WO2025211925A1 - 에너지 저장 시스템의 운영 지원 장치 및 방법 - Google Patents
에너지 저장 시스템의 운영 지원 장치 및 방법Info
- Publication number
- WO2025211925A1 WO2025211925A1 PCT/KR2025/099273 KR2025099273W WO2025211925A1 WO 2025211925 A1 WO2025211925 A1 WO 2025211925A1 KR 2025099273 W KR2025099273 W KR 2025099273W WO 2025211925 A1 WO2025211925 A1 WO 2025211925A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- energy storage
- storage system
- battery
- charge
- combinations
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/28—Arrangements for balancing of the load in networks by storage of energy
- H02J3/32—Arrangements for balancing of the load in networks by storage of energy using batteries or super capacitors with converting means
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/008—Circuit arrangements for power supply or distribution technologies responsive to energy trading
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/28—Arrangements for balancing of the load in networks by storage of energy
- H02J3/32—Arrangements for balancing of the load in networks by storage of energy using batteries or super capacitors with converting means
- H02J3/322—Arrangements for balancing of the load in networks by storage of energy using batteries or super capacitors with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/80—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including monitoring or indicating arrangements
- H02J7/82—Control of state of charge [SOC]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/90—Regulation of charging or discharging current or voltage
- H02J7/92—Regulation of charging or discharging current or voltage with prioritisation of loads or sources
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/14—Energy storage units
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S50/00—Market activities related to the operation of systems integrating technologies related to power network operation or related to communication or information technologies
- Y04S50/10—Energy trading, including energy flowing from end-user application to grid
Definitions
- the present invention relates to an operation support device and method for an energy storage system, and more particularly, to an operation support device and method for an energy storage system that helps minimize the operation cost of an energy storage system.
- PV-linked ESS is configured to appropriately distribute power supplied from the power grid and power generated by PV systems to supply loads, storing any remaining power in a battery system.
- the at least one command may include: a command for collecting information about batteries applicable to the energy storage system; a command for deriving a plurality of combinations, each of which comprises one or more batteries applicable to the energy storage system, based on a structure of the energy storage system; a command for calculating an operating cost of the energy storage system for each of the combinations; and a command for generating recommended combination information including information about a combination exhibiting the lowest operating cost among the combinations.
- the command for collecting information about the batteries may include a command for collecting, for each of the one or more batteries, one or more of a model name, a capacity, a critical SOC range, and a purchase cost.
- the command for calculating the operating cost of the energy storage system may include a command for calculating a grid power purchase cost and a battery purchase cost for each of the combinations; and a command for calculating the operating cost based on the grid power purchase cost and the battery purchase cost.
- the command for calculating the above system power purchase cost may include a command for deriving an operation schedule including a time interval charge/discharge amount that minimizes the system power purchase cost by using an objective function defined as the system power purchase cost; and a command for calculating the system power purchase cost for a preset period for each of the combinations by applying the operation schedule and system power cost information to an energy storage system according to each of the above combinations.
- the above objective function may be defined as a constraint including at least one of a first condition regarding the balance of power supply and power consumption, a second condition regarding the state of charge (SOC) according to the charge/discharge efficiency of the ESS battery, a third condition regarding the limit charge amount of the ESS battery, a fourth condition regarding the limit output of the inverter, a fifth condition regarding the binarization of the charge/discharge state of the ESS battery, a sixth condition regarding the state of charge (SOC) according to the charge/discharge efficiency of the EV battery, a seventh condition regarding the limit charge amount of the EV battery, an eighth condition regarding the limit output of a bidirectional EV charger, and a ninth condition regarding the binarization of the charge/discharge state of the bidirectional EV charger.
- the at least one command may further include a command for providing the generated recommended combination information to a user terminal linked to the energy storage system.
- the above recommended combination information may include at least one of the model name, capacity, number, and connection structure of the batteries applied to the energy storage system.
- an operation support method may include a step of collecting information on a battery applicable to the energy storage system; a step of deriving a plurality of combinations composed of one or more batteries applicable to the energy storage system based on a structure of the energy storage system; a step of calculating an operation cost of the energy storage system for each of the combinations; and a step of generating recommended combination information including information on a combination exhibiting the minimum operation cost among the combinations.
