Simulation of a PMSM based electric motor propulsion system for HEV application using fixed inverter switching frequency

In recent years Hybrid Electric Vehicles(HEV) are being produced by major automobile companies. Permanent Magnet Synchronous Motors due to their unique features are a good candidate for replacing Induction Motors in HEV and EV applications. In this paper Current Ramp Control Technique is used to generate the gate pulses for the Voltage source inverter instead of the Current Hysteresis Control. Hence the switching frequency of the inverter is kept constant.