregator receives power information periodically from the store.

  Then, the power company transmits a power saving request for the power saving period to the aggregator before the start of the power saving period. That is, a power saving request for the power saving period is issued. The power saving period is a period in which tightness of power supply and demand is expected. The aggregator receives a power saving request from the power company and transmits the power saving request to the store. The store receives a power saving request from the aggregator.

  In the store, power saving is performed during the power saving period based on the power saving request. During the power saving period, the store periodically transmits power information to the aggregator, and the aggregator periodically receives power information from the store.

  Then, after the end of the power saving period, the aggregator calculates a reward based on the power saving amount in the store. At this time, the aggregator calculates a reward based on the difference between the power consumption indicated by the power information received before the power saving request and the power consumption indicated by the power information received during the power saving period. More specifically, the aggregator calculates the baseline based on the power consumption before the power saving request, and calculates the reward based on the difference between the baseline and the power consumption during the power saving period. Then, the aggregator gives the calculated reward to the store.

  The difference between the power consumption before the start of the power saving period and the power consumption during the power saving period is assumed to be the power consumption reduced by the power saving, and is assumed to correspond to the power saving. However, by increasing the power consumption from the issuance of a power saving request to the start of the power saving period and returning the power consumption to the original value during the power saving period, the power saving amount is unreasonably increased and the reward is calculated high. Not appropriate. Therefore, the aggregator calculates a reward based on the difference between the power consumption before the power saving request and the power consumption during the power saving period.

  FIG. 2 is a graph showing changes in power in the reference example. FIG. 2 shows the power of the refrigeration equipment, the power of other equipment, and the total power of the refrigeration equipment and other equipment. The refrigeration equipment is equipment for freezing or refrigeration, and may be a showcase for freezing or refrigeration, a refrigerator, a refrigerator, or the like. In particular, the refrigeration equipment performs a defrosting operation regularly or irregularly. The other device is an electric device different from the refrigeration device, such as an air conditioner. In addition, when there are a plurality of electrical devices different from the refrigerated devices in the store, the other devices may be at least one of them.

  In this example, among a plurality of power saving requests having different power saving periods, a power saving request having a relatively short power saving period is performed at the immediately preceding timing, and the baseline is set based on the power consumption in the immediately preceding period of the power saving request. Calculated. That is, the period immediately before the power saving request is a period for calculating the baseline, and a value equivalent to the total power in the immediately preceding period is calculated as the baseline.

  The length of the power saving period, which is a relatively short time, is, for example, from 30 minutes to 2 hours. The timing immediately before the power saving period is the latest timing with respect to the power saving period, for example, the timing from one hour before the power saving period to the start of the power saving period. The period immediately before the power saving request is, for example, a period that ends at a time point between one hour before the power saving request and the power saving request. The length of the period immediately before the power saving request is, for example, 10 minutes to 6 hours. The length of the period immediately before the power saving request may be defined based on the length of the power saving period.

  Basically, if it is necessary to save electricity urgently, it is assumed that there is not enough time for preparation for saving electricity and the power saving period is relatively short. Therefore, if the power saving period is relatively short, the power saving request is highly likely to be transmitted at a timing immediately before the power saving period.

  Further, in this example, the period immediately before the power saving request is included in the period of the defrosting operation of the refrigeration equipment. That is, the period for calculating the baseline is included in the period of the defrosting operation of the refrigeration equipment. The refrigeration equipment stops the cooling operation in order to melt the frost in the defrosting operation. Therefore, in the defrosting operation, the power consumed by the refrigeration equipment is reduced, and the total power consumed by the refrigeration equipment and other equipment is also reduced.

  Further, in this example, the defrosting operation of the refrigeration equipment ends between the issuance of the power saving request and the start of the power saving period. Thereafter, the temperature that has been raised by stopping the cooling operation is restored again to a lower temperature, so that the power consumed by the refrigeration equipment temporarily becomes larger than usual. As a result, the total power consumed by the refrigeration equipment and other equipment temporarily increases.

  In this example, since the period for calculating the baseline is included in the period of the defrosting operation of the refrigeration equipment, the baseline is calculated to be low. Moreover, since the power saving period and the period in which the power consumed by the refrigeration equipment temporarily increases partially, the total power in the power saving period is basically large.

  Therefore, even if the power consumed by other devices is reduced in the power saving period, it is difficult to make the total power smaller than the baseline calculated based on the total power in the immediately preceding period. Also, in this example, a baseline that is too low is calculated, but a baseline that is too high may be calculated with large fluctuations in power. Then, there is a possibility that the power saving amount corresponding to the power reduced by the power saving is not properly evaluated and the power saving is not appropriately performed.

  Although the above is an example of a refrigeration apparatus, the same problem may occur for other power loads with respect to a power load having a plurality of operation modes with a large difference in power consumption. In particular, when the operation mode in which the power consumption is relatively small among the plurality of operation modes is not a power-saving operation but one of the normal operation modes such as defrosting of the above-described cooling equipment, The above problem becomes more prominent because it is difficult to distinguish it as an operational operation.

