摘要
Torque ripple is one of the most important specification indexes of brushless DC torque motors. This paper analyzes the torque ripple of a sinusoidal-driven three-phase permanent magnet(PM) brushless DC (BLDC) torque motor and approaches the expression of torque ripple. An indirect method using armature currents to measure torque ripple and its implementation by hardware are presented. The torque ripple of the motor is measured by the indirect and the direct methods respecively. The validity of the indirect method is demonstrated by the comparative analysis of the experimental results.
ＩｎｄｉｒｅｃｔＭｅａｓｕｒｅｍｅｎｔｏｆＴｏｒｑｕｅＲｉｐｐｌｅｆｏｒＰｅｒｍａｎｅｎｔＭａｇｎｅｔＢｒｕｓｈｌｅｓｓＤＣＴｏｒｑｕｅＭｏｔｏｒＳＵＮＬｉ；ＺＨＡＮＧＺｈｉｚｈｏｎｇ；ＬＵＹｏｎｇｐｉｎｇ（孙力）（张志忠）（陆永平）（Ｄｅｐｔ．ｏｆ...
