Title:
MOTOR CONTROLLER AND MOTOR CONTROL METHOD
Document Type and Number:
Japanese Patent JP2017189029
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To achieve prevention of an inverter or a motor from being destructed by suppressing a rise in a voltage across a capacitor terminal and a rise in a phase current running through each phase of the motor when the inverter is isolated from a DC power supply, as well as miniaturization and cost reduction.SOLUTION: The motor controller includes an inverter and a switching control part. The switching control part starts three-phase short-circuit processing at such timing that the maximum of respective phase current absolute values in a three-phase synchronous motor after starting the three-phase short-circuit processing becomes the minimum when executing three-phase short-circuit processing for turning on all of upper side switching elements or lower side switching elements which constitute the inverter.SELECTED DRAWING: Figure 2
More Like This:
| JP4340299 | Motor control device and motor control system |
| JPH08308240 | UNAUTHORIZED DUPLICATED SOFTWARE INVALIDATING METHOD FOR INVERTER |
| JPH09292901 | CONTROLLER |
Inventors:
SHINOHARA RYO
Application Number:
JP2016076468A
Publication Date:
October 12, 2017
Filing Date:
April 06, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02P27/06; H02P3/22; H02P21/36
Domestic Patent References:
| JPH10271884A | 1998-10-09 | |||
| JP2012130111A | 2012-07-05 | |||
| JP2006320134A | 2006-11-24 | |||
| JP2005094826A | 2005-04-07 |
Foreign References:
| WO2012070106A1 | 2012-05-31 | |||
| WO2015011941A1 | 2015-01-29 |
Attorney, Agent or Firm:
Michiharu Soga
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Satoshi Iino
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Satoshi Iino