A Study On Effection And Admittance Capacity Of Distributed Generation Connected To Power Grid

With the development of science and technology, environmental issues become increasingly prominent, the use of new energy alternative to traditional energy generation has become an inevitable trend in the development of the power sector. Distributed generation technologies take advantage of renewable energy generation, low power cost, environment-friendly, distributed power will be widely used. At the same time, distributed power grid running radial distribution network characteristics change will have an impact on the distribution network operation mode, voltage distribution, protection, stability and security and other issues.This paper introduces the research background and significance of the subject, a comprehensive analysis of the research status of distributed power access and access to the distribution network capacity calculations. On this basis, introduces the concept of distributed power and distributed power in different ways to classify, and a mathematical model of wind power and photovoltaic power generation as the representative of the different types of distributed power. Describes the characteristics of the distribution network as well as an important component in the power system in which the position to explore the impact of distributed power distribution network brings access and analyze the measures to eliminate the impact. Combined with the safety evaluation index grid access capacity calculation model established different numbers of distributed power grid.Finally, through a single distributed power grid, and a number of distributed power grid as example, to verify the validity of the distributed power and network access capacity calculation model, and distributed power draw Best access network capacity, a large number of future distributed power grid to provide strong support.