  Therefore, the power saving control method according to an aspect of the present disclosure includes a step (a) of transmitting a power saving request for requesting the consumer to save power in a plurality of power saving periods, and the plurality of consumers. Calculating the baseline of the power consumption of the power load in each of the power saving periods of the power consumption, and the baseline between the actual power consumption of the power load in each of the plurality of power saving periods of the consumer and the baseline (C) calculating a reward to the customer based on the difference, and in the step (b), the first base in the shortest first power saving period among the plurality of power saving periods A line is calculated based on an average value of power consumption of a power load in a plurality of periods having the same time zone as the first power saving period in a plurality of past days, and among the plurality of power saving periods, the first The second baseline in the second power saving period that is different from the power saving period is based on the average value of the power consumption of the power load in the plurality of periods in the same time zone as the second power saving period in the past multiple days. To calculate.

  Accordingly, the baseline is calculated based on the average value of the past plural days regardless of whether or not it is the shortest power saving period. In particular, even for the shortest power-saving period where a power-saving request is most likely to be made at the most recent timing, the baseline is calculated based on the average value over the past days, not the period immediately before the power-saving request. . Thereby, even in an environment where the fluctuation of power is large, it is possible to suppress the baseline from being too low or too high. Therefore, it is possible to appropriately evaluate the power saving amount.

  For example, in the step (b), the first baseline includes a first power load including a cooling device in a plurality of periods having the same time zone as the first power saving period in a plurality of past days. Calculated based on an average value of power consumption of a second power load different from the first power load, and the second baseline is the same as the second power saving period and time zone in the past multiple days You may calculate based on the average value of the power consumption of the said 1st electric power load and the said 2nd electric power load of several periods.

  Thereby, the power consumption amount of the first power load including the refrigeration equipment is not distinguished from the power consumption amount of the second power load. Therefore, it is possible to simply calculate the baseline.

  In addition, for example, in the step (b), the first baseline includes the first power including the refrigeration equipment in a plurality of periods having the same time zone as the first power saving period in a plurality of past days. Calculated based on the average power consumption of the load and the power consumption of the second power load different from the first power load before the first power saving period on the same day as the first power saving period. The second baseline is the average of the power consumption amounts of the first power load and the second power load in a plurality of periods in the same time zone as the second power saving period in a plurality of past days. You may calculate based on the value.

  As a result, the power consumption averaged over a plurality of past days is used for the calculation of the baseline with respect to the power consumption of the first power load including the refrigeration equipment having large fluctuations in the power consumption. For the power consumption of the second power load with small fluctuations in the power consumption, the power consumption of the same day close to the power saving period is used for calculating the baseline. Therefore, an appropriate baseline is calculated.

  Further, for example, the second power load may include an air conditioner.

  Thereby, it is possible to appropriately calculate the baseline in an environment including the cooling equipment and the air conditioning equipment.

  In addition, a power saving control system according to an aspect of the present disclosure includes a transmitter that transmits a power saving request that requests a consumer to save power in a plurality of power saving periods, and the plurality of power savings of the consumer. A first calculator for calculating a baseline of the power consumption of the power load in each of the periods; and a difference between the actual power consumption of the power load in each of the plurality of power saving periods of the consumer and the baseline And a second calculator for calculating a reward to the customer based on the first calculator, wherein the first calculator is a first calculator in the shortest first power saving period among the plurality of power saving periods. A baseline is calculated based on an average value of power consumption of power loads in a plurality of periods having the same time zone as the first power saving period in a plurality of past days. 1 power saving period and A second baseline in the second power saving period is calculated based on an average value of power consumption of a power load in a plurality of periods having the same time zone as the second power saving period in a plurality of past days. A power saving control system may be used.

  Thereby, the power saving control system can calculate the baseline based on the average value of the past plural days regardless of the shortest power saving period or another power saving period.

  In particular, even for the shortest power-saving period where a power-saving request is most likely to be made at the most recent timing, the baseline is calculated based on the average value over the past days, not the period immediately before the power-saving request. . Thereby, the power saving control system can suppress that the baseline is too low or too high even in an environment where the fluctuation of power is large. Therefore, the power saving control system can appropriately evaluate the power saving amount.

  The program according to an aspect of the present disclosure may be a program for causing a computer to execute the power saving control method.

  Thus, a power saving control method for appropriately evaluating the power saving amount is realized as a program.

  Note that these comprehensive or specific aspects may be realized by a system, apparatus, method, integrated circuit, computer program, or non-transitory recording medium such as a computer-readable CD-ROM. The present invention may be realized by any combination of an apparatus, a method, an integrated circuit, a computer program, or a recording medium.

  Hereinafter, embodiments will be specifically described with reference to the drawings. It should be noted that each of the embodiments described below shows a comprehensive or specific example. Numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps, order of steps, and the like shown in the following embodiments are merely examples, and are not intended to limit the present disclosure. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept are described as optional constituent elements.

  In terms of expression, ordinal numbers such as first and second may be added to, replaced with, or removed from the components. The power consumption amount may correspond to the total power amount in a predetermined period, or may correspond to the power that is the power amount per unit time. Moreover, electric power and electric energy may mean those values.

  A store is used to mean a place where goods are sold, a building where goods are sold, and a business operator that sells goods. A store is also an example of a consumer who receives power supply. Store may also mean store staff and owner.

