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1. (WO2018040368) DIESEL MULTIPLE UNIT, POWER SUPPLY SYSTEM THEREOF, AND TRACTION CONTROL METHOD THEREFOR

Pub. No.:    WO/2018/040368    International Application No.:    PCT/CN2016/109707
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Wed Dec 14 00:59:59 CET 2016
IPC: B61C 5/00
B60L 11/02
B60L 7/10
H02J 3/02
Applicants: CRRC ZHUZHOU LOCOMOTIVE CO., LTD
中车株洲电力机车有限公司
Inventors: LIU, Bin
刘斌
ZHOU, Ande
周安德
LI, Yunlong
李耘茏
CHEN, Aijun
陈爱军
Title: DIESEL MULTIPLE UNIT, POWER SUPPLY SYSTEM THEREOF, AND TRACTION CONTROL METHOD THEREFOR
Abstract:
A power supply system of a diesel multiple unit, comprising a diesel power pack, and a traction inverter and an auxiliary inverter connected to the diesel power pack. The traction inverter is connected to a traction motor; the auxiliary inverter is connected to a unit load; a supercapacitor connected in parallel with the diesel power pack by means of a direct-current chopper is further comprised; the direct-current chopper and the diesel power pack are both connected with the traction inverter and the auxiliary inverter by means of an intermediate direct-current link of the traction inverter. By applying the power supply system, intermediate voltage control is simplified, and system stability and control simplicity are enhanced. During traction, high power can be supplied by the supercapacitor in a short time, so that a train is started to accelerate, and therefore, a small diesel power pack can be selected, thereby reducing the size and weight of the diesel power pack and making it easy to mount. Energy regenerated in train braking is recycled, so that the effects of energy conservation and emission reduction are achieved. Additionally, further disclosed are a diesel multiple unit comprising the power supply system and a traction control method for the diesel multiple unit.