针对考虑铁损的电动汽车用异步电动机驱动系统中存在的负载扰动和系统参数不确定问题,采用模糊逻辑系统逼近系统中的非线性项,通过引入命令滤波反步技术克服传统反步法无法避免的"计算爆炸"问题,引入补偿信号消除滤波误差的影响,实现对异步电动机的位置跟踪控制.Matlab仿真结果验证了所提出方法的有效性.
For the problem of position tracking control for induction motors with iron losses in electric vehicle drive systems with load torque disturbance and parameters uncertainties. Fuzzy logic systems are used to approximate unknown nonlinear functions, the adaptive command filtered backstepping scheme is introduced to overcome the problem of"explosion of complexity"inherent in the traditional backstepping design procedure, and the compensating signals are employed to remove the effect of the errors caused by the filters. Simulation results show the effectiveness of the proposed method.