电力架空线故障指示器接地定位算法设计  

Design of grounding location algorithm for power overhead line fault indicator

作　　者：葛锦锦 滕勇健 魏希文 GE Jinjin;TENG Yongjian;WEI Xiwen(State Grid Wuhu Power Supply Company,Wuhu 241000,China)

机构地区：[1]国网芜湖供电公司,安徽芜湖241000

出　　处：《电子设计工程》2023年第18期132-135,144,共5页Electronic Design Engineering

基　　金：国网公司科技项目(JL71-15-042)。

摘　　要：针对电力架空线路电流接地故障频发对电力供应稳定性造成严重威胁的现状,开展了电力架空线故障指示器接地定位算法的设计研究,分析了单相接地、三相短路、两相短路及两相接地短路等不同类型故障的指示器波形与故障识别方法。且在传统烟花算法的基础上引入混沌概念,提出了一种基于混沌烟花算法的故障定位算法,并将其应用于故障指示器设备采集数据的分析处理过程中。通过利用Sphere、Rosenbrock数值函数与IEEE33节点系统进行仿真分析,结果表明,所提算法在收敛速度、求解精度等方面具有更为理想的性能,能够对电力架空线路的电流接地故障类型进行实时检测,并实现对小电流接地故障的准确定位,进而保障电力系统的安全、稳定运行。Aiming at the current situation that current grounding faults of power overhead line occur frequently and pose a serious threat to the stability of power supply,the design and research of grounding location algorithm of power overhead line fault indicator is carried out,and analyzes the indicator waveforms and fault identification methods of different types of faults such as single⁃phase grounding,three⁃phase short circuit,two⁃phase short circuit and two⁃phase grounding short circuit.Based on the traditional fireworks algorithm and introducing the concept of chaos,a fault location algorithm based on chaotic fireworks algorithm is proposed and applied to the analysis and processing of data collected by fault indicator equipment.The simulation analysis is carried out by using Sphere,Rosenbrock numerical function and IEEE33 bus system.The test results show that the proposed algorithm has more ideal performance in convergence speed and solution accuracy.It can detect the current grounding fault type of power overhead line in real time,realize the accurate location of small current grounding fault,and ensure the safe and stable operation of power system.

关 键 词：故障指示器 混沌烟花算法 故障定位 电力架空线 电流接地 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置] TN99[自动化与计算机技术—控制科学与工程]