Chaos detection and control by neural networks in vector-controlled induction motor

摘要

This paper is concerned with the occurrence of chaotic motion and its chaos control in velocity control system of induction motor. The induction motor is currently used by realization of so-called vector control method. But, the stability of the velocity control system it not established, neither is robustness. Though precise parameters are necessary for the vector control method, there are often identified errors in parameters. Then, it is known that chaotic motions may occur in the velocity control system. In this paper, the existence of chaotic motion in this system can be verified from time series data. In order to prevent the chaos occurrence, a chaos control method is proposed by using the neural network controller.