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Patent Searching and Data


Title:
MECHANICAL HIGH-VOLTAGE DIRECT-CURRENT CIRCUIT BREAKER DEVICE AND BREAKING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/227995
Kind Code:
A1
Abstract:
The present invention relates to the technical field of topological design of key equipment in a direct-current system, and particularly relates to a mechanical high-voltage direct-current circuit breaker device and a breaking method thereof. The device comprises: a main branch circuit, used for bearing a normal working current of a direct-current line and overvoltages at two ends of a direct-current circuit breaker when a fault current is broken, and implementing bidirectional conduction of the current on the direct-current line; a transfer branch circuit, used for generating an oscillating current opposite to the current of the main branch circuit in direction, and superimposing the opposite oscillating current onto the main branch circuit to enable the fault current on the main branch circuit to forcedly cross zero, so as to implement transfer of the fault current from the main branch circuit to the transfer branch circuit; an absorption branch circuit, used for absorbing and discharging energy accumulated when fault breaking; and a residual current breaking component, connected in series to the main branch circuit and used for breaking a residual current.

Inventors:
SIMA WENXIA (CN)
FU ZHENGZHENG (CN)
YANG MING (CN)
YUAN TAO (CN)
SUN POTAO (CN)
DUAN PAN (CN)
HAN XUE (CN)
SI YAN (CN)
Application Number:
PCT/CN2019/076818
Publication Date:
December 05, 2019
Filing Date:
March 04, 2019
Export Citation:
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Assignee:
UNIV CHONGQING (CN)
International Classes:
H02H7/26; H02J3/36
Foreign References:
CN108649544A2018-10-12
CN107769179A2018-03-06
CN103779828A2014-05-07
CN103337851A2013-10-02
US20160322177A12016-11-03
Attorney, Agent or Firm:
BEIJING HUIZE INTELLECTUAL PROPERTY LAW LLC (CN)
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