Multilevel Inverter Simulation: MATLAB Modeling and Analysis

Multilevel inverters are crucial power electronic devices that convert DC power to AC power while maintaining high-quality output voltage and current waveforms. To facilitate advanced research and development of multilevel inverters, MATLAB simulation models provide an effective platform for comprehensive analysis. The simulation environment allows researchers to model various operating conditions, implement different modulation strategies (such as SPWM or SVPWM), and analyze key performance parameters including THD (Total Harmonic Distortion) and efficiency. Through iterative simulation runs, engineers can optimize control parameters, test fault conditions, and validate thermal management approaches. The model typically includes implementations of cascaded H-bridge, diode-clamped, or flying capacitor topologies with customizable level counts. Key MATLAB functions employed may include Simulink power electronics blocksets, PWM generator blocks, and FFT analysis tools for waveform quality assessment. This simulation framework serves as an invaluable tool for deeply understanding multilevel inverter operational principles, control methodologies, and performance characteristics under diverse operating scenarios.