MATLAB Implementation of PWM Rectifier

A PWM rectifier is a power electronic device used to convert power sources into required voltage and current forms. It employs both current and voltage control loops to regulate output, typically incorporating islanding detection functionality to ensure output immunity from external power source interference. The current control loop monitors output current and compares it with the reference current value to adjust PWM duty cycle through PI controllers. The voltage control loop monitors output voltage and compares it with the reference voltage to similarly modulate PWM signals. Islanding detection algorithms continuously monitor grid parameters to prevent the formation of unintentional islands, thereby ensuring system protection. PWM rectifiers have found extensive applications in wind power generation, solar energy systems, and power transmission systems. In MATLAB implementation, key functions include PWM signal generation using Compare blocks, control loop calculations with PID controllers, and real-time monitoring through measurement blocks for system protection.