Research on Automatic Fault Positioning Method of Multi-Branch Flexible Interconnected Distribution Network
The topology structure of flexible interconnected distribution networks is complex and the fault range is wide.In order to accurately capture fault information,a multi-branch flexible interconnected distribution network fault automatic positioning method is studied.Based on distributed traveling wave detection technology,fault lines in flexible interconnected distribution networks are determined.According to the propagation characteristics of traveling waves on different fault lines,the distance from the fault point to the detection point on the main line and branch line is calculated,and the automatic positioning of the fault section is completed.The results show that the fault distance measurement error under the design method is only 0.77%,which has a high positioning accuracy.
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