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http://dx.doi.org/10.6113/TKPE.2017.22.5.449

Current Compensation Scheme to Reduce Torque Ripples of Delta-connected Low-inductance BLDC Motor Drives  

Park, Do-Hyeon (Dept. of Electrical Eng., Yeungnam University)
Lee, Dong-Choon (Dept. of Electrical Eng., Yeungnam University)
Lee, Hyong-Gun (Servo Motor Research Center, LC-TEK Co., Ltd.)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.22, no.5, 2017 , pp. 449-456 More about this Journal
Abstract
This study proposes a method for compensating for the commutation torque ripple of delta-connected brushless DC motors with low inductance based on a current predictions. At the commutation instant, a phase current at the next sampling period is predicted and compared with the reference phase current to determine whether torque ripples will occur or not. If the predicted current cannot reach the reference phase current, the reference current is modified and the relevant voltage reference is produced to reduce the torque ripple. The validity of the proposed method has been verified by simulation and experimental results. The commutation torque ripple has been decreased by 17.7% at 1,000 rpm and 80% load conditions.
Keywords
BLDC motor; Current prediction; Delta-connection; Torque ripple;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
연도 인용수 순위
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