A Study Of Power Quality Analysis On Power System With Distributed Generation

With the development of social and technological,and the depletion of traditional fossil resource,the Sources of new energy become a rising star,which cleaning,harmless,to a certain extent can replace traditional energy sources.Wind power and solar power as the representative of the proportion of clean energy in the new power system is increasing.large number of distributed generators(DG),which forms of using clean power,access Power System,which bring an impact on the power system power quality.This article describes the distributed generators,the power quality,and the impacts on distributed generators access.And illustrate the beneficial effects and adverse on power quality of the power system effects after DG access.According to the structural characteristics of network topology,and show the influence of access to distributed power system power quality produced by: deviation of voltage;distortion on harmonic,fluctuation on voltage fluctuation.And according to the conventional power quality characteristics,influencing mechanism was to do analysis on the new issues raised,given the new changes in indicators of power quality and system impacts.Then,Select wind power and photovoltaic power generation distributed power for the study,build the platform.After the Distributed power access power system,Changes distributed power access locations and power output,Analyzed under different conditions DG access and influence changes of power system power quality produce in the simulation.Further guidance access node location and capacity aspects of the application.Finally,this paper further proposed a distributed power grid power quality impact of the measure,complete power quality evaluation of the influence that can guide how to take measures to reduce its impact on the system and network power quality.Guide distributed power grid positions of the nodes and capacity aspects of the application.