零序特征量的配电网接地故障区段定位策略研究

Research on Location Strategy of Distribution Network Grounding Fault Section Based on Zero Sequence Characteristic Quantity

在我国经济社会快速发展的背景下,随着人们生活水平的不断提升,对于电力资源的使用需求也在不断增大,越来越高的电网负荷导致电力系统受到了挑战。基于此,为加强配电网运行的安全保障,确保电力企业能够实现稳定供电,结合零序特征量来分析配电网接地故障区段中的定位策略。分析中性点非直接接地系统线路出现的单相接地故障,以零序电流特征的接地故障区段定位策略为导向,通过仿真实验的方式来验证其有效性。

Under the background of rapid economic and social development,with the continuous improvement of people's living standards,the demand for the use of electric power resources is also increasing,and more and more high grid load causes the power system to be challenged.Based on this,in order to strengthen the safety guarantee of distribution network operation and ensure that power enterprises can achieve stable power supply,the zero sequence characteristic quantity is combined to analyze the positioning strategy of distribution network grounding fault section.This paper analyzes the single-phase grounding fault of the neutral non-direct grounding system line,guided by the zero sequence current characteristic grounding fault section location strategy,and verifies its effectiveness through simulation experiments.