Performance and Analysis of Asynchronous Motor with Space Vector and Sinusoidal Pulse Width Modulation Techniques

AC drives are commonly used in industries in many applications. Voltage and frequency can be varied with AC drives. DC voltage can be applied to the input of the inverter and it changes into AC voltage of essential voltage and frequency but there are certain limitations of total harmonic distortion and DC utilization. For improvement of voltage and current quality, pulse width modulation techniques are implemented. Sinusoidal pulse width modulation procedure is most mutual and very easy method for implementation but it has higher total harmonics distortion, lower DC utilization factor and incapable of over-modulation compared to other techniques. Space vector pulse width modulation technique has better output voltage and current quality. It has lower total harmonics distortion and higher DC utilization factor. In this paper, SPWM and SVPWM methods simulated and these two methods are implemented to an asynchronous machine connected with voltage source inverter and analyzed the performance. Voltage and current THD are shown. The simulation work is done in MATLAB / Simulink.