WO2019225834A1

WO2019225834A1 - Power supply control system and method using energy storage device and photovoltaic power generation

Info

Publication number: WO2019225834A1
Application number: PCT/KR2019/001606
Authority: WO
Inventors: 김유하; 유양우
Original assignee: 주식회사 광명전기
Priority date: 2018-05-23
Filing date: 2019-02-11
Publication date: 2019-11-28
Also published as: KR101945501B1; CN111164853A

Abstract

An embodiment of the present invention provides a power supply control system comprising: a photovoltaic power generation amount prediction unit for predicting the power generation amount of a photovoltaic power generation module on the basis of solar radiation data; a power consumption amount prediction unit for predicting the real-time power consumption amount of a consumer on the basis of past power consumption data of the consumer which is an object to be supplied with power; and a power supply control unit for, on the basis of information of the power generation amount predicted by the photovoltaic power generation amount prediction unit, information of the real-time power consumption amount of the consumer predicted by the power consumption amount prediction unit and information of the amount of power stored in an ESS, supplying power to the consumer by means of a controller if the real-time power consumption amount of the consumer is greater than a target power demand of the consumer.

Description

Power supply control system and method using energy storage device and photovoltaic power generation

The present invention relates to a power supply control system and method using an energy storage device and photovoltaic power generation, and more particularly, a target demand power amount of each of a plurality of customers, a strategic production amount according to photovoltaic power generation, and a power amount stored in the energy storage device The present invention relates to an energy storage device and a power supply control system using photovoltaic power generation that supply power to consumers by continuously comparing them.

An energy storage system (ESS) is a device for improving energy use efficiency and inducing stabilization of a power supply system by storing and using electrical energy when needed. In general, ESS is used to prevent large power outages during periods of high power consumption, such as summer, or in areas with many factories. Especially in high power usage areas such as industrial complexes where large factories are concentrated, it is necessary to use ESS to prevent blackout and to lower power bills.

In the conventional ESS, electricity is generated and stored at night when power consumption is low and the electricity bill is relatively low. Then, ESS is used to supply power stored in the ESS during the day when the electricity consumption is high and the electricity bill is relatively expensive. Renewable energy is used to produce power during the daytime when there is a lot of sunlight, and is used by mixing it with grid power.

As such, ESS needs to be spread to various types of consumer groups (industrial, commercial buildings, multi-unit houses, etc.) due to various advantages, but low operating profits and high initial investment costs are hindering the spread of ESS. . Therefore, a new value-added method using ESS has emerged, and a service that stores energy generated through solar power generation in the ESS and uses the energy stored in the ESS to supply power to the consumer when the customer needs it has appeared.

However, the power supply service as described above has a problem that does not consider the amount of power due to solar power generation, the ever-changing ESS battery, the target demand power amount of the customers, which must be different depending on weather conditions.

The present invention has been made to solve the above problems, the technical problem to be achieved is to continuously compare the target demand power amount of each of the plurality of customers and the strategic production amount according to the photovoltaic power generation and the amount of power stored in the energy storage device The energy storage device to provide the target demand power to the consumer, and to notify the consumer of the corrected target power when the sum of the amount of electricity generated by the solar power generation and the amount of power stored in the energy storage device does not reach the target demand power; It is to provide a power supply control system and method using solar power generation.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned above may be clearly understood by those skilled in the art from the following description. There will be.

In order to solve the above technical problem, an embodiment of the present invention provides a photovoltaic power generation module for producing electrical energy using sunlight, an ESS (Energy Storage System) for storing electrical energy produced by the photovoltaic module, In addition, in the power supply control system using a solar energy operation system including a controller for controlling the movement of the electrical energy produced by the photovoltaic module and the electrical energy stored in the ESS, based on the solar radiation data A photovoltaic power generation predicting unit configured to predict a power generation amount of a power generation module, a power consumption predicting unit configured to predict a real-time power consumption of a customer based on past power usage data of a customer to be supplied with power, and the photovoltaic power generation predicting unit is predicted The amount of power generation and the customer predicted by the power consumption prediction unit And a power supply controller configured to supply power to the customer through the controller when the real time power consumption of the customer is higher than a target demand power of the customer based on the information of the real time power consumption and the information of the power amount stored in the ESS. It provides a power supply control system.

In the present embodiment, the power supply control unit, when the power generation amount is greater than or equal to the value obtained by subtracting the target demand power amount from the real-time power used by the power supply to the customer using the power produced by the photovoltaic module. And the power generation amount is less than the value obtained by subtracting the target demand power amount from the real time power consumption, but the sum of the power generation amount and the amount of power stored in the ESS is greater than or equal to the value obtained by subtracting the target demand power amount from the real time power consumption. The power generated by the photovoltaic module and the power stored in the ESS may be used to supply power to the customer.

In the present embodiment, if the sum of the amount of power generated and the amount of power stored in the ESS is less than the value obtained by subtracting the target demand amount of power from the real-time use amount of power, the supply power calculation unit is configured to calculate the supply power available to the customer The power supply controller may supply the power supplied by the power supply calculator to the customer.

In the present embodiment, the customer is a customer group consisting of a plurality of customers, the power consumption prediction unit predicts the real-time power consumption of each of the plurality of customers based on the past power usage data of the plurality of customers, the power supply The control unit is based on the information of the amount of power predicted by the photovoltaic power generation predictor, the information of the real-time power consumption of each of the plurality of customers predicted by the power usage predictor and the information of the amount of power stored in the ESS, the real-time power consumption is the target demand power amount When the power is supplied to a higher customer, and the sum of the amount of electricity generated and the amount of power stored in the ESS is smaller than the sum of the real-time power consumption of the plurality of customers minus the sum of the target demand power amounts of the plurality of customers, the supply A power calculation unit accommodates the plurality of Calculating the available power can be supplied to, respectively, the power supply control unit may supply the power supply output by the supply power calculation section to each of the plurality of suyongga.

In the present embodiment, when the sum of the amount of power generated and the amount of power stored in the ESS is smaller than the sum of the real-time power consumption of the plurality of customers less the sum of the target demand power of the plurality of customers, the supply power calculating unit The amount of power supplied x to each of the plurality of customers, which is a value obtained by subtracting a target demand power amount from the real-time power consumption of each of the plurality of customers, may be calculated by the following equation.

X = (An / Y) * (K + S), where An is a predetermined target reduction power amount for each of the plurality of customers, Y is a sum of predetermined target supply power amounts for each of the plurality of customers, and K is The amount of power stored in the ESS, S, represents the amount of power generated.

In the present embodiment, when the sum of the amount of power generated and the amount of power stored in the ESS is smaller than the sum of the real-time power consumption of the plurality of customers less the sum of the target demand power of the plurality of customers, the supply power calculating unit Compute each power rate for the amount of power of each of the plurality of customers by subtracting a target demand power amount from each real-time power consumption, and supply power available to each of the plurality of customers such that the sum of the respective power rates is minimum. Can be calculated.

