电动汽车双模糊直接转矩控制系统设计  

Design of Double Fuzzy Direct Torque Control System for Electric Vehicles

作　　者：邹宇[1] 王剑平[1] 向凤红[1] 毛剑琳[1] 田飞[1] 

机构地区：[1]昆明理工大学信息工程与自动化学院,昆明650500

出　　处：《机械科学与技术》2014年第10期1568-1573,共6页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家863计划项目(2007AA010409);国家自然科学基金(60863004;61364008);云南省自然科学基金项目(2009CD041;2010CD038);云南省教育厅重点基金项目(2013Z0127)资助

摘　　要：针对传统直接转矩控制系统转矩脉动大及速度调节器跟踪精度不高的缺点,提出了一种基于STM32的电动汽车双模糊直接转矩控制系统方案。该方案用模糊控制器分别代替磁链、转矩滞环比较器和速度PI调节器,以STM32为核心控制器件,组建了一个全数字化电动汽车异步电机直接转矩控制实验系统。在考虑运行环境及机械传动干扰等因素影响下,利用该控制系统对电机进行了性能测试并模拟车载运行。实验结果表明该系统可有效减小转矩和磁链脉动,提高系统的鲁棒性和自适应性,改善系统的动、静态品质。To solve the problems of large torque ripples and improve the tracking accuracy of speed regulator in conventional direct torque control system, this paper proposed a design scheme of double fuzzy direct torque control system for an electric motor vehicle based on the STM32. The scheme uses a fuzzy controller instead of flux linkage and torque hysteresis comparator and speed PI regulator, in which the STM32 is the core control device. A full digital electric vehicle induction motor direct torque control experiment system is established. The simulation experiments are conducted to evaluate the motor performance, where some influence factors such as the running environment and mechanical drive interference are considered. The experimental results show that the system can effectively reduce torque and flux ripple, enhance the robustness and adaptability of the system, and improve the dynamic and static qualities of the system.

关 键 词：电动汽车 STM32 异步电机 直接转矩控制 模糊控制器 

分 类 号：TM343[电气工程—电机]