Research On The Mathematical Model And Control Strategy Of High Power Factor Rectifier

In power electronic power conversion devices, high power factor rectifier has been extensively studied and applied because of its less harmonics and high power factor. This article discusses the mathematical model in detail of the three-phase voltage rectifier in abc,αβand dq coordinate.Moreover,space voltage vector control strategy and direct power control strategy has been studied systemly. In this article, the simulation results have been built by using Matlab's Simulink simulation software. The corresponding simulation model agrees well with the theoretical analysis.This article is innovation in the theory of direct power strategy divided power switches table into two, parts making the system start-up performance greatly improved. The corresponding simulation model was also built by using Matlab and Simulink. the simulation results obtained prove the correctness of the theory analysis. Finally, the direct power control system, especially the main circuit design parameters, was given, and simulated. The results were in line with the expected ones, proving the correctness of the control strategy.