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Patent Searching and Data


Title:
CONTROL DEVICE FOR ELECTRIC ROLLING STOCK
Document Type and Number:
WIPO Patent Application WO/2016/030941
Kind Code:
A1
Abstract:
This control device 50 for electric rolling stock is provided with the following: an inverter 11 that receives electric power supplied from overhead lines 1 and drives an electric motor 12; a brake-chopper circuit 8 that comprises a switching element 6 and a brake resistance 7 and is connected in parallel with the inverter 11; a voltage detector 9 that detects a bus-conductor voltage applied to DC bus conductors 4a, 4b; and a control unit 13 that performs power-consuming control whereby regenerated power from the electric motor 12 is consumed in the brake resistance 7 and overvoltage-minimizing control whereby bus-conductor overvoltages are minimized. The control unit 13 controls the switching element 6 such that a second conduction ratio used when performing the aforementioned overvoltage-minimizing control is lower than a first conduction ratio used when performing the aforementioned power-consuming control.

Inventors:
FUJIWARA HIROSHI (JP)
YAMAMOTO YURI (JP)
HIRAYAMA YU (JP)
Application Number:
PCT/JP2014/072145
Publication Date:
March 03, 2016
Filing Date:
August 25, 2014
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P3/22; B60L7/22; H02P27/06
Foreign References:
JPH04197003A1992-07-16
JPS6233689U1987-02-27
JPS62247701A1987-10-28
Other References:
See also references of EP 3188357A4
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
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