Comparative Analysis of Harmonic Reduction of VSI Fed Induction Motor Using SVPWM and Sinusoidal PWM

Abstract

The quality of power has deteriorated due to increasing practice of electronic gadgets which are responsible for generating harmonic currents and reactive power. To overcome this issue we can use PWM technique, especially Space Vector Modulated PWM (SVPWM) since it manages to produce high voltages accompanied with less total harmonic distortion as well as toils splendidly field oriented structures to achieve motor control. Sinusoidal PWM also exhibits similar results as that of SVPWM. The emphasis of the thesis has been laid on induction motor on which the two methods of harmonic elimination technique has been executed - SVPWM and sinusoidal PWM and to compare the amount of harmonics suppressed by both techniques and improve the SVPWM technique using closed loop control.