Title:
POWER CONVERSION DEVICE, CONTROL METHOD, AND POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/026590
Kind Code:
A1
Abstract:
The present application provides a power conversion device, a control method, and a power supply system. The power conversion device comprises a first group of input ends, a second group of input ends, a first direct-current conversion circuit, a second direct-current conversion circuit, a positive direct-current bus, a negative direct-current bus, a first bus capacitor, a second bus capacitor, a first output end and a second output end. The first bus capacitor and the second bus capacitor are connected in series between the positive direct-current bus and the negative direct-current bus, and the positive direct-current bus and the negative direct-current bus are respectively connected to the first output end and the second output end of the power conversion device. The first direct-current conversion circuit has an input end connected to a first input end of the first group, and output ends respectively connected to the two ends of the first bus capacitor. The second direct-current conversion circuit has an input end connected to a second input end of the second group, and output ends connected to the two ends of the second bus capacitor. A second input end of the first group is connected to the negative direct-current bus, and a first input end of the second group is connected to the positive direct-current bus. The present application can reduce the cost of power conversion devices.
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Inventors:
WANG ZHAOHUI (CN)
SHI LEI (CN)
GAO YONGBING (CN)
SHI LEI (CN)
GAO YONGBING (CN)
Application Number:
PCT/CN2022/109298
Publication Date:
February 08, 2024
Filing Date:
July 30, 2022
Export Citation:
Assignee:
HUAWEI DIGITAL POWER TECH CO LTD (CN)
International Classes:
H02M3/155; H02J3/38; H02M7/537
Foreign References:
| CN103872939A | 2014-06-18 | |||
| CN111869086A | 2020-10-30 | |||
| CN103078337A | 2013-05-01 | |||
| DE102006023563A1 | 2007-11-22 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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