不依赖于定转子参数的感应电动机转子磁链的自适应观测器设计

摘要

给出一种新的感应电动机转子磁链自适应观测器的设计方案,以克服电动机参数发生变化时矢量控制系统性能的下降.这种设计方案不依赖于感应电动机的定转子参数,算法的稳定性和收敛性由正实误差传递函数条件下的参数调整算法保证,数字仿真结果说明了它的有效性.%To solve the problem of the performance degradation due to parameter variations in the vector control of an induction machine, this paper presents a new method of designing adaptive rotor flux observers under the rotor reference frame. Different from previous methods, this method needs no parameter values of an induction machine. The stability and convergence of the algorithms are guaranteed by the parameter adaptive algorithm with a strictly positive real error transfer function. The effectiveness is verified by numerical simulation results.