- the step of collecting information about the batteries may include collecting, for each of the one or more batteries, one or more of a model name, a capacity, a critical SOC range, and a purchase cost.
- the step of calculating the operating cost of the energy storage system may include the step of calculating the system power purchase cost and the battery purchase cost for each of the combinations; and the step of calculating the operating cost based on the system power purchase cost and the battery purchase cost.
- the step of calculating the operating cost of the energy storage system may include a step of calculating a system power purchase cost for a preset period for each of the combinations based on past history information for at least one of the energy storage system, a load linked to the energy storage system, and a power generation device linked to the energy storage system, and charge/discharge schedule information of a two-way electric vehicle (EV) charger linked to the energy storage system.
- a step of calculating a system power purchase cost for a preset period for each of the combinations based on past history information for at least one of the energy storage system, a load linked to the energy storage system, and a power generation device linked to the energy storage system, and charge/discharge schedule information of a two-way electric vehicle (EV) charger linked to the energy storage system.
- EV electric vehicle
- the step of calculating the system power purchase cost may include a step of deriving an operation schedule including a time interval charge/discharge amount that minimizes the system power purchase cost by using an objective function defined as the system power purchase cost; and a step of calculating the system power purchase cost for a preset period for each of the combinations by applying the operation schedule and system power cost information to an energy storage system according to each of the combinations.
- the above objective function may be defined as a constraint including at least one of a first condition regarding the balance of power supply and power consumption, a second condition regarding the state of charge (SOC) according to the charge/discharge efficiency of the ESS battery, a third condition regarding the limit charge amount of the ESS battery, a fourth condition regarding the limit output of the inverter, a fifth condition regarding the binarization of the charge/discharge state of the ESS battery, a sixth condition regarding the state of charge (SOC) according to the charge/discharge efficiency of the EV battery, a seventh condition regarding the limit charge amount of the EV battery, an eighth condition regarding the limit output of a bidirectional EV charger, and a ninth condition regarding the binarization of the charge/discharge state of the bidirectional EV charger.
- the above operation support method may further include a step of providing the generated recommended combination information to a user terminal linked with the energy storage system.
- the above recommended combination information may include at least one of the model name, capacity, number, and connection structure of the batteries applied to the energy storage system.
- Figure 2 shows an implementation example of an energy storage system to which the present invention can be applied.
- FIG. 5 is a reference table for explaining a method for deriving battery combinations according to an embodiment of the present invention.
- Figure 6 is a reference table for explaining a method for deriving an optimal combination according to an embodiment of the present invention.
- FIG. 7 is an example screen of a user terminal for explaining charge/discharge schedule information of an EV charger according to an embodiment of the present invention.
- Figure 8 is a block diagram of an operation support device of an energy storage system according to an embodiment of the present invention.
- first means “first,” “second,” “A,” and “B” may be used to describe various components, but these components should not be limited by these terms. These terms are used solely to distinguish one component from another.
- first component could be referred to as the "second component”
- second component could also be referred to as the "first component.”
- and/or includes any combination of multiple related items listed or any one of multiple related items listed.
- SOC State of Charge
- SOH State of Health
- Power Limit refers to the output power limit, which is preset by the battery manufacturer based on battery condition or set based on the SOC. Power limits can be categorized into charge power limits and discharge power limits, depending on whether the battery is being charged or discharged.
- the energy storage system (100) is electrically connected to a load (200), an EV (Electric Vehicle) charger (300), a power generation device (400), and a power system, and can receive power from the power system and the power generation device (400) and store it internally.
- a load 200
- an EV (Electric Vehicle) charger 300
- a power generation device 400
- the energy storage system (100) is electrically connected to a load (200) and can supply power stored therein to the load (200). Meanwhile, the load (200) is electrically connected to a bidirectional EV charger (300), a power generation device (400), and a power system, and can receive power from the bidirectional EV charger (300), the power generation device (400), and the power system.
- the EV charger (300) is electrically connected to a power system, a power generation device (400), and an energy storage system (100), and can receive power from the power system, the power generation device (400), and the energy storage system (100).
- the EV charger (300) may correspond to a bidirectional EV charger.