(Embodiment 1)
FIG. 3 is a block diagram showing an environment including the power saving control system in the present embodiment. For example, the transmitter 111, the first calculator 112, the second calculator 113, and the storage device 114 are used and managed by the aggregator. The transmitter 111, the first calculator 112, and the second calculator 113 constitute a power saving control system 110. A display 201, a power detector 202, a controller 203, a first power load 204, and a second power load 205 are installed in the store.

  The transmitter 111 is an example of a transmitter according to the present disclosure, and is a communication device that transmits a power saving request for requesting the customer to save power during the power saving period. That is, the transmitter 111 issues a power saving request. The transmitter 111 can also be expressed as a power saving request issuing unit.

  Specifically, the transmitter 111 may include a terminal for performing wired communication or an antenna for performing wireless communication. Further, the transmitter 111 may include an arithmetic processing unit and a storage unit for controlling communication. The arithmetic processor may be an MPU or a CPU. The storage device may be a volatile memory or a non-volatile memory. A communication control program may be stored in the storage device.

  For example, the transmitter 111 transmits a power saving request to the display 201 of the store by wired or wireless communication. As a result, a power saving request is displayed on the display 201 and the store staff or the like is prompted to save power. The transmitter 111 may transmit a power saving request when receiving an instruction from the aggregator, may transmit a power saving request when receiving a power saving request from an electric power company, or when a power shortage is predicted. A power saving request may be transmitted to

  In addition, the transmitter 111 transmits a plurality of power saving requests for requesting consumers to save power in a plurality of power saving periods at a plurality of timings. Each of the plurality of timings is a timing that is relatively defined with respect to the power saving period.

  For example, the transmitter 111 transmits a first power saving request for requesting a user to save power in a first power saving period at a first timing, and demands power saving in a second power saving period at a second timing. A second power saving request for requesting the house is transmitted. The first power saving period is the shortest power saving period, and the second power saving period is another power saving period different from the shortest power saving period. Further, when there are a plurality of other power saving periods different from the first power saving period, the second power saving period may be at least one of them. Further, the second power saving period is longer than the first power saving period.

  The first power saving period, which is the shortest power saving period, is, for example, a period of 2 hours or less. The second power saving period that is not the shortest power saving period is, for example, a period exceeding 2 hours.

  The first calculator 112 is an example of a first calculator of the present disclosure, and is a calculator that calculates a baseline. The first calculator 112 can also be expressed as a baseline calculator. The first calculator 112 may include an arithmetic processing unit and a storage unit for calculation processing. The arithmetic processor may be an MPU or a CPU. The storage device may be a volatile memory or a non-volatile memory. The storage device may store a calculation processing program.

  Here, the baseline is a reference power consumption amount for evaluating the power saving amount in the power saving period. The power saving amount can also be expressed as a power saving effect. The larger the value obtained by subtracting the actual power consumption from the baseline, the greater the power saving. The first calculator 112 calculates a plurality of baselines for a plurality of power saving periods. For example, the first calculator 112 calculates a first baseline for a first power saving period corresponding to the first power saving request, and for a second power saving period corresponding to the second power saving request. To calculate the second baseline.

  Further, the first calculator 112 may transmit the baseline information indicating the baseline to the store display 201 in order to notify the store staff or the like of the baseline calculated for the power saving period. For example, the first calculator 112 calculates a baseline before the power saving period, and transmits the baseline information to the display 201 of the store, thereby reducing power consumption for making the power consumption smaller than the baseline. May be urged to store staff.

  The second calculator 113 is an example of a second calculator of the present disclosure, and is a calculator that calculates a reward. The second calculator 113 can also be expressed as a power saving fee calculation unit. The second calculator 113 may include an arithmetic processing unit and a storage unit for calculation processing. The arithmetic processor may be an MPU or a CPU. The storage device may be a volatile memory or a non-volatile memory. The storage device may store a calculation processing program.

  Here, the reward can be expressed as a power saving fee. The reward corresponds to the amount of power saving. Specifically, the higher the power saving amount, the higher the reward. That is, calculating the reward appropriately corresponds to appropriately evaluating the power saving amount.

  For example, the second calculator 113 calculates the reward based on the difference between the baseline calculated by the first calculator 112 and the actual power consumption during the power saving period. Further, the second calculator 113 may transmit reward information indicating the calculated reward to the store display 201 in order to notify the calculated reward to the staff of the store.

  The storage device 114 is a storage for storing information. The storage device 114 may include a volatile memory or a nonvolatile memory for storing power information, and may also be expressed as a power information storage unit. For example, the storage device 114 stores and accumulates power information indicating the power consumption amounts of the first power load 204 and the second power load 205. The power information may indicate the total power consumption of the power loads including the first power load 204 and the second power load 205.

  Specifically, the power detector 202 detects the power consumption amounts of the first power load 204 and the second power load 205. Then, power information indicating the power consumption amounts of the first power load 204 and the second power load 205 is transmitted by the controller 203 and stored in the storage device 114. The power information stored in the storage device 114 is used for the calculation of the baseline in the first calculator 112 and the calculation of the reward in the second calculator 113.

  The display device 201 is an output device that displays information. For example, the display unit 201 displays power saving information related to power saving, and can be expressed as a power saving information display unit. The display 201 may include a cathode ray tube, a liquid crystal display, a projector, or the like for displaying information. The display unit 201 may include an arithmetic processing unit and a storage unit for controlling display. The arithmetic processor may be an MPU or a CPU. The storage device may be a volatile memory or a non-volatile memory. A display control program may be stored in the storage device.

