Power control device, power control method, and power control program

Abstract

To suppress a control error in a configuration for regulating reception power at a power receiving point.SOLUTION: The present invention relates to a power control device configured to regulate reception power. The power control device comprises: a control value calculation section which calculates a control command value for regulating reception power at a power receiving point; and a correction section for correcting the control command value calculated by the control value calculation section using a correction value determined according to a control apparatus which controls an apparatus under the control of the power receiving point.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a power control device, a power control method, and a power control program. [Background technology]

[0002] BACKGROUND ART Conventionally, systems have been developed that manage the supply and demand of electricity at electricity demanding facilities such as ordinary homes and offices so that the supply and demand of electricity at such facilities can be adjusted when the supply and demand of electricity is tight.

[0003] For example, Patent Document 1 (JP 2012-205358 A) discloses the following technology: That is, a power management system includes a storage unit that stores a participant list related to a community including a plurality of pre-registered participants, a determination unit that determines whether or not power reduction control needs to be executed, a selection unit that selects one or more target individuals to be subject to power reduction control from among the plurality of participants included in the participant list when the determination unit determines that power reduction control needs to be executed, a control unit that executes power reduction control for the target individuals selected by the selection unit, and an award unit that awards benefits based on reduced power to the target individuals for whom power reduction control has been executed.

[0004] Furthermore, for the purpose of saving electricity, energy management systems (EMS) are being introduced into power-consuming facilities such as homes and buildings.

[0005] An EMS is a system that monitors the amount of power consumed at an electricity demand facility and manages the operating status of the facility's equipment or facilities, thereby adjusting the supply and demand of electricity at the facility. EMS for homes is called a HEMS (Home Energy Management System), and for buildings it is called a BEMS (Building Energy Management System).

[0006] EMS adjusts power supply and demand by coordinating with businesses such as VPP (Virtual Power Plant) operators, also known as aggregators, who provide energy management support services to power demand facilities that have installed EMS. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-205358 Summary of the Invention [Problem to be solved by the invention]

[0008] A system has been proposed that adjusts the power received at the receiving point of an electric power demand facility by coordinating the operation of the EMSs at each node in a hierarchical architecture using multiple EMSs. However, when the manufacturers of the EMSs are different, there are differences in the control tendencies and characteristics of the implementation for each EMS, which can become a cause of control errors when controlling the subordinate EMSs.

[0009] The present disclosure has been made to solve the above-mentioned problems, and its purpose is to provide a power control device, a power control method, and a power control program that are capable of suppressing control errors in a configuration that adjusts received power at a receiving point. [Means for solving the problem]

[0010] The power control device of the present disclosure is a power control device that adjusts received power, and includes a control value calculation unit that calculates a control command value that adjusts the received power at the receiving point, and a correction unit that corrects the control command value calculated by the control value calculation unit using a correction value determined according to a control device that controls an device under the receiving point.

[0011] The power control method disclosed herein is a power control method in a power control device that adjusts received power, and includes a step of calculating a control command value that adjusts the received power at a receiving point, and a step of correcting the calculated control command value using a correction value that is determined according to a control device that controls an apparatus under the receiving point.

[0012] The power control program disclosed herein is a power control program used in a power control device that adjusts received power, and is a program that causes a computer to function as a control value calculation unit that calculates a control command value that adjusts the received power at the receiving point, and a correction unit that corrects the control command value calculated by the control value calculation unit using a correction value determined according to a control device that controls an device under the receiving point.

[0013] One aspect of the present disclosure can be realized not only as a power control device having such a characteristic processing unit, but also as a semiconductor integrated circuit that realizes part or all of the power control device, or as a power management system that includes the power control device. [Effects of the Invention]

[0014] According to the present disclosure, in a configuration that adjusts received power at a power receiving point, control errors can be suppressed. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a diagram illustrating a configuration of a power management system according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a diagram illustrating a configuration of a power control device in a power management system according to an embodiment of the present disclosure. [Figure 3] FIG. 3 is a diagram illustrating an example of a method for calculating a correction value in a power management system according to an embodiment of the present disclosure. [Figure 4] FIG. 4 is a diagram illustrating a configuration of a second modification of the power management system according to the embodiment of the present disclosure. [Figure 5]FIG. 5 is a flowchart illustrating an example of a procedure for receiving power control in a power management system according to an embodiment of the present disclosure. [Figure 6] FIG. 6 is a flowchart illustrating an example of a procedure for receiving power control in the second modification of the power management system according to the embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0016] First, the contents of the embodiments of the present disclosure will be listed and described.

