IGBT Inverter Hardware Circuit and SPWM Program Implementation

This MATLAB Simulink-based implementation features an IGBT (Insulated Gate Bipolar Transistor) inverter hardware circuit and SPWM (Sinusoidal Pulse Width Modulation) program designed for precise control of current and voltage in power systems. The simulation model utilizes IGBTs as fundamental power semiconductor devices capable of handling high-voltage and high-current switching operations. The inverter circuit topology implements DC-to-AC conversion through strategically arranged IGBT switching modules. The SPWM algorithm employs carrier-based modulation techniques where a high-frequency triangular carrier wave is compared with a sinusoidal reference signal to generate variable-width pulses. Key implementation aspects include: - Modulation index control for amplitude regulation - Frequency scaling through reference signal adjustment - Dead-time compensation circuits to prevent shoot-through conditions - Gate driver interfaces ensuring proper IGBT switching characteristics This comprehensive model demonstrates real-time pulse generation, harmonic analysis capabilities, and closed-loop control implementations for achieving precise output waveform control in power electronic systems.