Performance Analysis of VSI-fed Single-phase Induction Motor using Fixed Pulse Width Modulation Techniques

Abstract

This paper gives an insight into the operation of single-phase induction motor or asynchronous motor (ASM) using a single-phase Voltage Source Inverter (VSI). The operation of VSI is explained in different modes. The fixed pulse width modulation (PWM) methods of a single-phase full-bridge inverter are presented comprehensively. The performance of the circuit is estimated from the output voltage and current waveforms. The steady-state and dynamic response of the ASM in different PWM methods is observed. The spectral performance of the modulation methods is also taken into consideration to highlight the merits and demerits of each method. MATLAB/Simulink software has been used to obtain the output results and Fast Fourier Transform (FFT) analysis.