JP2016127734A - Charge control device, electric power system, terminal device, charge control method and charge control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a charge control device, an electric power system, a terminal device, a charge control method and a charge control program, appropriately suppress the consumption of power to be supplied according to a power saving period.SOLUTION: In the charge control device for use in the electric power system, including a power generation device 31 and a power storage device 32, there is provided a controller 30 which includes: a determination unit which determines whether or not the power generation device can start power generation before the start timing of the power saving period; and a control unit which controls to start the discharge of the power storage device at timing based on the start timing, when the determination unit determines that the power generation device cannot start the power generation before the start timing.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a charge control device, a power system, a terminal device, a charge control method, and a charge control program, and in particular, a charge control device, a power system, a terminal device, and a charge that suppress consumption of power supplied in a period to save power. The present invention relates to a control method and a charge control program.

  As a system capable of suppressing the demand for power in power demand facilities such as ordinary homes and offices when the power supply and demand is expected to be tight, for example, Non-Patent Document 1 (“Demand using a“ gas cogeneration system ”) Response service trial start ”, [online], [searched on November 10, 2014], Internet <URL: http://www.osakagas.co.jp/company/press/pr_2012/1197570_5712.html>) Discloses the following technology.

  In other words, an electric power company that supplies power to a power demand facility notifies a BEMS (Building Energy Management System) aggregator or the like of information on the tightness of power supply and demand. A BEMS aggregator or the like carries out a demand response solicitation to a customer who is a customer based on the information. A consumer participating in the demand response generates negative wattage by suppressing the consumption of the power supplied from the power demand facility, for example, by increasing the power generated by the power generation device installed in the power demand facility. A BEMS aggregator or the like collects negative watts generated by a plurality of consumers and provides them to the electric utility. Electric utilities can avoid the additional power source procurement costs incurred in the event of tight power supply and demand due to negawatts. In addition, the electric power company gives a consideration to the consumer through the BEMS aggregator or the like for suppressing the consumption of electric power.

“Regarding trial start of demand response service using“ gas cogeneration system ””, [online], [November 10, 2014 search], Internet <URL: http://www.osakagas.co.jp/company /press/pr_2012/1197570_5712.html>

  By the way, the power generation device may not be able to generate a necessary amount of power during a period of power generation. And in such a case, the consumer is willing to suppress the consumption of the electric power supplied from the electric power system etc. to his / her own electric power demand facility, for the reason that the amount of the suppressed electric power is small, etc. , You may not be able to receive power savings from an electric utility.

  This invention was made in order to solve the above-mentioned subject, The objective is the charge control apparatus, electric power system, and terminal device which can suppress appropriately consumption of the electric power supplied according to a power-saving period It is to provide a charge control method and a charge control program.

  (1) In order to solve the above-described problem, a charge control device according to an aspect of the present invention is a charge control device used in an electric power system including a power generation device and a power storage device, and the above-described timing is reached by the start timing of a power saving period. A determination unit that determines whether or not the power generation device can start power generation, and the storage unit at a timing based on the start timing when the determination unit determines that the power generation device cannot start power generation by the start timing. And a control unit that performs control for starting discharge of the device.

  (3) Moreover, the charge control apparatus which concerns on another situation of this invention is a charge control apparatus used in an electric power system provided with an electric power generation device and an electrical storage device, Comprising: The said electric power generation device produces electric power using natural energy. And performing a control for limiting the discharge of the power storage device before the power saving period based on the prediction contents by the prediction unit based on the prediction contents by the prediction unit, and performing prediction regarding the power generation amount of the power generation device in part or all of the power saving period And a control unit.

  (8) In order to solve the above-described problem, an electric power system according to an aspect of the present invention includes a charge control device, a power storage device, and a power generation device, and the charge control device reaches the start timing of the power saving period. To determine whether or not the power generation device can start power generation, and when it is determined that the power generation device cannot start power generation by the start timing, to cause the power storage device to start discharging at a timing based on the start timing The discharge start instruction is transmitted to the power storage device, and the power storage device receives the discharge start instruction from the charge control device and starts discharging.

  (9) Moreover, the electric power system which concerns on another situation of this invention is equipped with an electrical storage device, the electric power generation device which produces electric power using natural energy, and the charge control apparatus which can control the said electrical storage device, The said charge The control device makes a prediction regarding the power generation amount of the power generation device in part or all of the power saving period, and limits the discharge of the power storage device before the power saving period based on its own prediction content.

  (10) In order to solve the above-described problem, a terminal device according to an aspect of the present invention is a terminal device used in an electric power system including a power generation device, a power storage device mounted on a vehicle, and a charge control device. The charging control device determines whether the power generation device can start power generation by the start timing of the power saving period, and determines that the power generation device cannot start power generation by the start timing, Created on the basis of the use schedule of the vehicle, a transmission unit that performs control to start discharging the power storage device at a timing based on the start timing, and transmits vehicle use schedule information related to the use schedule of the vehicle to the charge control device And a receiving unit for receiving, from the charging control device, information related to use of the vehicle during the power saving period. That.

  (11) In order to solve the above problem, a charge control method according to an aspect of the present invention is a charge control method in a charge control device used in a power system including a power generation device and a power storage device, and starts a power saving period The step of determining whether or not the power generation device can start power generation by the timing, and the power storage device at a timing based on the start timing when it is determined that the power generation device cannot start power generation by the start timing And a step of performing control to start discharging.

  (12) A charge control method according to another aspect of the present invention is a charge control method in a charge control device used in a power system including a power generation device and a power storage device, and the power generation device uses natural energy. Performing power generation, and predicting the power generation amount of the power generation device in part or all of the power saving period, and controlling to limit the discharge of the power storage device before the power saving period based on the content of the prediction Performing steps.

  (13) A charge control method according to another aspect of the present invention is a charge control method in a terminal device used in an electric power system including a power generation device, a power storage device mounted on a vehicle, and a charge control device. The charging control device determines whether the power generation device can start power generation by the start timing of the power saving period, and determines that the power generation device cannot start power generation by the start timing, It is generated based on a step of performing discharge control of the electricity storage device at a timing based on a start timing and transmitting vehicle use schedule information related to the use schedule of the vehicle to the charge control device, and the use schedule of the vehicle. In addition, a step of receiving information on the use of the vehicle during the power saving period from the charge control device Including the door.

  (14) In order to solve the above-described problem, a charge control program according to an aspect of the present invention is a charge control program used in a charge control device used in a power system including a power generation device and a power storage device, and a computer And determining whether or not the power generation device can start power generation by the start timing of the power saving period, and when determining that the power generation device cannot start power generation by the start timing, based on the start timing And a step of performing control for starting discharge of the electricity storage device at timing.

  (15) A charge control program according to another aspect of the present invention is a charge control program used in a charge control device used in a power system including a power generation device and a power storage device. Performing power generation using energy, and predicting a power generation amount of the power generation device in a part or all of the power saving period in a computer, and based on the content of the prediction, the power storage device before the power saving period And a step of performing a control for limiting discharge.

  (16) A charge control program according to another aspect of the present invention is a charge control used in a terminal device used in an electric power system including a power generation device, a power storage device mounted on a vehicle, and a charge control device. The charging control apparatus determines whether the power generation device can start power generation by the start timing of the power saving period, and determines that the power generation device cannot start power generation by the start timing In this case, at a timing based on the start timing, performing control to start discharging of the power storage device, transmitting vehicle use schedule information related to the use schedule of the vehicle to the charge control device, and based on the use schedule of the vehicle Information about the use of the vehicle during the power saving period created in Is a program for executing the steps of receiving from the device.

  The present invention can be realized not only as a charge control device including such a characteristic processing unit, but also as a semiconductor integrated circuit realizing part or all of the charge control device.

  ADVANTAGE OF THE INVENTION According to this invention, consumption of the electric power supplied can be suppressed appropriately according to a power saving period.

FIG. 1 is a diagram for explaining the outline of the power system according to the first embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a temporal change in power in the power system according to the first embodiment of the present invention. FIG. 3 is a diagram illustrating another example of the temporal change in power in the power system according to the first embodiment of the present invention. FIG. 4 is a diagram showing a configuration of a comparative example of the power system according to the first embodiment of the present invention. FIG. 5 is a diagram showing a configuration of the power system according to the first embodiment of the present invention. FIG. 6 is a diagram showing the configuration of the controller according to the first embodiment of the present invention. FIG. 7 is a diagram showing an example of a sequence in the power system according to the first embodiment of the present invention. FIG. 8 is a diagram showing a configuration of a power generation system according to the second embodiment of the present invention. FIG. 9 is a diagram illustrating a configuration of a controller according to the second embodiment of the present invention. FIG. 10 is a diagram showing an example of a sequence in the power system according to the second embodiment of the present invention. FIG. 11 is a diagram showing a configuration of a power system according to the third embodiment of the present invention. FIG. 12 is a diagram showing a configuration of a controller according to the third embodiment of the present invention. FIG. 13 is a diagram showing a configuration of a terminal apparatus according to the third embodiment of the present invention.

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

  (1) A charge control device according to an embodiment of the present invention is a charge control device used in a power system including a power generation device and a power storage device, and the power generation device can start power generation by the start timing of a power saving period. And a control for starting discharge of the power storage device at a timing based on the start timing when the determination unit determines that the power generation device cannot start power generation by the start timing. And a control unit for performing.

  With such a configuration, for example, by starting the use of power stored in the power storage device at the start timing of the power saving period when the power generation start of the power generation device is not in time by the start timing of the power saving period, the power system It is possible to start suppressing the consumption of the power supplied from the power supply period from the start timing of the power saving period. Therefore, consumption of the supplied power can be appropriately suppressed according to the power saving period.

  (2) Preferably, the said control part starts the said electric power generation device before the said start timing, and when the said electric power generation device starts electric power generation, it stops the discharge of the said electrical storage device.

  With such a configuration, while the power generation device is activated in advance with respect to the power saving period, after the power generation device starts power generation in the power saving period, the use of the power stored in the power storage device is stopped and the power generation device The generated power can be used. Thereby, the power generated by the power generation device can be used effectively, and the power stored in the power storage device can be used efficiently.

