저자 | Jun-Hyuk Im, Member IEEE, Jun-Kyu Kang Yeol-Kyeong Lee Jin Hur, Fellow IEEE |
---|---|
논문지명 | IEEE Access |
논문제목: Shaft Voltage Elimination Method to Reduce Bearing Faults in Dual Three-Phase Motor
저자: Jun-Hyuk Im, Member IEEE, Jun-Kyu Kang, Yeol-Kyeong Lee, Jin Hur, Fellow IEEE
ABSTRACT This paper proposes a method of eliminating common-mode voltage (CMV) and shaft voltage
in dual three-phase motors using the carrier phase shift of space vector pulse width modulation (SVPWM).
SVPWM for the dual three-phase motor is simply implemented using two traditional three-phase SVPWM
structures. The representative work of the study is to eliminate the shaft voltage by applying the carrier phase
shift method due to the cancellation of CMV. It was verified that the proposed method could reduce the shaft
voltage with a simple technique, rather than applying a complex algorithm to reduce it. Also, the motor
current and torque behaviors are analyzed to confirm that the proposed method does not affect the motor
characteristics. The proposed method has been analyzed based on an equivalent circuit model and it has been
verified through the experiment that the shaft voltage is simply eliminated by applying the proposed method.
INDEX TERMS Bearing fault, common-mode voltage, dual three-phase motor, pulse width modulation
inverter, shaft voltage.
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