Priya Kumar
Independent Researcher
India
Abstract
This manuscript presents a comprehensive analysis of pulse-width modulation (PWM) inverter control techniques for motor drives as of 2018. The study evaluates the evolution of space vector PWM, selective harmonic elimination PWM, carrier-based sinusoidal PWM, and predictive current control methods. Comparative performance metrics—including total harmonic distortion (THD), torque ripple, switching losses, and dynamic response—are examined. A literature review table summarizes key findings up to 2018. Statistical analysis quantifies performance improvements across techniques. Five research objectives guide the methodological approach, which employs simulation in MATLAB/Simulink and experimental validation on a three-phase induction motor. Results demonstrate that optimized space vector PWM achieves the lowest THD and torque ripple, while predictive current control offers superior dynamic response at the expense of higher computational complexity. Conclusions highlight trade-offs among techniques and recommend future research directions for real-time implementation and fault-tolerant control. The study’s scope is confined to pre-2018 technologies to ensure historical alignment.
Keywords
PWM inverter control; motor drives; space vector PWM; selective harmonic elimination; torque ripple
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