Simulation of Single-Phase Sinusoidal PWM Inverter with Performance Analysis

In this article, we explore the simulation of a single-phase sinusoidal PWM inverter. Specifically, we focus on analyzing the inverter's performance under different load conditions, including output waveform quality, efficiency, and reliability. The implementation typically involves generating carrier signals (triangular waves) and modulation signals (sine waves) using trigonometric functions or lookup tables, with comparison logic creating PWM pulses. We also examine the impact of various control strategies, such as unipolar and bipolar modulation techniques, and discuss methods for selecting optimal control strategies in different application environments. Through in-depth investigation of these aspects, we can better understand the working principles of PWM inverters, thereby providing valuable guidance for future inverter design and optimization. Key simulation considerations include implementing dead-time compensation to prevent shoot-through faults, using Fourier analysis for THD calculation, and designing LC filters to minimize harmonic distortion in the output waveform.