  For example, the display unit 201 receives and displays a power saving request transmitted from the transmitter 111 before the start of the power saving period. The store staff or the like saves power during the power saving period based on the power saving request displayed on the display 201. Moreover, the display device 201 may receive and display the reward information transmitted from the second calculator 113 after the end of the power saving period. Further, the display device 201 may receive and display the baseline information transmitted from the first calculator 112.

  The power detector 202 is a detector that detects power consumption, and is, for example, a power meter installed in a store. The power detector 202 may be a smart meter including a communication device that transmits power information indicating the detected power consumption. For example, the power detector 202 detects the power consumption of the first power load 204 and the second power load 205 at regular time intervals, and the controller 203 displays power information indicating the detected power consumption. Send to.

  The controller 203 is a controller for controlling power consumption and the like. The controller 203 may include an arithmetic processor and a storage device. The arithmetic processor may be an MPU or a CPU. The storage device may be a volatile memory or a non-volatile memory. A control program may be stored in the storage device. The controller 203 may be configured by a single controller that performs centralized control, or may be configured by a plurality of controllers that perform distributed control in cooperation with each other.

  For example, the controller 203 receives power information indicating the power consumption detected by the power detector 202 and transmits it to the aggregator at regular time intervals. Thus, the controller 203 stores and accumulates power information indicating the power consumption detected by the power detector 202 in the aggregator storage device 114 at regular time intervals. Further, the controller 203 controls the power consumption of the first power load 204 and the second power load 205 by controlling the operations of the first power load 204 and the second power load 205. Good.

  The 1st electric power load 204 is an example of the 1st electric power load of this indication, and is an electric power load containing refrigeration equipment. More specifically, the first power load 204 includes one or more cooling devices and does not include other devices different from the cooling devices.

  The refrigeration equipment is equipment for freezing or refrigeration, and may be a showcase for freezing or refrigeration, a refrigerator, a refrigerator, or the like. In particular, the refrigeration equipment performs a defrosting operation regularly or irregularly. For example, the first power load 204 includes a freezing or refrigerated showcase, a refrigerator, a refrigerator, and the like.

  The second power load 205 is an example of the second power load of the present disclosure, and is a power load different from the first power load 204. That is, the second power load 205 is a power load that does not include the refrigeration equipment, and that includes other equipment different from the refrigeration equipment. More specifically, the second power load 205 includes one or more other devices different from the refrigeration equipment, and does not include the refrigeration equipment.

  For example, the second power load 205 includes an air conditioner. The second power load 205 may further include a lighting device, a copy machine, an ATM (Automated Teller Machine), a POS (Point Of Sale) register, a warmer, a cooker, a microwave oven, and the like.

  FIG. 4 is a block diagram showing a modification of the environment shown in FIG. In this example, the transmitter 111 transmits a power saving request to the controller 203 of the store. The controller 203 receives the power saving request from the transmitter 111, and controls the operations of the first power load 204 and the second power load 205 based on the power saving request, whereby the first power load 204 and the second power load 204 are controlled. The power consumption of the power load 205 is reduced.

  The controller 203 may stop the operation of one or more devices out of the first power load 204 and the second power load 205 in order to reduce power consumption during the power saving period corresponding to the power saving request. One or more devices may be operated in the energy saving mode. For example, the controller 203 transmits a control command for reducing power consumption to one or more devices during the power saving period. Each of the one or more devices receives the control command and changes the operation according to the control command. Thereby, power consumption is reduced.

  In addition, the controller 203 may transmit a power saving request to the display device 201. The display device 201 may receive and display the power saving request transmitted from the controller 203. Thereby, a power saving request is notified to the store staff and the like. That is, the store staff or the like is notified that power saving control is performed based on the power saving request.

  In this example, the second calculator 113 calculates a reward, and transmits reward information indicating the calculated reward to the controller 203 of the store. The controller 203 receives the reward information from the second calculator 113 and transmits it to the display 201. The display 201 receives and displays the reward information transmitted from the controller 203. Thereby, the reward is notified to the staff of the store.

  Further, the first calculator 112 may calculate a baseline and transmit baseline information indicating the calculated baseline to the controller 203 of the store. Then, the controller 203 may receive the baseline information from the first calculator 112 and transmit it to the display unit 201. The display unit 201 may receive and display the baseline information transmitted from the controller 203. Thereby, the base line is notified to the staff of the store.

  In this modification, power saving is automatically performed based on a power saving request even if store staff or the like does not manually save power. Therefore, power saving is performed smoothly. Further, the controller 203 can centrally manage various information. Therefore, communication is controlled and complication of the communication environment is suppressed.

  FIG. 5 is a flowchart showing the operation of the power saving control system 110 in the environment shown in FIG. 3 or FIG.

  First, the transmitter 111 transmits a power saving request for requesting a consumer to start power saving (S101). The transmitter 111 transmits a plurality of power saving requests for a plurality of power saving periods to the consumer. For example, the transmitter 111 transmits a first power saving request for the shortest first power saving period. In addition, the transmitter 111 transmits a second power saving request for a second power saving period that is different from the shortest first power saving period.

