Perfect Speed Tracking of Direct Torque Controlled-Induction Motor Drive Using Fuzzy Logic

In this paper, a simple and perfect speed tracking of direct torque controlled-induction motor drive using fuzzy logic is proposed. The fuzzy logic controller solves the problem of nonlinearities and parameter variations of induction motor. Unlike the conventional standard fuzzy logic controllers, the proposed controller has much less computationally demanding. The direct torque control scheme of induction motor is first introduced. Then, the specified rules and their membership functions of the proposed fuzzy system are represented. The fuzzy rules and the membership functions are tuned to give best performance. The performance of the proposed controller is evaluated under various operating conditions. The controller is shown to be robust, and inherently adaptive in nature. Results demonstrate the efficacy of the control system