Title:
MOTOR CONTROLLER USING INVERTER
Document Type and Number:
Japanese Patent JP2004236371
Kind Code:
A
Abstract:
To provide a motor controller using an inverter device which protects it from overvoltage by providing it with an effective restraining means against surge voltage at turning off of an IGBT in regeneration.
In the case that the above detected surge voltage gets over a specified value, a determining part outputs an abnormality signal, and a control part restricts torque by torque command restriction.
Inventors:
ISHIKAWA KATSUMI
MIYAZAKI HIDEKI
TAKAHASHI KATSUAKI
SUZUKI KATSUNORI
SAITO RYUICHI
MIYAZAKI HIDEKI
TAKAHASHI KATSUAKI
SUZUKI KATSUNORI
SAITO RYUICHI
Application Number:
JP2003018406A
Publication Date:
August 19, 2004
Filing Date:
January 28, 2003
Export Citation:
Assignee:
HITACHI LTD
International Classes:
B60L3/00; H02M1/00; H02M1/08; H02M7/48; H02P3/18; H02P6/12; H02P6/24; H02P27/06; (IPC1-7): H02P6/12; H02M1/00; H02M1/08; H02M7/48; H02P3/18; H02P6/24; H02P7/63
Attorney, Agent or Firm:
Katsuo Ogawa
Kyosuke Tanaka
Takashi Sasaki
Kyosuke Tanaka
Takashi Sasaki