  Next, the first calculator 112 calculates a baseline of the power consumption of the power load during the power saving period (S102). At this time, regardless of whether or not the power saving period is the shortest, the first calculator 112 calculates the amount of power consumption of the power load in a plurality of periods in the past that have the same time period as the power saving period. Baseline is calculated based on the average value.

  Here, the power saving period is a period during which power is saved by the consumer in response to a power saving request. The power consumption of the power load is the power consumption of the first power load 204 and the second power load 205. Further, the time zone corresponds to the time zone in one day, and corresponds to the portion excluding the date in the period.

  For example, the first calculator 112 calculates the baseline in the shortest power saving period based on the average value of the power consumption of the power load in a plurality of periods having the same time zone as the power saving period in the past plural days. Calculate. In other words, the first calculator 112 uses the first baseline in the first power saving period, which is the shortest power saving period, as a plurality of the same time zone as the first power saving period in the past multiple days. Calculate based on the average power consumption of the power load over the period.

  The first calculator 112 matches the baseline in the shortest power saving period with the average value of the power consumption of the power load in a plurality of periods having the same time zone as the power saving period in the past plural days. It may be calculated. In other words, the first calculator 112 uses the first baseline in the shortest first power saving period as the power load in a plurality of periods in the same time zone as the first power saving period in the past multiple days. It may be calculated so as to coincide with the average value of the power consumption.

  In addition, for example, the first calculator 112 calculates a baseline in another power saving period that is different from the shortest power saving period, and the power load of a plurality of periods in the same time zone as the power saving period in the past multiple days. Calculated based on the average power consumption. In other words, the first calculator 112 calculates the second baseline in the second power saving period, which is different from the shortest first power saving period, and the second power saving period and time zone in the past plural days. Is calculated based on the average value of the power consumption of the power load in the same period.

  The first calculator 112 calculates a baseline in another power saving period that is different from the shortest power saving period, and represents the power consumption amount of the power load in a plurality of periods in the same time zone as the power saving period in the past multiple days. You may calculate so that it may correspond with an average value. In other words, the first calculator 112 calculates the second baseline in the second power saving period, which is different from the shortest first power saving period, and the second power saving period and time zone in the past plural days. May be calculated so as to coincide with the average value of the power consumption of the power load in the same plurality of periods.

  Next, in response to the power saving request, the power is saved by the consumer (S103). For example, power saving such as stopping the operation of one or more devices included in the power load or operating one or more devices included in the power load in the energy saving mode is performed. The power saving process itself may not be performed by the power saving control system 110. There is also a possibility that power will not be saved depending on the judgment of the customer.

  The first calculator 112 may perform the baseline calculation (S102) after the power saving (S103), not before the power saving (S103).

  Next, the second calculator 113 calculates a reward to the consumer based on the difference between the actual power consumption of the power load during the power saving period of the consumer and the baseline (S104). For example, a value obtained by subtracting the actual power consumption amount from the baseline corresponds to the power saving amount. The second calculator 113 calculates a higher reward as the power saving amount is larger.

  As described above, the power saving control system 110 determines the average power consumption amount of the power load in a plurality of periods having the same time period as the power saving period in a plurality of past days, regardless of whether or not the power saving period is the shortest. Baseline is calculated based on the value. This is based on the following reason.

  Basically, the difference between the power consumption before the start of the power saving period and the power consumption during the power saving period is assumed to be the power consumption reduced by the power saving, and is assumed to correspond to the power saving. However, by increasing the power consumption from the issuance of a power saving request to the start of the power saving period and returning the power consumption to the original value during the power saving period, the power saving amount is unreasonably increased and the reward is calculated high. Not appropriate. Therefore, the power saving control system 110 calculates the baseline based on the power consumption before the power saving request.

  Here, if the power saving period is long, it is assumed that it takes time to prepare for power saving. Basically, the power saving request is transmitted at a timing earlier than the latest timing with respect to the power saving period. It can be said that a timing earlier than the latest timing is a timing before the latest timing. Therefore, the time from the issuance of the power saving request to the start of the power saving period is long, and the power consumption may change between the issuance of the power saving request and the start of the power saving period. Therefore, the power saving control system 110 calculates a baseline for such a power saving period based on the average value of the power consumption of the power load in a plurality of periods having the same time zone as the power saving period in a plurality of past days. .

  The average value of the power consumption of the power load in a plurality of periods having the same time zone as the power saving period in the past multiple days is assumed to be a normal power consumption in the power saving period. Accordingly, the power saving control system 110 appropriately evaluates the power saving amount by calculating the baseline based on the average power consumption in the past even if the time from the issuance of the power saving request to the start of the power saving period is long. Thus, the compensation can be calculated appropriately.

  On the other hand, if the power saving period is short, it is assumed that it will not take time to prepare for power saving. Basically, the power saving request is transmitted at the latest timing. For this reason, the time from the issuance of the power saving request to the start of the power saving period is short, and the difference between the power consumption amount immediately before the power saving request and the power consumption amount in the power saving period is assumed to correspond to the power saving amount. Therefore, the baseline in the short power saving period may basically be calculated based on the power consumption in the period immediately before the power saving request that is close in time to the power saving period.

