Torque Ripple Analysis and Reduction of Permanent Magnet Synchronous Motor
Torque ripple of vector-controlled permanent magnet synchronous motor(PMSM) is analyzed from the inverter viewpoint, with the use of flux linkage formula, stator flux linkage locus is calculated respectively in view of space vector pulse width modulation(SVPWM) and dead-time effect. Torque ripple quantity is calculated caused by the aberration of flux linkage vector, its relationship with output frequency and carrier frequency is analyzed. Torque ripple characteristics are obtained, based on which, reduction methods are proposed. There is confliction between the two ripple reductions in carrier frequency, several factors in integrative reducing torque ripple are presented. The proposed methods have application value for torque ripple reduction and carrier frequency selection of the inverter.
Permanent magnet synchronous motor Torque ripple Reduction
Wu Maogang Zhao Rongxiang
College of Automation , Hangzhou Dianzi University, Hangzhou 310018 College of Electrical Engineering , Zhejiang University, Hangzhou 310027
国际会议
2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)
广西桂林
英文
1680-1684
2009-06-17（万方平台首次上网日期，不代表论文的发表时间）