- the EV charger (300) may charge a battery (hereinafter, "EV battery") included in the EV using externally supplied power, and discharge power stored in the EV battery to the outside.
- EV battery a battery included in the EV using externally supplied power
- the bidirectional EV charger and EV battery may function in the same manner as the energy storage system (100) according to the present invention.
- the EV charger (300) When the EV charger (300) is configured as a bidirectional charger, the EV charger (300) can supply power stored therein to the load (200) and the energy storage system (100).
- the power generation device (400) is a device that generates power using a power generation device, and may be configured to include at least one of a solar power generation device, a solar thermal power generation device, a wind power generation device, and a geothermal power generation device. Meanwhile, since the type of the power generation device (400) is not an essential component of the present invention, the scope of the present invention is not limited to these entities.
- the operation support device (500) may be configured to be connected to the energy storage system (100) via a network and to mutually transmit and receive data.
- the operation support device (500) may be configured to be connected to one or more of the power generation device (400) and the user terminal (600) via a network and to mutually transmit and receive data.
- the operation support device can derive a total of 12 battery combinations (C #1 to #12), as shown in Fig. 5(A).
- the operation support device can calculate a grid power purchase cost for a preset period for each of the battery combinations derived at S320 based on past history information for one or more of the energy storage system, the load, and the power generation device, and the charge/discharge schedule information of the bidirectional EV charger.
- the operation support device can receive past history information for a certain period of time from one or more of a user terminal, an EMS, an inverter of an ESS, and a PV inverter.
- the past history information can include one or more of power consumption status information of a load (e.g., power consumption per hour), power production status information of a power generation device (e.g., power production per hour), and charge/discharge schedule information of an ESS battery (e.g., charge/discharge per hour).
- the operation support device can conduct simulations using historical information and EV charging/discharging schedules for energy storage systems equipped with batteries according to each combination (C #1 to #9). Then, based on the hourly grid power usage and hourly grid power cost information derived from the simulation results, the operation support device can calculate the grid power purchase cost for each combination over a preset period (e.g., one month).
- the operation support device can derive an operation schedule (charge/discharge amount per unit time) of a battery that minimizes the purchase cost of grid power based on past history information about loads and power generation devices and EV charge/discharge schedule information, and calculate the cost of grid power purchase using the derived operation schedule.
- an operation schedule charge/discharge amount per unit time
- the operation support device can collect information on power generation status and power consumption status over a certain period of time (e.g., over the past year), and receive EV charging/discharging schedule information from the user terminal. Thereafter, the operation support device can derive an operation schedule for a certain period of time (e.g., one day) that minimizes the purchase cost of system power, using an objective function defined as the purchase cost of system power.
- a certain period of time e.g., one day
- the operation control unit can derive an operation schedule using an objective function defined based on Mixed-integer Linear Programming (MILP).
- MILP Mixed-integer Linear Programming
- Pgrid(t) is the grid power schedule and ⁇ grit(t) is the grid power cost.
- Mathematical expression 1 is an objective function for deriving the amount of charge or discharge of a battery for each time interval that can minimize the cost of purchasing power from the system.
- the objective function according to Mathematical expression 1 may define constraints including at least one of a first condition regarding the balance of power supply and power consumption, a second condition regarding the state of charge (SOC) according to the charge and discharge efficiency of the ESS battery, a third condition regarding the limit charge amount of the ESS battery, a fourth condition regarding the limit output of the inverter, a fifth condition regarding the binarization of the charge and discharge state of the ESS battery, a sixth condition regarding the state of charge (SOC) according to the charge and discharge efficiency of the EV battery, a seventh condition regarding the limit charge amount of the EV battery, an eighth condition regarding the limit output of a bidirectional EV charger, and a ninth condition regarding the binarization of the charge and discharge state of the bidirectional EV charger.
- ⁇ dch is the battery state for discharging, which has a value of 0 or 1)
- SOCEV(t) is the SOC of the EV battery
- Ecap_EV is the capacity of the EV battery
- ⁇ ch_EV is the charging efficiency of the bidirectional EV charger
- ⁇ dch_EV is the discharging efficiency of the bidirectional EV charger
- tstep is the time interval.
- ⁇ EV is the EV connection status value with a value of 0 or 1
- ⁇ EVch is the charge status value with a value of 0 or 1
- PEV_max is the maximum output of the bidirectional EV charger.
