应用无线传感器网络快速定位矿井配电网故障的方法

矿井配电网处于供电网末端,是单端供电系统.针对以上特点,提出了一种应用无线传感器网络的实时在线故障定位方法.该方法利用无线节点的多跳传输行波信号,通过行波的方向和节点的位置迅速判断故障区间.根据该方案设计了由无线传感器节点、无线网关和故障处理系统等组成的故障定位系统,并针对转角和接头给出了节点摆放的一致性原则;给出了利用定向天线和增设转角处节点等有利于无线电波在矿井下传输的措施和网状-线性混合拓扑结构.

An Approach to Fault Location of Mine Distribution Network Using Wireless Sensor Networks

The mine distribution network is located at the end of power network and is one-terminal power network. Aiming at the attributes above, a new real-time and on-line method using wireless sensor networks is presented in this paper. Signals are transferred to sink nodes by multi-hop routing protocols and the fault points can be judged through the direction of traveling wave and the position of nodes. Based on this method, a fault location system, which is composed of wireless sensor nodes, wireless gateway and fault manage system, is designed and the consistency principle of corners and joints is put forward. Some measurement methods using directional antenna and special adding nodes in the corners etc are proposed to improve the transmission efficiency of radio in the coal mine tunnels and a mesh-lineal mixture topology is also presented at the end of this paper.