Fuzzy-based Speed Control of Five-phase Induction Motor

This paper presents the simulation of fivephase nine levels inverter fed five-phase induction motor. The poor quality of voltage and current of a conventional inverter fed induction machines is due to the presence of harmonics which increases their losses. For five phases induction motor fed from multi-level inverters, the current stress of the semiconductor devices decreases, torque ripple is reduced and the rotor harmonic currents are smaller. The dynamic behavior of the induction motor has been examined for constant v/f operation and the simulation results have been given. This paper presents a rule-based fuzzy logic controller applied to a scalar closed loop V/f induction motor (IM) control with slip regulation. The simulation results are obtained and compared with that of conventional PI controller method.