Comparison between PI and fuzzy controllers in speed control of PMSM

The speed control of electric machines by using flow direction controller uses classically Proportional Integral (PI) controlers. Who can achieve satisfactory targets on the dynamics of torque, speed and flow. In this paper we present a strategy for vector control using a modern fuzzy logic speed controller, applied to permanent magnetic synchronous machine powered by an inverter control with Space Vector Modulation (SVM), capaUe of providing, when binding requests, more satisfactory answers in torque, flow and speed. The comparison between the two methods under the same conditions illustrated by results of simulations.