Title:
MOTOR CAPABLE OF INSULATION DIAGNOSIS, MOTOR CONTROL CIRCUIT, AND METHOD FOR DIAGNOSING INSULATION OF MOTOR USING MOTOR CONTROL CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2022/149956
Kind Code:
A1
Abstract:
The present invention relates to a motor capable of insulation diagnosis, a motor control circuit, and a method for diagnosing a motor using the motor control circuit, wherein the motor may comprise: a power supply; a voltage processing unit connected to the power supply and increasing a direct current voltage or voltage overshoot; a switching unit connected to the voltage processing unit and performing pulse width modulation; and a drive unit electrically connected to the switching unit and to which a voltage is applied according to an operation of the switching unit. A diagnostic apparatus is embedded in an inverter which controls the motor to automatically perform insulation diagnosis, thereby preventing motor failure due to insulation breakdown in advance.
Inventors:
LEE SANG BIN (KR)
LEE HYEON-JUN (KR)
PARK CHEOLHUI (KR)
LEE HYEON-JUN (KR)
PARK CHEOLHUI (KR)
Application Number:
PCT/KR2022/000482
Publication Date:
July 14, 2022
Filing Date:
January 11, 2022
Export Citation:
Assignee:
UNIV KOREA RES & BUS FOUND (KR)
International Classes:
H02P27/08; G01R31/34; H02M7/04; H02M7/5395; H02P25/18
Foreign References:
| US20140176152A1 | 2014-06-26 | |||
| JP2017219352A | 2017-12-14 | |||
| JP2017142269A | 2017-08-17 | |||
| JP2020085773A | 2020-06-04 | |||
| CN111239562A | 2020-06-05 |
Attorney, Agent or Firm:
KIM, Deungyong (KR)
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