  (3) A charge control device according to an embodiment of the present invention is a charge control device used in a power system including a power generation device and a power storage device, and the power generation device generates power using natural energy, A prediction unit that performs prediction regarding the power generation amount of the power generation device in part or all of the power saving period, and a control unit that performs control to limit discharge of the power storage device before the power saving period based on the prediction content by the prediction unit With.

  With such a configuration, for example, when it is predicted that the power generation device cannot generate the required amount of power during the power saving period based on information such as weather forecasts, the power stored in the power storage device is reduced during the power saving period. It can be prevented that the electric power stored in the electric storage device is consumed until the power saving period starts so that the electric power can be used. Therefore, consumption of the supplied power can be appropriately suppressed according to the power saving period.

  (4) Preferably, the said control part performs control which charges the said electrical storage device before the said power saving period based on the electrical storage residual amount of the said electrical storage device.

  With such a configuration, for example, when the amount of power already stored in the power storage device is small with respect to the amount of discharge power required for the power storage device during the power saving period, the power storage device until the power saving period starts Can be charged.

  (5) Preferably, the power storage device is mounted on a vehicle, and the charge control device further outputs information on use of the vehicle during the power saving period based on a use schedule of the vehicle. A part.

  With such a configuration, for example, when a part or all of the power saving period is included in a period in which a customer plans to use the vehicle, it is recommended to change the period in which the vehicle is used to a period that does not overlap with the power saving period. Messages can be presented to consumers. And, for example, when a consumer accepts the content of the message and changes the usage period of the vehicle, for the purpose of suppressing the consumption of power supplied from the power system or the like during the power saving period, the power storage device mounted on the vehicle Electric power can be used.

  (6) Preferably, the said electrical storage device is mounted in the vehicle, and the said control part performs at least any one of charge of the said electrical storage device, and discharge restriction | limiting based on the estimated driving distance of the said vehicle.

  With such a configuration, for example, when a period in which a customer intends to use a vehicle is set after a power saving period, and the electric power stored in the power storage device is used in the power saving period, the use of the vehicle When there is a possibility that the remaining amount of electricity stored in the electricity storage device may be insufficient, it is possible to charge the electricity storage device before the start of the power saving period, or to limit the amount of power discharged by the electricity storage device during the power saving period.

  (7) Preferably, the determination unit determines whether or not the power generation device can start power generation by the end timing of the power saving period, and the control unit generates power by the power generation device by the end timing. When the determination unit determines that the power generation device cannot be started, the power generation device is not activated.

  In this way, unnecessary start-up of the power generation device can be avoided by the configuration that does not start the power generation device when the power generation start by the power generation device is not in time for the end timing of the power saving period.

  (8) An electric power system according to an embodiment of the present invention includes a charge control device, a power storage device, and a power generation device, and the charge control device starts power generation by the start timing of a power saving period. If it is determined whether or not the power generation device can start power generation by the start timing, a discharge start instruction for causing the power storage device to start discharge at a timing based on the start timing is determined. The power storage device receives the discharge start instruction from the charge control device and starts discharging.

  With such a configuration, for example, when the power generation start of the power generation device is not in time by the start timing of the power saving period, the use of the power stored in the power storage device is started at the start timing of the power saving period. Consumption of power supplied from the system or the like can be suppressed from the start timing of the power saving period. Therefore, consumption of the supplied power can be appropriately suppressed according to the power saving period.

  (9) An electric power system according to an embodiment of the present invention includes an electric storage device, an electric power generation device that generates electric power using natural energy, and a charge control device capable of controlling the electric storage device, and the charge control device Performs prediction regarding the power generation amount of the power generation device in part or all of the power saving period, and restricts the discharge of the power storage device before the power saving period based on its own prediction content.

  With such a configuration, for example, when it is predicted that the power generation device cannot generate the required amount of power during the power saving period based on information such as weather forecasts, the power stored in the power storage device is reduced during the power saving period. It can be prevented that the electric power stored in the electric storage device is consumed until the power saving period starts so that the electric power can be used. Therefore, consumption of the supplied power can be appropriately suppressed according to the power saving period.

  (10) A terminal device according to an embodiment of the present invention is a terminal device used in a power system including a power generation device, a power storage device mounted on a vehicle, and a charge control device, wherein the charge control device is Determining whether the power generation device can start power generation by the start timing of the power saving period, and when determining that the power generation device cannot start power generation by the start timing, at a timing based on the start timing, In the power saving period, which is created based on the vehicle use schedule, a transmission unit that performs control to start discharging the power storage device and transmits vehicle use schedule information related to the vehicle use schedule to the charge control device A receiving unit that receives information on the use of the vehicle from the charging control device.

  With such a configuration, for example, when the power generation start of the power generation device is not in time by the start timing of the power saving period, the use of the power stored in the power storage device is started at the start timing of the power saving period. Consumption of power supplied from the system or the like can be suppressed from the start timing of the power saving period. In addition, for example, if a customer plans to use a vehicle includes part or all of the power saving period, a message recommending that the period of vehicle use be changed to a period that does not overlap with the power saving period. Can be presented to consumers. And, for example, when a consumer accepts the content of the message and changes the usage period of the vehicle, for the purpose of suppressing the consumption of power supplied from the power system or the like during the power saving period, the power storage device mounted on the vehicle Electric power can be used. Therefore, consumption of the supplied power can be appropriately suppressed according to the power saving period.

  (11) A charge control method according to an embodiment of the present invention is a charge control method in a charge control device used in an electric power system including a power generation device and a power storage device, and the power generation device is connected by a start timing of a power saving period. A step of determining whether or not power generation can be started, and a control for starting discharge of the power storage device at a timing based on the start timing when it is determined that the power generation device cannot start power generation by the start timing. Performing steps.

  With such a configuration, for example, when the power generation start of the power generation device is not in time by the start timing of the power saving period, the use of the power stored in the power storage device is started at the start timing of the power saving period. Consumption of power supplied from the system or the like can be suppressed from the start timing of the power saving period. Therefore, consumption of the supplied power can be appropriately suppressed according to the power saving period.

  (12) A charge control method according to an embodiment of the present invention is a charge control method in a charge control device used in a power system including a power generation device and a power storage device, wherein the power generation device uses natural energy. Performing power generation and performing prediction regarding the power generation amount of the power generation device in part or all of the power saving period, and performing control for limiting discharge of the power storage device before the power saving period based on the prediction content Including.

  With such a configuration, for example, when it is predicted that the power generation device cannot generate the required amount of power during the power saving period based on information such as weather forecasts, the power stored in the power storage device is reduced during the power saving period. It can be prevented that the electric power stored in the electric storage device is consumed until the power saving period starts so that the electric power can be used. Therefore, consumption of the supplied power can be appropriately suppressed according to the power saving period.

  (13) A charge control method according to an embodiment of the present invention is a charge control method in a terminal device used in an electric power system including a power generation device, a power storage device mounted on a vehicle, and a charge control device, The charging control device determines whether the power generation device can start power generation by the start timing of the power saving period, and determines that the power generation device cannot start power generation by the start timing, the start timing At the timing based on, the control to start discharging the power storage device, the step of transmitting vehicle use schedule information regarding the use schedule of the vehicle to the charging control device, and created based on the use schedule of the vehicle, Receiving from the charging control device information related to the use of the vehicle during the power saving period. No.

  With such a configuration, for example, when the power generation start of the power generation device is not in time by the start timing of the power saving period, the use of the power stored in the power storage device is started at the start timing of the power saving period. Consumption of power supplied from the system or the like can be suppressed from the start timing of the power saving period. In addition, for example, if a customer plans to use a vehicle includes part or all of the power saving period, a message recommending that the period of vehicle use be changed to a period that does not overlap with the power saving period. Can be presented to consumers. And, for example, when a consumer accepts the content of the message and changes the usage period of the vehicle, for the purpose of suppressing the consumption of power supplied from the power system or the like during the power saving period, the power storage device mounted on the vehicle Electric power can be used. Therefore, consumption of the supplied power can be appropriately suppressed according to the power saving period.

  (14) A charge control program according to an embodiment of the present invention is a charge control program used in a charge control device used in an electric power system including a power generation device and a power storage device, and the computer starts a power saving period. Determining whether or not the power generation device can start power generation by the time, and when determining that the power generation device cannot start power generation by the start timing, at a timing based on the start timing, And a step of performing control for starting discharge.

  With such a configuration, for example, when the power generation start of the power generation device is not in time by the start timing of the power saving period, the use of the power stored in the power storage device is started at the start timing of the power saving period. Consumption of power supplied from the system or the like can be suppressed from the start timing of the power saving period. Therefore, consumption of the supplied power can be appropriately suppressed according to the power saving period.

  (15) A charge control program according to an embodiment of the present invention is a charge control program used in a charge control device used in a power system including a power generation device and a power storage device, wherein the power generation device Performing power generation using the computer, and predicting a power generation amount of the power generation device in a part or all of the power saving period, and discharging the power storage device before the power saving period based on the content of the prediction. A program for executing a step of performing control to be restricted.

  With such a configuration, for example, when it is predicted that the power generation device cannot generate the required amount of power during the power saving period based on information such as weather forecasts, the power stored in the power storage device is reduced during the power saving period. It can be prevented that the electric power stored in the electric storage device is consumed until the power saving period starts so that the electric power can be used. Therefore, consumption of the supplied power can be appropriately suppressed according to the power saving period.

  (16) A charge control program according to an embodiment of the present invention is a charge control program used in a terminal device used in an electric power system including a power generation device, a power storage device mounted on a vehicle, and a charge control device. The charging control device determines whether the power generation device can start power generation by the start timing of the power saving period, and determines that the power generation device cannot start power generation by the start timing, Created based on the step of performing the control to start discharging the power storage device at the timing based on the start timing, and transmitting vehicle use schedule information related to the use schedule of the vehicle to the charge control device; Information regarding use of the vehicle during the power saving period is stored in the charging control device. Is a program for executing the steps of al received.

