配电网快速开关型消除弧光接地故障技术研究  

Arc Suppression Technology Based on Fast Switch for Distribution Network

作　　者：艾绍贵[1] 李秀广[1] 黎炜[2] 周姣[3] 陈小月[3] 文习山[3] AI Shaogui LI Xiuguang LI Wei ZHOU Jiao CHEN Xiaoyue WEN Xishan(Ningxia Electric Power Research Institute, Yinchuan 750002, China Ningxia Electric Power Company, Yinchuan 750001, China School of Electrical Engineering, Wuhan University, Wuhan 430072, China)

机构地区：[1]国网宁夏电力公司电力科学研究院,银川750002 [2]国网宁夏电力公司,银川750001 [3]武汉大学电气工程学院,武汉430072

出　　处：《高压电器》2017年第3期178-184,共7页High Voltage Apparatus

摘　　要：随着配电网中越来越多的使用固体绝缘的电缆线路,传统中性点经消弧线圈接地的灭弧措施暴露出诸多问题,已不能满足电网安全稳定运行的要求。文中研究了一种快速开关型消除弧光接地故障(简称消弧)技术,介绍了该技术相对于传统消弧线圈的优点,对其消弧原理以及相应的故障判别、故障选相、故障选线等环节进行研究,提出了快速开关型消弧装置的动作流程,并通过仿真分析验证了快速开关型消弧技术原理的可行性和动作流程的合理性。结果说明快速开关型消弧技术在理论上可以达到快速消除电弧接地故障的目的,有助于提高配电系统的供电可靠性。The traditional arc suppression method by grounding neutral point through arc suppression coil cannot meet the requirement of safe and stable operation for the power distribution network with solid insulated cables. In this paper, a technology for eliminating the are grounding fault （arc-suppression, for short）based on fast switch is proposed, and the advantages of this technology are introduced. The principle of arc suppression and the corresponding fault identification, fault phase selection and fault line selection are discussed, and the action process of the arc-suppression device is described. Simulation verifies the feasibility of the arc suppression principle and the rationality of the action flow of the device. It is concluded that this arc suppression technology based on fast switch can quickly eliminate the arc grounding fault in theory and help improve the reliability of the distribution network.

关 键 词：配电网 快速开关 消弧 单相接地故障 故障判别 故障选相 故障选线 

分 类 号：TM862[电气工程—高电压与绝缘技术] TM75