﻿ 基于曲线拟合的电缆故障点精确定位方法

# 基于曲线拟合的电缆故障点精确定位方法Accurate Positioning Method of Cable Fault Point Based on Curve Fitting

Abstract: Cable fault is one of the common fault types in power system. Based on the data of detected fault distance, determination of the of the cable fault point coordinate is very important for the cable fault repair work. In this paper, a 3D coordinate location method for cable fault point based on curve fitting is proposed. In the proposed method, the XY coordinates of the cable in the ground plane are fitted to the quadratic curve. The XZ coordinates of the cable are fitted to the linear curve on the depth of the buried depth. Based on the proposed method, a set of software for fault location of cable is developed. The application of the software can improve the accuracy of fault position finding and speed up the fault processing.

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