Multicarrier Space Vector Pulse Width Modulation for Enhanced Performance of Field Oriented Controlled Open End Winding Induction Motor

This paper presents the enhanced operation of a field-oriented controlled open-end winding induction motor (FOC-OEWIM) drive. In the enhanced operation, the number of levels in the phase voltages of two-level inverters used in the OEWIM is increased. By employing the multicarrier space vector pulse width modulation (SVPWM) additional levels will be obtained in the phase voltages of the OEWIM. Due to the increase in the number of levels in phase voltage, phase voltage total harmonic distortion (THD) also improves, and the motor parameters like stator phase currents and its THD, torque and flux ripples will also improve. An analysis using the switching function concept is also provided in the paper. Using the analytical analysis, the analytical waveforms of pole voltages, common-mode voltage, and phase voltages are obtained. The simulation results of MATLAB Simulink software are also presented in the paper to further justify the enhanced performance of a three-phase dual two-level inverter fed Field oriented controlled open-end winding induction motor (FOC-OEWIM) drive along with the switch function analysis. During the operation, OEWIM is operated at the rated speed, and a speed reversal operation is also performed. Stator flux trajectory is also presented in this paper.