Comprehensive Research and Judgment Method of Distribution System Emergency Repair Plan Based on Graph Model
Aiming at the problem that there are abnormal values in the basic data of fault location,resulting in long time and low accuracy of fault location,a comprehensive research and judgment method of distribution system emergency repair plan based on graph model is proposed.The statistics are used to test the difference between normal samples and measured samples of e-mergency repair data.The cluster sample data are multiple clusters,and the data with the largest difference from the cluster center are taken as the abnormal value.After filtering,a modified data set is obtained.According to the trip switch and other data,the fault category of distribution system is comprehensively studied and judged,and the switching value information of different categories is calculated,the interval where the information changes is treated as the fault area,the fault point is loca-ted according to the equipment current information entropy in the area,and is marked on the fault propagation diagram model,and the comprehensive research and judgment results of the emergency repair plan are visually displayed.Taking the actual dis-tribution system emergency repair plan in an area as an example,the example test is carried out.The plan includes the fault categories of main line outage,branch line outage,station area outage and single household outage.The test results show that this method shortens the fault diagnosis and positioning time,improves the fault diagnosis and positioning accuracy,and the feedback of distribution system emergency repair plan is timelier and more reliable.
graph modeldistribution systememergency repair plancomprehensive research and judgmentfault typepoint of failure
万方数据
维普
