Three Phase Power Factor Correction

Eliminating harmonic pollution and improving power factor are the quite important task in the field of power electronics. In this paper three-phase power factor correction is focused on and the existing three-phase rectification topologies and control strategy are analyzed. Among these a three-phase Voltage-style PWM rectifier is selected, and voltage space vector PWM is employed. And its principle, mathematics models and the selection of control parameters are studied in details. In addition to, a fast algorithm for space vector PWM, the method of decomposition matrix proposed in this paper can simplify the calculation process and with which we may omit the triangular function tables.The 1KW three-phase HPF PWM rectifier profile is designed based on the digital signal processor TMS320F240. With MATLAB program, simulation of this profile has been done, and experimental wave forms verify this design.