  With such a configuration, for example, when the power generation start of the power generation device is not in time by the start timing of the power saving period, the use of the power stored in the power storage device is started at the start timing of the power saving period. Consumption of power supplied from the system or the like can be suppressed from the start timing of the power saving period. In addition, for example, if a customer plans to use a vehicle includes part or all of the power saving period, a message recommending that the period of vehicle use be changed to a period that does not overlap with the power saving period. Can be presented to consumers. And, for example, when a consumer accepts the content of the message and changes the usage period of the vehicle, for the purpose of suppressing the consumption of power supplied from the power system or the like during the power saving period, the power storage device mounted on the vehicle Electric power can be used. Therefore, consumption of the supplied power can be appropriately suppressed according to the power saving period.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated. Moreover, you may combine arbitrarily at least one part of embodiment described below.

<First Embodiment>
[Configuration and basic operation]
FIG. 1 is a diagram for explaining the outline of the power system according to the first embodiment of the present invention.

  With reference to FIG. 1, for example, an electric power company 1 that supplies power to a plurality of power demanding facilities 3 requests the aggregator 2 to save power when a tight supply and demand of power is expected. Specifically, the electric power company 1 transmits, to the aggregator 2 as a power saving request, power supply / demand tightness information indicating a period of tight supply / demand and the power consumption to be suppressed.

  The aggregator 2 is a business operator that supports energy saving in a plurality of power demanding facilities 3 such as a BEMS aggregator. When the aggregator 2 receives supply and demand tightness information from the electric power company 1, the aggregator 2 requests the power demand facility 3 to save power.

  Specifically, the aggregator 2 creates power saving request information indicating a power saving target and a power saving period in each power demand facility 3 based on the received supply and demand tightness information, and transmits it to each power demand facility 3 as a power saving request. .

  For example, the power saving period indicates a period in which power is to be saved in the power demand facility 3, and the power saving target indicates the amount of power to be saved in the power saving facility 3 in the power saving period. The power saving target may be different for each power demand facility 3.

  The power demand facility 3 is a facility that consumes power, such as a house, a building, or a factory. The consumer 39 in each power demand facility 3 receives a request for power saving from the aggregator 2 and determines whether to accept the request, that is, whether to participate in power saving. Specifically, for example, the consumer 39 confirms the content of the power saving request information, and participates in power saving when it is determined that the power saving target can be achieved in the power saving period.

  In the power demand facility 3 of the consumer 39 who has decided to participate in power saving, the consumption of power supplied from the electric utility 1 is suppressed during the power saving period.

  Here, in each power demand facility 3, for example, a power generation device which is a cogeneration apparatus is installed. The consumer 39 suppresses the consumption of the electric power supplied from the electric power company 1 by increasing the electric power generated by the electric power generation device during the power saving period.

  In each power demand facility 3 that has received a power saving request from the aggregator 2, if the consumption of power supplied from the electric power company 1 is suppressed, the power consumption reduced in each power demand facility 3, that is, negative wattage, is sent to the aggregator 2. Provided.

  The aggregator 2 collects the negative wattage in each power demand facility 3 and provides it to the electric utility 1.

  The electric utility 1 can avoid an increase in cost due to tight demand for electric power by receiving provision of negative wattage from the aggregator 2. Specifically, the electric power company 1 can avoid generating additional power supply costs, for example, by suppressing power consumption in each power demand facility 3.

  The electric power company 1 pays the aggregator 2 for negawatts based on the cost that can be avoided by providing the negawatts by the aggregator 2.

  The aggregator 2 distributes the negative wattage paid from the electric utility 1 to the consumers 39 who participated in power saving.

  Next, the negative wattage acquired by the electric utility 1 will be described.

  FIG. 2 is a diagram illustrating an example of a temporal change in power in the power system according to the first embodiment of the present invention. FIG. 3 is a diagram illustrating another example of the temporal change in power in the power system according to the first embodiment of the present invention.

  2 and 3 show the same period. In FIG. 2, the horizontal axis indicates time, and the vertical axis indicates power. The graph G11 shows the time change of the total generated power of each power demand facility 3 when the electric utility 1 does not request power saving, that is, the time change of the total value of the generated power in each power demand facility 3. The graph G1 shows the time change of the generated power of the electric power company 1 in this case.

  Referring to graph G11, the total generated power in each power demand facility 3 is zero until time t1, increases at time t1, and is at level P1 from time t1 to time t2. The total generated power increases again at time t2, and is at level P2 from time t2 to t4. The total generated power then decreases at time t4, reaches level P1 from time t4 to time t5, decreases again at time t5, and becomes zero after time t5.

  With reference to the graph G1, the electric power generation of the electric power company 1 is changing according to the electric power demand in each electric power demand facility 3, for example.

  In FIG. 3, the horizontal axis indicates time, and the vertical axis indicates power. The graph G22 shows the time change of the total generated power of each power demand facility 3 when the electric power company 1 makes a request for power saving. The graph G2 shows the time change of the generated power of the electric power company 1 in this case.

  Referring to graph G22, the period from time t3 to time t4 is a power saving period. The total generated power in each power demand facility 3 is increased during the power saving period as compared to the graph G11 shown in FIG.

  Specifically, the total generated power in each power demand facility 3 is zero until time t1, increases at time t1, and is at level P1 from time t1 to time t2. The total generated power increases again at time t2, and is at level P2 from time t2 to time t3. The total generated power then increases at time t3, which is the start time of the power saving period, and reaches level P3 from time t3 to time t4. Then, the total generated power decreases at time t4, which is the end time of the power saving period, becomes level P1 from time t4 to time t5, decreases again at time t5, and becomes zero after time t5.

  With reference to the graph G2, the electric power generated by the electric power company 1 changes according to the power demand in each power demand facility 3, for example.

  Here, since the total generated power of each power demand facility 3 increased during the power saving period, the power demand in each power demand facility 3 decreased. For this reason, the electric power company 1 reduced the generated electric power in the power saving period compared with the case shown in FIG.

  The decrease in the generated power by the electric power company 1 during the power saving period corresponds to the total generated power of each power demanding facility 3 increased during the power saving period. The negawatt acquired by the electric power company 1 is the total generated power of each power demanding facility 3 increased during the power saving period, that is, the decrease of the own generated power during the power saving period.

(Regarding the comparative example of the first embodiment of the present invention)
FIG. 4 is a diagram showing a configuration of a comparative example of the power system according to the first embodiment of the present invention.

  With reference to FIG. 4, the power system 201 includes an electric power provider server 10, a DR server 20, a controller 130, a power generation device 31, and an electrical facility 33.

  The electric power company server 10 is operated by the electric power company 1. The DR server 20 is operated by the aggregator 2. The controller 130, the power generation device 31, and the electrical equipment 33 are installed in the power demand facility 3, for example. A set of the controller 130, the power generation device 31, and the electric equipment 33 may be installed in each of the plurality of power demanding facilities 3.

  The electric utility server 10 and the DR server 20 are connected via a network. The DR server 20 and the controller 130 are connected via a network.

  The controller 130 and the power generation device 31 are connected to each other in the power demand facility 3 by wireless or wired communication. The controller 130 can control the operation of the power generation device 31. The power generation device 31 is a power generation device such as a fuel cell, for example.

  The electrical facility 33 is an electrical load such as a lighting device and an air conditioner. The electric facility 33 is usually supplied with electric power generated by the electric utility 1. On the other hand, when the power generation device 31 generates power, the electric power generated by the power generation device 31 is preferentially supplied to the electrical equipment 33.

  The electric power supplier server 10 transmits supply / demand tightness information to the DR server 20 when the tightness of power supply / demand is predicted.

  The DR server 20 receives the supply and demand tightness information from the electric power company server 10, creates power saving request information indicating a power saving target and a power saving period, and transmits it to the controller 130 in the power demand facility 3.

  When the controller 130 receives the power saving request information from the DR server 20, the controller 130 confirms the power saving target and the power saving period indicated by the received power saving request information. Then, the controller 130 transmits an activation power generation instruction to the power generation device 31 at an appropriate timing so that the power generation device 31 can start power generation in accordance with the start of the power saving period.

  The power generation device 31 normally stands by in a state where operations other than functions such as communication are stopped, that is, in a sleep state. The start power generation instruction is information for instructing the power generation device 31 in the sleep state to start, that is, return from the sleep state and start power generation.

  When the power generation device 31 receives the startup power generation instruction from the controller 30, it starts up and prepares for power generation. The power generation device 31 starts power generation when preparation for power generation is completed.

  Hereinafter, the operation from when the power generation device 31 receives the startup power generation instruction until it starts power generation is also referred to as a startup operation. Here, the description will be made assuming that one hour is required for the starting operation.

  For example, when the controller 130 receives, from the DR server 20, power saving request information indicating that the start time of the power saving period is 5 hours later, it takes 1 hour to start the power generation device 31. An activation power generation instruction is transmitted to the power generation device 31 one hour before the start time of the power saving period, that is, four hours after the current time.

  Thereby, since the controller 130 can make the electric power generation device 31 start electric power generation according to the start time of a power saving period, it suppresses consumption of the electric power supplied from the electric power company 1 according to the start time of a power saving period. be able to.

  However, if the remaining time until the start time of the power saving period is shorter than the time required for the startup operation of the power generation device 31, the controller 130 cannot cause the power generation device 31 to start power generation in accordance with the start time of the power saving period.

  In such a case, the power saving target may not be achieved in the power demand facility 3 because the timing for starting suppression of power consumption is delayed from the start time of the power saving period.

  Thus, the power system according to the first embodiment of the present invention solves such a problem by the following configuration and operation.

(About the first embodiment of the present invention)
FIG. 5 is a diagram showing a configuration of the power system according to the first embodiment of the present invention.

  Referring to FIG. 5, the power system 101 includes an electric power provider server 10, a DR server 20, a controller (charge control device) 30, a power generation device 31, a power storage device 32, and an electrical facility 33.

