Analysis and design of hysteresis current controlled multilevel inverter fed PMSM drive

This paper deals with the modeling and analysis of multilevel inverter fed PMSM (Permanent Magnet Synchronous Motor) drive. The concept of hysteresis is applies to produce the controlled switching pulses to multilevel inverter and the concept of vector control is applied in PMSM to obtain linear dynamics similar to DC motor. The five level cascaded inverter fed PMSM drives are developed in MATLAB/SIMULINK environment using simpower system toolboxes. The performance of the proposed drive system is obtained under various operating conditions.