Title:
POWER SUPPLY CIRCUIT AND UNINTERRUPTED POWER SUPPLY (UPS) SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/004284
Kind Code:
A1
Abstract:
Embodiments of the present application provide a power supply circuit, comprising a first power conversion module, a plurality of storage battery packs, a first bus, and a second bus, wherein a first wiring end of the first power conversion module is connected to the storage battery pack, a second wiring end of the first power conversion module is connected to the first bus and the second bus, and the first power conversion module is used for performing direct current to direct current (DC/DC) conversion on an output current of the corresponding storage battery pack and outputting current to the first bus and the second bus. According to the present application, the number of the storage battery packs can be set to be less than that of inverters in a UPS system, and thus costs are reduced; moreover, the first bus and the second bus are configured, so that when any one of the buses breaks down, electric energy can be provided for the inverters by means of the other bus, and thus the power supply reliability of the UPS system is improved.
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Inventors:
ZHANG CHUNTAO (CN)
Application Number:
PCT/CN2020/098059
Publication Date:
January 14, 2021
Filing Date:
June 24, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02J7/00; H02J9/06
Foreign References:
| CN105515167A | 2016-04-20 | |||
| CN105515167A | 2016-04-20 | |||
| CN109950969A | 2019-06-28 | |||
| CN110417081A | 2019-11-05 | |||
| US20110133560A1 | 2011-06-09 |
Other References:
See also references of EP 3989384A4
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
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