Construction and Matching Analysis of the Power Block Contact Model of Distribution Network

Graph theory is introduced into the contact structure of power supply block which is based on topological connection between substations. According to the basic principles of constructing power block contact models, four typical power block contact models with any number of interconnected substations are constructed. On this basis, the structural characteristic indexes of power block contact models are defined and the corresponding calculation methods are given. Then, specific needs for power block contact models made by various power supply areas together with methods of matching and recognition theory are respectively considered and used for matching analysis of area types against contact models. This provides a theoretical basis for different areas to choose appropriate contact models. The proposed constructed models and methods of matching analysis will help to improve the regularity, rationality and scientificity of the construction and planning of distribution network.