Field Oriented Control of IPMSM using diode-clamped multilevel inverter

This paper presents a Field Oriented Control of Interior Permanent Magnet Synchronous Motor (IPMSM) using three-level and five-level diode-clamped inverter. Field Oriented Control is a basic method in which real-time control of torque variations, rotor mechanical speed and phase currents can be possible. It controls the direct and quadrature axis currents to achieve required torque. The inverter switching pulses are generated using effective space vector pulse width modulation technique known as Centre Spaced Space Vector Pulse Width Modulation (CSSVPWM). This modulation technique is a simple and easy method to generate pulses similar to Space Vector Pulse Width Modulation (SVPWM) using the concept of effective time which reduces the complexity involved in calculation of angle and sector. The inverter output voltage can be directly synthesized by the effective times and the voltage modulation task can be greatly simplified. Three-level and Five-level diode-clamped inverter fed IPMSM analysis is done in MATLAB/SIMULINK.