通用矩阵算法和区域辨识法电力故障定位计算

General Matrix Algorithm and Incident Region Method Based Fault Location Analysis

为了提高供电的可靠性,当配电网出现故障时,必须快速确定故障区段。文中总结归类电网事故起因,提出事故区域划分方法,分析了电力系统故障定位的两种典型算法,比较分析通用矩阵算法和区域辨识算法应用在故障定位时的优缺点,并提出改进算法,分别采用通用矩阵算法和改进算法对某地区实际电网进行模型分析和验证。最后通过短路电流计算验证了算法的正确性,为电网故障定位提供了参考建议。

In order to improve the reliability of electricity supply,when there is a fault in the distribution network,it is important to identify fault section quickly.In this paper,the causes of the incident of power system are classified,the incident region method is proposed,two typical algorithms for fault location of power system are analyzed,the advantages and disadvantages of general matrix algorithm and the region identification algorithm used in fault location are comparatively analyzed,and a improved algorithm is proposed.General matrix algorithm and improved algorithm are respectively adopted in a certain area of the actual power grid,used for analysis and verification model.Finally,short-circuit current is calculated to verify the correctness of the algorithm,providing a reference for fault location of power system.This project is supported by Special project of Shanghai Science and Technology Commission.