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.pdfVIP

第 35 卷 第 4 期 中 国 电 机 工 程 学 报 Vol.35 No.4 Feb.20, 2015 2015 年 2 月 20 日 Proceedings of the CSEE ©2015 Chin.Soc.for Elec.Eng. 971 DOI ：10.13334/j.0258-8013.pcsee.2015.04.026 文章编号：0258-8013 (2015) 04-0971-08 中图分类号：TM 344 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 夏鲲，朱琳玲，曾彦能，徐鑫悦，杨益华 (上海理工大学光电信息与计算机工程学院，上海市 杨浦区 200093) Researches on the Method of Suppressing Commutation Torque Ripple for Brushless DC Motors Based on a Quasi-Z-Source Net XIA Kun, ZHU Linling, ZENG Yanneng, XU Xinyue, YANG Yihua (School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Yangpu District, Shanghai 200093, China) ABSTRACT: Focusing on popular existed high commutation 效抑制换相转矩脉动。分析了换相转矩脉动产生的原因，详 torque ripple of square waves driving brushless DC motors, 细介绍了通过增加前级功率变换电路抑制换相转矩脉动的 this paper presented a new method of suppressing commutation 电路拓扑与控制算法。仿真及实验结果表明，该方法能够有 torque ripple for brushless DC motors based on a 效抑制永磁无刷直流电机换相转矩脉动，如采用合适的电路 Quasi-Z-Source net. The Quasi-Z-Source net was employed at 参数，仿真模型中转矩脉动可减少到平均转矩的 4.6% 以下， the front of the three-phase bridge. The control strategy was to 实际设计的系统实验可将转矩脉动抑制在平均转矩的 12% adjust the DC link voltage of the motor controller via the 以下。 Quasi-Z-Source net to keep the incoming and outgoing phase 关键词：无刷直流电机；转矩脉动；准 Z 源网络；功率变 currents changing at the same rate during commutation, hence 换电路 to effectively suppress commutation torque ripple. The cause of commutation ripple was analyzed. A novel circuit topology and 0 引