[0017] (1) A power control device according to an embodiment of the present disclosure is a power control device that adjusts received power, and includes a control value calculation unit that calculates a control command value that adjusts the received power at a receiving point, and a correction unit that corrects the control command value calculated by the control value calculation unit using a correction value determined according to a control device that controls an device under the receiving point.

[0018] In this way, by configuring the control command value to be corrected using a correction value determined according to the control device, it is possible to absorb differences in the implementation control tendencies and characteristics that differ depending on the manufacturer of the control device, for example, and suppress control errors when controlling subordinate control devices.

[0019] (2) The power control device may further include an acquisition unit that acquires measurement results of the received power at the receiving point, and the correction value may be a value calculated based on the control command value and the corresponding measurement result for each control device.

[0020] With this configuration, it is possible to calculate a correction value that reflects the measurement result of the actual received power in response to the control command, thereby improving the control accuracy.

[0021] (3) The correction value may be a value calculated based on a difference between the control command value and the corresponding measurement result.

[0022] With this configuration, it is possible to calculate a correction value using statistical data of the measurement results of the actual received power in response to the control command, thereby further improving the control accuracy.

[0023] (4) The correction value may be a value calculated based on a probability density function of the difference value.

[0024] With this configuration, it is possible to calculate an appropriate correction value using a probability density function.

[0025] (5) The power control device may further include an acquisition unit that acquires measurement results of the received power at the receiving point, and a prediction unit that calculates a predicted value of the received power at the receiving point based on the measurement results acquired by the acquisition unit, and the control value calculation unit may calculate the control command value by optimizing a predetermined objective function based on the predicted value calculated by the prediction unit.

[0026] With this configuration, it is possible to calculate a control command value according to a planning problem that realizes minimization of energy costs, etc.

[0027] (6) The power receiving point may be a physical power receiving point of an electric power demanding facility or a virtual power receiving point based on a plurality of the power receiving points.

[0028] With this configuration, it is possible to control the received power with simple processing, regardless of the hierarchical structure of control devices such as EMS.

[0029] (7) A power control method according to an embodiment of the present disclosure is a power control method in a power control device that adjusts received power, and includes a step of calculating a control command value that adjusts the received power at a receiving point, and a step of correcting the calculated control command value using a correction value that is determined according to a control device that controls an apparatus under the receiving point.

[0030] In this way, by configuring the control command value to be corrected using a correction value determined according to the control device, it is possible to absorb differences in the implementation control tendencies and characteristics that differ depending on the manufacturer of the control device, for example, and suppress control errors when controlling subordinate control devices.

[0031] (8) A power control program according to an embodiment of the present disclosure is a power control program used in a power control device that adjusts received power, and is a program for causing a computer to function as a control value calculation unit that calculates a control command value that adjusts received power at a receiving point, and a correction unit that corrects the control command value calculated by the control value calculation unit using a correction value determined according to a control device that controls an equipment under the receiving point.

[0032] In this way, by configuring the control command value to be corrected using a correction value determined according to the control device, it is possible to absorb differences in the implementation control tendencies and characteristics that differ depending on the manufacturer of the control device, for example, and suppress control errors when controlling subordinate control devices.

[0033] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the drawings, identical or corresponding parts are designated by the same reference numerals, and their description will not be repeated. Furthermore, at least some of the embodiments described below may be combined in any manner.

[0034] [Configuration and Operation] FIG. 1 is a diagram illustrating a configuration of a power management system according to an embodiment of the present disclosure.

[0035] 1, a power management system 301 includes a power control device 101 and one or more facility-side devices 202. Although multiple power demanding facilities are shown in FIG. 1, only one power demanding facility may be provided. Furthermore, although three devices 252 are representatively shown corresponding to the facility-side devices 202, a larger or smaller number of devices 252 may be provided corresponding to the facility-side devices 202.

