Title:
ELECTRIC MOTOR CONTROL DEVICE AND ELECTRIC MOTOR CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2014/045407
Kind Code:
A1
Abstract:
A current command generation unit (117) generates a current command indicating a current value supplied from an inverter circuit to multiple electric motors which are parallel-connected. A voltage command calculation unit (120) generates a voltage compensation signal which corrects for the difference between the current value actually supplied to each electric motor and the current value indicated by the current command. On the basis of a value obtained from the voltage compensation signal, a determination unit (135) determines whether a fault has occurred with at least one of the electric motors. When the determination unit (135) determines that a fault has occurred, a stopping control unit (136) stops the supply of power from the inverter circuit (108) to each electric motor.
Inventors:
KITANAKA HIDETOSHI (JP)
Application Number:
PCT/JP2012/074236
Publication Date:
March 27, 2014
Filing Date:
September 21, 2012
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
KITANAKA HIDETOSHI (JP)
KITANAKA HIDETOSHI (JP)
International Classes:
H02P5/74
Foreign References:
| JP2005176571A | 2005-06-30 | |||
| JP2009118689A | 2009-05-28 | |||
| JP2006067731A | 2006-03-09 | |||
| JP2003219699A | 2003-07-31 | |||
| JP2004080935A | 2004-03-11 |
Other References:
See also references of EP 2899873A4
Attorney, Agent or Firm:
KIMURA MITSURU (JP)
Mitsuru Kimura (JP)
Mitsuru Kimura (JP)
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