复杂拓扑电力线故障信道建模方法

现有电力线故障信道研究主要致力于单根线缆的软故障、硬故障、擦伤故障,对于复杂拓扑下的电力线故障信道建模研究基本还处于空白.针对不同的拓扑结构、电力线种类、故障类型,需要通过一种行之有效的方法将电力线传输特性、拓扑结构节点分布特性、故障特性串接成方便计算机处理的有机整体.基于图论知识实现任意复杂拓扑结构的电力线故障信道响...

Modeling method for fault channel of power line with complex topology

The existing power line fault channel research is mainly dedicated to the soft fault, hard fault and scratch fault of a single cable. The research on power line fault channel modeling under complex topology is basically blank. According to different topologies, power line types, and fault types, an effective method is needed to connect the power line transmission characteristics, topology distribution node distribution characteristics, and fault characteristics into an organic whole that is convenient for computer calculation. This paper is based on the knowledge of graph theory to realize the power line fault channel response method of any complex topology. That is, the length matrix is used to determine the main path, and then the breadth-first search algorithm is used to control the impedance update of the branch topology, and the cascade M matrix of the two-port network model is used to generate the frequency response of the power line fault channel of any complex topology. The comparison between simulation and test results proves that this method is feasible to obtain faulty channels.