Title:
POWER SUPPLY SYSTEM AND CONVERSION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/097478
Kind Code:
A1
Abstract:
The present application provides a power supply system and a conversion method. The power supply system comprises a power generation device, a converter circuit, and a driving control circuit. The converter circuit is configured to output a first reactive current to a power grid when a voltage value of an output end of the converter circuit is reduced from a first working voltage value to a second working voltage value and the second working voltage value is smaller than or equal to a first triggering voltage value. The driving control circuit is configured to control, when it is detected, during the process that the converter circuit outputs the first reactive current to the power grid, that the voltage value of the output end of the converter circuit rises to a third working voltage value, and the third working voltage value is greater than or equal to a first recovery voltage value, the converter circuit to output a second reactive current to the power grid so as to recover the voltage value of the output end of the converter circuit to the first working voltage value. The present application can make a converter stably output a reactive current during a power grid failure, reduces circuit oscillations, and is simple in structure, simple and convenient in control method and high in safety.
Inventors:
SHAO ZHANGPING (CN)
XIN KAI (CN)
ZHOU YOU (CN)
XIN KAI (CN)
ZHOU YOU (CN)
Application Number:
PCT/CN2021/134507
Publication Date:
June 08, 2023
Filing Date:
November 30, 2021
Export Citation:
Assignee:
HUAWEI DIGITAL POWER TECH CO LTD (CN)
International Classes:
H02J3/38; H02J3/16
Foreign References:
| CN104396113A | 2015-03-04 | |||
| CN105591401A | 2016-05-18 | |||
| CN104362667A | 2015-02-18 | |||
| CN108879760A | 2018-11-23 | |||
| US20120262129A1 | 2012-10-18 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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