Three-Phase Bridge Rectifier Circuit with Hysteresis Control

The three-phase bridge rectifier circuit is a widely used power electronic device that converts alternating current (AC) to direct current (DC). This circuit configuration typically consists of six switching elements (either diodes or thyristors) arranged in a bridge topology, where the controlled switching of thyristors enables precise current rectification. The hysteresis control MATLAB/Simulink simulation approach provides a platform-based circuit modeling methodology where individual components are mathematically represented and simulated. This implementation allows comprehensive analysis and evaluation of circuit performance characteristics, including voltage/current waveforms, power quality, and dynamic response. Key implementation aspects include: - Modeling of power semiconductor devices (diodes/thyristors) using Simulink's Electrical Components library - Implementation of hysteresis current control algorithm for switching signal generation - Configuration of three-phase voltage source and passive components (inductors/capacitors) - Use of Powergui block for solving electrical circuits and performing FFT analysis - Simulation of gate drive pulses with adjustable hysteresis bandwidth parameters The simulation enables performance validation under various operating conditions, including different load types and control parameter variations, providing insights into harmonic distortion, efficiency metrics, and transient behavior.