- ⁇ EVdch is a discharge state value with a value of 0 or 1)
- the first condition can be implemented using Equation 2, and the decision variables Pgrid(t), Pbatch(t), and Pbatdch(t) function to determine the balance between power supply and demand. Meanwhile, in Equation 2, Ppv(t) and Pload(t) can be applied to the power production and power consumption per unit of time based on past history information.
- the third condition can be implemented by mathematical expression 4, and functions to determine the SOC of the ESS battery within a set critical range.
- the sixth condition can be implemented by mathematical expression 8, and functions such that the SOC of the EV battery in the next time interval is determined based on the capacity of the EV battery and the charge/discharge efficiency of the two-way EV charger.
- the seventh condition can be implemented using mathematical expression 9 and functions to determine the SOC of an EV battery within a set threshold range.
- at least one of the lower and upper SOC limits of the EV battery can be set by the user.
- the lower SOC limit of the EV battery can be defined as the minimum guaranteed SOC of the EV battery received from the user terminal.
- the EV battery can perform charge and discharge operations at a state above the minimum guaranteed SOC.
- the eighth and ninth conditions can be implemented by mathematical expressions 10 to 12, and function to prevent Pbatch(t) and Pbatdch(t) from exceeding the output limit of the bidirectional EV charger, and to prevent the charging power amount and the discharging power amount from being determined simultaneously.
- the EV connection status value ⁇ EV reflected in mathematical expressions 10 and 11 can be defined as [1] in the case of a connection status and [0] in the case of a non-connection status.
- the EV connection status value can be defined based on EV charging/discharging schedule information received from the user terminal.
- the operation control device can derive Pbatch(t) and Pbatdch(t) that satisfy the above objective function and constraints and generate an operation schedule including the same.
- the operation support device can conduct simulations using historical power consumption and power production information and generated operation schedules for energy storage systems equipped with batteries according to each combination (C #1 to #9). Thereafter, based on the hourly system power usage and hourly system power cost information derived from the simulation results, the operation support device can calculate the system power purchase cost for each combination for a preset period (e.g., one month).
- the operation support device can generate recommended combination information including information on the optimal combination (S350).
- the recommended combination information may include at least one of the following: the model name, capacity, number, and connection structure of the batteries applied to the energy storage system.
- the recommended combination information may be implemented as [Bat 9158, 4kWh, 3, serial connection].
- the operation support device can provide the recommended combination information generated in S350 to the user terminal (S360).
- the user terminal can output the received recommended combination information through a predefined GUI.
- the operation support device may provide an optimal operation schedule corresponding to an optimal combination to a user terminal, an EMS, or an inverter.
- the optimal operation schedule may correspond to an operation schedule derived according to an objective function and constraints when calculating the system power purchase cost for the optimal combination.
- the operation support device may provide the optimal operation schedule corresponding to the recommended combination to the user terminal as a reference operation schedule so that, when the energy storage system is operated with the optimal battery combination in the future, the system power purchase cost is minimized.
- the operation support device can reflect the minimum guaranteed SOC received from the user terminal in the seventh condition (Mathematical Formula 9) among the constraints for deriving the operation schedule.
- the operation support device can reflect the EV schedule information received from the user terminal in the eighth and ninth conditions (Mathematical Formulas 10 and 11) among the constraints for deriving the operation schedule.
- the operation support device (500) may be incorporated into an energy storage system or provided separately outside the energy storage system.
- the operation support device (500) may be implemented by being incorporated into a Home Energy Management System (HEMS), which is the top-level control system of a residential ESS, or may be implemented by being incorporated into a server of an ESS management company.
- HEMS Home Energy Management System
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Abstract
Description
Claims (18)
- 에너지 저장 시스템(ESS; Energy Storage System)의 운영 지원 장치로서,적어도 하나의 프로세서; 및상기 적어도 하나의 프로세서를 통해 실행되는 적어도 하나의 명령을 저장하는 메모리를 포함하고,상기 적어도 하나의 명령은,상기 에너지 저장 시스템에 적용될 수 있는 배터리에 대한 정보를 수집하는 명령;상기 에너지 저장 시스템의 구조를 기초로, 상기 에너지 저장 시스템에 적용될 수 있는 하나 이상의 배터리로 구성된, 복수의 조합들을 도출하는 명령;상기 조합들 각각에 대한, 에너지 저장 시스템의 운영 비용을 산출하는 명령; 및상기 조합들 중 최소 운영 비용을 나타내는 조합에 관한 정보를 포함하는 추천 조합 정보를 생성하는 명령을 포함하는, 운영 지원 장치.
