基于负荷介数的配电网电气连通性检测试验研究

Experimental Study on Electrical Connectivity of Distribution Network Based on Load Dielectric

在10 kV以上的高压配电网电气连通性检测中,负荷介数有较好的指标意义,并且介入性较小。通过运算高压配电网内各节点的加权介数与节点结构关键度,获得各节点的负荷介数,依据各节点负荷介数辨识出配电网内的关键节点;通过对配电网网络拓扑图的描述数据结构实施更改,设计针对拓扑图的连通性算法,采用此算法检测负荷介数,辨识出高压配电网内关键节点的电气连通性。试验研究结果表明,该方法可辨识出高压配电网内关键节点,且辨识结果准确可靠,能够针对辨识出的关键节点实施连通性检测,且具有较高的检测速度与精度,检测性能优越。

The load dielectric has better index significance and less intervention in the electrical connectivity detection of high-voltage distribution network when it is above 10 kV.By calculating the weighted medium number and node structure criticality of each node in the high-voltage distribution network,the load medium number of each node is obtained,and the key nodes in the distribution network are identified according to the load medium number of each node.By changing the description data structure of the distribution network topology map,a connectivity algorithm for the topology map is designed.This algorithm is used to detect the load medium and identify the electrical connectivity of key nodes in the high-voltage distribution network.The experimental results show that this method can identify the key nodes in the high-voltage distribution network,and the identification results are accurate and reliable.It can detect the connectivity of the identified key nodes,and has high detection speed and accuracy,and superior detection performance.