In the present embodiment, when the sum of the amount of power generated and the amount of power stored in the ESS is smaller than the sum of the real-time power consumption of the plurality of customers less the sum of the target demand power of the plurality of customers, the supply power calculating unit The supply power that can be provided to each of the plurality of customers may be calculated such that each electric charge for the amount of power obtained by subtracting a target demand power amount from each of the plurality of customers in real time is equal.

In addition, in order to solve the above technical problem, another embodiment of the present invention, a photovoltaic module for producing electrical energy using sunlight, and ESS (Energy) for storing the electrical energy produced by the photovoltaic module Storage System), and a method using a power supply control system using a solar energy operation system comprising a controller for controlling the movement of electrical energy produced by the photovoltaic module and the movement of electrical energy stored in the ESS, A predicting step of the power supply control system predicting a generation amount of the photovoltaic module based on solar radiation data, and predicting a real-time used power amount of a customer based on past power usage data of a customer to be supplied with power, and the power supply control system The real-time power consumption of the customer, the target demand power of the customer The power supply control system determines whether the supply power is higher than the target demand power of the consumer according to the supply availability determination step of determining whether the supply is higher and the supply availability determination step is higher than the target demand power amount of the customer. And a power supply step of supplying power to the customer through the controller based on the information of the real-time power amount used by the customer and the information on the amount of power stored in the ESS.

In the present embodiment, the power supply step, if the power generation amount is greater than or equal to the value obtained by subtracting the target demand power amount from the real-time use power amount, the power supply control system, the power produced by the photovoltaic module Supplies power to the customer, and the power generation amount is smaller than the real-time power consumption by subtracting the target power demand, but the sum of the power generation amount and the amount of power stored in the ESS is subtracted from the real-time power usage. If greater than or equal to the value, the power supply control system may be a step of supplying power to the customer using the power generated by the solar power module and the power stored in the ESS.

In the present embodiment, in the power supply step, the power supply control system compares the target demand power amount with the sum of the power generation amount and the power amount stored in the ESS and the real-time use power amount to provide the power supply to the customer. The calculation may further include calculating a supply power.

In the present embodiment, the customer is a customer group consisting of a plurality of customers, the predicting step, the power supply control system, based on the solar radiation data to predict the generation amount of the solar power module and the past of the plurality of customers A step of estimating the real-time power consumption of each of the plurality of consumers based on power usage data, wherein the power supply step, the power supply control system, the information of the estimated power generation amount and the information of the real-time power consumption of each of the plurality of consumers And based on the information of the amount of power stored in the ESS, it may be a step of supplying power to the customer the real-time power consumption is higher than the target demand power.

In the present embodiment, when the sum of the amount of power generated and the amount of power stored in the ESS is less than the sum of the real-time power consumption of the plurality of customers minus the sum of the target demand power of the plurality of customers, the supply power calculation process The power supply control system may be a process of calculating a supply power amount x that can be provided to each of the plurality of customers, which is a value obtained by subtracting a target demand power amount from the real-time power consumption of each of the plurality of customers through the following equation.

In the present embodiment, when the sum of the amount of power generated and the amount of power stored in the ESS is less than the sum of the real-time power consumption of the plurality of customers minus the sum of the target demand power of the plurality of customers, the supply power calculation process The power supply control system calculates each power rate for a power amount of a value obtained by subtracting a target demand power amount from a real-time use power amount of each of the plurality of customers, and the plurality of power rates such that the sum of the respective power rates is minimum. It may be a process of calculating the supply power available to each of the dog customers.

In the present embodiment, when the sum of the amount of power generated and the amount of power stored in the ESS is less than the sum of the real-time power consumption of the plurality of customers minus the sum of the target demand power of the plurality of customers, the supply power calculation process The power supply control system calculates a supply power that can be provided to each of the plurality of consumers such that each power rate is equal to the amount of power obtained by subtracting a target demand power amount from the real-time use power amount of each of the plurality of customers. It can be a process.

According to the present invention, the target demand power amount of each of the plurality of consumers continuously compares the strategic production amount according to the photovoltaic power generation and the power stored in the energy storage device to provide the target demand power amount to the customer, When the sum of the amounts of power stored in the energy storage device does not reach the target demand power amount, the customer may be notified of the revised value of the target demand power.

Further, according to the present invention, after providing a power service to a plurality of customers, the power stored in the energy storage device may be sold and sold to maximize operating profits.

The effects of the present invention are not limited to the above-described effects, but should be understood to include all the effects deduced from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a block diagram illustrating a schematic configuration of a system for providing a power service to a plurality of consumers by using an energy storage device applicable to embodiments of the present invention.

FIG. 2 is a schematic diagram showing the detailed configuration and connection relationship of a system for providing a power service to a plurality of consumers by using an energy storage device applicable to embodiments of the present invention.

3 illustrates an example of a consumer load pattern applicable to embodiments of the present invention.

4 is a diagram illustrating desired service information applicable to embodiments of the present invention.

5 is a flowchart illustrating a procedure of a method of providing a power service to a plurality of consumers by using an energy storage device applicable to embodiments of the present invention.

FIG. 6 is a diagram illustrating a detailed process of a service providing step of a method of providing a power service to a plurality of consumers by using an energy storage device applicable to embodiments of the present invention.

7 is a diagram illustrating a peak cut service applicable to embodiments of the present invention.

8 to 10 are diagrams for explaining a PQ service applicable to embodiments of the present invention.

11 and 12 are diagrams for explaining a UPS service applicable to embodiments of the present invention.

FIG. 13 is a diagram for explaining matters to be considered for providing a power service to consumers according to an embodiment of the present invention.

14 is a block diagram illustrating a configuration of a power supply control system using an energy storage device and photovoltaic power generation according to an embodiment of the present invention.

15 is a view illustrating a concept of a power supply control system using an energy storage device and photovoltaic power generation according to an embodiment of the present invention.

16 is a view illustrating in more detail the power supply control system using the energy storage device and the photovoltaic power generation and connectable elements according to an embodiment of the present invention.

17 is a diagram illustrating a process of calculating supply power according to an embodiment of the present invention.

18 is a flowchart illustrating a procedure of a power supply control method using an energy storage device and photovoltaic power generation according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In addition, the accompanying drawings are intended to facilitate understanding of the embodiments disclosed herein, but are not limited to the technical spirit disclosed herein by the accompanying drawings, all changes included in the spirit and scope of the present invention. It is to be understood to include water, equivalents and substitutes. And the part not related to the description in order to clearly describe the present invention in the drawings are omitted, the size, shape, shape of each component shown in the drawings may be variously modified, the same / similar parts for the entire specification Identical / similar reference numerals are used.

The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other. In addition, in describing the embodiments disclosed herein, when it is determined that the detailed description of the related known technology may obscure the gist of the embodiments disclosed herein, the detailed description is omitted.

