中国电机工程学报Issue(4)：971-978,8.DOI:10.13334/j.0258-8013.pcsee.2015.04.026
基于准Z源网络的永磁无刷直流电机换相转矩脉动抑制方法
Researches on the Method of Suppressing Commutation Torque Ripple for Brushless DC Motors Based on a Quasi-Z-Source Net
摘要
Abstract
Focusing on popular existed high commutation torque ripple of square waves driving brushless DC motors, this paper presented a new method of suppressing commutation torque ripple for brushless DC motors based on a Quasi-Z-Source net. The Quasi-Z-Source net was employed at the front of the three-phase bridge. The control strategy was to adjust the DC link voltage of the motor controller via the Quasi-Z-Source net to keep the incoming and outgoing phase currents changing at the same rate during commutation, hence to effectively suppress commutation torque ripple. The cause of commutation ripple was analyzed. A novel circuit topology and a control algorithm of suppressing commutation torque ripple employed a Quasi-Z-Source net before the inverter was introduced in detail. Finally, simulation and experimental results show that, the proposed method can effectively minimizing commutation torque ripple. Torque ripple can be reduced to below 4.6% of the average torque by using appropriate circuit parameters in a simulation mode. And torque ripple can also be reduced to below 12% of the average torque via experimentation in real situation.关键词
无刷直流电机/转矩脉动/准 Z 源网络/功率变换电路Key words
brushless DC motor (BLDCM)/commutation torque ripple/Quasi-Z-Source net/power conversion circuit分类
信息技术与安全科学引用本文复制引用
夏鲲,朱琳玲,曾彦能,徐鑫悦,杨益华..基于准Z源网络的永磁无刷直流电机换相转矩脉动抑制方法[J].中国电机工程学报,2015,(4):971-978,8.基金项目
国家自然科学基金项目(51207091/E070303)。Project Supported by National Natural Science Foundation of China (51207091/E070303) （51207091/E070303）
