MATLAB Simulation Study of Single-Phase Three-Level Inverter

In our research on single-phase three-level inverters, we developed a comprehensive MATLAB/Simulink simulation model that has been thoroughly debugged and validated. This inverter topology enables high-quality power conversion by efficiently transforming DC electrical energy into AC power. The simulation implements key algorithms including carrier-based PWM modulation with phase-shifted carriers to generate the three-level output waveform, and incorporates voltage balancing control for the DC-link capacitors. Our study extensively analyzes the inverter's operational principles, with particular focus on optimizing switching strategies to maximize efficiency and reliability. The simulation model includes subsystems for gate signal generation, dead-time compensation, and output filter design to minimize harmonic distortion. Experimental results demonstrate that this inverter configuration offers significant practical advantages, making it suitable for diverse applications in electronic devices and industrial systems where precise power conversion is critical.