[0036] The facility-side device 202 is, for example, an EMS (Energy Management System) and is used in power demand facilities such as buildings, factories, offices, and general homes that receive power from a power company. One facility-side device 202 may be provided for each power demand facility, or multiple facility-side devices 202 may be provided for each power demand facility. The power company is, for example, a power generation company or an electricity retailer.

[0037] In the power management system 301, adjustments of power supply and demand, such as peak cutting and optimal control, are performed at power demand facilities.

[0038] More specifically, the power control device 101 is operated by, for example, an aggregator, and adjusts the supply and demand of power at one or more power demanding facilities by communicating with one or more facility-side devices 202. The power control device 101 is often installed, for example, at a location remote from the power demanding facility where the facility-side device 202 is installed.

[0039] The facility-side device 202 can control one or more devices 252 at the power demanding facility. The devices 252 are loads such as generators such as solar power generation devices or wind power generation devices, storage batteries, or air conditioners. The power meter 251 measures the received power at the power receiving point RE1 of the power demanding facility, i.e., the power received from the grid.

[0040] The facility-side device 202 acquires the measurement results of the power meter 251, for example, periodically, and transmits measurement information indicating the measurement results to the power control device 101.

[0041] The power control device 101 adjusts the received power at a power receiving point RE1 of a power demanding facility. More specifically, the power control device 101 accumulates measurement information received from a facility-side device 202 and calculates a predicted value of future received power at the power receiving point RE1 of the facility-side device 202 based on the accumulated measurement results. Then, the power control device 101 calculates a control command value for adjusting the received power at the power receiving point RE1 based on the calculated predicted value and transmits the control command value to the facility-side device 202. The power control device 101 calculates the predicted value and the control command value, for example, periodically. The received power and the control command value are expressed in units of, for example, power energy.

[0042] The facility-side device 202 controls the device 252 in accordance with the control command value received from the power control device 101, thereby adjusting the supply and demand of power at the power demanding facility.

[0043] In addition, the power management system 301 may be configured such that, for example, when the supply and demand of power is tight or there is a risk of tightness, or when surplus power occurs or there is a risk of surplus power, a demand response (DR) is issued for each consumer to adjust its power consumption, i.e., a DR to suppress or promote power consumption in each consumer, and the DR is used as a trigger to calculate a control command value. In this case, the calculation of the predicted value and the control command value in the power control device 101 is performed irregularly.

[0044] FIG. 2 is a diagram illustrating a configuration of a power control device in a power management system according to an embodiment of the present disclosure.

[0045] 2, the power control device 101 includes an acquisition unit 1, a prediction unit 2, a control value calculation unit 3, a correction unit 4, a transmission unit 5, and a storage unit 6. The acquisition unit 1, the prediction unit 2, the control value calculation unit 3, the correction unit 4, and the transmission unit 5 are realized by a processor such as a CPU (Central Processing Unit) and a DSP (Digital Signal Processor), for example. The storage unit 6 is, for example, a non-volatile memory.

[0046] The acquisition unit 1 acquires the measurement result of the received power at the power receiving point RE1. More specifically, the acquisition unit 1 receives measurement information transmitted periodically, such as every minute or every 30 minutes, from the facility device 202, and stores it in the storage unit 6. Note that the measurement information may indicate other information in addition to the received power, such as the amount of power generated by the generator and the amount of charge and discharge of the storage battery.

[0047] The prediction unit 2 calculates a predicted value of the received power at the power receiving point RE1 based on the measurement results acquired by the acquisition unit 1.

[0048] More specifically, the prediction unit 2 predicts future received power by performing a predetermined calculation on the received power values ​​indicated by each piece of measurement information stored in the storage unit 6, and stores the predicted values ​​in the storage unit 6. For example, the prediction unit 2 calculates the average value of received power for the same time period for the past four days as the predetermined calculation. The future includes, for example, a period from one to two hours from now to 40 hours from now. The granularity of the prediction is, for example, in 30-minute or 10-minute increments. The prediction unit 2 calculates predicted values ​​for 24 hours in one processing.

