Research On Load Compensation Strategy Of Three-Phase Unbalanced In Distribution Network Based On APF

With the increasing percentage of load unbalance in the distribution network, the problem of the three-phase load unbalance in distribution network is becoming serious and serious, which caused great harm in the quality of electric.To improve the three-phase voltage distribution network imbalance, power factor and reduce the harmonic, this paper based on the APE load compensation technology. We analysis the strategy of the unbalanced load based on Three-phase three wire and three wire four wire.This paper briefly introduces the origin and the three-phase unbalanced calculation,analysis the unbalanced three-phase harm on distribution network from two aspects of economy and reliability of distribution network operation, summarizes the current status of research on suppression method of the three-phase unbalance and load compensation device at home and abroad, establish the mathematical model of APF three-phase three wire and three-phase four wire system.Based on lots of theoretical analysis, this paper built the APF unbalanced load compensation simulation model to verify the feasibility and validity of the unbalanced load compensation method based on Matlab/Simulink. The simulation results show that the studied in this paper based on APF distribution three-phase unbalanced load compensation strategy can effectively improve the distribution network with three-phase load unbalanced condition,improve power factor and reduce harmonic, which achieve the desired effect.