Title:
PERMANENT MAGNET DIRECT DRIVE SUBWAY TRAIN
Document Type and Number:
WIPO Patent Application WO/2018/058996
Kind Code:
A1
Abstract:
A permanent magnet direct drive subway train, comprising a train body, a frame mechanism (1) and wheelset mechanisms arranged below the train body. A permanent magnet synchronous traction motor (4) is embracingly installed on a wheel axle, both ends of a rotor (9) of the permanent magnet synchronous traction motor (4) being connected to a train axle (20), and the inside of a stator (10) of the permanent magnet synchronous traction motor (4) being connected to the frame mechanism (1) by means of an elastic support structure (5). An axle-control method is used on a traction system which matches the direct drive permanent magnet synchronous motor (4), and an isolation contactor is provided between each motor and a traction inverter. An axle-control method is used on a traction system which matches the direct drive permanent magnet synchronous motor; a control system does not restrict the differences of wheel diameters between axles during operation, greatly reducing the workload and maintenance costs for vehicle spinning wheels; provided between each motor and a traction inverter is an isolation contactor, in order to prevent the motor, after a failure thereof, from being converted to a generator, which interrupts the operations of the inverter, thus ensuring the safety of the traction system when the motor fails.
Inventors:
HU DINGXIANG (CN)
ZHAO XUDONG (CN)
FENG ZUNWEI (CN)
CHU YONGPING (CN)
LIANG XIAOQIANG (CN)
ZHU HANG (CN)
ZHANG YANG (CN)
HE BINBIN (CN)
ZHAO XUDONG (CN)
FENG ZUNWEI (CN)
CHU YONGPING (CN)
LIANG XIAOQIANG (CN)
ZHU HANG (CN)
ZHANG YANG (CN)
HE BINBIN (CN)
Application Number:
PCT/CN2017/086768
Publication Date:
April 05, 2018
Filing Date:
June 01, 2017
Export Citation:
Assignee:
CRRC NANJING PUZHEN CO LTD (CN)
International Classes:
B61C3/00; B61C9/50
Foreign References:
| CN106515750A | 2017-03-22 | |||
| CN105197021A | 2015-12-30 | |||
| CN104859668A | 2015-08-26 | |||
| CN103516281A | 2014-01-15 | |||
| CN202765007U | 2013-03-06 | |||
| CN105262303A | 2016-01-20 | |||
| JP2008079418A | 2008-04-03 |
Attorney, Agent or Firm:
NANJING TONGZE PATENT AGENCY FIRM (LIMITED LIABILITY PARTNERSHIP) (CN)
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