Throughout the specification, when a part is said to be "connected (connected, contacted or coupled) with another part, it is not only when it is" directly connected (connected, contacted or coupled) ", but also in between. This includes cases in which "indirectly connected (connecting, contacting or coupling)" therebetween. Also, when a part is said to "include (or prepare)" a component, it is not to exclude other components, but to "include (or prepare)" other components, unless specifically stated otherwise. That means you can.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. As used herein, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

In addition, terms including ordinal numbers, such as first and second, as used herein may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

1 is a schematic configuration of a system (hereinafter, referred to as “solar energy management system 100”) that provides power service to a plurality of consumers by using an energy storage device applicable to embodiments of the present invention. FIG. 2 is a block diagram illustrating the detailed configuration of the solar energy management system 100 and its connection relationship.

1 and 2, the solar energy operation system 100 includes a solar power module 110, an energy storage system (ESS) 120, a controller 130, and a customer group selector 140. .

The photovoltaic module 110 produces electrical energy using solar light and may be formed in a form including one or more photovoltaic (PV) modules.

The ESS 120 stores the electrical energy produced by the photovoltaic module 110, and the controller 130 controls the movement of the electrical energy produced by the photovoltaic module 110 and the electrical energy stored in the ESS 120. Control the movement The controller 130 may be implemented in a form that includes specific components described below and a separate device (eg, a computer, a smartphone, etc.) for controlling the components.

In detail, the

controllers

130 and 130 include a solar power conversion system (PCS) 131 having a solar inverter for converting the direct current electrical energy produced by the photovoltaic module 110 into the form of alternating current electrical energy. And a plurality of load-side power conversion systems (PCS) 132 having a unidirectional inverter that transfers the electrical energy stored in the ESS 120 to the load side but blocks the electrical energy of the load side from moving to the ESS 120 side. The ESS 120 may include an ESS PCS (Power Conversion System) 133 having a bidirectional inverter for transmitting AC electric energy to the ESS 120 and transmitting the electric energy stored in the ESS 120 to the outside.

In addition, the photovoltaic PCS 131 further includes a solar energy meter for measuring the amount of electrical energy produced by the photovoltaic module 110, and each load side PCS 132 is configured to control the amount of electrical energy delivered to the load side. It is further provided with a load-side meter for metering the quantity, the ESS PCS 133 further includes an ESS 120 meter for metering the amount of electrical energy stored in the ESS 120 and the amount of electrical energy supplied from the ESS 120 to the outside. It can be provided.

The customer

group selecting unit

140 or 140 analyzes the load pattern of the customer based on the previously provided information of the customer, and selects a customer group including a plurality of customers as the load side, which is a supply target of the electric energy stored in the

ESS

120 or 120. Select.

More specifically, the customer group selector 140 analyzes the load pattern of the hourly customer based on the information of the previously provided customer, and sets the type of the customer as a regular power use customer or an irregular power use customer according to the analysis result. For example, a population of consumers may be formed to include one or more regular power usage consumers and irregular power usage consumers.

In addition, the customer group selector 140 analyzes the load pattern of the hourly customer based on the information of the provided customer, and according to the analysis result, the type of the customer is a daytime high-power user, night-time high-power user, day and night constant power use customer Alternatively, it may be set to a specific time zone high power usage audience, and the customer group may be formed to include one or more daytime high power usage customers and nighttime high power usage customers, or may be configured to include one or more day and night constant power usage customers and a specific time zone high power usage customers. .

Here, the information of the provided customer may include at least one of a kind of a customer, a maximum power consumption of the customer, a minimum power consumption of the customer, a power usage time of the customer, a location of the customer, and an electric charge of the customer.

Referring to FIG. 3, which shows an example of a load pattern of a customer applicable to embodiments of the present invention, the customer group selector 140 regularly checks a customer who uses a lot of power during the daytime, such as the load pattern sample A 301. It may be set to a power usage audience or a daytime high power usage audience, and a consumer with high power usage at night time, such as the load pattern sample B 302, may be set to a regular power usage audience or a nighttime high power usage audience. In addition, the customer group selecting unit 140 may set the customer with a high power consumption in both the load pattern sample C 303 and the day and night time zone as a regular power use customer or a day and night constant power use customer, For example, a customer who consumes only a certain amount of time can be set up as a non-periodical consumer or for a specific period of time.

As a result, when the solar energy management system 100 is used, the efficiency of the operation of the ESS may be improved by grouping a group of consumers to be provided with the power service based on the power usage trend of each of the plurality of consumers.

Meanwhile, referring back to FIGS. 1 and 2, the solar energy management system 100 may further include a power system 150 for supplying external grid power. In general, the power system 150 in Korea supplies the electrical energy provided by KEPCO.

The electrical energy stored in the ESS 120 may be transferred to the power system through the bidirectional inverter by the controller 130 and may be transmitted to the outside. Accordingly, the solar energy operation system 100 may increase sales revenue by providing services to customers and selling the remaining electrical energy in the ESS 120 to the power system 150. In addition, since the unidirectional inverter is installed in the load-side customer, general power used by the load side cannot be transmitted to the ESS, and thus all the electric energy stored in the ESS is generated by the solar power generation of the photovoltaic module 110. Using the energy management system 100 can maximize sales revenue

FIG. 4 is a diagram illustrating desired service information applicable to embodiments of the present invention. Referring to FIG. 4, the controller 130 may include a peak cut service, a PQ service, and a UPS service from each of a plurality of customers. Receiving the desired service information corresponding to any one, using the electrical energy stored in the ESS 120 may provide a service according to the desired service information to each of the plurality of customers.

In addition, the controller 130 uses the plurality of consumers in real time based on target demand power information of the plurality of customers, power generation information of the photovoltaic module 110, electrical energy information stored in the ESS 120, and current time information. When the power is checked and the real-time power used by the specific customer is greater than the power used according to the target demand power information of the specific customer, the electric energy produced by the photovoltaic module 110 or the electricity stored in the ESS 120 at the specific customer. Can provide energy.

The real-time power consumption of the customer described herein means the amount of power expected to be used for a predetermined time of the customer, and the target demand power amount means the amount of power previously set by the customer for use during the predetermined time of the customer, and the target The reduced power amount means a power amount preset by the system provider to be supplied during the predetermined time of the customer.

In general, the base rate of the domestic electricity bill is determined based on the peak value of electrolytic power use, so lowering the peak value can save the base rate. For example, when the A consumer sets the target demand power to 1000 KW, the controller 130 checks this, and when the A consumer uses the power greater than 1000 KW, the electric energy produced by the photovoltaic module 110 as the A consumer. Alternatively, the electrical energy stored in the ESS 120 may be provided. Accordingly, the A customer can obtain the effect of reducing the basic fee of the electric bill. This service is called a peak cut service.

In the peak cut service, when the amount of generation of the photovoltaic module 110 is greater than or equal to the power used by the load at a preset day time, the controller 130 may identify the photovoltaic module 110 using the electrical energy produced by the photovoltaic module 110. After supplying electrical energy to the customer, the remaining electrical energy may be stored in the ESS 120.

In addition, as the controller 130 stores the remaining electric energy of the electric energy produced by the photovoltaic module 110 in the ESS 120, a state of charge (SOC) of the ESS 120 becomes greater than or equal to a preset ratio. In this case, the controller 130 may transmit the electric energy stored in the ESS 120 to the power system 150 through the bidirectional inverter. This allows the system operator to earn sales revenue by selling power sold to the power system. The predetermined ratio of SOC may be set to 80% or more or 100%, but is not limited thereto.

