无刷直流电机转矩脉动抑制综述  

Review of Torque Ripple Suppression of Brushless DC Motor

作　　者：卞经博 BIAN Jingbo(Anhui University of Science&Technology,Huainan Anhui 232001)

机构地区：[1]安徽理工大学,安徽淮南232001

出　　处：《河南科技》2021年第12期29-31,共3页Henan Science and Technology

摘　　要：无刷直流电机具有效率高、可靠性强、尺寸紧凑和控制简单等优势,十分受市场欢迎。然而,转矩脉动是限制无刷直流电机发展的关键问题之一。本文介绍了转矩脉动产生的机理,综述了脉冲宽度调制(PWM)法、重叠换相法、滞环控制法和电流预测法。研究表明,这些方法都能在特定应用场景对转矩脉动起到很好的抑制作用。Brushless DC motors have the advantages of high efficiency,strong reliability,compact size and simple control,and are very popular in the market.However,torque ripple is one of the key issues that limit the development of brushless DC motors.This paper introduces the mechanism of torque ripple,and summarizes the pulse width modulation(PWM)method,overlap commutation method,hysteresis control method and current prediction method.Research shows that these methods can effectively suppress torque ripple in specific application scenarios.

关 键 词：无刷直流电机 转矩脉动抑制 换相转矩脉动 

分 类 号：TM33[电气工程—电机]