[0049] The control value calculation unit 3 calculates a control command value for adjusting the received power at the receiving point RE1 based on the predicted value calculated by the prediction unit 2.

[0050] More specifically, the control value calculation unit 3 acquires future predicted values ​​stored in the storage unit 6. The future refers to, for example, 24 hours or 40 hours ahead. Based on the acquired predicted values, the control value calculation unit 3 determines control command values ​​for each frame in 30-minute increments, for example.

[0051] Specifically, the control value calculation unit 3 achieves peak shaving by calculating the control command value in the following sequence. First, the above predicted value is set as the initial value of the control command value for each frame. Next, for all frames, a frame whose predicted value exceeds a preset maximum value of received power is found. Next, the excess amount is subtracted from the predicted value of that frame, and this is used as the control command value for that frame. Next, the excess amount is assigned to the frame that has the largest value obtained by subtracting the predicted value from the maximum value, among the other frames. The above sequence is then continued until the control command values ​​for all frames are equal to or less than the maximum value. With this method, the control command value is represented by the target value of received power at the receiving point.

[0052] The control value calculation unit 3 is not limited to the above, and may be configured to obtain the control command value using a solver, which is a processing program that solves a problem of optimizing an objective function under constraint conditions.

[0053] The control command value may also be expressed as a difference value from a reference value of received power. The reference value of received power is a value calculated from past actual values ​​of received power according to a predetermined formula. The predetermined formula is, for example, a formula for calculating the average value for the same time period over the past four days.

[0054] The corrector 4 corrects the control command value calculated by the control value calculator 3 using a correction value determined according to the control device, that is, the facility device 202, that controls the device under the control of the power receiving point RE1.

[0055] The corrector 4 outputs the corrected control command value to the transmitter 5, and also stores it in the memory 6 with a timestamp.

[0056] For example, the correction value is a value calculated based on the control command value and the corresponding measurement result for each control device, that is, facility-side device 202 .

[0057] More specifically, the correction unit 4 analyzes past control command values ​​and measurement results of received power relative to those control command values. For example, the correction unit 4 performs an analysis using control command values ​​and corresponding measurement results over a one-month period. The correction unit 4 identifies any upward or downward trends from past control commands and their results, and adds a correction value according to that trend to the control command value.

[0058] For example, the correction value is stored in advance as a fixed value in the storage unit 6. Also, for example, the correction value is calculated and updated every time the control device, that is, the facility-side device 202, is replaced.

[0059] Here, an example of a method for calculating the correction value will be described. As a trend over one month, for example, if a control command value is an instruction to reduce the current received power by 100, it is assumed that the received power has tended to go from 1000 to 800 before and after the control command. In this case, the result of issuing the control command is a decrease of 200.

[0060] In other words, the control command value was to decrease the value by 100, but the actual value decreased by 200, so the actual value exceeded the normal limit. In this case, the amount of increase (negative value) is -100 (=100-200). Therefore, the correction unit 4 adds the amount of increase (-100) as a correction value to the control command value before correction, and sets the result as the control command value.

[0061] That is, the correction unit 4 analyzes the results of past control commands, estimates whether the results are over or under deviation, and estimates the amount of over or under deviation. Then, the correction unit 4 adds or subtracts the estimated amount of over or under deviation as a correction value to or from the control command value, and provides the result to the facility-side device 202 as the control command value.

[0062] The correction unit 4 may be configured to perform the above-described analysis in real time. For example, the correction unit 4 may be configured to calculate the above-described correction value each time a measurement result is obtained. Alternatively, the above-described analysis may be performed manually using a terminal device or the like.

[0063] 3 is a diagram illustrating an example of a method for calculating a correction value in a power management system according to an embodiment of the present disclosure. In FIG. 3, the horizontal axis represents the difference obtained by subtracting the actual value of received power from the control command value, and the vertical axis represents the probability density function of the difference.

[0064] The correction value is a value calculated based on a difference between a control command value and a corresponding measurement result, for example, based on a probability density function of the difference.

[0065] Specifically, Figure 3 shows the normal distribution obtained when the inventor of the present application performed a Smirnoff-Grubbs test on the difference between the control command value issued from the control system that bundles two consumers and the actual measured value for the control systems of the two consumers.

