Research On Impacts Of Distribution Network Due To Distributed Generation Embedded

With energy crisis and environmental issues becoming more and more serious,the development and use of new energy have become focus of the world.And the Distributed Generation has increased rapidly for the past few years,which more and more applied to the practice.However,the increasing amount of distributed generation is being accessed to the distribution grid,which will change the structure of traditional distribution network.Moreover,distributed generation will have important influence on power flow and voltage distribution.So it has important practical significance to understand the characteristics and operation mode of the distributed power supply,and to analyze the impact of the access to the distribution network.Based on the current development of the world,this paper studies the impact of distributed generation access to the power distribution network.Frist of all,we need understand the current research in this field at home and broad.Then on the base of these,this paper established the main research content.Secondly,this paper introduces and analyzes the power flow of distribution network with distributed generation,and introduces the IEEE33 node simulation distribution system used in this paper;Then,present the principle,development status and so on of distributed photovoltaic and wind power generation.And by using the simulation software IPSA and programming language Python used in this paper,built the model of distributed generation and simulate and analyzed the power flow of the distribution network with distributed generation.And finally,the method of selecting the siting,location and the type selection of the distributed power distribution system is obtained.At last,via the simulation software IPSA and programming language Python,constructed the simulation example,setting three cases which including minimum distribution system load and maximum distribution generation output,maximum distribution system load and minimum distribution generation output,maximum distribution system load and maximum distribution generation output to analyze influence of distribution generation access to distribution network bring.Finally,it shows that the method and the model are effective and feasible.