- 청구항 1에 있어서,상기 배터리에 대한 정보를 수집하는 명령은,하나 이상의 배터리 각각에 대한, 모델명, 용량, 임계 SOC 범위 및 구매 비용 중 하나 이상을 수집하는 명령을 포함하는, 운영 지원 장치.
- 청구항 1에 있어서,상기 복수의 조합들을 도출하는 명령은,배터리별 용량, 및 상기 배터리 시스템의 설계 구조를 기초로, 상기 에너지 저장 시스템에 적용 가능한 복수의 조합들을 도출하는 명령을 포함하는, 운영 지원 장치.
- 청구항 1에 있어서,상기 에너지 저장 시스템의 운영 비용을 산출하는 명령은,상기 조합들 각각에 대한, 계통 전력 구매 비용과 배터리 구매 비용을 산출하는 명령; 및상기 계통 전력 구매 비용과 배터리 구매 비용을 기초로 상기 운영 비용을 산출하는 명령을 포함하는, 운영 지원 장치.
- 청구항 4에 있어서,상기 에너지 저장 시스템의 운영 비용을 산출하는 명령은,상기 에너지 저장 시스템, 상기 에너지 저장 시스템과 연동하는 부하, 및 상기 에너지 저장 시스템과 연동하는 전력 생산 장치 중 하나 이상에 대한 과거 이력 정보와, 상기 에너지 저장 시스템과 연동하는 양방향 전기차(EV; Electric Vehicle) 충전기의 충방전 스케줄 정보를 기초로, 상기 조합들 각각에 대한 기설정된 기간 동안의 계통 전력 구매 비용을 산출하는 명령을 포함하는, 운영 지원 장치.
- 청구항 5에 있어서,상기 계통 전력 구매 비용을 산출하는 명령은,계통 전력의 구매 비용으로 정의되는 목적 함수를 이용하여, 계통 전력의 구매 비용을 최소로 하는, 시간 구간별 충방전량을 포함한 운영 스케줄을 도출하는 명령; 및상기 조합들 각각에 따른 에너지 저장 시스템에, 상기 운영 스케줄 및 계통 전력 비용 정보를 적용하여, 상기 조합들 각각에 대한 기설정된 기간 동안의 계통 전력 구매 비용을 산출하는 명령을 포함하는, 운영 지원 장치.
- 청구항 6에 있어서,상기 목적 함수는,전력 공급 및 전력 소비의 균형에 관한 제1조건, ESS 배터리의 충방전 효율에 따른 충전 상태(SOC)에 관한 제2조건, ESS배터리의 한계 충전량에 관한 제3조건, 인버터의 한계 출력에 관한 제4조건, ESS 배터리의 충방전 상태의 이진화에 관한 제5조건, EV 배터리의 충방전 효율에 따른 충전 상태(SOC)에 관한 제6조건, EV 배터리의 한계 충전량에 관한 제7조건, 양방향 EV 충전기의 한계 출력에 관한 제8조건, 및 양방향 EV 충전기의 충방전 상태의 이진화에 관한 제9조건 중 적어도 하나를 포함하는 제약 조건이 정의되는, 운영 지원 장치.
- 청구항 1에 있어서,상기 적어도 하나의 명령은,상기 생성된 추천 조합 정보를, 상기 에너지 저장 시스템과 연동하는 사용자 단말에 제공하는 명령을 더 포함하는, 운영 지원 장치.
- 청구항 8에 있어서,상기 추천 조합 정보는,상기 에너지 저장 시스템에 적용되는 배터리의 모델명, 용량, 개수, 및 배터리들의 연결 구조 중 적어도 하나 이상을 포함하는, 운영 지원 장치.
