Evaluation Of Losses In Voltage Source Inverter Using PWM Techniques Fed With Induction Motor Drive

The performance evaluation of Voltage Source Inverter (VSI) in an induction motor drive is critical for assessing the efficiency and effectiveness of the system. This abstract focuses on the performance evaluation of VSI based on two popular Pulse Width Modulation (PWM) techniques, namely Sinusoidal Pulse Width Modulation (SPWM) and Space Vector Pulse Width Modulation (SVPWM), and provides insights into which technique is better suited for induction motor drives. PWM techniques are used in VSIs to control the output voltage and frequency by adjusting the pulse widths of the switching devices. SPWM generates a series of sinusoidal pulses with varying widths to synthesize the desired output voltage waveform. On the other hand, SVPWM divides the voltage space vector into smaller vectors and dynamically adjusts the duty cycles of the switching devices to approximate the desired output voltage vector. The performance evaluation of VSI in an induction motor drive can be assessed by comparing different PWM techniques such as SPWM and SVPWM. While SPWM is simpler to implement and offers smoother output waveforms, SVPWM provides better voltage utilization and lower harmonic distortion. SVPWM technique have better efficiency than SPWM technique.