Performance Analysis of Two-Level Space Vector Pulse Width Modulated Three Phase Voltage Source Inverters In All Possible Switching Sequences

The Space Vector Pulse Width Modulation (SVPWM) Technique has become one of the important PWM techniques for Three Phase Voltage Source Inverter (VSI) for the control of AC Induction Motors and Permanent magnet Synchronous Motors. The study of SVPWM technique reveals that space vector modulation technique utilizes DC bus voltage more efficiently and generates less harmonic distortion when compared to sinusoidal PWM technique. In this paper deals with the study of two-level SVPWM technique in all possible combinations of switching sequences. Here there are four possible switching sequences are compiled and analyzed the performance of three phase inverter in each switching sequences present in SVPWM. The analysis is made by using MATLAB/SIMULINK software and its performance was analyzed by its various parametric measures. The performance parameters to be considered in all four possible switching sequence presents in SVPWM are DC bus utilization, Total Harmonics Distortion (THD), Switching Stress, Efficiency of the Inverter, Variations in the load voltage and current. The simulation studies reveal that the best switching sequence presents in SVPWM provides better performance to the three phase inverter by various parameter measurements. The simulation results are provided to validate the proposed model approaches.