Title:
BATTERY MODULE, AND ENERGY STORAGE SYSTEM AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/029606
Kind Code:
A1
Abstract:
The present application provides a battery module, and an energy storage system and a control method therefor. When a corresponding preset condition is satisfied, battery modules can be switched in or out of a system by means of the on-off of a main loop on-off control circuit and a bypass on-off control circuit, so that the battery modules currently connected into the system can be adjusted in real time, and thus the battery modules in the system can satisfy the corresponding preset condition one by one, namely achieving the same state (for example, achieving SOC equalization), without causing energy waste. Moreover, a main loop buffer circuit or a bypass buffer circuit is provided in the battery module, so that energy impact generated when the battery module is switched in or cut out of the system can be absorbed, and thus a corresponding device is prevented from bearing large voltage/current stress.
Inventors:
SUN WEI (CN)
LI PENGJU (CN)
CHEN FEI (CN)
CHEN XIAOGUANG (CN)
LI PENGJU (CN)
CHEN FEI (CN)
CHEN XIAOGUANG (CN)
Application Number:
PCT/CN2022/094854
Publication Date:
March 09, 2023
Filing Date:
May 25, 2022
Export Citation:
Assignee:
SUNGROW ENERGY STORAGE TECH CO LTD (CN)
International Classes:
H02J7/00
Foreign References:
| CN113629820A | 2021-11-09 | |||
| CN113629821A | 2021-11-09 | |||
| CN110350625A | 2019-10-18 | |||
| CN109861356A | 2019-06-07 | |||
| CN112865261A | 2021-05-28 | |||
| JP2004336938A | 2004-11-25 | |||
| CN202111026273A | 2021-09-02 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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