Title:
【発明の名称】電気車制御装置及びインバ―タ制御装置
Document Type and Number:
Japanese Patent JP2512197
Kind Code:
B2
Abstract:
A control apparatus for an electric rolling stock makes it possible to use a single associated train in a variety of transit services including an express transit service to an accommodation train service. The apparatus comprises an induction motor (4) controlled by an inverter (3). For an express transit operation (over a long inter-station distance), the ratio of output voltage and the frequency of the inverter is decreased to thereby increase a command current in a variable voltage/variable frequency region. For the accommodation train operation (over short inter-station distance), a control pattern reverse to the above is adopted. The electric rolling stock can adapt itself to the running conditions. Besides, problem of over-heating of the induction motor (4) can be solved successfully.
Inventors:
KOTAKE KAZUYOSHI
KAWAZOE JUJI
TAKAOKA TADASHI
KAWAZOE JUJI
TAKAOKA TADASHI
Application Number:
JP10033090A
Publication Date:
July 03, 1996
Filing Date:
April 18, 1990
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H02P27/06; B60L3/00; B60L9/18; B60L9/22; B60L15/20; (IPC1-7): B60L9/18; H02P7/63
Attorney, Agent or Firm:
Katsuo Ogawa (1 person outside)