In addition, when the amount of power generated by the photovoltaic module 110 is less than the power used by the load at a preset day time, the controller 130 may convert the electrical energy stored in the ESS 120 into a predetermined ratio of the SOC of the ESS 120. It can be discharged until it can supply electrical energy to a particular consumer, where the predetermined ratio of SOC may be 20%, but is not limited thereto.

As such, when the real-time power used by a particular customer is greater than the power used according to the target demand power information of the specific customer, the system manager may generate the amount of power generated by the solar power module 110 at a preset daytime through the controller 130. By comparing the power used on the load side, it is possible to efficiently determine whether to supply the electric energy produced by the photovoltaic module 110 to the customer, or to use the electric energy for the customer by discharging the energy stored in the ESS 120.

5 is a flowchart illustrating a procedure of a method of providing a power service to a plurality of consumers by using an energy storage device applicable to embodiments of the present invention, and FIG. 6 is applicable to embodiments of the present invention. FIG. Is a view illustrating a detailed process of a service providing step of a method of providing a power service to a plurality of consumers by using an energy storage device.

Since a method of providing a power service to a plurality of consumers by using an energy storage device applicable to embodiments of the present invention is an operation method using the solar energy operation system 100 described above with reference to FIGS. 1 to 4. In the following description, the description overlapping with the above description will be omitted.

Referring to FIG. 5, a method of providing a power service to a plurality of consumers by using an energy storage device according to the present embodiment includes a photovoltaic module and a photovoltaic module that generate electrical energy using solar light. It includes an ESS (Energy Storage System) that stores the generated electric energy, a controller that controls the movement of the electric energy produced by the photovoltaic module and the movement of the electric energy stored in the ESS, and a consumer group selector that selects the target audience group for service. As a method of operating a solar energy management system, a customer group selector analyzes a load pattern of a customer based on information provided by a customer (s510), and a customer group selector selects a plurality of consumers to be serviced based on the results of the analysis step. A consumer group forming step of forming a consumer group including s520, and the controller returns Of the desired service information being transmitted from suyongga respectively, and a service providing step (s530) for providing a service according to the desired service information using the electric energy stored for each of a plurality of suyongga the ESS.

In the analyzing step (s510), the customer group selector analyzes the load pattern of the customer over time based on the information of the pre-provided customer, and sets the type of the customer as a regular power use customer or an irregular power use customer according to an analysis result. It may be a step. In this case, the customer group forming step (s520) may be a step in which the customer group selector forms the customer group to include one or more regular power usage consumers and irregular power usage consumers.

In addition, the analyzing step (s510). The customer group selector analyzes the load pattern of the customer over time based on the information of the provided customer, and according to the analysis result, the type of the customer is selected as a daytime high-power user, nighttime high-power user, day / night constant power user, or specific time zone high power. It may be a step of setting the use audience. At this time, in the consumer group forming step (s520), the consumer group selector forms the consumer group to include one or more daytime high-power user and nighttime high-power user, or one or more night / day constant power use customers and specific time zone high-power user consumers. It may be a step of forming to include.

In addition, the desired service information may correspond to any one of a peak cut service, a PQ service, and a UPS service, and the information on the provided customer may include the type of customer, the maximum power consumption of the customer, the lowest power consumption of the customer, and the power usage of the customer. It may include at least one or more of the time, the location of the customer and the electric charge of the customer.

Referring to FIG. 6, the service providing step (s530) may be performed by the controller based on target demand power information of the plurality of customers, power generation information of the solar power module, electrical energy information stored in the ESS, and current time information. When the real-time power usage of a plurality of customers is checked, if the real-time power usage of a particular customer is greater than the power used according to the target demand power information of the specific customer, the electrical energy produced by the photovoltaic module at the specific customer or the Providing electrical energy stored in the ESS (S610).

In addition, in the service providing step (s530), when the amount of generation of the photovoltaic module is greater than or equal to the power used by the load at a preset day time, the controller uses the energy produced by the photovoltaic module to supply electricity to the specific customer. The remaining electrical energy after supplying energy may further include a storage process (s621) for storing in the ESS.

At this time, the system for providing a power service to a plurality of consumers using the energy storage device further includes a power system for supplying external system power, the service providing step (s530) according to the storage process (s621) When the SOC of the ESS is greater than or equal to a preset ratio, the controller may further include a selling process s622 of transmitting the electrical energy stored in the ESS to the power system so as to be sold to the power system.

Unlike this, in the service providing step S530, when the generation amount of the photovoltaic module is less than the use power of the load side at a preset day time after s610, the controller sets the SOC of the ESS to the electric energy stored in the ESS. It may further include a discharge process (s630) for supplying electrical energy to the specific consumer by discharging until the ratio.

In addition, the method for providing a power service to a plurality of consumers using the energy storage device according to the present embodiment includes all the functions and procedures performed by the solar energy operation system 100 described with reference to FIGS. 1 to 4. It may include.

As described above, the peak cut service refers to a service that provides a power value for the difference between the peak value and the target demand power to the customer through the ESS when a peak value higher than the target demand power is generated.

An implementation example of a method of providing a peak cut service using a solar energy operation system applicable to embodiments of the present invention will be described with reference to FIG. 7.

First, the target demand power of N customers is calculated, and the amount of photovoltaic generation of the photovoltaic module is checked. Thereafter, the real-time power usage of the N customers is monitored. For example, in the method of providing a peak cut service applicable to the embodiments of the present invention, if the real-time used power P1 of the first consumer is greater than the target demand power P1 target of the first consumer, the remaining 2, 3, 4 Times… . The real-time power used (P2, P3, P4, ...) of each of the customers and the target demand power (P2 target, P3 target, P4 target, ...) can also be compared to determine which customers will provide the peak cut service.

After the customer selection process is completed, the controller can calculate the amount of solar power generated and the power value to be provided to the customers, and perform the peak cut service considering the SOC of the ESS.

In addition, the method of providing a peak cut service according to the present invention may additionally include a priority selection process for providing a priority to power. The priority selection process is a method of providing power preferentially to customers with a large difference between peak value and target demand power. If the SOC of the ESS is more than 50%, the priority selection process immediately provides the peak cut service to the customers, but the SOC of the ESS is less than 20%. After increasing the charging amount of the ESS may be implemented by a method such as providing a peak cut service to the consumer, but is not limited thereto. In addition, the method of providing a peak cut service may include providing a peak cut service and allowing the remaining power to be sold to the power system.

8 to 10 are diagrams for explaining a power quality (PQ) service applicable to embodiments of the present invention, with reference to this a solar energy operating system applicable to embodiments of the present invention. An implementation example of a method of providing a PQ service using the above will be described.

First, the PQ service provision method checks the photovoltaic generation of the photovoltaic module and SOC of the ESS, and monitors the trunk load voltage and load current for N customers. This process measures the bus voltages V1, V2, ... Vn of the

customers

1, 2, and 3. to compensate for Voltage Dip, which is one of the power quality of the customer. It may be a step of measuring .In.