[0066] If the command value and the actual value are the same, it is expressed as zero; if the actual value is below the target value, it is expressed as a positive value; if it is above the target value, it is expressed as a negative value.

[0067] The error may be higher or lower, but in this example, the average is higher. While there are various causes and characteristics of the error, it is thought that there is a tendency for the manufacturer to implement it.

[0068] That is, the inventors of the present application have discovered that one of the problems is that, in relation to the relationship between a control instruction from one system to another system and the response to the control instruction, i.e., the control performance, the control performance tends to fluctuate either upward or downward.

[0069] In the example shown in FIG. 3, for example, for the facility-side device 202 corresponding to graphs G1 and G2, the correction unit 4 subtracts, from the control command value calculated by the control value calculation unit 3, a correction value of, for example, 20 at which the probability density function is approximately maximized.

[0070] The correction unit 4 is not limited to a probability density function of the difference value between the control command value and the corresponding measurement result, and may be configured to calculate, for example, the average value of the difference value or the most frequent value of the difference value as the correction value.

[0071] Referring back to FIG. 2, the transmitter 5 transmits the control command value received from the corrector 4 to the corresponding facility-side device 202 .

[0072] The facility-side device 202 adjusts the supply and demand of power at the power demanding facility by controlling the device 252 in accordance with the control command value received from the transmitter 5. The control period is, for example, 10 seconds. This allows for fine-grained temporal control of the control command value, which is updated every 30 minutes, for example, to compensate for any deviation from the prediction by the predictor 2, and control the received power at the power receiving point RE1 to a constant value in accordance with the control command value.

[0073] [Variation 1] The control value calculation unit 3 calculates a control command value by optimizing a predetermined objective function based on the predicted value of the received power.

[0074] More specifically, in addition to predicting the received power, the prediction unit 2 predicts future solar radiation based on, for example, solar radiation information at the location where the solar power generation device is installed, and predicts the amount of power generated by solar power generation. Note that the prediction unit 2 may be configured to obtain solar radiation information from a solar radiation meter at the power demand facility where the solar power generation device is installed. In this case, the prediction unit 2 predicts future solar radiation from past solar radiation data. Furthermore, the prediction unit 2 may be configured to use solar radiation prediction data provided by the Japan Meteorological Agency or other service providers.

[0075] The control value calculation unit 3 creates a planning problem for the power demanding facility based on the predicted value of received power and the amount of power generated by solar power generation calculated by the prediction unit 2, and calculates a control command value in accordance with the created planning problem.

[0076] The planning problem is, for example, a planning problem of resources, i.e., devices 252, at an electricity demanding facility in order to minimize electricity costs. Note that the planning problem may also be, for example, a planning problem of minimizing carbon dioxide emissions or a planning problem of minimizing peak power.

[0077] Electricity costs consist, for example, of peak power demand, purchased power, and generator fuel costs. The operation plan, which is the solution to the planning problem, is a control plan for each time period, such as 30 or 10 minutes, regarding generator start and stop control, battery charge and discharge control, and load suppression control. The planning problem is expressed by an objective function to be minimized or maximized, and a conditional expression that serves as a constraint on the objective function. The conditional expression is, for example, in the form of a linear expression.

[0078] The control value calculation unit 3 calculates the value of each variable in the objective function by optimizing, i.e., minimizing or maximizing, the objective function under the constraint conditions, and obtains a control command value that is a solution to the planning problem. In the case of the objective function of electricity cost, the constraint conditions are, for example, constraints such as an upper limit on the output of a generator at an electricity demand facility or a constraint such as an upper limit on the charging and discharging of a storage battery.

[0079] [Variation 2] FIG. 4 is a diagram illustrating a configuration of a second modification of the power management system according to the embodiment of the present disclosure.

[0080] In the second modification, the power receiving point that is the direct target of the control command value is a virtual power receiving point RE22 that is based on the physical power receiving point RE1 of each of the plurality of power demanding facilities.

[0081] Specifically, referring to FIG. 4, the power management system 302 includes a power control device 101, an intermediate device 212, and one or more facility-side devices 202.

