SVPWM Performance of PMSM Variable Speed and Impact of Diagnosis Sensors Faults

In this paper, the performances of a permanent magnet synchronous motor and impact of the control method on the diagnosis strategy are presented. First, permanent magnet synchronous motor and two level three phase inverter with space vector PWM strategy is developed. The PMSM speed is controlled by sliding mode control. A comparative study between standard and symmetric SVPWM methods is used. Latest part is devoted to treat fault detection on the sensors by a state estimation method. In our case, the sensors to monitor are those of the phase currents. Simulation results in superposition for both SVPWM methods have been compared, and fault detection diagnoses are presented.