  Compared with the power system 201 shown in FIG. 4, the power system 101 includes a controller 30 instead of the controller 130, and further includes a power storage device 32. The electricity storage device 32 is installed in the power demand facility 3. The controller 30 and the power storage device 32 are communicatively connected by radio or wire.

  A set of the controller 30, the power generation device 31, and the electric equipment 33 may be installed in each of the plurality of power demanding facilities 3.

  When receiving the power saving request information from the DR server 20, the controller 30 confirms the power saving target and the power saving period indicated by the received power saving request information.

  For example, when the remaining time until the start time of the power saving period is shorter than the time required for the start operation of the power generation device 31, the controller 30 promptly transmits a start power generation instruction to the power generation device 31.

  The power generation device 31 receives the startup power generation instruction from the controller 30 and starts the startup operation. Specifically, when the power generation device 31 receives the startup power generation instruction, the power generation device 31 starts up and prepares for power generation.

  Next, the controller 30 performs control for causing the electricity storage device 32 to start discharging at a timing based on the start timing of the power saving period. Specifically, for example, the controller 30 performs control for causing the power storage device 32 to start discharging at the start time of the power saving period.

  Then, the controller 30 controls the power storage device 32 to stop discharging when the power generation device 31 completes the start-up operation and is generating power.

  With such a configuration, even if the time required for the start-up operation of the power generation device 31 is longer than the remaining time until the start timing of the power saving period, it is supplied from the electric utility 1 in accordance with the start timing of the power saving period. Power consumption can be suppressed.

  FIG. 6 is a diagram showing the configuration of the controller according to the first embodiment of the present invention.

  With reference to FIG. 6, the controller 30 includes an acquisition unit 41, a determination unit 42, a control unit 43, and a storage unit 44.

  The acquisition unit 41 acquires specification information from the power generation device 31 in advance and stores it in the storage unit 44. The specification information is information related to the specification of the power generation device 31 such as the time required for the start-up operation of the power generation device 31. Further, the acquisition unit 41 receives the power saving request information from the DR server 20 and outputs it to the determination unit 42.

  The determination unit 42 receives the power saving request information from the acquisition unit 41 and confirms the power saving period and the power saving target indicated by the power saving request information. And the judgment part 42 acquires specification information from the memory | storage part 44, compares the time required for starting operation of the electric power generation device 31 which specification information shows, and the remaining time until the start timing of a power saving period, and is a power saving period. It is determined whether or not the power generation device 31 can start power generation by the start timing.

  Specifically, for example, when the time required for the activation operation of the power generation device 31 is longer than the remaining time until the start timing of the power saving period, the determination unit 42 starts the power generation of the power generation device 31 by the start timing of the power saving period. Judge that it is not possible. The determination unit 42 notifies the control unit 43 of the determination result.

  The control unit 43 activates the power generation device 31 before the start timing of the power saving period. Specifically, for example, when the determination unit 42 determines that the power generation device 31 cannot start power generation by the start timing of the power saving period, the control unit 43 promptly moves to the power generation device 31 after the determination is made. Send start-up power generation instructions.

  On the other hand, when the determination unit 42 determines that the power generation device 31 can start power generation by the start timing of the power saving period, the control unit 43 generates the power generation device at a timing before the time required for the startup operation from the start timing of the power saving period. A startup power generation instruction is transmitted to 31.

  The power generation device 31 starts the start operation when receiving the start power generation instruction from the control unit 43.

  When the determination unit 42 determines that the power generation device 31 cannot start power generation by the start timing of the power saving period, the control unit 43 performs control to start discharging the power storage device 32 at a timing based on the start timing of the power saving period. .

  Specifically, when the determination unit 42 determines that the power generation device 31 cannot start power generation by the start timing of the power saving period, the control unit 43 starts discharging the power storage device 32 at the start timing of the power saving period, for example. Control.

  More specifically, the control unit 43 transmits a discharge start instruction to the power storage device 32 as control for starting discharge of the power storage device 32 at the start timing of the power saving period.

  When the storage device 32 receives a discharge start instruction from the control unit 43, the storage device 32 starts discharging, that is, power supply to the electrical equipment 33.

  When the control unit 43 confirms that the power generation device 31 has completed the startup operation and started power generation, the control unit 43 transmits a discharge stop instruction for stopping the discharge to the power storage device 32.

  The power storage device 32 stops discharging when receiving a discharge stop instruction from the control unit 43.

  Further, the control unit 43 performs control for charging the power storage device 32 before the power saving period, based on the remaining power storage amount of the power storage device 32.

  For example, when the determination unit 42 receives the power saving request information from the acquisition unit 41 and determines that the power generation device 31 cannot start power generation by the start timing of the power saving period, is the remaining power storage amount of the power storage device 32 sufficient? Judge whether or not.

  Specifically, for example, when the determination unit 42 determines that the power generation device 31 cannot start power generation by the start timing of the power saving period, the power generation device 32 starts from the start timing of the power saving period as described above. Discharge is performed during a period until 31 starts power generation.

  The determination unit 42 confirms whether or not the electricity storage device 32 has a remaining amount of electricity that can be continuously discharged during the period, and confirms that the electricity storage device 32 has the remaining electricity storage amount. If it is possible, it is determined that the remaining amount of electricity stored in the electricity storage device 32 is sufficient. The determination unit 42 notifies the control unit 43 of the determination result.

  When the determination unit 42 determines that the remaining amount of power stored in the power storage device 32 is not sufficient, the control unit 43 performs control to charge the power storage device 32 until the start timing of the power saving period.

  Specifically, when it is determined that the remaining amount of electricity stored in the electricity storage device 32 is not sufficient, the control unit 43 transmits to the electricity storage device 32 a charge start instruction for causing the electricity storage device 32 to start charging.

  When the power storage device 32 receives a charge start instruction from the control unit 43 in the controller 30, for example, the power storage device 32 starts charging using power supplied from the electric power company 1 to the power demanding facility 3.

  The control unit 43 transmits to the power storage device 32 a charge stop instruction for causing the power storage device 32 to stop charging before the start timing of the power saving period.

  The power storage device 32 stops charging when receiving a charge stop instruction from the control unit 43 in the controller 30.

  For example, the determination unit 42 receives power saving request information from the acquisition unit 41 and determines whether or not the power generation device 31 can start power generation by the end timing of the power saving period.

  Specifically, when the time required for the activation operation of the power generation device 31 is shorter than the remaining time until the end timing of the power saving period, the determination unit 42 can start the power generation device 31 by the end timing of the power saving period. to decide. The determination unit 42 notifies the control unit 43 of the determination result.

  The control unit 43 does not start the power generation device 31 when the determination unit 42 determines that the power generation device 31 cannot start power generation by the end timing of the power saving period.

  Specifically, the control unit 43 does not transmit an activation power generation instruction to the power generation device 31 when the determination unit 42 determines that the power generation device 31 cannot start power generation by the end timing of the power saving period.

  Even in this case, the control unit 43 causes the power storage device 32 to start discharging, for example, by transmitting a discharge start instruction to the power storage device 32 at the start timing of the power saving period.

[Operation]
Next, an operation when the power system 101 according to the first embodiment of the present invention executes a negative watt generation process will be described.

  Each device in the power system 101 includes a computer, and an arithmetic processing unit such as a CPU in the computer reads and executes a program including a part or all of each step of the following sequence from a memory (not shown). Each of the programs of the plurality of apparatuses can be installed from the outside. The programs of the plurality of apparatuses are distributed while being stored in a recording medium.

  FIG. 7 is a diagram showing an example of a sequence in the power system according to the first embodiment of the present invention.

  With reference to FIG. 7, first, in the power demand facility 3, the controller 30 confirms in advance the time required for the start-up operation of the power generation device 31. Specifically, the controller 30 transmits a specification request for requesting specification information to the power generation device 31 (step S11).

  Next, the power generation device 31 receives a specification request from the controller 30, and transmits specification information indicating its own specification to the controller 30 (step S12). The controller 30 receives the specification information from the power generation device 31 and recognizes the time required for the startup operation of the power generation device 31.

  Next, when it is predicted that power supply and demand will be tight, the power company server 10 operated by the power company 1 transmits supply and demand tightness information to the DR server 20 operated by the aggregator 2 (step S13).

  Next, the DR server 20 receives the tight supply and demand information from the electric power company server 10, creates power saving request information indicating a power saving target and a power saving period, and transmits it to the controller 30 in the power demand facility 3 (step S14). .

  Next, for example, when receiving the power saving request information from the DR server 20, the controller 30 determines the timing at which the power generation device 31 can generate power (step S15). Specifically, the controller 30 compares the time required for the start-up operation of the power generation device 31 with the remaining time until the start of the power saving period, and the power generation device 31 can start power generation by the start timing of the power saving period. Determine whether or not.

  Further, the controller 30 determines whether or not the power generation device 31 can start power generation by the end timing of the power saving period.

  Here, the controller 30 determines that the power generation device 31 cannot start power generation by the start timing of the power saving period, but can start power generation by the end timing of the power saving period.

  The controller 30 transmits an activation power generation instruction to the power generation device 31 based on the determination result (step S16).

  On the other hand, if the controller 30 determines that power generation cannot be started by the end timing of the power saving period, the controller 30 does not transmit an activation power generation instruction to the power generation device 31 (step S15).

  Next, the power generation device 31 receives a startup power generation instruction from the controller 30, and starts a startup operation (step S17). Specifically, the power generation device 31 prepares for power generation after receiving the startup power generation instruction and starting up.

  Next, the controller 30 transmits a remaining amount report request for requesting a report of the remaining power amount to the power storage device 32 (step S18).

  Next, the power storage device 32 receives the remaining amount report request from the controller 30, and transmits the remaining amount information indicating its own remaining power amount to the controller 30 (step S19).

  Next, the controller 30 determines whether or not the remaining amount of electricity stored in the electricity storage device 32 is sufficient (step S20).

  Here, the controller 30 determines that the remaining amount of electricity stored in the electricity storage device 32 is not sufficient, and transmits a charge start instruction for causing the electricity storage device 32 to start charging (step S21).

