江航,杨勇,周伟杰,曹俊平,蒋瑜宽
JIANG Hang,YANG Yong,ZHOU Weijie,CAO Junping,JIANG Yukuan

• 1:国网浙江省电力公司电力科学研究院
• 2:杭州电力承装有限公司

摘要(Abstract)：

随着电力电缆在电网中应用的占比增大,电缆故障越来越频繁,而国内在电缆缺陷故障的监测与预防方面还存在不少的空缺,现有技术各有优劣。通过列举电缆的典型缺陷故障,介绍电缆缺陷常用的仿真模型和制作方法;并分别从离线诊断技术、在线监测技术和电缆状态评估体系3个方面分析电缆状态评估的现状,通过比较各技术的优缺点,为电缆状态量测量和总体状态评估的进一步研究提供依据。提出了电缆状态仿真技术的发展趋势:侧重于研究不同工况下的典型缺陷电缆模型的温度、接地电流、局部放电等状态量的变化规律;根据变化规律提出电缆状态综合诊断及评估方法;合理配置检测设备参数并优化硬件设施,弥补现有设备的不足之处;联合多种在线检测技术对电缆进行综合诊断,实现电缆运行状态的准确评估。
With the increase of electric power cables in power system,the fault of cable becomes more and more frequent.However,there are still a lot of vacancies in cable fault detection and prevention in China,and each of the existing technologies has its advantages and disadvantages.By listing typical cable defects and faults,the paper introduces common simulation models of cable defects and establishment methods;besides,status quo of cable state evaluation is analyzed in terms of offline diagnosis technology,online diagnosis technology and cable state evaluation system;by comparison of advantages and disadvantages of each technology,basis for further research on quantity measurement of state and overall state evaluation is provided.In this paper,the developing trend of the cable state simulation technology is as follows:the research is committed to variation laws of temperature,grounding current,partial discharge and other state quantities of the typical defect cable model under different working conditions;according to the law of variation,a method of comprehensive diagnosis and evaluation of cable state is raised;reasonable allocation of equipment parameters and optimization of hardware facilities are implemented to make up for the shortcomings of existing equipment.In combination with on-line detection technologies,the cables are comprehensively diagnosed to accurately evaluate cable operation status.

关键词(KeyWords)： 电力电缆;缺陷模拟;状态评估;仿真;典型故障
power cable;defect simulation;state evaluation;simulation;typical fault

Abstract:

Keywords:

基金项目(Foundation): 国网浙江省电力公司科技项目(5211DS15002B)

作者(Author): 江航,杨勇,周伟杰,曹俊平,蒋瑜宽
JIANG Hang,YANG Yong,ZHOU Weijie,CAO Junping,JIANG Yukuan

DOI: 10.19585/j.zjdl.201710007

参考文献(References)：

• [1]罗俊华,杨黎明,史济康,等.电力电缆及试验技术回顾[J].高电压技术,2004,30(Z1):81-82.
• [2]JOHN DENSLEY.Review of International Standards and Practices for Medium Voltage Power Cable Diagnostics[C].2007 International Conference on Solid Dielectrics,Winchester,U K,July,2007.
• [3]廖瑞金,周天春,刘玲,等.交联聚乙烯电力电缆的电树枝化试验及其局部放电特征[J].中国电机工程学报,2011,31(28):136-143.
• [4]姜芸,周韫捷.分布式局部放电在线监测技术在上海500kV交联聚乙烯电力电缆线路中的应用[J].高电压技术,2015,41(4):1249-1256.
• [5]周远翔,赵健康,刘睿,等.高压/超高压电力电缆关键技术分析及展望[J].高电压技术,2014,40(9):2593-2612.
• [6]周凤争,孟庆霖,朱晓辉,等.10 kV电缆附件典型缺陷仿真与绝缘故障分析[J].绝缘材料,2011,44(4):67-59.
• [7]刘刚,陈志娟,陆国俊,等.110 kV交联聚乙烯电缆接头主绝缘含杂质的击穿特性分析[J].高电压技术,2010,36(10):2450-2453.
• [8]李欢,李欣,李巍巍,等.含针尖缺陷的XLPE电缆绝缘击穿行为的频率依赖特性研究[J].绝缘材料,2014,47(2):71-75.
• [9]刘刚,阮班义,陈志娟,等.10 kV XLPE电缆接头连接管含空气隙缺陷的电场分析[J].绝缘材料,2011(5):62-66.
• [10]魏钢.高压交联聚乙烯电力电缆接头绝缘缺陷检测及识别研究[D].重庆:重庆大学,2013.
• [11]袁燕岭,李世松,董杰,等.电力电缆诊断检测技术综述[J].电测与仪表,2015,53(11):1-7.
• [12]鲍克勤,姚冰峰,陈婷,等.基于振荡波原理的电缆交流耐压试验系统的研究[J].华东电力,2013,41(8):1705-1707.
• [13]GOCKENBACH E,HAUSCHILD W.The Selection of the Frequency Range for High-voltage On-site Testing of Ex truded Insulation Cable Systems[J].IEEE Electrical Insulation Magazine,2000,6(16):11-16.
• [14]刘刚,张高言,周凡.基于等温松驰法的110 kV高压电缆老化状况评估[J].高电压技术,2014,40(2):497-504.
• [15]徐海宁,史令彬,卢志飞,等.柔性直流输电电缆温度场建模及载流量分析[J].浙江电力,2015,11(2):52-60.
• [16]金德辉.基于直流分量法的XLPE电缆在线监测系统[D].大连:大连理工大学,2012.
• [17]曹俊平,温典,蒋愉宽,等.110 kV电缆振荡波局部放电模拟试验分析[J].浙江电力,2017,36(2):1-4.
• [18]高云鹏,谭甜源,刘开培.电力电缆温度监测方法的探讨[J].绝缘材料,2014,47(6):13-17.
• [19]李平,洪思远,李海锋.XLPE电力电缆健康度的模糊灰色综合评价方法[J].机电工程技术,2012,41(1):20-24.
• [20]王宗耀.基于改进雷达图理论的交联聚乙烯电力电缆运行状态综合评估[J].高压电器,2015,51(3):145-150.