- 에너지 저장 시스템의 운영 지원 방법으로서,상기 에너지 저장 시스템에 적용될 수 있는 배터리에 대한 정보를 수집하는 단계;상기 에너지 저장 시스템의 구조를 기초로, 상기 에너지 저장 시스템에 적용될 수 있는 하나 이상의 배터리로 구성된, 복수의 조합들을 도출하는 단계;상기 조합들 각각에 대한, 에너지 저장 시스템의 운영 비용을 산출하는 단계; 및상기 조합들 중 최소 운영 비용을 나타내는 조합에 관한 정보를 포함하는 추천 조합 정보를 생성하는 단계를 포함하는, 운영 지원 방법.
- 청구항 10에 있어서,상기 배터리에 대한 정보를 수집하는 단계는,하나 이상의 배터리 각각에 대한, 모델명, 용량, 임계 SOC 범위 및 구매 비용 중 하나 이상을 수집하는 단계를 포함하는, 운영 지원 방법.
- 청구항 10에 있어서,상기 복수의 조합들을 도출하는 단계는,배터리별 용량, 및 상기 배터리 시스템의 설계 구조를 기초로, 상기 에너지 저장 시스템에 적용 가능한 복수의 조합들을 도출하는 단계를 포함하는, 운영 지원 방법.
- 청구항 10에 있어서,상기 에너지 저장 시스템의 운영 비용을 산출하는 단계는,상기 조합들 각각에 대한, 계통 전력 구매 비용과 배터리 구매 비용을 산출하는 단계; 및상기 계통 전력 구매 비용과 배터리 구매 비용을 기초로 상기 운영 비용을 산출하는 단계를 포함하는, 운영 지원 방법.
- 청구항 13에 있어서,상기 에너지 저장 시스템의 운영 비용을 산출하는 단계는,상기 에너지 저장 시스템, 상기 에너지 저장 시스템과 연동하는 부하, 및 상기 에너지 저장 시스템과 연동하는 전력 생산 장치 중 하나 이상에 대한 과거 이력 정보와, 상기 에너지 저장 시스템과 연동하는 양방향 전기차(EV; Electric Vehicle) 충전기의 충방전 스케줄 정보를 기초로, 상기 조합들 각각에 대한 기설정된 기간 동안의 계통 전력 구매 비용을 산출하는 단계를 포함하는, 운영 지원 방법.
- 청구항 14에 있어서,상기 계통 전력 구매 비용을 산출하는 단계는,계통 전력의 구매 비용으로 정의되는 목적 함수를 이용하여, 계통 전력의 구매 비용을 최소로 하는, 시간 구간별 충방전량을 포함한 운영 스케줄을 도출하는 단계; 및상기 조합들 각각에 따른 에너지 저장 시스템에, 상기 운영 스케줄 및 계통 전력 비용 정보를 적용하여, 상기 조합들 각각에 대한 기설정된 기간 동안의 계통 전력 구매 비용을 산출하는 단계를 포함하는, 운영 지원 방법.
- 청구항 15에 있어서,상기 목적 함수는,전력 공급 및 전력 소비의 균형에 관한 제1조건, ESS 배터리의 충방전 효율에 따른 충전 상태(SOC)에 관한 제2조건, ESS배터리의 한계 충전량에 관한 제3조건, 인버터의 한계 출력에 관한 제4조건, ESS 배터리의 충방전 상태의 이진화에 관한 제5조건, EV 배터리의 충방전 효율에 따른 충전 상태(SOC)에 관한 제6조건, EV 배터리의 한계 충전량에 관한 제7조건, 양방향 EV 충전기의 한계 출력에 관한 제8조건, 및 양방향 EV 충전기의 충방전 상태의 이진화에 관한 제9조건 중 적어도 하나를 포함하는 제약 조건이 정의되는, 운영 지원 방법.
- 청구항 10에 있어서,상기 생성된 추천 조합 정보를, 상기 에너지 저장 시스템과 연동하는 사용자 단말에 제공하는 단계를 더 포함하는, 운영 지원 방법.
- 청구항 17에 있어서,상기 추천 조합 정보는,상기 에너지 저장 시스템에 적용되는 배터리의 모델명, 용량, 개수, 및 배터리들의 연결 구조 중 적어도 하나 이상을 포함하는, 운영 지원 방법.
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