  Next, the power storage device 32 receives a charge start instruction from the controller 30, starts charging (step S22), and transmits charge start information indicating that charging has started to the controller 30 (step S23). Here, the power used by the power storage device 32 for charging itself is, for example, the power supplied from the electric power company 1 to the power demand facility 3.

  Next, the controller 30 transmits to the power storage device 32 a charge stop instruction for causing the power storage device 32 to stop charging before the start timing of the power saving period (step S24).

  Next, the power storage device 32 receives a charge stop instruction from the controller 30, stops the charge (step S25), and transmits charge stop information indicating that the charge is stopped to the controller 30 (step S26).

  Next, the controller 30 transmits to the power storage device 32 a discharge start instruction for causing the power storage device 32 to start discharging at a timing based on the start timing of the power saving period. Specifically, the controller 30 transmits, to the power storage device 32, a discharge start instruction for causing the power storage device 32 to start discharging at the start timing of the power saving period (step S27).

  Next, the power storage device 32 receives a discharge start instruction from the controller 30 and starts discharging (step S28). Specifically, the power storage device 32 supplies the electric power stored therein to the electrical facility 33. And the electrical storage device 32 transmits the discharge start information which shows having started discharge to the controller 30 (step S29).

  Next, the controller 30 transmits a status report request for requesting a report of the current operation status to the power generation device 31 (step S30).

  Next, the power generation device 31 receives a status report request from the controller 30 and transmits status information indicating its own operating status to the controller 30. Here, the power generation device 31 transmits state information indicating that the activation operation is being performed to the controller 30 (step S31).

  Next, the controller 30 receives state information indicating that the activation operation is being performed from the power generation device 31, and recognizes that the power generation device 31 has not yet generated power.

  The controller 30 repeatedly transmits the status report request to the power generation device 31 periodically or irregularly. Each time the power generation device 31 receives a status report request from the controller 30, the power generation device 31 transmits status information indicating its own operation status at the time of reception to the controller 30.

  Next, the power generation device 31 completes the start-up operation, starts power generation (step S32), and supplies the generated power to the electrical equipment 33. When the power generation device 31 receives a status report request from the controller 30 after starting power generation (step S33), the power generation device 31 transmits status information indicating that power generation is being performed to the controller 30 (step S34).

  Next, the controller 30 receives state information indicating that power generation is being performed from the power generation device 31, and transmits a discharge stop instruction for causing the power storage device 32 to stop discharging to the power storage device 32 (step S36).

  The power storage device 32 receives the discharge stop instruction from the controller 30, stops the discharge, and transmits the discharge stop information indicating that the discharge is stopped to the controller 30 (step S37).

  In the power system 101 according to the first embodiment of the present invention, the controller 30 is configured to acquire the specification information from the power generation device 31, but is not limited to such a configuration. The configuration may be such that information is acquired from another device via a network. For example, the controller 30 transmits information indicating the model number of the power generation device 31 to the other device. The other apparatus receives information indicating the model number of the power generation device 31 from the controller 30 and transmits the specification information of the power generation device 31 to the controller 30.

  In the power system 101 according to the first embodiment of the present invention, the power saving request information transmitted from the DR server 20 is configured to indicate a power saving period and a power saving target. However, the present invention is not limited to this. For example, the power saving request information may indicate a power saving target and may not indicate a power saving period. In this case, for example, the controller 30 sets a time after a predetermined time from the time when the power saving request information is received as the start time of the power saving period.

  Further, in the power system 101 according to the first embodiment of the present invention, the power saving request information transmitted by the DR server 20 is configured to indicate the amount of power to be saved in the power demand facility 3 as a power saving target. However, the present invention is not limited to this, and the power consumption target value in the power demand facility 3 may be indicated as a power saving target.

  Moreover, in the electric power system 101 which concerns on the 1st Embodiment of this invention, the controller 30 controls the power generation device 31 and the electrical storage device 32, and the structure which suppresses consumption of the electric power supplied from the electric power provider 1 However, for example, when it is determined that the power saving target cannot be achieved even with the power generation device 31 and the power storage device 32, the electric facility 33 is further controlled to reduce the power consumption of the electric facility 33. It may be.

  Moreover, in the electric power system 101 which concerns on the 1st Embodiment of this invention, although the controller 30 was set as the structure installed in the electric power demand facility 3, it is not limited to this, It installs in another facility It may be configured.

  Moreover, in the electric power system 101 which concerns on the 1st Embodiment of this invention, when the determination part 42 judges that the control part 43 in the controller 30 cannot start the electric power generation device 31 by the start timing of a power saving period, Although it is configured to perform control to start discharging of the electricity storage device 32 at the start timing of the power saving period, the present invention is not limited to this. When the determination unit 42 determines that the power generation device 31 cannot start power generation by the start timing of the power saving period, the control unit 43 performs control to start discharging the power storage device 32 at a timing based on the start timing of the power saving period. Any configuration may be used.

  Specifically, for example, the control unit 43 may be configured to perform control to start discharging the power storage device 32 before a predetermined time before the start timing of the power saving period, or after a predetermined time after the start timing of the power saving period. The structure which performs control which starts discharge of the electrical storage device 32 may be sufficient.

  By the way, the power generation device may not be able to generate a necessary amount of power during a period of power generation. And in such a case, the consumer is willing to suppress the consumption of the electric power supplied from the electric power system etc. to his / her own electric power demand facility, for the reason that the amount of the suppressed electric power is small, etc. , You may not be able to receive power savings from an electric utility.

  On the other hand, in the controller (charge control device) according to the first embodiment of the present invention, the determination unit 42 determines whether or not the power generation device 31 can start power generation by the start timing of the power saving period. . When the determination unit 42 determines that the power generation device 31 cannot start power generation by the start timing of the power saving period, the control unit 43 performs control to start discharging the power storage device 32 at the start timing of the power saving period.

  In the power system according to the first embodiment of the present invention, the controller 30 determines whether or not the power generation device 31 can start power generation by the start timing of the power saving period. When the controller 30 determines that the power generation device 31 cannot start power generation by the start timing of the power saving period, the controller 30 transmits to the power storage device 32 a discharge start instruction for causing the power storage device 32 to start discharging at the start timing of the power saving period. . The power storage device 32 receives a discharge start instruction from the controller 30 and starts discharging.

  With such a configuration, for example, by starting the use of the power stored in the power storage device 32 at the start timing of the power saving period when the power generation start of the power generation device 31 is not in time by the start timing of the power saving period, Consumption of power supplied from the power system or the like can be suppressed from the start timing of the power saving period.

Therefore, in the controller and power system according to the first embodiment of the present invention, it is possible to appropriately suppress the consumption of the supplied power in accordance with the power saving period.

  In the controller according to the first embodiment of the present invention, the control unit 43 activates the power generation device 31 before the start timing of the power saving period, and when the power generation device 31 starts power generation, Stop discharging.

  With such a configuration, while the power generation device 31 is activated in advance with respect to the power saving period, after the power generation device 31 starts power generation in the power saving period, the use of the electric power stored in the power storage device 32 is stopped, The electric power generated by the power generation device 31 can be used. As a result, the power generated by the power generation device 31 can be used effectively, and the power stored in the power storage device 32 can be used efficiently.

  In the controller according to the first embodiment of the present invention, the control unit 43 performs control for charging the power storage device 32 before the power saving period, based on the remaining power storage amount of the power storage device 32.

  With such a configuration, for example, when the amount of power already stored in the power storage device 32 is smaller than the amount of discharge power required for the power storage device 32 in the power saving period, until the power saving period starts, The power storage device 32 can be charged.

  In the controller according to the first embodiment of the present invention, the determination unit 42 determines whether or not the power generation device 31 can start power generation by the end timing of the power saving period. When the determination unit 42 determines that the power generation device 31 cannot start power generation by the end timing, the control unit 43 does not start the power generation device 31.

  As described above, unnecessary start of the power generation device 31 can be avoided by the configuration in which the power generation device 31 is not started when the power generation start by the power generation device 31 is not in time for the end timing of the power saving period.

  Next, another embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

<Second Embodiment>
The present embodiment relates to a power system in which the type of power generation device is different from that of the power system according to the first embodiment. The contents other than those described below are the same as those of the power system according to the first embodiment.

[Explanation of issue]
For example, when the power generation device installed in the power demand facility 3 is a solar power generation device, the amount of power generated by the power generation device changes according to the intensity of sunlight. For this reason, for example, when the weather is bad, the power generation device may not be able to generate a necessary amount of power during the power saving period.

  In such a case, the power demand facility 3 cannot effectively suppress the consumption of the power supplied from the electric utility 1 during the power saving period.

  Therefore, in the power system according to the second embodiment of the present invention, such a problem is solved by the following configuration and operation.

[Configuration and basic operation]
FIG. 8 is a diagram showing a configuration of a power generation system according to the second embodiment of the present invention.

  Referring to FIG. 8, the power system 102 includes an electric power provider server 10, a DR server 20, a controller (charge control device) 30, a power generation device 31, a power storage device 32, an electrical facility 33, and a terminal device 34.

  The power generation device 31 is a power generation device that generates power using natural energy, such as a solar power generation device or a wind power generation device. The power generation device 31 may be a hydroelectric power generation device or a tidal power generation device.

  The terminal device 34 is a terminal device such as a personal computer, a smartphone, or a tablet, for example, and is connected to the controller 30 by wireless or wired communication.

  The controller 30 stores, for example, the location information of the power demanding facility 3 transmitted by the user 39 who is a user using the terminal device 34. The location information is information indicating the location of the power demand facility 3, and indicates, for example, the coordinates of the power demand facility 3 or the zip code of the power demand facility 3.

  Further, the controller 30 stores the specification information of the power generation device 31 transmitted by the customer 39 using the terminal device 34. The specification information is information related to the specifications of the power generation device 31, such as the relationship between the intensity of sunlight and the generated power, or the relationship between wind power and the generated power.

  When the controller 30 receives the power saving request information from the DR server 20, the controller 30 predicts the generated power of the power generation device 31 during the power saving period.

