电机与控制应用2017，Vol.44Issue(11)：42-49,8.
基于占空比调节的无刷直流电机直接转矩控制
Direct Torque Control with Duty Cycle Control Strategy for Brushless DC Motor
摘要
Abstract
For the traditional direct torque control (DTC) system of Brushless DC Motors (BLDCM),the motor was imposed on one fixed voltage vector during a control cycle,which lead to great torque ripples and inconstant switching frequency.In order to suppress the torque ripples and keep the switching frequency constant so that the reliability of the system could be improved,the duty ratio control method was introduced into the DTC system of BLDCM and the effect of four duty ratio determination method for suppressing the torque ripples were studied.By using the duty ratio control method,the acting time of the active voltage vector and zero voltage vector during one control cycle were decided by the duty ratio,so the torque could be controlled more accurately and the torque ripples could be suppressed.The results of the simulation and experiments highlight the validation of the method proposed.关键词
无刷直流电机/直接转矩控制/占空比/转矩脉动Key words
brushless DC motor (BLDCM)/direct torque control (DTC)/duty ratio/torque ripple分类
信息技术与安全科学引用本文复制引用
潘峰,周运杰,卢沁雄,闫庚龙,韩如成..基于占空比调节的无刷直流电机直接转矩控制[J].电机与控制应用,2017,44(11):42-49,8.基金项目
山西省自然科学基金项目(2010011024-3) （2010011024-3）
