基于换相与电流控制对无刷直流电机非理想反电势转矩脉动的控制  

The suppression to Torque Ripple of Brushless DC Motor under Non-Ideal Back-EMF Circumstance by Combining the Advance Angle Opened Commutation Method with Current Control Method

作　　者：李劲松[1] 杨晓武[1] 李干蓉[1] 饶有祥 

机构地区：[1]铜仁职业技术学院,贵州铜仁554300 [2]铜仁市农机研究中心,贵州铜仁554300

出　　处：《机电工程技术》2012年第9期46-50,共5页Mechanical & Electrical Engineering Technology

摘　　要：从无刷直流电机转矩脉动产生的原理出发,分析了转矩脉动在非理想反电势情况下产生的原因,并提出通过提前角开通换相法与电流控制相结合的控制策略以减少电磁转矩脉动。仿真结果证明该控制策略能有效地控制由非理想反电势引起的无刷直流电机换向产生的电磁转矩脉动。Based on the principle of torque ripple produced brushless DC motor, the article analyzes the reasons for torque ripple under non-ideal Back-EMF circumstance, and puts forward the control strategy that combines the advance angle opened commutation method with current controlling to reduce the electromagnetic torque ripple. The simulation results prove that the control strategy can work effectively to control the electromagnetic torque ripple which produced by brushless DC motor under non-ideal Back-EMF circumstance.

关 键 词：无刷直流电机 转矩脉动 反电势 换相法 电流控制 

分 类 号：TM301.2[电气工程—电机]