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Patent Searching and Data


Title:
FAULT HANDLING METHOD AND DEVICE FOR POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/033990
Kind Code:
A1
Abstract:
Disclosed in embodiments of the present invention are a fault handling method and device for a power supply device. The method is applicable to an inverter power supply system in the power supply device. The inverter power supply system comprises at least one DC/DC module, and any DC/DC module comprises fuses F1 and F2, relays K1 and K2, inductors L1 and L2, switch modules Q1, Q2 and Q3, and direct-current bus capacitors C1 and C2. The fault handling method comprises: if a fault is detected on any DC/DC module, detecting an assembly having a fault in the faulty module; and if the faulty assembly is C1 or C2 and when the inverter power supply system is in a battery discharging mode, conducting Q2 in the faulty module, so that F1 and F2 in the faulty module are fused to disconnect the faulty module with another DC/DC module. By using the embodiments of the present invention, the circuit stability of the DC/DC module can be improved, and the power supply reliability of the inverter power supply system is improved.

Inventors:
JIANG, Zhengdong (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
XIAO, Bo (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
Application Number:
CN2018/099697
Publication Date:
February 21, 2019
Filing Date:
August 09, 2018
Export Citation:
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Assignee:
HUAWEI TECHNOLOGIES CO., LTD. (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
International Classes:
H02J7/34; H02J9/06
Domestic Patent References:
WO2016157469A12016-10-06
Foreign References:
CN107359688A2017-11-17
CN103344870A2013-10-09
CN201045748Y2008-04-09
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (Room 1508, Huihua Commercial & Trade BuildingNo. 80, XianLie Zhong Road,Yuexiu Distric, Guangzhou Guangdong 0, 510070, CN)
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