Fault Location Method for Distribution Network Based on Edge Computing and Wide Area Synchronous Measurement Technology

doi:10.11985/2020.01.012

Abstract

Abstract:

Aiming at the shortcomings of the existing single phase ground fault location technology in the distribution network, a new fault location method is proposed with the help of edge computing and wide-area synchronous measurement technology. First, based on the characteristics of single phase grounding, the two key technical principles and device design requirements of wide area synchronous wave recording and distribution network bus edge calculation are discussed. Then, a cosine similarity and Tonimoto coefficient algorithm model is established by the similarity measurement algorithm, and a new method for locating fault sections is proposed. Finally, based on the engineering application of the single phase grounding intelligent positioning system, it is verified that the positioning method is realistic and feasible in actual distribution network operation with high accuracy.

Key words: Edge computing, wide area synchronous measurement, fault location, similarity measure

CLC Number:

TIAN Peng,QIN He,HOU Naiqian,LIU Zhiqiang. Fault Location Method for Distribution Network Based on Edge Computing and Wide Area Synchronous Measurement Technology[J]. Journal of Electrical Engineering, 2020, 15(1): 83-88.

Figures/Tables 8

References 10

[1]	贾清泉 . 非有效接地电网选线保护技术[M]. 北京: 国防工业出版社, 2007.
[2]	孙镇华, 侯义明 . 单相接地故障指示器检测原理分析[J]. 供用电, 2004(5):30-32.
	Sun Zhenhua, Hou Yiming . Analysis of single phase ground fault indicator detection principle[J]. Distribution & Utilization, 2004(5):30-32.
[3]	王兴念, 张维, 许光 , 等. 基于配电自动化主站的单相接地故障定位系统设计与应用[J]. 电力系统保护与控制, 2018,46(21):160-167.
	Wang Xingnian, Zhang Wei, Xu Guang , et al. Design and application about single phase grounding fault location system based on distribution automation master station[J]. Power System Protection and Control, 2018,46(21):160-167.
[4]	王雪文, 石访, 张恒旭 , 等. 基于暂态能量的小电流接地系统单相接地故障区段定位方法[J]. 电网技术, 2019,43(3):76-83.
	Wang Xuewen, Shi Fang, Zhang Hengxu , et al. A single phase earth fault location method based on transient energy for non-effectively grounded system[J]. Power System Technology, 2019,43(3):76-83.
[5]	李建鸿, 夏金亮, 蒋伟 . 小电流接地系统单相接地故障分析及预防措施[J]. 山东电力技术, 2019,46(6):46-50.
	Li Jianhong, Xia Jinliang, Jiang Wei . Single phase grounding fault analysis and preventive measures for small current grounding system[J]. Shandong Electric Power, 2019,46(6):46-50.
[6]	吕军, 盛万兴, 刘日亮 , 等. 配电物联网设计与应用[J]. 高电压技术, 2019,45(6):1681-1688.
	Lü Jun, Sheng Wanxing, Liu Riliang , et al. Design and application of power distribution internet of things[J]. High Voltage Engineering, 2019,45(6):1681-1688.
[7]	蔡月明, 封士永, 杜红卫 , 等. 面向泛在电力物联网的边缘节点感知自适应数据处理方法[J]. 高电压技术, 2019,45(6):1715-1722.
	Cai Yueming, Feng Shiyong, Du Hongwei , et al. Novel edge-ware adaptive data processing method for the ubiquitous electric power internet of things[J]. High Voltage Engineering, 2019,45(6):1715-1722.
[8]	胡绍谦, 王晓茹 . 基于GPS技术的电力系统同步相量测量装置[J]. 电子工程师, 2003(11):21-23.
	Hu Shaoqian, Wang Xiaoru . Synchronized phasor measurement device in power system based on GPS[J]. Electronic Engineer, 2003(11):21-23.
[9]	宋伊宁, 李天友, 薛永端 , 等. 基于配电自动化系统的分布式小电流接地故障定位方法[J]. 电力自动化设备, 2018,38(4):102-109.
	Song Yining, Li Tianyou, Xue Yongduan , et al. Distributed small current grounding fault locating method based on power distribution network automation system[J]. Electric Power Automation Equipment, 2018,38(4):102-109.
[10]	张保会, 赵慧梅, 张文豪 , 等. 基于特征频带内暂态零序电流特点的配电网单相接地故障选线方法[J]. 电力系统保护与控制, 2008(13):5-10. doi: 10.7667/j.issn.1674-3415.2008.13.002
	Zhang Baohui, Zhao Huimei, Zhang Wenhao , et al. Faulty line selection by comparing the amplitudes of transient zero sequence current in the special frequency band for power distribution networks[J]. Power System Protection and Control, 2008(13):5-10. doi: 10.7667/j.issn.1674-3415.2008.13.002