  However, in an environment where the change in power consumption is large as shown in FIG. 2, the difference between the power consumption immediately before the power saving request and the power consumption in the power saving period may not correspond to the power saving. Therefore, even if the power saving period is a short time, the power saving control system 110 uses the baseline based on the average value of the power consumption of the power load in a plurality of periods in the same time zone as the power saving period in the past plural days. Is calculated.

  Accordingly, the baseline is calculated based on the past averaged power consumption, and the baseline is suppressed from being excessively large or small. For example, the baseline is prevented from becoming too small due to the defrosting operation of the refrigeration equipment. In addition, the power consumption characteristics based on the time zone are reflected in the baseline.

  That is, the power saving control system 110 is based on the average value of the power consumption of the power load in a plurality of periods with the same time period as the power saving period in a plurality of past days, regardless of whether or not the power saving period is short. To calculate the baseline. Accordingly, the power saving control system 110 can appropriately evaluate the power saving amount and appropriately calculate the reward.

  In addition, in the calculation of the average value of the power consumption amount, the day when the power consumption amount is small may be excluded. For example, the first calculator 112 calculates four periods in the past five days that have the same power saving period and time zone on four days when the power consumption of the power load in the same period as the power saving period is large. The baseline may be calculated based on the average power consumption of the power loads.

  Thereby, possibility that the excessively small power consumption in the period of the defrosting operation | movement of a refrigeration apparatus will be excluded from the information for calculating a baseline will increase. Therefore, the power saving control system 110 can more appropriately suppress the baseline from becoming too small due to the defrosting operation of the refrigeration equipment.

(Embodiment 2)
In the present embodiment, the baseline is calculated by a method different from that in the first embodiment. This will be specifically described below. In the following description, the same description as in the first embodiment may be omitted.

  FIG. 6 is a block diagram showing an environment including a power saving control system in the present embodiment. In the present embodiment, a power saving control system 110a, a first calculator 112a, a storage device 114a, a power detector 202a, and a controller 203a are different from those in the first embodiment. Other components are the same as those in the first embodiment.

  The first calculator 112a is an example of the first calculator of the present disclosure, and is a calculator that calculates a baseline. The first calculator 112a is basically the same as the first calculator 112 of the first embodiment, but the baseline calculation method is different. The baseline calculation method will be described later with reference to FIG.

  The storage device 114a is a storage for storing information. The storage device 114a is basically the same as the storage device 114 of the first embodiment, but the storage device 114a includes the power consumption amount of the first power load 204 and the power consumption amount of the second power load 205. Is stored and accumulated. That is, the storage device 114a stores and accumulates power information separately indicating each of the power consumption amount of the first power load 204 and the power consumption amount of the second power load 205.

  For example, each of the power consumption of the first power load 204 and the power consumption of the second power load 205 is separately detected by the power detector 202a. Then, power information separately indicating the power consumption amount of the first power load 204 and the power consumption amount of the second power load 205 is transmitted by the controller 203a and stored in the storage device 114a. Then, the power information stored in the storage device 114a is used for the calculation of the baseline in the first calculator 112a and the calculation of the reward in the second calculator 113.

  Note that the power information indicating the power consumption amount of the first power load 204 and the power consumption amount of the second power load 205 is the power information of the first power load 204 and the second power load 205, respectively. Information capable of deriving each of the power consumption amount may be used. For example, the power information indicating each of the power consumption of the first power load 204 and the power consumption of the second power load 205 is the total power consumption of the first power load 204 and the second power load 205. And the power consumption amount of the first power load 204 may be shown.

  The power detector 202a is a detector that detects the amount of power consumption, and is, for example, a power meter installed in a store. The power detector 202a is basically the same as the power detector 202 of the first embodiment, but detects each of the power consumption of the first power load 204 and the power consumption of the second power load 205. To do.

  For example, the power detector 202a detects each of the power consumption amount of the first power load 204 and the power consumption amount of the second power load 205 at regular time intervals. Then, the power detector 202a transmits power information indicating the power consumption amount of the first power load 204 and the power consumption amount of the second power load 205 to the controller 203a.

  The power detector 202a may detect the total power consumption of the first power load 204 and the second power load 205 and the power consumption of the first power load 204, respectively. Then, the power detector 202a may detect the difference between the total power consumption and the power consumption of the first power load 204 as the power consumption of the second power load 205.

  The controller 203a is a controller for controlling power consumption and the like. The controller 203a is basically the same as the controller 203 of the first embodiment, but power information indicating each of the power consumption amount of the first power load 204 and the power consumption amount of the second power load 205. Is received from the power detector 202a and transmitted to the aggregator. As a result, the controller 203a stores and accumulates power information indicating the power consumption of the first power load 204 and the power consumption of the second power load 205 in the storage device 114a of the aggregator.

  FIG. 7 is a block diagram showing a modification of the environment shown in FIG. In the present modification, the power saving control system 110a, the first calculator 112a, the storage device 114a, the power detector 202a, and the controller 203a are different from the modification shown in FIG. Other components are the same as those of the modification shown in FIG. That is, a modification similar to the modification of the environment in the first embodiment can be applied to the environment in the present embodiment. Specifically, since it is the same as FIG. 4, detailed description is omitted.

  FIG. 8 is a flowchart showing the operation of the power saving control system 110a in the environment shown in FIG. 6 or FIG.

