Suppression Method for Torque Ripple of PM Synchronous Motor

Hiroyuki Yonezawa; Katsunori Taniguchi; Hyun Woo Lee

Suppression Method for Torque Ripple of PM Synchronous Motor

Hiroyuki Yonezawa

Katsunori Taniguchi

Hyun Woo Lee

Vol. 5, No. 4, pp. 264-271, Oct. 2005

10.6113/JPE.2005.5.4.264

PMSM

Torque ripple

Electro-motive force

Modified trapezoidal modulating signal

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Abstract

A new modified trapezoidal modulating signal for a pulse width modulation (PWM) inverter suitable for a permanent magnet synchronous motor (PMSM) drive is proposed in this paper. A new modulating signal for the PMSM drive is determined by the characteristic torque ripple of the motor with various electro-motive force (EMF). The proposed modulating signal is able to decrease the torque ripple even if the motor has sinusoidal EMF or non-sinusoidal EMF. By using the proposed modulating signal, the system reduced the torque ripple as well as achieved the effective utilization of the DC supply voltage for the inverter. Many improvements are accomplished by the PWM strategy adapting the modified trapezoidal modulating signal without a change in hardware.

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Cite this article

[IEEE Style]

H. Yonezawa, K. Taniguchi, H. W. Lee, "Suppression Method for Torque Ripple of PM Synchronous Motor," Journal of Power Electronics, vol. 5, no. 4, pp. 264-271, 2005. DOI: 10.6113/JPE.2005.5.4.264.

[ACM Style]

Hiroyuki Yonezawa, Katsunori Taniguchi, and Hyun Woo Lee. 2005. Suppression Method for Torque Ripple of PM Synchronous Motor. Journal of Power Electronics, 5, 4, (2005), 264-271. DOI: 10.6113/JPE.2005.5.4.264.