摘要
为了将应用于输电线路中的D型行波测距原理应用于辐射状结构的配电线路,通过对配电线路的行波模量特性进行分析,表明该型行波测距原理在理论上适合于配电线路。根据配电线路的暂态行波特性及其线路拓扑结构特征,提出利用非故障线路上的行波信号来代替故障线路的行波信号作为测量信号进行故障测距,并结合选线技术,构建主、辅测距系统,以降低传统双端行波测距配置在辐射状配电线路上应用所带来的投资及维护成本。仿真结果表明该方法具有较高的可行性,有一定的工程实践意义。
In order to apply D-type traveling wave theory in transmission lines to radial distribution lines, traveling wave modulus characteristics of the distribution lines was studied, and obtained the result that traveling wave principle is theoretically suitable to the distribution lines. According to the features of the transient traveling waves and network topology of the distribution wires, the wave signal of non-fault line instead of fault line as the measuring signal of fault location was proposed. Combined with line selection techniques, main and auxiliary ranging system was built, which can greatly reduce investment and maintenance costs of traditional twoterminal traveling wave fault location configuration for radial distribution wires. Simulation results show that the method has a higher feasibility and is some valuable for engineering practice.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2012年第5期138-143,共6页
Proceedings of the CSU-EPSA
关键词
辐射状配电线路
初始行波
故障选线
D型行波
故障测距
radial distribution wires
original traveling waves
line selection
D-type traveling wave
fault location
