ISSN (Print) : 2320 – 3765 ISSN (Online): 2278 – 8875 International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering (An ISO 3297: 2007 Certified Organization) Vol. 3, I ssue 6, June 2014 Copyright to IJAREEIE www.ijareeie.com 10081 Performance Analysis of Three Phase Voltage Source Inverter Fed Induction Motor Drive with Possible Switching Sequence Execution in SVPWM S. Manivannan, S. Veerakumar, P. Karuppusamy, A. Nandhakumar Assistant Professor, Bannari Amman Institute of Technology, Erode, Tamilnadu, India ABSTRACT: 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 and the performance of three phase induction motor in each switching sequences. Here there are four possible switching sequences are compiled and analyzed the performance of three phase inverter fed induction motor 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 fed induction motor by various parameter measurements. The simulation results are provided to validate the proposed model approaches. KEYWORDS: Space vector Pulse width Modulation (SVPWM), Three Phase Inverter, Total Harmonic Distortion (THD), Switching Stress. I. INTRODUCTION Three phase voltage source inverters are widely used in variable speed AC motor drive applications since they provide variable voltage and variable frequency output through pulse width modulation control [1] [2]. The most widely used PWM method is the carrier-based sine-triangle PWM method due to simple implementation in both analog and digital realization [2] [3]. However in this method the DC bus utilization is low (0.5V dc ). This has led to the investigation into other techniques with an objective of improving in the DC bus utilization [1] [3]. The PWM technique termed as Space Vector PWM based on space vector theory was proposed by de Broeck et.al (1988) and Ogasawara et.al (1989) which offers superior performance compared to the carrier –based sine-triangle PWM technique I terms of higher DC bus utilization and better harmonics performance [3]. Further, this technique offers easier digital realization. The research in PWM schemes has intensified in the last few decades. The main aim of any modulation technique is to obtain a variable output with a maximum fundamental component and minimum harmonics [3] [4]. The problem of underutilization of the DC bus voltage led to the development of the Third order harmonic-injection PWM (THIPWM) and Space Vector PWM (SVPWM) [5] [6]. In 1975, Buja developed this improved sinusoidal PWM technique which added a third –order harmonic content in the sinusoidal reference signal leading to a 15.5% increase in the utilization rate of the DC bus voltage. In 1988, Van Der Broeck developed the SVPWM technique which has also increased the