电动汽车感应电机DTC变结构双模糊控制  

DTC Variable structure fuzzy control of induction motor on electric vehicle

作　　者：佘致廷[1] 谭琼琼[1] 陈秀娟[1] 丁时云 李英[1] 

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《电源技术》2014年第11期2162-2165,共4页Chinese Journal of Power Sources

基　　金：湖南省科技计划项目(2013FJ4038)

摘　　要：电动汽车感应电机传统直接转矩控制驱动系统存在转速自适应性能差和低速转矩脉动等问题。针对这些问题,提出一种基于转速、磁链和转矩变结构模糊控制的感应电机直接转矩控制驱动系统。采用速度模糊自适应PI控制实现电动汽车变负载下转速的稳定控制,采用磁链和转矩变结构模糊控制解决转矩的脉动问题。仿真和实验结果表明:该系统磁链和转矩得到了更精细的控制,降低了低速转矩脉动,同时转速模糊控制使电动汽车获得较好的驱动自适应控制性能。Poor peed adaptive performance and low speed torque ripple were the common problems of Traditional direct torque control driving system of induction motor on Electric vehicle. A kind of induction motor direct torque drive control system based on speed, flux and torque variable structure fuzzy control method was put forward. The speed fuzzy adaptive PI control was used to ensure speed control stability of electric vehicle under variable load, and the flux and torque variable structure fuzzy control was utilized to solve the problem of torque ripple. The simulation and experimental results show that the system flux and torque are control ed more precisely, thus torque ripple in low speed is reduced, and speed fuzzy control makes electric vehicle get better driven adaptive control performance.

关 键 词：感应电机 直接转矩控制 电动汽车 变结构模糊控制 模糊自适应PI控制 

分 类 号：TM301[电气工程—电机]