Next, the PQ service provision method is based on the production industry of each customer, if the facilities are sensitive to the voltage fluctuations, the lower limit of the voltage variation of each customer V1 target,…. By specifying the Vn target in advance, it is determined whether the bus voltage of the corresponding customer is less than or equal to the lower limit of the voltage variation, and when the value is less than or equal to, the voltage variation compensation service is performed for the corresponding customer.

Next, the PQ service providing method is to operate the PCS installed in each customer and to increase the PCS current value by increasing the PCS rated current value by a predetermined value (for example, by 10%) so that the bus voltage of the customer is above the lower limit of voltage variation. You can proceed. After that, when the system bus voltage of the customer returns to the normal state, it is possible to determine whether the system is abnormal and terminate all procedures of the PQ service providing method.

Referring to FIG. 9, when the load usage amount (P _load ) of specific customers is increased in a concentrated place such as an industrial complex, supply power of the system may be insufficient. At this time, the bus voltage of the system decreases (V ≤ V _stable ) and the frequency also fluctuates, which may cause problems in the customer's production facilities.

Therefore, in the case of performing voltage compensation through the ESS facility according to the present embodiment, if the current is assisted through ESS + PCS, there is a margin of system supply capacity, so that the bus voltage does not shake and the frequency fluctuation is compensated. .

In addition, PQ service may be included to increase the limit capacity of the system by supplying the forward current through the PCS if the customer has a lot of ground load. This can have an effect similar to the effect of installing a capacitor for upstream.

In other words, an increase in power consumption of a customer located at the end of the system results in a drop in system voltage. Therefore, the PQ service implements the principle of compensating the load current through the ESS connected to the customer to reduce the supply current of the system and thereby increase the margin ratio of the system to stabilize the system voltage. It is the same to reduce the apparent current of the system by supplying the forward current through the PCS when the power factor of the consumer is the ground power factor.

10 illustrates the effect of improving the power factor as described with reference to FIG. As the power factor improves, the line current is reduced by In from I ₀ to I. This reduces the distribution line losses by reducing the line currents in the grid, and has the effect of making efficient use of the power system.

Referring to Figure 10, the loss reduction rate according to the PCS for PQ service at the end of the customer is as follows.

In addition, when the line resistance is R, the calculation of the loss reduction rate and the decrease of the line voltage drop due to the improvement of the power factor of the customer are shown by the formula (E _R : power receiving side voltage, E _S : power transmitting side voltage). R, X: line resistance and reactance).

11 and 12 are diagrams for explaining an uninterruptible power supply (UPS) service applicable to embodiments of the present invention.

FIG. 11 is a flow chart showing when a UPS service is provided to an important facility (eg, computer load) in a customer.

For example, by monitoring the customer bus voltage using a solar energy operation system applicable to embodiments of the present invention and automatically switching operation using an automatic transfer switch (ATS) in the event of a power outage, the present invention is applied to embodiments of the present invention. It is possible to supply power to consumers through PCS + ESS of available solar energy operation systems.

Additionally, in the method of providing a UPS service using a solar energy operation system applicable to the embodiments of the present invention, when the system is restored, the ATS is returned to use the system voltage again, and the power failure for the ESS operator and the customer to settle later Recording the time stamp and the amount of power for providing the service for a time.

Referring to FIG. 12, the UPS service is a service for minimizing damage due to voltage fluctuations and the like that are equipped with computers or microprocessors used in office automation equipment (OA) and factory automation equipment (FA). Fig. 12 shows an example of wiring for providing a UPS model.

Referring to FIG. 12, a DC link bus of a solar energy operation system applicable to embodiments of the present invention may be connected instead of a battery of an existing UPS to provide a UPS service. A group can also be used.

When the real-time power used by the customer is higher than the target demand power of the customer, the following considerations may be considered when providing the target reduction power to the customers using the above-described solar energy operation system 100. For convenience of understanding, the power generation amount of the solar power module is 10, and the target reduction power amount subtracted from the target demand power amount from the real-time power consumption of the customer will be described together with an example. The target demand power of the customer is the amount of power required by the customer, which is measured based on the amount of power required by the customer or the historical data.The target reduction power is the real-time power consumption of the customer minus the target power of the customer. This could mean the amount of power that must be supplied to the customer.

Referring to 1301 of FIG. 13, since the power generation amount of the solar power generation module is 10 and the target reduction power amount is 8, the target reduction power amount may be supplied only by the generation power amount of the solar power generation module. At this time, the solar energy operation system can sell as much as two generations or can be stored in the ESS.

Referring to 1302 of FIG. 13, when the amount of real-time power used by the customer is increased so that the target reduction power amount of the customer is greater than 10 generation power of the solar power, the solar energy operation system uses the amount of power stored in the ESS together with the power generation of the photovoltaic module. In this way, the target audience can be provided with the amount of power reduced. As shown in 1302 of FIG. 13, when the amount of power (-2) equal to 2 discharged from the ESS is combined with the photovoltaic power generation amount 10, the target reduction power amount 12 is obtained. However, even if the amount of power stored in the ESS and the amount of photovoltaic power generation are smaller than the target reduction power amount, the supply power calculated by calculating the supply power that can be provided according to the embodiments of the present invention described below can be provided to the customer. have.

14 is a block diagram showing the configuration of a power supply control system using solar power generation (hereinafter, “power supply control system 1400”) according to an embodiment of the present invention, and FIG. 15 is a power supply control system ( 1400 is a diagram illustrating the concept of FIG. 16. FIG. 16 is a diagram illustrating the power supply control system 1400 and elements connectable thereto in more detail. As shown in FIG. 16, the power supply control system 1400 is a system using the solar energy operation system 100 described above with reference to FIGS. 1 to 12. Therefore, hereinafter, a power supply control system 1400 according to an embodiment of the present invention will be described with reference to the solar energy operation system shown in FIG. 1, and descriptions overlapping with the above description will be omitted.

As shown in FIG. 14, the power supply control system 1400 includes a photovoltaic power generation predicting unit 1410 configured to predict power generation of the photovoltaic module 110 based on the solar radiation data, and a past power of a customer to be supplied with power. The power consumption predicting unit 1420 configured to predict the real-time power consumption of the customer based on the use data, and the power generation amount predicted by the solar power generation predicting unit 1410 and the power consumption predicting unit 1420 predicted above. Based on the information of the real-time power consumption of the customer and the information of the amount of power stored in the ESS 120, when the real-time power consumption of the customer is higher than the target demand power of the customer configured to supply power to the customer through the controller 130 The power supply control unit 1430 is included.

Referring to FIG. 15, which is illustrated to explain the concept of the power supply control system 1400, as an embodiment of the power supply control system 1400, the power supply control system 1400 may generate the next solar power based on the solar radiation data. Can be predicted, and the next day's consumer power usage can be predicted based on the customer's historical power usage data. In addition, the power supply control system 1400 may determine whether to supply the target reduction power to the customer based on the predicted information and the battery information of the ESS on the day. In addition, the power supply control system 1400 supplies power to the customer if the power supply is sufficient when supplying the target reduced power, and notifies the customer in advance if sufficient power is not available, or reduces the power used by itself. Or, it can transmit information of the supply power available.