  Specifically, when the controller 30 receives the power saving request information from the DR server 20, the controller 30 acquires the weather forecast information of the area where the power demand facility 3 is located from another device via the network using the location information. The weather forecast information is information that can determine, for example, the intensity of sunlight or wind power. The other device is, for example, a server operated by a company that provides a service related to weather forecast.

  The controller 30 predicts the power that can be generated by the power generation device 31 during the power saving period based on the contents of the specification information and the weather forecast information.

  For example, when the controller 30 determines that the power generation device 31 cannot generate the amount of power necessary to achieve the power saving target during the power saving period, the controller 30 generates the power generated by the power generation device 31 until the start of the power saving period. Control to charge the power storage device 32 is performed. In this case, the controller 30 may perform control to charge the power storage device 32 with the power supplied from the electric utility 1 to the power demand facility 3.

  In this case, the controller 30 performs control to limit the discharge of the power storage device 32. Specifically, the controller 30 performs control to limit the discharge of the power storage device 32 so that the power stored in the power storage device 32 is not consumed in the power demand facility 3 or provided to other facilities.

  Then, the controller 30 is supplied from the electric utility 1 by performing control to discharge the power storage device 32 during the power saving period, that is, by supplying the electric power stored in the power storage device 32 to the electric equipment 33. Reduce power consumption.

  FIG. 9 is a diagram illustrating a configuration of a controller according to the second embodiment of the present invention.

  Referring to FIG. 9, the controller 30 includes an acquisition unit 41, a determination unit 42, a control unit 43, a storage unit 44, and a prediction unit 45.

  The acquisition unit 41 receives the location information of the power demand facility 3 transmitted from the terminal device 34 and stores it in the storage unit 44. In addition, the acquisition unit 41 receives the specification information transmitted from the terminal device 34 and stores it in the storage unit 44.

  Further, the acquisition unit 41 receives the power saving request information transmitted from the DR server 20 and outputs it to the control unit 43 and the prediction unit 45.

  Moreover, when the acquisition unit 41 receives the power saving request information, the acquisition unit 41 acquires location information from the storage unit 44, and uses the acquired location information to network the weather forecast information in a region where the power demand facility 3 is located from another device. Get via. The acquisition unit 41 outputs the acquired weather forecast information to the prediction unit 45.

  The prediction unit 45 performs prediction regarding the power generation amount of the power generation device 31 in the power saving period. Specifically, for example, when receiving the power saving request information and the weather forecast information from the acquisition unit 41, the prediction unit 45 acquires the specification information from the storage unit 44. The prediction unit 45 predicts the power generation amount of the power generation device 31 in the power saving period indicated by the power saving request information based on the weather forecast information and the specification information. The prediction unit 45 notifies the determination unit 42 of the prediction result.

  Here, the prediction result of the power generation amount by the prediction unit 45 may represent the predicted power generation amount by a numerical value, or may represent the predicted power generation amount by a level such as large, medium, or small.

  The prediction unit 45 may be configured to perform prediction regarding the power generation amount of the power generation device 31 in the entire power saving period, or may be configured to perform prediction regarding the power generation amount of the power generation device 31 in a part of the power saving period. Also good.

  Based on the prediction result by the prediction unit 45, the determination unit 42 determines, for example, whether or not the power generation device 31 can generate an amount of power necessary to achieve the power saving target in the power saving period, and controls the determination result. Notify the unit 43.

  Further, the determination unit 42 determines whether or not the power saving target can be achieved when the electric power stored in the power storage device 32 is discharged during the power saving period, and notifies the control unit 43 of the determination result.

  For example, the control unit 43 performs control for charging the power storage device 32 before the power saving period based on the remaining power storage amount of the power storage device 32. Specifically, in the control unit 43, the determination unit 42 determines that the power generation device 31 cannot generate the amount of power necessary to achieve the power saving target during the power saving period, and is stored in the power storage device 32. If it is determined that the power saving target cannot be achieved even if the power is discharged in the power saving period, the power storage device 32 is charged with the power generated by the power generation device 31 before the power saving period.

  In this case, the control unit 43 may perform control for charging the power storage device 32 with the power supplied from the electric power company 1 to the power demand facility 3.

  The control unit 43 performs control to limit the discharge of the power storage device 32 before the power saving period based on the prediction content by the prediction unit 45. Specifically, for example, as described above, the control unit 43 determines that the power generation device 31 cannot generate the amount of power necessary to achieve the power saving target during the power saving period, and is stored in the power storage device 32. When it is determined that the power saving target cannot be achieved even if the power being discharged is discharged during the power saving period, the power stored in the power storage device 32 is not consumed in the power demand facility 3 or provided to other facilities. Then, control for limiting the discharge of the electricity storage device 32 is performed.

[Operation]
Next, an operation when the power system 102 according to the second embodiment of the present invention executes a negative watt generation process will be described.

  Each device in the power system 102 includes a computer, and an arithmetic processing unit such as a CPU in the computer reads and executes a program including a part or all of each step of the following sequence from a memory (not shown). Each of the programs of the plurality of apparatuses can be installed from the outside. The programs of the plurality of apparatuses are distributed while being stored in a recording medium.

  FIG. 10 is a diagram showing an example of a sequence in the power system according to the second embodiment of the present invention.

  With reference to FIG. 10, first, in the power demand facility 3, the controller 30 acquires in advance the location information of the power demand facility 3 and the specification information of the power generation device 31 from the terminal device 34 (step S111), and stores its own storage unit. 44.

  Next, the electric power company server 10 operated by the electric power company 1 transmits supply / demand tightness information to the DR server 20 operated by the aggregator 2 when the power supply / demand tightness is expected (step S112).

  Next, the DR server 20 receives the tight supply and demand information from the electric power company server 10, creates power saving request information indicating a power saving target and a power saving period, and transmits it to the controller 30 in the power demand facility 3 (step S113). .

  Next, for example, when the controller 30 receives the power saving request information from the DR server 20, the controller 30 uses the location information stored in the storage unit 44 to send the weather forecast information of the area where the power demand facility 3 is located from another device to the network. Obtained via (step S114).

  Next, the controller 30 predicts the power generation amount of the power generation device 31 during the power saving period indicated by the power saving request information based on the acquired weather forecast information and the specification information stored in the storage unit 44 (step S115).

  Next, the controller 30 transmits a remaining amount report request for requesting a report of the remaining power amount to the power storage device 32 (step S116).

  Next, the power storage device 32 receives the remaining amount report request from the controller 30, and transmits the remaining amount information indicating its own remaining power amount to the controller 30 (step S117).

  Next, the controller 30 determines whether or not to charge the power storage device 32 during the power saving period. For example, the controller 30 determines that the power generation device 31 cannot generate the amount of power necessary to achieve the power saving target in the power saving period based on the prediction result of the power generation amount, and the remaining amount information If it is determined that the power saving target cannot be achieved even if the electric power stored in the power storage device 32 is discharged during the power saving period, it is determined that the power storage device 32 is charged during the power saving period.

  Here, the controller 30 determines to charge the power storage device 32 and transmits a charge start instruction for causing the power storage device 32 to start charging to the power storage device 32 (step S119).

  Next, the power storage device 32 receives a charging start instruction from the controller 30, starts charging itself with the power generated by the power generation device 31 (step S120), and charging start information indicating that charging has started. Is transmitted to the controller 30 (step S121).

  Next, the controller 30 transmits to the power storage device 32 a charge stop instruction for causing the power storage device 32 to stop charging before the start timing of the power saving period (step S122).

  Next, the power storage device 32 receives a charge stop instruction from the controller 30, stops the charge (step S123), and transmits charge stop information indicating that the charge is stopped to the controller 30 (step S124).

  Next, the controller 30 transmits to the power storage device 32 a discharge start instruction for causing the power storage device 32 to start discharging at a timing based on the start timing of the power saving period. Specifically, the controller 30 transmits, to the power storage device 32, a discharge start instruction for causing the power storage device 32 to start discharging at the start timing of the power saving period (step S125).

  Next, the power storage device 32 receives a discharge start instruction from the controller 30 and starts discharging (step S126). Specifically, the power storage device 32 supplies the electric power stored therein to the electrical facility 33. And the electrical storage device 32 transmits the discharge start information which shows having started discharge to the controller 30 (step S127).

  As described above, in the controller (charge control device) according to the second embodiment of the present invention, the prediction unit 45 performs prediction regarding the power generation amount of the power generation device 31 in part or all of the power saving period. The control unit 43 performs control to limit the discharge of the power storage device 32 before the power saving period, based on the prediction content by the prediction unit 45. The power generation device 31 generates power using natural energy.

  Further, in the power system according to the second embodiment of the present invention, the controller 30 can control the power storage device 32. The controller 30 performs prediction regarding the power generation amount of the power generation device 31 in part or all of the power saving period, and restricts the discharge of the power storage device 32 before the power saving period based on the predicted content.

  With such a configuration, for example, when it is predicted that the power generation device 31 cannot generate the required amount of power during the power saving period based on information such as weather forecasts, the power stored in the power storage device 32 is saved. It can prevent that the electric power stored in the electrical storage device 32 is consumed until a power saving period begins so that it can be used in a period.

  Therefore, in the controller and the power system according to the second embodiment of the present invention, it is possible to appropriately suppress the consumption of the supplied power in accordance with the power saving period.

  Since other configurations and operations are the same as those of the power system according to the first embodiment, detailed description thereof will not be repeated here.

  Next, another embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

<Third Embodiment>
The present embodiment relates to an electric power system that uses an electric storage device included in a vehicle, as compared with the electric power system according to the first embodiment. The contents other than those described below are the same as those of the power system according to the first embodiment.

  FIG. 11 is a diagram showing a configuration of a power system according to the third embodiment of the present invention.

  Referring to FIG. 11, the power system 103 includes an electric utility server 10, a DR server 20, a controller (charge control device) 30, a power generation device 31, a power storage device 32, an electrical facility 33, and a terminal device. 34 and an electric vehicle 38.

  The terminal device 34 is a terminal device such as a personal computer, a smartphone, or a tablet, for example, and is connected to the controller 30 by wireless or wired communication.

