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Isha Jha
Independent Researcher
India
Abstract
This manuscript presents a comprehensive study on the performance evaluation of pulse-width modulation (PWM) techniques applied to inverter-fed three-phase induction motors. Four widely used PWM schemes—Sinusoidal PWM (SPWM), Third-Harmonic Injected PWM (THIPWM), Space-Vector PWM (SVPWM), and Selective Harmonic Elimination PWM (SHE-PWM)—are modelled and simulated using MATLAB/Simulink. Key performance metrics, including torque ripple, total harmonic distortion (THD) of the stator currents, voltage utilization, and switching losses, are quantified. A statistical analysis table summarizes comparative results, highlighting trade-offs among techniques. Simulation studies validate theoretical predictions and demonstrate that SVPWM offers the best compromise between low THD and high voltage utilization, whereas SHE-PWM excels in harmonic minimization at the cost of increased computational effort. The findings guide selection of PWM strategies for industrial drive applications constrained to technologies available up to 2013.
Keywords
Sinusoidal PWM, Third-Harmonic PWM, Space-Vector PWM, Selective Harmonic Elimination, Induction Motor Drives
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