  The processing of power saving request transmission (S201), power saving (S203) and reward calculation (S204) in the present embodiment shown in FIG. 8 is performed in the same manner as in the first embodiment shown in FIG. S101), power saving (S103), and reward calculation (S104) are the same. The process of calculating the baseline (S202) in the present embodiment shown in FIG. 8 is different from the process of calculating the baseline (S102) in the first embodiment shown in FIG.

  In the calculation of the baseline shown in FIG. 8 (S202), the first calculator 112a calculates the baseline of the power consumption of the power load during the power saving period.

  For example, the first calculator 112a sets the baseline in the shortest power saving period, the average value (α) of the power consumption of the first power load 204, and the power consumption of the second power load 205 ( Based on β).

  Here, the average value (α) of the power consumption amount of the first power load 204 for calculating the baseline is the first power load in a plurality of periods having the same time period as the power saving period in a plurality of past days. It is an average value of power consumption of 204. The power consumption amount (β) of the second power load 205 for calculating the baseline is the power consumption amount of the second power load 205 before the power saving period on the same day as the power saving period.

  The power consumption amount (β) of the second power load 205 for calculating the baseline may be the power consumption amount of the second power load 205 in the period immediately before the power saving request. The period immediately before the power saving request is, for example, a period that ends at a time point between one hour before the power saving request and the power saving request. The length of the period immediately before the power saving request is, for example, 10 minutes to 6 hours. The length of the period immediately before the power saving request may be defined based on the length of the power saving period.

  In other words, the first calculator 112a uses the first baseline in the first power saving period, which is the shortest power saving period, as an average value (α) of the power consumption of the first power load 204. And based on the power consumption (β) of the second power load 205.

  Here, the average value (α) of the power consumption amount of the first power load 204 for calculating the first baseline is a plurality of periods having the same time zone as the first power saving period in the past days. Is the average value of the power consumption of the first power load 204. The power consumption amount (β) of the second power load 205 for calculating the first baseline is the consumption of the second power load 205 before the first power saving period on the same day as the first power saving period. The amount of power.

  The power consumption amount (β) of the second power load 205 for calculating the first baseline may be the power consumption amount of the second power load 205 in the period immediately before the first power saving request. The period immediately before the first power saving request is, for example, a period that ends at a time point between one hour before the first power saving request and the power saving request. The length of the period immediately before the first power saving request is, for example, from 10 minutes to 6 hours. The length of the period immediately before the first power saving request may be defined based on the length of the first power saving period.

  The first calculator 112a sets the baseline in the shortest power saving period, the average value (α) of the power consumption of the first power load 204 and the power consumption (β) of the second power load 205. You may calculate so that it may correspond with the sum total. In other words, the first calculator 112a determines the first baseline in the shortest first power saving period, the average value (α) of the power consumption amount of the first power load 204, and the second power. You may calculate so that it may correspond with the sum total with the power consumption ((beta)) of the load 205. FIG.

  The first calculator 112a calculates a baseline in another power saving period different from the shortest power saving period based on the average value of the power consumption of the power load. Here, the average value of the power consumption amount of the power load for calculating the baseline is the first power load 204 and the second power load in a plurality of periods having the same time period as the power saving period in a plurality of past days. This is an average value of power consumption of 205.

  In other words, the first calculator 112a calculates the second baseline in the second power saving period different from the shortest first power saving period based on the average value of the power consumption of the power load. . Here, the average value of the power consumption amount of the power load for calculating the second baseline is the first power load 204 in a plurality of periods having the same time zone as the second power saving period in the past plural days. And the average power consumption of the second power load 205.

  The first calculator 112a calculates a baseline of another power saving period that is different from the shortest power saving period, and represents the power consumption amount of the power load of a plurality of periods in the same time zone as the power saving period in the past multiple days. You may calculate so that it may correspond with an average value. In other words, the first calculator 112a uses the second baseline in the second power saving period, which is different from the first power saving period in the shortest time, as the plurality of power saving periods and time zones in the past plural days. You may calculate so that it may correspond to the average value of the power consumption of the electric power load of the period.

  By the above operation, in the calculation of the baseline in the shortest power saving period, the power consumption averaged over the past multiple days is used for the power consumption with large fluctuations, and the power consumption with small fluctuations is used. The power consumption of the same day that is close to the power saving period is used. In addition, in calculating the baseline in another power saving period different from the shortest power saving period, the power consumption averaged over the past plural days is used.

  Thus, the power saving control system 110a can calculate the baseline based on the characteristics of the two types of power consumption and whether or not the power saving period is short. Basically, if the power saving period is short, it does not take time to prepare for power saving, so the time from when the power saving request is issued until the start of the power saving period is short. Therefore, the power saving control system 110a can appropriately calculate the baseline based on the characteristics of the two types of power consumption and the time from the issuing of the power saving request to the start of the power saving period.

  Thus, the power saving control system 110a can appropriately evaluate the power saving amount and appropriately calculate the reward.

  Note that, in the same way as in the first embodiment, in the calculation of the average value of the power consumption amount, the day when the power consumption amount is small may be excluded. For example, the first calculator 112a has four periods with the same power saving period and time zone on the four days when the power consumption of the power load in the same period as the power saving period is large among the past five days. The baseline may be calculated based on the average power consumption of the power loads. Here, the power consumption of the power load may be the power consumption of the first power load 204 or the power consumption of the first power load 204 and the second power load 205.

