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1. (WO2018106014) METHOD FOR OPERATING ESS AT OPTIMAL EFFICIENCY

Pub. No.:    WO/2018/106014    International Application No.:    PCT/KR2017/014229
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Thu Dec 07 00:59:59 CET 2017
IPC: H02J 3/32
Applicants: HYOSUNG HEAVY INDUSTRIES CORPORATION
효성중공업 주식회사
Inventors: PARK, Sang Hui
박상희
AN, Geon Ho
안건호
Title: METHOD FOR OPERATING ESS AT OPTIMAL EFFICIENCY
Abstract:
A method for operating an ESS at optimal efficiency according to the present invention may comprise the steps of: collecting charge/discharge efficiency data of a PCS; collecting charge/discharge efficiency data according to the current charge level of a battery; generating charge/discharge efficiency data of a unit BESS comprising the PCS and the battery, using the collected data; determining optimal charge/discharge levels of at least two unit BESSs included in the ESS, using the charge/discharge efficiency data of the at least two unit BESSs, so as to satisfy the currently-commanded input/output power value of the entire ESS; and charging or discharging the at least two unit BESSs according to the determined optimal charge/discharge levels.