[0082] In the power management system 302, the power control device 101 gives a control command to the facility-side device 202 via an intermediate device 212 that is a device separate from the device that directly controls the resources in the power demanding facility.

[0083] More specifically, the intermediate device 212 is provided between the power control device 101 and each facility-side device 202. The power receiving point RE22 of the intermediate device 212 is a virtual power receiving point that combines the physical power receiving points RE1 of each facility-side device 202 subordinate to the intermediate device 212.

[0084] Each facility-side device 202 periodically acquires the measurement results of the power meter 251 and transmits measurement information indicating the measurement results to the intermediate device 212 .

[0085] The intermediate device 212 transmits the measurement information received from each facility device 202 to the power control device 101 .

[0086] For example, the power control device 101 accumulates the total value of the received power indicated by each piece of measurement information received from the intermediate device 212 as the measurement result of the received power at the power receiving point RE22, and calculates a predicted value of the future received power at the power receiving point RE22 of the intermediate device 212 based on the accumulated measurement results. Then, the power control device 101 calculates a control command value based on the calculated predicted value and transmits it to the intermediate device 212.

[0087] Based on the control command value received from the power control device 101, the intermediate device 212 calculates a control command value for each facility device 202, for example by proportionally dividing the control command value, and transmits the calculated control command value to each facility device 202.

[0088] Each facility-side device 202 controls equipment 252 in accordance with the control command value received from intermediate device 212, thereby adjusting the supply and demand of power at the corresponding power demanding facility.

[0089] That is, in the power control device 101, an acquisition unit 1 acquires measurement results at a power receiving point RE1 of each of a plurality of power demanding facilities.

[0090] The prediction unit 2 calculates a predicted value of received power at the virtual power receiving point RE22 based on each measurement result acquired by the acquisition unit 1. For example, the prediction unit 2 calculates a predicted value of received power at the power receiving point RE22 based on the total value of the measurement results of received power at each power receiving point RE1.

[0091] The control value calculation unit 3 calculates a control command value at the virtual power receiving point RE22 based on the predicted value calculated by the prediction unit 2.

[0092] The correction unit 4 corrects the control command value using a correction value determined according to the control device, i.e., intermediate device 212, that controls multiple control devices, i.e., facility-side devices 202, which respectively control devices 252 in multiple power demand facilities.

[0093] In this way, in the power management system 302, the power control device 101 corrects the control command value based on the difference in the tendencies and characteristics of the intermediate device 212, rather than the difference in the tendencies and characteristics of each facility-side device 202, i.e., the received power of the power receiving point RE22 directly below is the target for adjustment.

[0094] The power management system 302 may be configured to include multiple intermediate devices 212 arranged in one hierarchical layer relative to the power control device 101, or may be configured to include multiple intermediate devices 212 forming multiple hierarchical layers relative to the power control device 101.

[0095] [Operation flow] Each device in the power management system according to the embodiment of the present disclosure includes a computer, and a processing unit such as a CPU in the computer reads and executes a program including some or all of the steps in the following sequence diagram from a memory (not shown). The programs for each of these devices can be installed externally. The programs for each of these devices are distributed in a state where they are stored on a recording medium.

[0096] FIG. 5 is a flowchart illustrating an example of a procedure for receiving power control in a power management system according to an embodiment of the present disclosure.

[0097] Referring to FIG. 5, in the power management system 301, first, the power control device 101 acquires the measurement result of the received power at the power receiving point RE1 of the facility-side device 202 (step S1).

[0098] Next, the power control device 101 calculates a predicted value of the received power at the receiving point RE1 based on the acquired measurement results (step S2).

[0099] Next, the power control device 101 calculates a control command value for the received power at the receiving point RE1 based on the calculated predicted value (step S3).

[0100] Next, the power control device 101 acquires a correction value determined according to the facility-side device 202, which is a control device (step S4).

[0101] Next, the power control device 101 corrects the calculated control command value using the correction value of the corresponding facility-side device 202 (step S5).

[0102] Next, the power control device 101 transmits the corrected control command value to the corresponding facility-side device 202 (step S6).

[0103] FIG. 6 is a flowchart illustrating an example of a procedure for receiving power control in the second modification of the power management system according to the embodiment of the present disclosure.