In addition, the power supply control unit 1430 supplies power to the customer using the power produced by the photovoltaic module 110 when the power generation amount is greater than or equal to the value obtained by subtracting the target demand power amount from the real-time power consumption. When the power generation amount is less than the value obtained by subtracting the target demand power amount from the real time power usage amount, and the sum of the power generation amount and the amount of power stored in the ESS 120 is greater than or equal to the value obtained by subtracting the target demand power amount from the real time power use amount, The power generated by the photovoltaic module 110 and the power stored in the ESS 120 may be used to supply power to the customer.

On the other hand, the power supply control system 1400 is configured to calculate the supply power available to the customer when the sum of the amount of power generated and the amount of power stored in the ESS 120 is smaller than the value of the real-time power used minus the target demand power. The apparatus may further include a supply power calculator 1440. Accordingly, the power supply controller 1430 may supply the supply power calculated by the supply power calculator 1440 to the customer.

In one embodiment of the present invention, the customer is a customer group consisting of a plurality of customers, the power consumption prediction unit 1420 is to predict the real-time power consumption of each of the plurality of customers based on the past power usage data of the plurality of customers Can be. Also, in the same example, the power supply controller 1430 may include information on the amount of power generated by the photovoltaic power generation predictor 1410 and information on the amount of real-time power used by each of the plurality of consumers predicted by the used power amount predictor 1420. Based on the information of the amount of power stored in the ESS 120, the real-time power consumption may supply power to the customer higher than the target demand power. Also, in the same example, when the sum of the amount of power generated and the amount of power stored in the ESS 120 is smaller than the sum of the real-time power used by the plurality of customers minus the sum of the target demand power amounts of the plurality of customers, the supply power is calculated. The unit 1440 may calculate supply power that can be provided to each of the plurality of customers, and the power supply control unit 1430 may supply the supply power calculated by the supply power calculation unit 1440 to each of the plurality of customers.

In addition, when the sum of the amount of power generated and the amount of power stored in the ESS 120 is smaller than the sum of the real-time power used by the plurality of customers by subtracting the sum of target demand power of the plurality of customers, the supply power calculation unit 1440 The power supply amount x that can be provided to each of the plurality of customers, which is a value obtained by subtracting a target demand power amount from the real-time power consumption of each of the plurality of customers, may be calculated through Equation (1) below.

X = (An / Y) * (K + S) Formula (1)

In Equation (1), An is a predetermined target reduction power amount for each of the plurality of customers, Y is the sum of the predetermined target supply power amount for each of the plurality of customers, K is the amount of power stored in the ESS 120, S Represents the power generation amount.

For example, the plurality of customers are a customer 1 (A1), a customer 2 (A2) and a customer 3 (A3), the sum of the amount of power generation and the amount of power stored in the ESS 120 is A1 to the sum of the real-time power consumption of the A1 to A3 customer To less than the sum of the target demand powers of A3 customers, the supply power P1 available to A1 is the result of {A1 / (A1 + A2 + A3)} * (K + S) and is provided to A2. Possible supply power P2 is the result of {A2 / (A1 + A2 + A3)} * (K + S), and supply power P3 available to A3 is {A3 / (A1 + A2 + A3)} * (K + S).

Referring to FIG. 17, when the sum of the amount of power generated and the amount of power stored in the ESS 120 is smaller than the sum of real-time power used by the plurality of customers minus the sum of target demand powers of the plurality of customers, a supply power calculation unit Unlike the calculation of the supply power available to the customer through Equation (1), the operation 1440 calculates each electric charge for the amount of power obtained by subtracting a target demand power amount from the real-time power consumption of each of the plurality of customers. The supply power available to each of the plurality of customers may be calculated such that the sum of the respective power rates is minimum. The calculated supply power may be supplied to the consumers by the power supply controller 1430.

In other words, the power supply control system 1400 preferentially supplies power to the customers with the highest base rate in order to minimize damages when the base rate of power usage preset for each customer of each of A1 to A3 is a, b, and c days. Can be supplied.

For example, the loss amount Z according to the power rate of the target reduction power, which is a value obtained by subtracting the target demand power from the real-time power consumption of the plurality of consumers, can be generalized by the following equation (2).

Z = a (A-A ') + b (B-B') + c (C-C ') formula (2)

Where a, b, and c are base rates of power consumption preset for each customer of A1 to A3, and A, B, and C are target reduction power amounts initially set for A1 to A3, respectively, and A ', B' and C Are the adjusted target reduction power amounts of A1 to A3, respectively. The amounts of power supplied to A1 to A3 are P1, P2 and P3, respectively.

In order for the power supply control system 1400 to minimize the power charge according to the target reduced power, the numerical values must be set such that the Z value becomes this minimum. If a> b> c, it may be represented as a flowchart shown in FIG. 17.

The power supply control system 1400 first compares the sum of the amount of power K stored in the ESS 120 with the amount of generation S of the photovoltaic module 110 with A (S1701).

Next, the power supply control system 1400, in step S1701, if the sum of S and K is less than or equal to A, provides A1 with P plus S and K and does not supply power with A2 and A3. Here, P1 corresponds to A '.

In operation S1701, if the sum of S and K is greater than A, the power supply control system 1400 determines whether the power P1 provided to A1 at the sum of S and K is greater than B (s1702). .

Next, the power supply control system 1400 supplies the power of A to A1 if the value of the power P1 provided to A1 at the sum of S and K is less than or equal to B in step S1702, and to A2. The sum of S and K is subtracted from A by the amount of power, and A3 is not supplied. Here, the amount of power remaining after subtracting power by A from the sum of S and K corresponds to B '.

In addition, the power supply control system 1400 provides the power of A to A1 and the power of B to A2 if the value of the power P1 provided to A1 in the sum of S and K is greater than B in step S1702. Power is supplied, and A3 is given the sum of S and K minus P1 and P2. Here, the amount of power remaining after subtracting P1 and P2 from the sum of S and K corresponds to C '.

Unlike the above examples, when the sum of the amount of electricity generated and the amount of power stored in the ESS 120 is less than the sum of the real-time power consumption of the plurality of customers minus the sum of the target demand power of the plurality of customers, the supply power is calculated. The unit 1440 may calculate the supply power that can be provided to each of the plurality of consumers such that each power rate is equal to the power amount of the real-time power consumption of each of the plurality of customers, minus a target demand power amount. Equation (3) below can be used.

Z = a (A-A ') + b (B-B')

a (A-A ') = b (B-B')

S + K = A '+ B'

Formula (3)

In Equation (3), a and b are basic charges of power consumption preset for each customer of customers A1 and A2, and A and B are target reduction powers initially set for customers A1 and A2, respectively, A 'and B 'Is the adjusted target reduction power of customers A1 and A2, respectively. Z is the sum of the damages (power charges) caused by the sum of the real-time used powers of the customers A1 and A2 being greater than the sum of the target demand powers of the customers A1 and A2. The power supply control unit 1430 may supply the powers A 'and B' calculated by the power supply calculation unit 1440 to the customers A1 and A2 through the controller, respectively, through Equation (3).