  The power storage device 32 is mounted on the electric vehicle 38. Specifically, the electricity storage device 32 is used as a battery for driving the electric vehicle 38. In addition, when the electric vehicle 38 is parked in the power demand facility 3 and connected to a power supply source in the power demand facility 3, the power storage device 32 stores power in the power system 101 according to the first embodiment of the present invention. Used in the same way as the device 32.

  When there is a plan to use the electric vehicle 38, the consumer 39 who is a user transmits vehicle use schedule information to the controller 30 using the terminal device 34. The vehicle use schedule information indicates, for example, a scheduled use period that is a period in which the electric vehicle 38 is scheduled to be used and a planned travel distance that is a travel distance planned for the electric vehicle 38.

  The controller 30 stores, for example, vehicle use schedule information received from the terminal device 34. When the controller 30 receives the power saving request information from the DR server 20, the controller 30 compares the power saving period indicated by the power saving request information with the scheduled usage period indicated by the vehicle use schedule information. For example, a part or all of the power saving period is an electric vehicle. It is determined whether it is included in 38 scheduled use periods.

  For example, when the controller 30 determines that part or all of the power saving period is included in the scheduled use period of the electric vehicle 38, the controller 30 transmits information for recommending the change of the scheduled use period of the electric vehicle 38 to the terminal device 34. To do.

  For example, the controller 30 performs control for charging the power storage device 32 based on the vehicle use schedule information. Specifically, for example, when the controller 30 performs control for discharging the power storage device 32 during the power saving period when the scheduled use period is set after the power saving period, the electric vehicle 38 is used thereafter. If it is determined that the remaining amount of electricity stored in the electricity storage device 32 may be insufficient in the meantime, control is performed to charge the electricity storage device 32 until the start of the power saving period.

  In addition, the controller 30 may perform control to limit the discharge of the power storage device 32 based on the planned travel distance indicated by the vehicle use schedule information. Specifically, when the controller 30 performs control to discharge the power storage device 32 during the power saving period, the controller 30 determines that there may be a shortage of the remaining power storage of the power storage device 32 while the electric vehicle 38 is being used. In this case, control is performed to limit the amount of discharge of the electricity storage device 32 during the power saving period.

  FIG. 12 is a diagram showing a configuration of a controller according to the third embodiment of the present invention.

  Referring to FIG. 12, the controller 30 includes an acquisition unit 41, a determination unit 42, a control unit 43, a storage unit 44, and a usage information output unit 47.

  The acquisition unit 41 receives the vehicle use schedule information transmitted from the terminal device 34 and stores it in the storage unit 44. Further, the acquisition unit 41 receives the power saving request information from the DR server 20 and outputs it to the determination unit 42.

  When the determination unit 42 receives the power saving request information from the acquisition unit 41, the determination unit 42 acquires the vehicle use schedule information from the storage unit 44. Then, the determination unit 42 compares the power saving period indicated by the power saving request information with the scheduled usage period indicated by the vehicle usage schedule information, and whether or not a part or all of the power saving period is included in the scheduled usage period of the electric vehicle 38. Judging.

  If the determination unit 42 determines that a part or all of the power saving period is included in the planned use period of the electric vehicle 38, the determination unit 42 sets a recommended planned use period, and the set recommended planned use period is used as the usage information output unit 47. Notify The recommended scheduled use period is, for example, a period that does not include part or all of the power saving period.

  The usage information output unit 47 outputs, for example, information related to the use of the electric vehicle 38 during the power saving period based on the use schedule of the electric vehicle 38. Specifically, for example, the usage information output unit 47 creates recommended time information indicating the recommended planned usage period notified from the determination unit 42 as information for recommending the change of the planned usage period, and the terminal device 34.

  Note that the usage information output unit 47 may include in the recommended time information a message that the electricity charge at the power demand facility 3 will be reduced if the use schedule of the electric vehicle 38 is changed.

  The control part 43 performs control which charges the electrical storage device 32 based on the plan travel distance which vehicle use plan information shows, for example.

  Specifically, for example, when the scheduled use period is set after the power saving period, the determination unit 42 performs control for discharging the power storage device 32 in the power saving period, and then the electric vehicle 38 It is determined whether or not the remaining amount of electricity stored in the electricity storage device 32 is insufficient during use. The determination unit 42 notifies the control unit 43 of the determination result.

  For example, when the determination unit 42 determines that the remaining amount of power stored in the power storage device 32 is insufficient when the electric vehicle 38 is used, the control unit 43 performs control to charge the power storage device 32 until the start of the power saving period.

  In addition, the control unit 43 may perform control to limit the discharge of the power storage device 32 based on the planned travel distance indicated by the vehicle use schedule information.

  Specifically, when the scheduled use period is set after the power saving period, the determination unit 42 performs the control for discharging the power storage device 32 in the power saving period, and then when the electric vehicle 38 is used. It is determined whether or not the remaining amount of electricity stored in the electricity storage device 32 is insufficient. The determination unit 42 notifies the control unit 43 of the determination result.

  In addition, when the determination unit 42 determines that the remaining amount of power stored in the power storage device 32 is insufficient when the electric vehicle 38 is used, the discharge of the power storage device 32 that is permitted in the power saving period in order to prevent the power storage device 32 from remaining short of power The amount is notified to the control unit 43.

  For example, when the determination unit 42 determines that the remaining amount of power stored in the power storage device 32 is insufficient when the electric vehicle 38 is used, the control unit 43 performs control to limit the discharge amount of the power storage device 32. For example, the control unit 43 prevents the power storage device 32 from discharging an amount of power exceeding the allowable discharge amount of the power storage device 32 notified from the determination unit 42 during the power saving period.

  FIG. 13 is a diagram showing a configuration of a terminal apparatus according to the third embodiment of the present invention.

  With reference to FIG. 13, the terminal device 34 includes an operation unit 51, a reception unit 52, a processing unit 53, and a transmission unit 54.

  The operation unit 51 receives the operation of the customer 39 and notifies the processing unit 53 of the content of the operation. Specifically, for example, the operation unit 51 receives an operation performed by the consumer 39 to transmit vehicle use schedule information to the controller 30.

  The processing unit 53 creates vehicle use schedule information that is information related to the use schedule of the electric vehicle 38 based on the operation details of the customer 39 notified from the operation unit 51, and outputs the vehicle use schedule information to the transmission unit 54. The transmission unit 54 transmits the vehicle use schedule information received from the processing unit 53 to the controller 30.

  In addition, the receiving unit 52 receives, from the controller 30, information related to the use of the electric vehicle 38 during the power saving period created based on the use schedule of the electric vehicle 38. Specifically, the receiving unit 52 receives recommended time information transmitted from the controller 30, for example. The receiving unit 52 outputs the recommended time information received from the controller 30 to the processing unit 53.

  The processing unit 53 displays the content of the recommended time information received from the transmission unit 54 on the display unit 55 that is a display, for example.

  For example, when the consumer 39 confirms the display content of the display unit 55 and changes the period during which the electric vehicle 38 is used to the period indicated by the recommended time information, as in the first embodiment of the present invention, power saving is achieved. In accordance with the start timing of the period, the supply of electric power from the power storage device 32 to the electrical facility 33 can be started.

  That is, when the consumer 39 changes the time for using the electric vehicle 38 to the time indicated by the recommended time information, for example, the time required for the start-up operation of the power generation device 31 from the remaining time until the start timing of the power saving period. Even when the power consumption is long, the suppression of power consumption in the power demand facility 3 can be started in accordance with the start timing of the power saving period.

  In the third embodiment of the present invention, for example, when the electric vehicle 38 is parked in the power demand facility 3 and connected to the power supply source in the power demand facility 3, The configuration is used in the same manner as the power storage device 32 of the power system 101 according to the first embodiment, but is not limited thereto, and the power system 102 according to the second embodiment of the present invention. The structure used similarly to the electricity storage device 32 in FIG.

  Specifically, for example, the controller 30 performs prediction related to the power generation amount of the power generation device 31 in the power saving period, and performs control to limit the discharge of the power storage device 32 before the power saving period based on the prediction content.

  As described above, in the controller (charge control device) according to the third embodiment of the present invention, the usage information output unit 47 relates to the use of the electric vehicle 38 during the power saving period based on the use schedule of the electric vehicle 38. The recommended time information that is information is output. The power storage device 32 is mounted on the electric vehicle 38.

  With such a configuration, for example, when a part or all of the power saving period is included in the period in which the consumer 39 intends to use the electric vehicle 38, the period in which the electric vehicle 38 is used is changed to a period that does not overlap with the power saving period. A message for recommending to do so can be presented to the consumer 39. For example, when the consumer 39 accepts the content of the message and changes the usage period of the electric vehicle 38, the electric vehicle 38 is mounted on the electric vehicle 38 for the purpose of suppressing the consumption of electric power supplied from the power system or the like during the power saving period. The electric power of the stored electricity storage device 32 can be used.

  In the controller according to the third embodiment of the present invention, the control unit 43 performs at least one of charging and discharging limitation of the power storage device 32 based on the planned travel distance of the electric vehicle 38.

  With such a configuration, for example, when the period in which the consumer 39 is scheduled to use the electric vehicle 38 is set after the power saving period, the power stored in the power storage device 32 is used in the power saving period. When the electric vehicle 38 is used, if there is a possibility that the remaining amount of electricity stored in the electricity storage device 32 is insufficient, the amount of electric power that is charged before the start of the electricity saving period or that the electricity storage device 32 is discharged during the electricity saving period. Can be limited.

  In the terminal device according to the third embodiment of the present invention, the transmission unit 54 transmits vehicle use schedule information regarding the use schedule of the electric vehicle 38 to the controller 30. The receiving unit 52 receives from the controller 30 recommended time information, which is information related to the use of the electric vehicle 38 during the power saving period, created based on the use schedule of the electric vehicle 38.

  The controller 30 determines whether or not the power generation device 31 can start power generation by the start timing of the power saving period. When the controller 30 determines that the power generation device 31 cannot start power generation by the start timing of the power saving period, the controller 30 starts the power saving period. Control to start discharging of the electricity storage device 32 at timing is performed.