[0104] 6, in the power management system 302, first, the power control device 101 acquires the measurement result of the received power at the power receiving point RE1 of each facility-side device 202 under the control of the intermediate device 212 (step S11).

[0105] Next, the power control device 101 calculates a predicted value of the received power at the power receiving point RE22 based on the acquired measurement results (step S12).

[0106] Next, the power control device 101 calculates a control command value for the received power at the power receiving point RE22 based on the calculated predicted value (step S13).

[0107] Next, the power control device 101 acquires a correction value determined according to the intermediate device 212, which is a control device (step S14).

[0108] Next, the power control device 101 corrects the calculated control command value using the correction value of the corresponding intermediate device 212 (step S15).

[0109] Next, the power control device 101 transmits the corrected control command value to the corresponding intermediate device 212 (step S16).

[0110] Next, the intermediate device 212 calculates a control command value for each facility device 202 based on the control command value received from the power control device 101, for example by apportioning the control command value, and transmits the calculated control command value to each facility device 202 (step S17).

[0111] In the power control device according to the embodiment of the present disclosure, the control value calculation unit 3 is configured to calculate a control command value for adjusting the received power at the power receiving point based on the predicted value calculated by the prediction unit 2, but this is not limited to this. The control value calculation unit 3 may be configured to calculate the control command value not only based on the predicted value of the received power at the power receiving point, but also based on some other condition, such as an external command value. In this case, the power control device 101 may be configured without including the acquisition unit 1 and the prediction unit 2.

[0112] Furthermore, in the power control device according to the embodiment of the present disclosure, the correction value is a value calculated based on the control command value and the corresponding measurement result, but this is not limited to this and the correction value may be a value calculated by some other calculation method.

[0113] Furthermore, some or all of the functions of the power control device according to the embodiment of the present disclosure may be provided by cloud computing, i.e., the power control device according to the embodiment of the present disclosure may be configured by a plurality of cloud servers or the like.

[0114] The above-described embodiments should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the above description, and is intended to include all modifications within the meaning and scope of the claims.

[0115] The above description includes the following additional features. [Appendix 1] A power control device that adjusts received power, an acquisition unit that acquires measurement results of received power at a power receiving point; a prediction unit that calculates a predicted value of received power at the power receiving point based on the measurement result acquired by the acquisition unit; a control value calculation unit that calculates a control command value for adjusting the received power at the power receiving point based on the predicted value calculated by the prediction unit; a correction unit that corrects the control command value calculated by the control value calculation unit using a correction value determined according to a control device that controls a device under the power receiving point, the power receiving point is a virtual power receiving point based on physical power receiving points of a plurality of power demanding facilities, the acquisition unit acquires the measurement results at the power receiving points of each of the plurality of power demanding facilities, the prediction unit calculates a predicted value of received power at the virtual power receiving point based on the measurement results acquired by the acquisition unit; the control value calculation unit calculates the control command value at the virtual power receiving point, the correction unit corrects the control command value using a correction value determined in accordance with a plurality of control devices that control a plurality of control devices, each of which controls a device in the plurality of power demanding facilities; The power control device, wherein the correction value is updated every time the control device is replaced. [Explanation of symbols]

[0116] 1 Acquisition part 2. Prediction Department 3. Control value calculation section 4 Correction section 5. Transmitter 6 Memory section 101 Power control device 202 Facility equipment 212 Intermediate equipment 251 Electricity Meter 252 Equipment 301,302 Power Management System RE1, RE22 receiving point

Claims

1. A power control device that adjusts received power, a control value calculation unit that calculates a control command value for adjusting the received power at the power receiving point; a correction unit that corrects the control command value calculated by the control value calculation unit using a correction value determined according to a control device that controls a device under the power receiving point, the power receiving point is a virtual power receiving point based on physical power receiving points of a plurality of power demanding facilities, The correction unit corrects the control command value using the correction value determined according to the control devices that control a plurality of facility-side devices that respectively control devices in the plurality of power demanding facilities.

2. The power control device further comprises: an acquisition unit that acquires a measurement result of received power at the power receiving point; The power control device according to claim 1 , wherein the correction value is a value calculated based on the control command value and the corresponding measurement result for each of the control devices.

