车用电机转矩脉动分析与仿真  

Analysis and Simulation of Torque Ripple for Motors in Vehicle

作　　者：黄佳[1] 

机构地区：[1]同济大学汽车学院新能源汽车工程中心,上海201804

出　　处：《机电一体化》2014年第8期20-22,28,共4页Mechatronics

基　　金：国家重点基础研究发展计划项目(973项目)(2011CB711202)

摘　　要：分析了车用电机在低速时产生转矩脉动的原因,提出一种弱磁控制方法降低电机脉动,从而减弱车辆固定车速范围内的振动,并建立了电机和控制器的等效模型。仿真结果表明,该方法能够明显改善电动汽车慢速起步的振动问题。The causes of torque ripple for motors in electric vehicle are analyzed and a flux-weakening control method is proposed to reduce torque ripple as well as vibration corresponding to particular speed. Besides, an equiva- lent model of the motor and controller is established. Simulation results show that this method can significantly im- prove the vibration of electric vehicles starting at slow speed.

关 键 词：转矩脉动 车速振动 弱磁控制 

分 类 号：U469.72[机械工程—车辆工程] U463.6[交通运输工程—载运工具运用工程]