Energy storage system for optimum operation of demand response resource and operating method thereof
AssigneeLG Energy Solution, Ltd.
InventorDaesoo Kim
Life of this patent
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Abstract
An energy storage system is provided as a demand response resource which is associated with a virtual power plant (VPP) system. The energy storage system can include a power generation device for producing electric power, a battery for storing power, an energy management apparatus for monitoring a power generation state and a power consumption state and to establish an operation schedule for the battery, and a power converter for controlling charging/discharging operation of the battery according to the established operation schedule.
Claims18
An energy storage system configured as a demand response resource for a virtual power plant (VPP) system, the energy storage system comprising:
- a power generation device configured to produce electric power;
- a battery configured to store power;
- an energy management apparatus configured to:
- collect basic information including information on a power generation state and a power consumption state and information on grid power cost,
- establish an operation schedule for controlling charging/discharging operations of the battery using the collected basic information,
- upon receiving a demand response (DR) signal during a charge/discharge control process of the battery according to the operation schedule, adjust the operation schedule in response to the DR signal,
- upon receiving the DR signal, perform demand response by controlling the charging/discharging operation of the battery to satisfy a DR duration and DR power amount included in the DR signal, regardless of the established operation schedule, and
- re-establish the operation schedule for a remaining period after execution of the demand response;
- and
- a power converter configured to control the charging/discharging operations of the battery according to the established operation schedule.
An energy management apparatus configured as a demand response resource for a virtual power plant (VPP) system, the energy management apparatus comprising:
- a battery;
- at least one processor;
- and
- a memory configured to store at least one instruction executed by the at least one processor,
- wherein the at least one instruction includes:
- an instruction to collect basic information including information on power generation state and power consumption state and information on grid power cost;
- an instruction to establish an operation schedule for controlling charging/discharging operations of the battery using the collected basic information;
- an instruction to control the charging/discharging operations of the battery according to the established operation schedule;
- and
- an instruction to, upon receiving a demand response (DR) signal during a charge/discharge control process of the battery according to the operation schedule, adjust the operation schedule in response to the DR signal,
- wherein the instruction to adjust the operation schedule includes:
- an instruction to, upon receiving the DR signal, perform demand response by controlling the charging/discharging operations of the battery to satisfy a DR duration and DR power amount included in the DR signal, regardless of the established operation schedule;
- and
- an instruction to re-establish the operation schedule for a remaining period after execution of the demand response.
A method of operating an energy storage system configured as a demand response resource for a virtual power plant (VPP) system, the method comprising:
- collecting basic information including information on power generation state and power consumption state and information on grid power cost;
- establishing an operation schedule for controlling charging/discharging operations of a battery of the energy storage system using the collected basic information;
- controlling the charging/discharging operations of the battery according to the established operation schedule;
- and
- upon receiving a demand response (DR) signal during a charge/discharge control process of the battery according to the operation schedule, adjusting the operation schedule in response to the DR signal,
- wherein the adjusting the operation schedule includes:
- upon receiving the DR signal, performing demand response by controlling charge/discharge operation of the battery to satisfy a DR duration and DR power amount included in the DR signal, regardless of the established operation schedule;
- and
- re-establishing the operation schedule for a remaining period after execution of the demand response.
Dependencies are inferred from the claim text.