3. The power control device according to claim 2 , wherein the correction value is a value calculated based on a difference between the control command value and the corresponding measurement result.

4. A power control device that adjusts received power, a control value calculation unit that calculates a control command value for adjusting the received power at the power receiving point; a correction unit that corrects the control command value calculated by the control value calculation unit using a correction value determined according to a control device that controls a device under the power receiving point; an acquisition unit that acquires a measurement result of received power at the power receiving point, A power control device, wherein the correction value is a value calculated based on a probability density function of a difference value between the control command value and the corresponding measurement result for each of the control devices.

5. A power control device that adjusts received power, a control value calculation unit that calculates a control command value for adjusting the received power at the power receiving point; a correction unit that corrects the control command value calculated by the control value calculation unit using a correction value determined according to a control device that controls a device under the power receiving point; an acquisition unit that acquires a measurement result of received power at the power receiving point; a prediction unit that calculates a predicted value of received power at the power receiving point based on the measurement result acquired by the acquisition unit, The control value calculation unit calculates the control command value by optimizing a predetermined objective function based on the predicted value calculated by the prediction unit.

6. A power control method in a power control device that adjusts received power, comprising: calculating a control command value for adjusting the received power at the power receiving point; correcting the calculated control command value using a correction value determined according to a control device that controls a device under the power receiving point; the power receiving point is a virtual power receiving point based on physical power receiving points of a plurality of power demanding facilities, a power control method, in which, in the step of correcting the control command value, the control command value is corrected using the correction value determined in accordance with the control devices that control a plurality of facility-side devices that respectively control equipment in the plurality of power demanding facilities.

7. A power control method in a power control device that adjusts received power, comprising: calculating a control command value for adjusting the received power at the power receiving point; correcting the calculated control command value using a correction value determined according to a control device that controls a device under the power receiving point; acquiring a measurement result of the received power at the power receiving point; A power control method, wherein the correction value is a value calculated based on a probability density function of a difference value between the control command value and the corresponding measurement result for each of the control devices.

8. A power control method in a power control device that adjusts received power, comprising: calculating a control command value for adjusting the received power at the power receiving point; correcting the calculated control command value using a correction value determined according to a control device that controls a device under the power receiving point; acquiring a measurement result of the received power at the power receiving point; and calculating a predicted value of received power at the power receiving point based on the acquired measurement result, A power control method, wherein in the step of calculating the control command value, the control command value is calculated by optimizing a predetermined objective function based on the calculated predicted value.

9. A power control program used in a power control device that adjusts received power, Computer, a control value calculation unit that calculates a control command value for adjusting the received power at the power receiving point; a correction unit that corrects the control command value calculated by the control value calculation unit using a correction value that is determined depending on a control device that controls a device under the power receiving point; It is a program to function as the power receiving point is a virtual power receiving point based on physical power receiving points of a plurality of power demanding facilities, The correction unit corrects the control command value using the correction value determined according to the control devices that control a plurality of facility-side devices that respectively control equipment in the plurality of power demanding facilities.

10. A power control program used in a power control device that adjusts received power, comprising: Computer, a control value calculation unit that calculates a control command value for adjusting the received power at the power receiving point; a correction unit that corrects the control command value calculated by the control value calculation unit using a correction value determined according to a control device that controls a device under the power receiving point; an acquisition unit that acquires a measurement result of the received power at the power receiving point; It is a program to function as A power control program, wherein the correction value is a value calculated based on a probability density function of a difference value between the control command value and the corresponding measurement result for each of the control devices.

11. A power control program used in a power control device that adjusts received power, comprising: Computer, a control value calculation unit that calculates a control command value for adjusting the received power at the power receiving point; a correction unit that corrects the control command value calculated by the control value calculation unit using a correction value determined according to a control device that controls a device under the power receiving point; an acquisition unit that acquires a measurement result of received power at the power receiving point; a prediction unit that calculates a predicted value of received power at the power receiving point based on the measurement result acquired by the acquisition unit; It is a program to function as a control value calculation unit that calculates the control command value by optimizing a predetermined objective function based on the predicted value calculated by the prediction unit;

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