The Impact of Large Scale Distributed Generation Grid-Connection on Structure of Electric Power Network

At present, the research of distributed power grid has made breakthroughs, and the proportion of power production is also increasing. The wide application of distributed grid will have a great impact on the traditional power system, including power quality, system reliability, and relay protection and so on. Therefore, by studying the influence of distributed grid on power quality of distribution network, we can better guide how to give full play to the advantages of the distributed grid, such as distribution network loss, grid dispatch, system protection, reliability, power market and so on. In view of the disadvantageous influence of the parallel operation of distributed generators on the local power system, appropriate measures can be taken to better develop distributed generators, so as to adjust the energy structure of our country and realize sustainable development. Therefore, it is of great significance to study the influence of distributed power network on the power quality of the distribution network.