  Thereby, possibility that the excessively small power consumption in the period of the defrosting operation | movement of a refrigeration apparatus will be excluded from the information for calculating a baseline will increase. Therefore, the power saving control system 110a can more appropriately suppress the baseline from becoming too small due to the defrosting operation of the refrigeration equipment.

  As described above, the power saving control system and the like according to the present disclosure can appropriately evaluate the power saving amount.

  In the above embodiment, each component may be configured by dedicated hardware or may be realized by executing a software program suitable for each component. Each component may be realized by a program executor such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory. Here, the software that implements the power saving control system of the above embodiment is the following program.

  That is, the program includes a step (a) of transmitting a power saving request to the computer to request the customer to save power in a plurality of power saving periods, and each of the plurality of power saving periods of the consumer. Calculating the baseline of the power consumption amount of the power load in step (b), and based on the difference between the actual power consumption amount of the power load and the baseline in each of the plurality of power saving periods of the consumer (C) calculating a reward to the consumer, and in the step (b), the first baseline in the shortest first power saving period among the plurality of power saving periods is calculated in the past. Calculated based on an average value of power consumption of a plurality of power loads in a plurality of periods having the same time zone as the first power saving period in a plurality of days, and among the plurality of power saving periods, The second baseline in the second power saving period that is different from the power saving period is based on the average value of the power consumption of the power load in the plurality of periods in the same time zone as the second power saving period in the past multiple days. The power saving control method is calculated.

  In the above embodiment, each component may be a circuit. A plurality of components may constitute one circuit as a whole, or may constitute separate circuits. Each circuit may be a general-purpose circuit or a dedicated circuit.

  As mentioned above, although the power-saving control system etc. which concern on one or several aspects were demonstrated based on embodiment, this indication is not limited to this embodiment. Unless it deviates from the gist of the present disclosure, various modifications conceived by those skilled in the art have been made in this embodiment, and forms constructed by combining components in different embodiments are also within the scope of one or more aspects. May be included.

  For example, in the above-described embodiment, a process executed by a specific component may be executed by another component instead of the specific component. Further, the order of the plurality of processes may be changed, and the plurality of processes may be executed in parallel.

  The present disclosure can be used in a power saving control system, and can be applied to, for example, a demand response system for controlling a supply and demand balance.

110, 110a Power saving control system 111 Transmitter 112, 112a First calculator 113 Second calculator 114, 114a Memory 201 Display 202, 202a Power detector 203, 203a Controller 204 First power load 205 First 2 power load

Claims (6)

Transmitting a power saving request for requesting the customer to save power in a plurality of power saving periods;
Calculating a baseline of power consumption of a power load in each of the plurality of power saving periods of the consumer (b);
(C) calculating a reward to the consumer based on a difference between the baseline and the actual power consumption of the power load in each of the plurality of power saving periods of the consumer;
In step (b),
Of the plurality of power saving periods, the first baseline in the shortest first power saving period is the consumption of power load in a plurality of periods in the same time zone as the first power saving period in the past days. Calculated based on the average amount of power,
Among the plurality of power saving periods, a second baseline in a second power saving period that is different from the first power saving period is a plurality of periods having the same time zone as the second power saving period in a plurality of past days. Calculate based on the average power consumption of the power load.
Power saving control method. In step (b),
The first baseline is different from the first power load and the first power load including the refrigeration equipment in a plurality of periods having the same time zone as the first power saving period in a plurality of past days. Calculated based on the average value of power consumption of 2 power loads,
The second baseline is an average value of power consumption amounts of the first power load and the second power load in a plurality of periods having the same time zone as the second power saving period in a plurality of past days. Calculate based on
The power saving control method according to claim 1. In step (b),
The first baseline is
In a plurality of past days, the average value of the power consumption amount of the first power load including the refrigeration equipment in the plurality of periods having the same time zone as the first power saving period and the same day as the first power saving period Calculated based on the power consumption of the second power load different from the first power load before the first power saving period,
The second baseline is
Based on an average value of power consumption amounts of the first power load and the second power load in a plurality of periods having the same time zone as the second power saving period in a plurality of past days,
The power saving control method according to claim 1. The second power load includes air conditioning equipment.
The power saving control method according to claim 2 or 3. A transmitter for transmitting a power saving request for requesting the customer to save power in a plurality of power saving periods;
A first calculator for calculating a baseline of power consumption of a power load in each of the plurality of power saving periods of the consumer;
A second calculator for calculating a reward for the consumer based on a difference between an actual power consumption of the power load in each of the plurality of power saving periods of the consumer and the baseline;
The first calculator is
Of the plurality of power saving periods, the first baseline in the shortest first power saving period is the consumption of power load in a plurality of periods in the same time zone as the first power saving period in the past days. Calculated based on the average amount of power,
Among the plurality of power saving periods, a second baseline in a second power saving period that is different from the first power saving period is a plurality of periods having the same time zone as the second power saving period in a plurality of past days. Calculate based on the average power consumption of the power load.
Power saving control system. A program for causing a computer to execute the power saving control method according to claim 1.

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