Design and Optimization of Power System Database in Management System of Distribution Network

Management system of distribution network is an integrated system which can deal with mass data information in power system.However,the traditional data processing methods cannot meet requirements,so it have to by means of advanced database technology.The "variable impedance branches" model based on the ordinary blade model is introduced,build corresponding ER model(Entity-Relationship model)for the distribution network,according to the ER model,new construction method and optimization method and design corresponding hierarchical model are proposed for distribution network database.