Title:
ELECTRIC MOTOR CAR CONTROL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2008/053554
Kind Code:
A1
Abstract:
An electric motor car control apparatus has a speed sensorless vector control
means that estimates, from the output voltage command and output current of a
VVVF inverter, a rotational speed of an AC electric motor and controls, based
on the estimated value, the VVVF inverter. The electric motor car control apparatus
further has an overhead-wire current detecting means (4) that detects a current
from an overhead wire (1); an irregular-operation detecting means (12) that
detects an irregularity of the speed sensorless vector control means (11) from
the sign of a current of the overhead wire detected by the overhead-wire current
detecting means during the operation of the VVVF inverter (6); and a gate stop
means (13) that causes the VVVF inverter to stop when the irregular-operation
detecting means detects the irregularity.
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Inventors:
NEGORO HIDETO (JP)
KONO MASAKI (JP)
KONO MASAKI (JP)
Application Number:
PCT/JP2006/321945
Publication Date:
May 08, 2008
Filing Date:
November 02, 2006
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
NEGORO HIDETO (JP)
KONO MASAKI (JP)
NEGORO HIDETO (JP)
KONO MASAKI (JP)
International Classes:
B60L3/00; B60L3/04; B60L9/18; H02P21/00; H02P21/18; H02P21/24; H02P23/07; H02P27/04; H02P27/06
Foreign References:
| JP2003018898A | 2003-01-17 | |||
| JPS6181102A | 1986-04-24 | |||
| JPH0595605A | 1993-04-16 |
Attorney, Agent or Firm:
OIWA, Masuo (Minamitsukaguchi-cho 2-chomeAmagasaki-shi, Hyogo 12, JP)
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