Z-Source Inverter Simulation Model

Z-source inverters exhibit the unique characteristic where input voltage and current fluctuate continuously while maintaining stable output voltage and current. To comprehensively analyze this phenomenon, we developed a simulation model incorporating the complete Z-source inverter circuit topology with detailed component parameters including capacitors, inductors, and switching devices. The model implementation involves defining circuit equations using state-space modeling techniques and simulating dynamic responses through numerical integration methods like Runge-Kutta. Key functions include parameter initialization for passive components, switching logic implementation for semiconductor devices, and real-time waveform monitoring for both input and output stages. Through this simulation, we can observe shoot-through states management, impedance network behavior, and voltage boost capabilities, providing deeper insights into Z-source inverter operational principles and their practical applications in power conversion systems.