Title:
ENERGY STORAGE SYSTEM AND POWER SUPPLY CONTROL METHOD FOR BATTERY MANAGEMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/041383
Kind Code:
A1
Abstract:
The present application provides an energy storage system and a power supply control method for a battery management system. The energy storage system comprises a direct-current bus, an energy storage module, an alternating-current mains electricity module, an energy storage converter module, a power conversion module and a battery management system. The battery management system comprises a container monitoring unit. The power conversion module is used for converting an alternating-current voltage outputted by the alternating-current mains electricity module or an alternating-current voltage outputted by the energy storage converter module into a first direct-current voltage, taking a direct-current voltage outputted by the energy storage module, a bus voltage outputted by the direct-current bus and the maximum voltage in the first direct-current voltage as a second direct-current voltage, converting the second direct-current voltage into a third direct-current voltage and a fourth direct-current voltage, and respectively supplying power to the container monitoring unit on the basis of the third direct-current voltage and the fourth direct-current voltage. By means of embodiments of the present application, multiple power supply equipment supply power to the container monitoring unit in the battery management system by means of two power supply circuits, such that the charging efficiency is improved, and the stability of the energy storage system can be improved.
Inventors:
ZHANG CHUNLEI (CN)
YU SHIJIANG (CN)
WU JIAJING (CN)
YU SHIJIANG (CN)
WU JIAJING (CN)
Application Number:
PCT/CN2023/111936
Publication Date:
February 29, 2024
Filing Date:
August 09, 2023
Export Citation:
Assignee:
HUAWEI DIGITAL POWER TECH CO LTD (CN)
International Classes:
H02J7/00
Foreign References:
| CN115411809A | 2022-11-29 | |||
| CN114424419A | 2022-04-29 | |||
| CN112186829A | 2021-01-05 | |||
| CN112234636A | 2021-01-15 | |||
| JP2010148213A | 2010-07-01 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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