Performance Analysis of VSI-fed Single-Phase Induction Motor Drive Using Variable and Multi Pulse-Width Modulation Techniques

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 variable-multi pulse width modulation (PWM) methods of a single-phase full-bridge inverter are presented comprehensively. The performance of the circuit and the ASM are estimated from the output voltage and current waveforms. The steady-state and dynamic response of the ASM in different PWM methods is also 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.