Direct Flux and Torque Control Using Estimation of Stator Resistance with Comparision of Proportional Intergal and Fuzzy Logic Based Speed Contoller for Three Phase Induction Motor
نویسنده
چکیده
This project presents a method of improving the speed profile, torque and flux using stator estimation method. This discusses the problems associated with the error in stator Resistance and proposes an analytical approach to investigate its effect on the actual and estimated variables of a induction motor. Based on how this error affects the estimated angle between the stator flux and current vectors, a method to track stator resistance variations is proposed. The speed control of the induction motor is done by using the conventional proportional integral controller and the proposed fuzzy logic based controller. The proposed fuzzy logic controller has a nature of proportional integral to determine the torque reference for the motor. The dynamic response has been clearly tested for both conventional and the proposed fuzzy logic based speed controllers.
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