18 is a flowchart illustrating a procedure of a power supply control method using photovoltaic power generation according to another embodiment of the present invention, and the power supply control method using photovoltaic power generation according to the present embodiment is described with reference to FIGS. 13 to 17. The method using the power supply control system 1400 described with reference to FIG. Therefore, hereinafter, a power supply control method using photovoltaic power generation according to the present embodiment will be described, and descriptions overlapping with the above description will be omitted.

The power supply control method according to the present embodiment includes a photovoltaic module for producing electrical energy using sunlight, an ESS (Energy Storage System) for storing the electrical energy produced by the photovoltaic module, and the solar In the method using a power supply control system using a solar energy operation system including a controller for controlling the movement of electrical energy produced by the photovoltaic module and the electrical energy stored in the ESS, the power supply control system, the solar radiation A predicting step (s1810) of predicting a power generation amount of the solar power module based on the data, and predicting a real-time used power amount of a customer based on past power usage data of a customer to be supplied with power, and the power supply control system includes: Determine whether the real-time power consumption is higher than the target demand power of the customer If it is determined in step S1820 and the supply availability determination step (s1820) that the real-time power consumption of the customer is higher than the target demand power of the customer, the power supply control system, the information of the estimated generation amount And a power supply step (s1830) of supplying power to the customer through the controller based on the information of the real time power consumption of the customer and the information of the electric power stored in the ESS.

In the power supply step (s1830), when the power generation amount is greater than or equal to the value obtained by subtracting the target demand power amount from the real-time use power amount, the power supply control system uses the power generated by the photovoltaic module to generate the power. The power is supplied to a customer, and the power generation amount is smaller than the real-time power consumption minus the target demand power amount, but the sum of the power generation amount and the power amount stored in the ESS is greater than the real-time power consumption minus the target power demand amount. In the same case, the power supply control system may be a step of supplying power to the customer by using the power generated by the photovoltaic module and the power stored in the ESS.

In addition, the power supply step (s1830), the power supply control system calculates the supply power available to the customer by comparing the target demand power amount from the sum of the amount of power generation and the amount of power stored in the ESS and the real-time use power amount The method may further include a supply power calculation process.

In addition, the customer may be a customer group consisting of a plurality of customers, in this case, the prediction step (s1810), the power supply control system, based on the solar radiation data to predict the amount of generation of the solar power module and the plurality of It may be a step of predicting the real-time power consumption of each of the plurality of customers based on the customer's past power usage data. In this case, the power supply step (s1830), the power supply control system, the real-time power consumption based on the information of the estimated power generation amount, the information of the real-time power consumption of each of the plurality of customers and the amount of power stored in the ESS It may be a step of supplying power to the customer higher than the target demand power.

In addition, when the sum of the amount of power generation and the amount of power stored in the ESS is less than the sum of the real-time power consumption of the plurality of customers minus the sum of the target demand power of the plurality of customers, the supply power calculation process, the power The supply control system may be a process of calculating, through Equation (1), the amount of supply power x that can be provided to each of the plurality of customers, which is a value obtained by subtracting a target demand power amount from the real-time power consumption of each of the plurality of customers.

In addition, when the sum of the amount of power generation and the amount of power stored in the ESS is less than the sum of the real-time power consumption of the plurality of customers minus the sum of the target demand power of the plurality of customers, the supply power calculation process, the power A supply control system calculates each power rate for the amount of power obtained by subtracting a target demand power amount from the real-time power consumption of each of the plurality of customers, and supplies each of the plurality of customers so that the sum of the respective power rates is minimum. It may be a process of calculating a supply power that can be provided.

In addition, when the sum of the amount of power generated and the amount of power stored in the ESS is less than the sum of the real-time power consumption of the plurality of customers minus the sum of the target demand power of the plurality of customers, the supply power calculation process, the power The supply control system may be a process of calculating a supply power that can be provided to each of the plurality of consumers such that each electric charge for the amount of power obtained by subtracting a target demand power amount from the real-time power used by each of the plurality of customers becomes equal. .

The description of the present invention described above is for illustrative purposes, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. The scope of the present invention is represented by the following claims, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present invention.

Embodiments for carrying out the invention have been described together in the best mode for carrying out the invention.

The present invention relates to power supply control using an energy storage device and photovoltaic power generation, and is applicable to photovoltaic power generation and power supply control technology, and there is an industrial applicability since it may be repeatedly implemented.

Claims

Photovoltaic module for producing electrical energy using solar, ESS (Energy Storage System) for storing the electrical energy produced by the photovoltaic module, and the movement of electrical energy produced by the photovoltaic module In the power supply control system using a solar energy operating system comprising a controller for controlling the movement of electrical energy stored in the ESS,

A photovoltaic power generation predicting unit configured to predict a power generation amount of the photovoltaic module based on solar radiation data;

A power usage predicting unit configured to predict an estimated power consumption for a predetermined time of the customer based on past power usage data of the customer to be supplied with power; And

During the predetermined time of the customer, based on the information of the amount of electricity predicted by the photovoltaic power generation predictor, the information of the estimated amount of power used during the predetermined time of the customer predicted by the used power amount predictor, and the amount of power stored in the ESS And a power supply control unit configured to supply power stored in the ESS to the consumer through the controller when the estimated power consumption of the power is higher than a predetermined amount of power to be used for the predetermined time of the consumer. Power supply control system.
The method of claim 1,

The power supply control unit,

When the power generation amount is equal to or greater than the estimated power consumption for the predetermined time, the power generated by the solar power generation module is greater than or equal to a value obtained by subtracting the power amount predetermined to be used for the predetermined time. Supply the

The amount of power generation is less than the value of the amount of power used for the predetermined time minus the amount of power preset to be used for the predetermined time, but the sum of the amount of power generation and the amount of power stored in the ESS is expected to be used for the predetermined time. When the amount of power is greater than or equal to a value obtained by subtracting a predetermined amount of power to be used for the predetermined time, supplying power to the customer using the power generated by the solar power module and the power stored in the ESS. Power supply control system.
The method of claim 1,

When the sum of the amount of power generated and the amount of power stored in the ESS is smaller than the estimated amount of power used during the predetermined time minus the amount of power predetermined to be used for the predetermined time, supply to the customer according to a specific criterion And a supply power calculation unit configured to calculate power, wherein the power supply control unit supplies the customer with the power stored in the ESS by the calculated amount of supply power.
The method of claim 3,

The consumer is a consumer group consisting of a plurality of consumers,

The amount of power predicting unit predicts the amount of power used for a predetermined time of each of the plurality of customers based on the past power usage data of the plurality of customers,

The power supply control unit may determine a predetermined amount of power based on the information on the amount of power predicted by the photovoltaic power generation predictor and the estimated amount of power used during the predetermined time of each of the plurality of customers predicted by the amount of power used and the amount of power stored in the ESS. Supplying the power stored in the ESS to the customer higher than the amount of power estimated for the predetermined time to use for a predetermined time,

