Hybrid space vector pulse width modulation voltage source inverter-a review

The latest trend in modern industrial application is the use of variable voltage supply to the AC drives from a three phase voltage source inverter (VSI). Different types of Pulse Width Modulation (PWM) scheme are used to modulate output voltage of VSI. The most commonly used PWM schemes for three-phase VSI are carrier-based sinusoidal PWM and Hybrid Space Vector PWM (HSVPWM). Researchers adequately prefer the use of HSVPWM because of their easier digital realization and better dc bus utilization. The advantages of HSVPWM are reduction of total harmonic distortion, improvement in output voltage and reduction of torque ripple in induction motor drives. This paper provides a comprehensive literature review on different topologies of HSVPWM. These includes Advanced Bus Clamped SVPWM (ABCSVPWM), Neutral Point Clamped SVPWM (NPCSVPWM) and Diode Clamped SVPWM (DCSVPWM).