Design and Simulation of the Rectifying Circuit of the Excitation System by MATLAB Author:Luo Xiang Instructor:Liu Dong (Shanghai Jiaotong University,Shanghai 200240,China) Abstract:This paper represents that the simulation model of three-phase bridge controlled rectifier circuit is constructed based on Matlab/Simulink.The relationship between output voltage and controlling angle and load characteristics are fully simulated and analyzed. According to the reality and intuition of simulation,we compare the Theristors rectified-b ridge with PWM rectified-bridge on output and application. Key words:excited system;rectifier circuit;Matlab/Simulink;simulationDesign and Simulation of the Rectifying Circuit of the Excitation System by MATLAB Author: Luo Xiang Instructor: Liu Dong （ Shanghai Jiaotong University，Shanghai 200240，China） Abstract：This paper represents that the simulation model of three-phase bridge controlled rectifier circuit is constructed based on Matlab/Simulink. The relationship between output voltage and controlling angle and load characteristics are fully simulated and analyzed. According to the reality and intuition of simulation, we compare the Theristors rectified-b ridge with PWM rectified-bridge on output and application. Key words：excited system; rectifier circuit; Matlab/Simulink; simulation