The sum of the amount of power generated and the amount of power stored in the ESS is less than the sum of the amount of power expected to be used for the predetermined time of the plurality of customers less than the sum of the amount of power preset to be used for the predetermined time of the plurality of customers. In a small case, the supply power calculating unit calculates supply power that can be provided to each of the plurality of consumers according to the specific criterion, and the power supply controller controls the power stored in the ESS by the calculated amount of supply power. And a power supply control system.
The method of claim 4, wherein

The sum of the amount of power generated and the amount of power stored in the ESS is less than the sum of the amount of power expected to be used for the predetermined time of the plurality of customers less than the sum of the amount of power preset to be used for the predetermined time of the plurality of customers. If small,

The power supply calculation unit,

The amount of power supply x that can be provided to each of the plurality of customers, which is a value obtained by subtracting the amount of power preset to be used for the predetermined time from the estimated amount of power used for each of the predetermined time, is calculated by the following equation. Power supply control system.

X = (An / Y) * (K + S)

Here, An is an amount of power predetermined to be supplied during the predetermined time for each of the plurality of customers A1, A2, A3, ..., An, and Y is the predetermined amount for each of the plurality of customers. The sum of the amounts of power preset to be used for time, K is the amount of power stored in the ESS, S is the amount of power generation.
The method of claim 4, wherein

The sum of the amount of power generated and the amount of power stored in the ESS is less than the sum of the amount of power expected to be used for the predetermined time of the plurality of customers less than the sum of the amount of power preset to be used for the predetermined time of the plurality of customers. If small,

The power supply calculating unit calculates a power rate for each amount of power by subtracting a predetermined amount of power to be used for the predetermined time from the estimated power consumption for each of the plurality of customers. And calculating supply power that can be provided to each of the plurality of customers such that the sum of power charges is minimized.
The method of claim 4, wherein

The sum of the amount of power generated and the amount of power stored in the ESS is less than the sum of the amount of power expected to be used for the predetermined time of the plurality of customers less than the sum of the amount of power preset to be used for the predetermined time of the plurality of customers. If small,

The plurality of power supply calculators are configured such that the respective electric charges for the amount of power of the plurality of consumers subtract the amount of power preset to be used for the predetermined time from the estimated amount of power for each predetermined time. A power supply control system, characterized in that for calculating the supply power available to each customer.
Photovoltaic module for producing electrical energy using solar, ESS (Energy Storage System) for storing the electrical energy produced by the photovoltaic module, and the movement of electrical energy produced by the photovoltaic module In the method using a power supply control system using a solar energy operating system comprising a controller for controlling the movement of electrical energy stored in the ESS,

Predicting, by the power supply control system, an amount of power generation of the solar power module based on solar radiation data, and predicting an expected amount of power for a predetermined time of a customer based on past power usage data of a customer to be supplied with power; And

Determining, by the power supply control system, whether or not the estimated power to be used for a predetermined time of the customer is higher than a power that is predetermined to be used for the predetermined time of the customer;

When it is determined that the estimated power consumption for the predetermined time of the customer is higher than the power that is preset to be used for the predetermined time of the customer according to the supplying or not determining step, the power supply control system estimates the amount of generated power. And supplying power stored in the ESS to the customer through the controller based on the information of the user, the information on the estimated amount of power used during the predetermined time of the customer, and the information on the amount of power stored in the ESS. Power supply control method.
The method of claim 8,

The power supply step,

When the power generation amount is greater than or equal to the estimated power consumption for the predetermined time period minus the power amount preset to be used for the predetermined time period, the power supply control system produces the photovoltaic module. Using one power to power the customer,

The amount of power generation is less than the value of the amount of power used for the predetermined time minus the amount of power preset to be used for the predetermined time, but the sum of the amount of power generation and the amount of power stored in the ESS is expected to be used for the predetermined time. When the amount of power is greater than or equal to a value obtained by subtracting a predetermined amount of power to be used for the predetermined time, the power supply control system uses the power generated by the photovoltaic module and the power stored in the ESS. And supplying power to the customer.
The method of claim 8,

The power supply step,

The power supply control system compares the sum of the amount of power generation and the amount of power stored in the ESS with the estimated power consumption for the predetermined time minus the electric power preset to be used for the predetermined time, to the customer. And a supply power calculating step of calculating supplyable supply power according to a specific criterion, and supplying power stored in the ESS to the customer by the calculated amount of public power.
The method of claim 10,

The consumer is a consumer group consisting of a plurality of consumers,

In the predicting step, the power supply control system predicts a power generation amount of the solar power module based on solar radiation data and predicts usage of each of the plurality of customers for a predetermined time based on past power usage data of the plurality of customers. To predict the amount of power,

The power supplying step may be performed by the power supply control system for a predetermined time period, based on the information of the predicted power generation amount, the information of the estimated amount of power used for a predetermined time of each of the plurality of customers, and the information of the amount of power stored in the ESS. And supplying the power stored in the ESS to a consumer higher than an electric power preset for use for a predetermined time.
The method of claim 8,

The sum of the amount of power generated and the amount of power stored in the ESS is less than the sum of the amount of power expected to be used for the predetermined time of the plurality of customers less than the sum of the amount of power preset to be used for the predetermined time of the plurality of customers. If small,

The supply power calculation process,

The power supply control system may determine a supply power amount x that can be provided to each of the plurality of consumers, which is a value obtained by subtracting a predetermined amount of power to be used for the predetermined time from the estimated power consumption of each of the plurality of customers. Power supply control method characterized in that the process of calculating through the formula.

X = (An / Y) * (K + S)

Here, An is an amount of power predetermined to be supplied during the predetermined time for each of the plurality of customers A1, A2, A3, ..., An, and Y is the predetermined amount for each of the plurality of customers. The sum of the amounts of power preset to be used for time, K is the amount of power stored in the ESS, S is the amount of power generation.
The method of claim 8,

The sum of the amount of power generated and the amount of power stored in the ESS is less than the sum of the amount of power expected to be used for the predetermined time of the plurality of customers less than the sum of the amount of power preset to be used for the predetermined time of the plurality of customers. If small,

The supply power calculation process,

The power supply control system calculates each power rate for the amount of power by subtracting a predetermined amount of power to be used for the predetermined time from the estimated amount of power for each predetermined time for the plurality of customers, and And calculating a supply power that can be provided to each of the plurality of customers such that the sum of power rates is the minimum.
The method of claim 8,

The sum of the amount of power generated and the amount of power stored in the ESS is less than the sum of the amount of power expected to be used for the predetermined time of the plurality of customers less than the sum of the amount of power preset to be used for the predetermined time of the plurality of customers. If small,

The supply power calculation process,

The power supply control system is configured such that the respective electric power charges for the amount of power of the plurality of customers subtracted the amount of power preset to be used for the predetermined time from the estimated amount of power for each predetermined time. And a step of calculating supply power that can be provided to each of the plurality of customers.