Title:
AUXILIARY CONVERTER HAVING MULTI-PROTECTION
Document Type and Number:
WIPO Patent Application WO/2016/176998
Kind Code:
A1
Abstract:
An auxiliary converter having multi-protection comprises a first protection circuit (100), an inverter circuit (110), a second protection circuit (120) and a control circuit (130). The first protection circuit (100), the inverter circuit (110) and the second protection circuit (120) are sequentially connected, and are respectively connected to the control circuit (130). The first protection circuit (100) comprises a first switch (101), a first resistor (102) and a second resistor (103). One end of each of the first switch (101) and the first resistor (102) is connected to a direct-current voltage input end, and the other end of the first resistor (102) is connected to one end of the second resistor (103). The other end of the second resistor (103) and the other end of the first switch (101) are respectively connected to a positive input end of the inverter circuit (110). A control end of the first switch (101) is connected to the control circuit (130). The auxiliary converter effectively protects and controls an input voltage and an output voltage of an inverter circuit and controls an input current of the inverter circuit, thus effectively avoiding a damage of a large pre-charge current, greatly reducing a fault rate of the auxiliary converter and reducing a locomotive maintenance and operation cost.
Inventors:
JI HUIGANG (CN)
ZHANG GUICHENG (CN)
GAO YONGJUN (CN)
WU CAISHENG (CN)
ZHU JIANBO (CN)
TANG ZIHUI (CN)
LIU FENGDONG (CN)
JIANG XUEJUN (CN)
DING QIAOYA (CN)
YI LEI (CN)
ZHANG GUICHENG (CN)
GAO YONGJUN (CN)
WU CAISHENG (CN)
ZHU JIANBO (CN)
TANG ZIHUI (CN)
LIU FENGDONG (CN)
JIANG XUEJUN (CN)
DING QIAOYA (CN)
YI LEI (CN)
Application Number:
PCT/CN2015/097506
Publication Date:
November 10, 2016
Filing Date:
December 15, 2015
Export Citation:
Assignee:
YONGJI XINSHISU ELECTRIC EQUIP (CN)
International Classes:
H02M1/32
Foreign References:
| CN102638155A | 2012-08-15 | |||
| CN103078537A | 2013-05-01 | |||
| CN104811025A | 2015-07-29 | |||
| CN103915994A | 2014-07-09 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
北京同立钧成知识产权代理有限公司 (CN)
北京同立钧成知识产权代理有限公司 (CN)
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