Title:
TRACTION-AUXILIARY CONVERTER AND CONVERTER CABINET FOR INTERNAL COMBUSTION LOCOMOTIVE
Document Type and Number:
WIPO Patent Application WO/2021/042557
Kind Code:
A1
Abstract:
A traction-auxiliary converter and converter cabinet for an internal combustion locomotive, aimed at solving the technical problems that an existing internal combustion AC transmission locomotive is low in integration level, poor in energy conservation and emission reduction effect, and large in occupied locomotive space. The following technical solution is used: the traction-auxiliary converter comprises a rectifier (1) electrically connected to a main generator; the rectifier (1) is connected to an intermediate DC loop (2); a grounding detection module (3), a manual discharge module (4), a brake chopper (5), and an inverter set which are connected in parallel are arranged in the intermediate DC loop (2); the brake chopper (5) is equipped with a chopper brake resistor; the inverter set comprises an auxiliary fixed-frequency inverter (6), an auxiliary variable-frequency inverter (7), and three traction inverters (8) which are connected in parallel. The converter cabinet comprises two sets of the converters, the auxiliary fixed-frequency inverters (6) of the two sets of traction-auxiliary converters are electrically connected by means of a fixed-frequency expansion loop (9), and the auxiliary variable-frequency inverters (7) of the two sets of traction-auxiliary converters are electrically connected by means of a variable-frequency expansion loop (10).
Inventors:
WANG BIN (CN)
JIN CHUNYU (CN)
LIU ZHUN (CN)
SUN XIANGYI (CN)
MA LIANFENG (CN)
CHAI YUAN (CN)
SUN XIAOLI (CN)
JIN CHUNYU (CN)
LIU ZHUN (CN)
SUN XIANGYI (CN)
MA LIANFENG (CN)
CHAI YUAN (CN)
SUN XIAOLI (CN)
Application Number:
PCT/CN2019/118300
Publication Date:
March 11, 2021
Filing Date:
November 14, 2019
Export Citation:
Assignee:
CRRC YONGJI ELECTRIC CO LTD (CN)
International Classes:
H02M5/40; B61C17/00
Foreign References:
| CN103192726A | 2013-07-10 | |||
| CN106183834A | 2016-12-07 | |||
| CN106671796A | 2017-05-17 | |||
| CN106004891A | 2016-10-12 | |||
| CN103158566A | 2013-06-19 | |||
| CN103129564A | 2013-06-05 | |||
| US20020101081A1 | 2002-08-01 | |||
| CN205202756U | 2016-05-04 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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