Fuzzy Logic Controller Based Speed Ripple Reduction in PMSM

The pulsating torque produced in the Permanent Magnet Synchronous Motor (PMSM) causes a speed ripple which leads to speed variation and reduced efficiency of the motor. The use of conventional controller such as PI, PD and PID however causes system non-linearity and load torque variations. To overcome this issue a fine tuned fuzzy logic technique is implemented with certain control algorithm using MATLAB simulation. By this closed loop control technique, a consistent speed performance of PMSM is achieved. The simulation results of PMSM using FLC shows the higher result compared to traditional technique. Thus the fuzzy logic system gives the reduced speed ripple which can be implemented in electrical vehicle.