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Patent Searching and Data


Title:
MOTOR CONTROL DEVICE AND CONTROL METHOD THEREOF
Document Type and Number:
Japanese Patent JP2019122238
Kind Code:
A
Abstract:
To effectively suppress both the rapid deceleration of a motor and the overvoltage of a power line connecting a DC power supply and an inverter.SOLUTION: A control unit 30 performs abnormality determination on at least one of a DC power supply 2, a motor 3, an inverter 11, and a sensor 20. Further, the control unit 30 controls one of three-phase short circuit control in which one of high side switching element groups S1, S2, and S3 and low side switching element groups S4, S5, and S6 is turned on, and the other is turned off according to a torque acting on the motor 3 in an abnormal continuation period after it is determined that there is an abnormality by abnormal determination, and fully-open control in which all of the high side switching element groups S1, S2 and S3 and the low side switching element groups S4, S5, and S6 are turned off.SELECTED DRAWING: Figure 1

Inventors:
AOKI YUJI
YUKAWA JUNICHI
WATANABE HISAZUMI
Application Number:
JP2018171282A
Publication Date:
July 22, 2019
Filing Date:
September 13, 2018
Export Citation:
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Assignee:
PANASONIC IP MAN CORP
International Classes:
H02M7/48; H02H7/00; H02P3/22
Attorney, Agent or Firm:
新居 広守
寺谷 英作
道坂 伸一