摘要
近年来交流异步电机系统在电动车上的应用非常广泛,然而目前的电动车交流异步电机的控制策略依然来源于传统的电机控制,并未解决电动车特有的工况及工况切换等问题。这势必会影响电动车的平稳运行,甚至影响电动车的安全性能。本文针对电动车在工况切换产生电压、电流闪变的问题,提出了一种电动车驱动系统柔性控制策略,将电动车运行工况的切换统一为ASR和AVR动态限幅阈值的改变。仿真结果表明本文所设计的电机柔性控制策略保证了电动车工况切换时,电机电流、转矩、转速的平稳。
In recent years, it is more and more popular that the induction motor system is used in electric vehicle. However, the control strategy. of induction motor still originate from traditional motor control which does not solve the problems about working condition and condition＇s switching. This kind of strategy would definitely influence the stability of the vehicle, or even be harmful to the safety. This paper proposes a kind of flexible control strategy which deals witb the conditions＇ switching problem by considering it as the variety of dynamic ASR and AVR threshold value. The results of simulation show that the designed flexible control strategy ensures the stability of motor current, torque and speed during the switching of different working conditions.
出处
《东方电气评论》
2014年第2期8-13,共6页
Dongfang Electric Review
关键词
电动车
电机驱动系统
柔性控制策略
electric vehicle
motor driving system
flexible control strategy