  With such a configuration, for example, when the power generation start of the power generation device 31 is not in time by the start timing of the power saving period, the use of the power stored in the power storage device 32 is started at the start timing of the power saving period. The consumption of power supplied from the power system or the like can be suppressed from the start timing of the power saving period. In addition, for example, when a part or all of the power saving period is included in the period in which the customer 39 intends to use the electric vehicle 38, it is recommended to change the period in which the electric vehicle 38 is used to a period that does not overlap with the power saving period. A message to do so can be presented to the consumer 39. For example, when the consumer 39 accepts the content of the message and changes the usage period of the electric vehicle 38, the electric vehicle 38 is mounted on the electric vehicle 38 for the purpose of suppressing the consumption of electric power supplied from the power system or the like during the power saving period. The electric power of the stored electricity storage device 32 can be used.

  Therefore, in the terminal device according to the third embodiment of the present invention, the consumption of the supplied power can be appropriately suppressed according to the power saving period.

  Since other configurations and operations are the same as those of the power system according to the first embodiment, detailed description thereof will not be repeated here.

  The above embodiment should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The above description includes the following features.

[Appendix 1]
A charge control device used in a power system including a power generation device and a power storage device,
A determination unit that determines whether the power generation device can start power generation by the start timing of a power saving period;
When the determination unit determines that the power generation device cannot start power generation by the start timing, the control unit performs control to start discharging of the power storage device at a timing based on the start timing,
The charging control device, the power generation device, and the power storage device are installed in a power demand facility that receives power supply from the outside,
The determination unit determines whether the power generation device can start power generation by the start timing of the power saving period when the charging control device receives the power saving request information indicating the power saving period in the power demand facility. And
The charge control device, wherein the power generation device is a fuel cell.

[Appendix 2]
A charge control device used in a power system including a power generation device and a power storage device,
The power generation device generates power using natural energy,
A prediction unit for performing prediction regarding the power generation amount of the power generation device in part or all of the power saving period;
A control unit that performs control to limit discharging of the electricity storage device before the power saving period, based on the prediction content by the prediction unit;
The charging control device, the power generation device, and the power storage device are installed in a power demand facility that receives power supply from the outside,
The prediction unit performs the prediction based on information on weather when the charging control device receives the power saving request information indicating the power saving period in the power demand facility,
The power generation device is a charge control device that is a solar power generation device or a wind power generation device.

[Appendix 3]
A charge control device;
An electricity storage device;
Power generation device,
The charging control device determines whether or not the power generation device can start power generation by the start timing of a power saving period, and determines that the power generation device cannot start power generation by the start timing. At the timing based on, the discharge start instruction for starting the discharge to the electricity storage device is transmitted to the electricity storage device,
The power storage device receives the discharge start instruction from the charge control device and starts discharging,
The charging control device, the power generation device, and the power storage device are installed in a power demand facility that receives power supply from the outside,
The charging control device determines whether the power generation device can start power generation by the start timing of the power saving period when receiving power saving request information indicating the power saving period in the power demand facility;
The power system, wherein the power generation device is a fuel cell.

[Appendix 4]
An electricity storage device;
A power generation device that uses natural energy to generate electricity;
A charge control device capable of controlling the power storage device,
The charge control device makes a prediction regarding the power generation amount of the power generation device in part or all of the power saving period, and limits discharge of the power storage device before the power saving period based on its own prediction content,
The charging control device, the power generation device, and the power storage device are installed in a power demand facility that receives power supply from the outside,
The charging control device, when receiving the power saving request information indicating the power saving period in the power demand facility, performs the prediction based on information on weather,
The electric power system, wherein the power generation device is a solar power generation device or a wind power generation device.

[Appendix 5]
A terminal device used in a power system including a power generation device, a power storage device mounted on a vehicle, and a charge control device,
The charging control device determines whether the power generation device can start power generation by the start timing of the power saving period, and determines that the power generation device cannot start power generation by the start timing, the start timing At the timing based on the control to start discharging the power storage device,
A transmission unit for transmitting vehicle use schedule information related to the use schedule of the vehicle to the charge control device;
A reception unit that receives information on the use of the vehicle in the power saving period, created based on the use schedule of the vehicle, from the charging control device;
The charging control device, the power generation device, and the power storage device are installed in a power demand facility that receives power supply from the outside,
The charging control device determines whether the power generation device can start power generation by the start timing of the power saving period when receiving power saving request information indicating the power saving period in the power demand facility;
The terminal device, wherein the power generation device is a fuel cell.

DESCRIPTION OF SYMBOLS 1 Electricity supplier 2 Aggregator 3 Electricity demand facility 10 Electricity supplier server 20 DR server 30 Controller 31 Electric power generation device 32 Power storage device 33 Electric equipment 34 Terminal device 38 Electric vehicle 39 Consumer 41 Acquisition part 42 Judgment part 43 Control part 44 Storage part 45 Prediction unit 47 Usage information output unit 51 Operation unit 52 Reception unit 53 Processing unit 54 Transmission unit 55 Display unit 101, 102, 103, 201 Power system 130 Controller

Claims (16)

A charge control device used in a power system including a power generation device and a power storage device,
A determination unit that determines whether the power generation device can start power generation by the start timing of a power saving period;
A charge control comprising: a control unit that performs control to start discharging the power storage device at a timing based on the start timing when the determination unit determines that the power generation device cannot start power generation by the start timing. apparatus.   The charge control device according to claim 1, wherein the control unit starts the power generation device before the start timing, and stops discharging the power storage device when the power generation device starts power generation. A charge control device used in a power system including a power generation device and a power storage device,
The power generation device generates power using natural energy,
A prediction unit for performing prediction regarding the power generation amount of the power generation device in part or all of the power saving period;
A charge control device comprising: a control unit that performs control to limit discharging of the power storage device before the power saving period based on the prediction content by the prediction unit.   The charge control device according to any one of claims 1 to 3, wherein the control unit performs control for charging the power storage device before the power saving period based on a remaining power storage amount of the power storage device. The power storage device is mounted on a vehicle,
The charge control device further includes:
5. The charge control device according to claim 1, further comprising: a usage information output unit configured to output information related to the use of the vehicle during the power saving period based on a use schedule of the vehicle. The power storage device is mounted on a vehicle,
6. The charge control device according to claim 1, wherein the control unit performs at least one of charging and discharging limitation of the power storage device based on a planned travel distance of the vehicle. The determination unit determines whether the power generation device can start power generation by the end timing of the power saving period,
The charging according to any one of claims 1 to 6, wherein the control unit does not start the power generation device when the determination unit determines that the power generation device cannot start power generation by the end timing. Control device. A charge control device;
An electricity storage device;
Power generation device,
The charging control device determines whether or not the power generation device can start power generation by the start timing of a power saving period, and determines that the power generation device cannot start power generation by the start timing. At the timing based on, the discharge start instruction for starting the discharge to the electricity storage device is transmitted to the electricity storage device,
The power storage device receives the discharge start instruction from the charge control device and starts discharging. An electricity storage device;
A power generation device that uses natural energy to generate electricity;
A charge control device capable of controlling the power storage device,
The charge control device performs prediction related to the amount of power generated by the power generation device during a part or all of a power saving period, and restricts discharging of the power storage device before the power saving period based on its own prediction content. A terminal device used in a power system including a power generation device, a power storage device mounted on a vehicle, and a charge control device,
The charging control device determines whether the power generation device can start power generation by the start timing of the power saving period, and determines that the power generation device cannot start power generation by the start timing, the start timing At the timing based on the control to start discharging the power storage device,
A transmission unit for transmitting vehicle use schedule information related to the use schedule of the vehicle to the charge control device;
A terminal device, comprising: a receiving unit that receives, from the charging control device, information related to the use of the vehicle during the power saving period, which is created based on the use schedule of the vehicle. A charge control method in a charge control device used in a power system including a power generation device and a power storage device,
Determining whether the power generation device can start power generation by the start timing of a power saving period; and
And a step of performing control to start discharging of the power storage device at a timing based on the start timing when it is determined that the power generation device cannot start power generation by the start timing. A charge control method in a charge control device used in a power system including a power generation device and a power storage device,
The power generation device generates power using natural energy,
Performing a prediction on the amount of power generated by the power generation device in part or all of the power saving period;
And a step of performing a control to limit discharging of the electricity storage device before the power saving period based on the content of the prediction. A charge control method in a terminal device used in a power system including a power generation device, a power storage device mounted on a vehicle, and a charge control device,
The charging control device determines whether the power generation device can start power generation by the start timing of the power saving period, and determines that the power generation device cannot start power generation by the start timing, the start timing At the timing based on the control to start discharging the power storage device,
Transmitting vehicle use schedule information related to the vehicle use schedule to the charging control device;
Receiving from the charge control device information related to the use of the vehicle during the power saving period created based on the use schedule of the vehicle. A charge control program used in a charge control device used in a power system including a power generation device and a power storage device, the computer comprising:
Determining whether the power generation device can start power generation by the start timing of a power saving period; and
A charge control program for executing a control to start discharging of the electricity storage device at a timing based on the start timing when it is determined that the power generation device cannot start power generation by the start timing. A charge control program used in a charge control device used in a power system including a power generation device and a power storage device,
The power generation device generates power using natural energy,
On the computer,
Performing a prediction on the amount of power generated by the power generation device in part or all of the power saving period;
A charge control program for executing a step of controlling to limit discharging of the electricity storage device before the power saving period based on the content of the prediction. A charge control program used in a power generation device, a power storage device mounted on a vehicle, and a terminal device used in a power system including a charge control device,
The charging control device determines whether the power generation device can start power generation by the start timing of the power saving period, and determines that the power generation device cannot start power generation by the start timing, the start timing At the timing based on the control to start discharging the power storage device,
Transmitting vehicle use schedule information related to the vehicle use schedule to the charging control device;
A charge control program for executing a step of receiving, from the charge control device, information related to the use of the vehicle during the power saving period, which is created based on the use schedule of the vehicle.

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