ENERGY STORAGE SYSTEM AND MANAGEMENT METHOD

WIPO Patent Application WO/2023/040642

A1

The present application provides an energy storage system and a management method. The energy storage system comprises an energy storage converter, a battery manager, and a battery pack. The battery pack comprises at least two groups of battery clusters. The energy storage converter is used for executing a charging and discharging current transmitted by the battery manager. The battery manager is used for acquiring the present current of each group of battery clusters, determining, according to the preset current of each group of battery clusters and a corresponding limiting current of each group of battery clusters, an allowable charging and discharging current of the battery pack, and transmitting to the energy storage converter the acquired allowable charging and discharging current of the battery pack in a next cycle, so that the current flowing through each group of battery clusters in the next cycle is less than the corresponding limiting current. The allowable charging and discharging current of the battery pack is acquired by repeated iteration until the current flowing through each group of battery clusters in the next cycle is less than the corresponding limiting current, so that overcurrent will not occur, thereby ensuring the safety of the energy storage system.

YANG YANG (CN)
GAO WENKAI (CN)
JIANG FAYANG (CN)
XU ZHONGHUA (CN)

PCT/CN2022/115497

March 23, 2023

August 29, 2022

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ENVISION ENERGY CO LTD (CN)

H02J3/32; H02J7/00

CN113794217A	2021-12-14
CN111446752A	2020-07-24
JP2010041883A	2010-02-18
CN101888098A	2010-11-17
CN204538792U	2015-08-05

SHANGHAI ZHISHENG INTELLECTUAL PROPERTY OFFICE (CN)

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