永磁无刷直流电动机转矩脉动抑制方法研究综述  

Overview of Reducing Torque Ripple for Brushless DC Motor

作　　者：夏鲲[1] 徐鑫悦[1] 丁晓波[1] 朱琳玲[1] 陈文[1] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《系统仿真学报》2014年第7期1417-1423,共7页Journal of System Simulation

基　　金：国家自然科学基金项目(51207091/E070303)

摘　　要：简要分析了永磁无刷直流电动机换相转矩脉动产生的原因,总结了国内外主要的抑制转矩脉动的控制方法,介绍了这些方法各自的优势与局限性。对近年来部分学者关注的增加前级变换器直接调节直流母线电压作为抑制转矩脉动的方法进行了重点分析,其主要特点之一就是在高低转速区均获得较好的转矩脉动抑制效果。在MATLAB/Simulink环境下对直流母线调压式转矩脉动抑制电路拓扑进行了仿真建模,实验表明,该电路在高速以及低速段转矩脉动均可以减少到平均转矩的5%以下。同时在高速区能适当提高电机平均输出转矩,在低速区也仅仅损失较少的输出转矩。The cause of commutation torque ripple was briefly analyzed, the major control methods of the torque ripple suppression at home and abroad were summarized, and the advantages and limitations of these methods were introduced. The method of suppress torque ripple by adding an accessorial DC converter was analyzed as focus, which has a good effect on torque ripple suppression at both high and low speed. Simulation model was constructed in the MATLAB/Simulink circumstance. According to the results, either at high speed or low speed the torque ripple can be reduced to less than 5% of the average output torque. At the same time, the average output torque of the motor is improved properly at high speed while slightly less at low speed.

关 键 词：无刷直流电机 换相转矩脉动 直流母线调压 系统仿真 

分 类 号：TM301.2[电气工程—电机]