A Neural Network Adaptive Control for AC Motor Variable Frequency Speed Control System

In this paper, an adaptive control method based neural networks is presented for a set of AC motor Variable Frequency Speed Control System with model unknown. Nonlinear model is obtained by using a NN identifier instead of real system dynamic characteristics, another NN is used for adaptive controller to obtain high performance. Simulation results show that the proposed control method has strong robustness and ability of rejecting disturbance, especially it is effective for the nonlinear AC speed control system with undetermined or variable parameters.