Title:
POWER CAR TRACTION SYSTEM SUPPORTING MULTIPLE POWER SUPPLY MODES
Document Type and Number:
WIPO Patent Application WO/2020/113602
Kind Code:
A1
Abstract:
Provided in an embodiment of the present invention is a power car traction system supporting multiple power supply modes, comprising: an alternating current pantograph; a direct current pantograph; a disconnector; an alternating current high voltage compartment; a direct current high voltage compartment; a traction transformer; a traction auxiliary converter; and a traction motor. The alternating current high voltage compartment is connected to the alternating current pantograph. The disconnector is connected to the direct current pantograph. The direct current high voltage compartment is connected to the disconnector. The traction transformer is connected to the alternating current high voltage compartment and the direct current high voltage compartment. A primary side of the traction transformer is connected to a ground device. A current transformer is provided at each of the primary side and a grounding end of the traction transformer. The traction auxiliary converter has an input end connected to the traction transformer and an output end connected to the traction motor. The solution of the present invention can realize an alternating current power supply mode and a direct current power supply mode, thereby enhancing applicability of a power car. Moreover, a secondary side winding of the traction transformer can serve as a smoothing reactor, thereby reducing the space occupied by a circuit, and increasing economic benefits.
Inventors:
XU MENG (CN)
HA DALEI (CN)
LV YI (CN)
CHEN TIANYU (CN)
JIN WENBIN (CN)
HA DALEI (CN)
LV YI (CN)
CHEN TIANYU (CN)
JIN WENBIN (CN)
Application Number:
PCT/CN2018/120148
Publication Date:
June 11, 2020
Filing Date:
December 10, 2018
Export Citation:
Assignee:
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD (CN)
International Classes:
B60L9/30; B60L3/00
Foreign References:
| CN109318720A | 2019-02-12 | |||
| CN104648170A | 2015-05-27 | |||
| CN108656955A | 2018-10-16 | |||
| CN1176524A | 1998-03-18 | |||
| CN102139643A | 2011-08-03 | |||
| EP0811522A2 | 1997-12-10 | |||
| EP0698519A1 | 1996-02-28 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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