MINIMIZATION OF TORQUE RIPPLES IN BLDCMOTOR USING FUZZY LOGIC CONTROLL

The book emphasize on the ripple minimization of brushless DC Motor with Proportional Integral (PI) and Fuzzy Logic Controller (FLC). Proportional Integral (PI) has disadvantage and it does not operate properly when the system has a high degree of load disturbances. In recent years, the application of Fuzzy Logic Controller (FLC) for high dynamic performance of motor drives has become an important tool. FLC is a good for load disturbances and it is easily implemented. The Modelling and Simulation of both the speed controllers have been made by MATLAB/SIMULINK. However, in practice, torque ripple appears on the delivered output torque. Some of these ripples result from the natural structure of the motor, while some are related to the motor design parameters. Nevertheless, these torques could be minimized throughout the machine design process. Another source of ripples is associated with the control and drive side of the motor. So, the torque ripples associated with machine control and drives that could be minimized by applying Fuzzy Logic Controller.