配电网管理系统中电网数据库的设计和优化

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

配电网管理系统是一个能对电网大量数据信息进行处理的综合系统,传统的数据处理方法已难以满足要求,必须借助于先进的数据库技术。在普通刀闸模型基础之上引入了"阻抗可变支路"模型,并为配电网络建立了与之相对应的ER模型(实体-关系模型),并依照该模型提出新的配电网数据库建库方法和优化方法,设计了对应的配电网数据库层次模型。

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.