US 2019/0058340 A1 · ENERGY STORAGE SYSTEM WITH IMPROVED OPERATING TIME AND OPERATION METHOD THEREOF

Abstract

Provided are a system and a method which allow an improved operating time of an energy storage system in a power system by reflecting a state of charge of a battery and a state of the power system on a control of an amount of charging power or discharging power of the energy storage system. The system includes: a battery configured to charge or discharge power; a battery monitor configured to monitor a state of the battery; a power system monitor configured to monitor a state of a power system; and a charge/discharge controller configured to control an amount of charging power or an amount of discharging power of the battery using a state of charge of the battery detected by the battery monitor and the state of the power system detected by the power system monitor.

Claims15

Dependent claims

An energy storage system for charging or discharging power generated by a power plant, the energy storage system comprising:

a battery configured to charge or discharge power;
a battery monitor configured to monitor a state of the battery;
a power system monitor configured to monitor a state of a power system;
and
a charge/discharge controller configured to control an amount of charging power or an amount of discharging power of the battery using a state of charge of the battery detected by the battery monitor and the state of the power system detected by the power system monitor.

2 more elements

A method of operating an energy storage system which charges or discharges power generated by a power plant, the method comprising:

calculating, by an energy storage system, a required amount (PW−PL) of power to be charged and an amount (PC_max) of chargeable power of a battery or calculating a required amount (PL−PW) of power to be discharged and an amount (PD_max) of dischargeable power of the battery;
comparing the required amount of power to be charged and the amount of chargeable power of the battery and setting a smaller value therebetween as a reference charging power, and comparing the required amount of power to be discharged and the amount of dischargeable power of the battery and setting a smaller value therebetween as a reference discharging power;
and
controlling an amount of charging power or discharging power of the battery according to a state of charge of the battery.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/880,494Filed 25 Jan 2018

Priority

KR 10-2017-010424517 Aug 2017

Published

21 Feb 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

H02J 3/32
Arrangements for balancing of the load in networks by storage of energy: using batteries or super capacitors with converting means
G01R 11/00
Electromechanical arrangements for measuring time integral of electric power or current
G01R 31/382
Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of…
H02J 7/00
Circuit arrangements for charging or discharging batteries or for supplying loads from

Energy storage system with improved operating time and operation method thereof

Life of this patent

Energy storage system with improved operating time and operation method thereof

Life of this patent

Abstract

Claims15