Modeling and simulation technique of two quadrant chopper and PWM inverter-fed IPMSM drive system and its application to Hybrid Vehicles

This paper presents a state space model of a two quadrant chopper and a PWM inverter Fed Interior Permanent Magnet Synchronous Motor (IPMSM) Drive System and its application to Hybrid Vehicles. Using the step-up chopper, a capacity of the battery can become smaller, and regenerate power under braking. The drive system based on optimal control theory for variable multi-output objects is controlled by variable control strategy such as Maximum Torque/Ampere control. The validity of this model and usefulness for control strategy is confirmed from simulation results.