重载交流电动轮扭矩脉动的影响及改善  

The reason and improvement for torque ripple of AC electric-wheel

作　　者：傅明志[1] 胡仕成[1] 邓华[1] 张卫东[1] 朱广辉[1] 

机构地区：[1]中南大学机电工程学院现代复杂装备设计与极端制造教育部重点实验室,长沙410083

出　　处：《现代制造工程》2009年第5期75-78,共4页Modern Manufacturing Engineering

基　　金：国家科技支撑计划项目(2006BAB11B03)

摘　　要：针对重载电动轮对输入转矩脉动敏感的缺点,提出减小电动轮总成中感应牵引电动机输出转矩脉动的方法。描述感应电动机的矢量控制数学模型,并应用Matlab/Simulink软件建立传动系统仿真模型。分析矢量控制中滞环脉冲发生器环宽对电动机转矩脉动的影响,以及磁链给定值对电动机输出转矩脉动的影响。仿真结果表明:通过以上方法可以较好地改善电动机转矩脉动问题,改善电动轮的使用性能。A method to decrease torque ripple of induction motor was developed to solve the problems that over lord electric-wheel is sensitive to input torque ripple. The vector control mathematic model of induction motor was deduced and the modeling on the driving system of induction motor were completed by Matlab/Simulink. The influence of the hysteresis band value of current regulator and the reference value of flux on the vector control are analyzed. Simulations and experiments show that the method could decrease torque ripple of induction motor and improved the perfermenee of electric-wheel.

关 键 词：电动轮 交流传动 转矩脉动 矢量控制 转子时间常数 

分 类 号：TM922[电气工程—电力电子与电力传动]