An Innovative Sinusoidal Pulse Width Modulation Technique

This document introduces a Simulink model implementing an innovative sinusoidal pulse width modulation (SPWM) technique specifically designed for Unified Power Quality Conditioner (UPQC) systems. The model incorporates advanced modulation algorithms that generate precise gate signals for power converters using carrier-based comparison methods with sinusoidal reference waves. Key functional blocks include reference signal generation, carrier waveform configuration, and PWM pulse computation modules to demonstrate real-time switching pattern optimization. The primary objective of this simulation is to validate the performance of the proposed SPWM technique under various power quality scenarios, including voltage sags, swells, and harmonic distortions. The model architecture employs MATLAB Function blocks for algorithm customization and Simscape Power Systems components for accurate power circuit representation. Through detailed waveform analysis and THD (Total Harmonic Distortion) measurements, users can evaluate the technique's effectiveness in mitigating voltage/current disturbances and improving overall power quality. Designed for academic and research purposes, this comprehensive model provides practical insights into modulation parameter tuning, switching frequency optimization, and closed-loop control implementation. Researchers and students can modify algorithm parameters through masked subsystems and observe real-time impacts on system performance, making it an invaluable educational tool for power electronics and power quality enhancement studies.