The Impact Study Of Distribution Generation Access To Distribution Grid And Active Management Technology

Due to the excellent features Distributed Generation (DG) of clean energy technologies, DG can solve the problems of current environmental and energy crisis. With wind energy, solar power and fuel cells as the representative of clean distributed generation technology matures and popularity, there will be more distributed power accessed to distribution grid operation in the near future. Therefore, it is necessary to describe and analyze the characteristics of DG, distribution grid and the process of accessing the DG to the distributed grid. It is also necessary to study the network management technology in order to access DG.First, the definitions and concepts of distributed generation, the active management technology concepts and meaning are described in this work. Then, the development and research of DG and active management technology are also be analyzed.Secondly, relationship between distributed generation and distribution network has been analyzed. In an IEEE34 simulation system, the distribution network system voltage distribution, network losses and the influence with distribution accessing have been simulated and analyzed in the signal and multiple distribution generation with different access capacity and location.Then, the key technical concepts Active Management technology has been described. And the management, control strategies and components for distributed generation accessing to the distribution network are proposed.Then,take the Baran&Wu 33 simulation system as an example,using Active Management technology analyzes simulation data of distribution network.Finally, the work studied is summarized in this paper, and the direction of future research work is also pointed out.