摘要
如何防止开关柜内受潮导致的设备误动和拒动,具有重要的现实意义。基于此,对开关柜受潮凝露机理及其防治关键技术进行了探讨。首先,介绍了开关柜结构特点及其受潮凝露防治现状,详细分析了开关柜凝露产生的机理、原因、条件和危害。然后,对防凝露相关的措施和改进方法进行了简要描述,这些方法可有效消除开关柜在运行过程中发生的故障。最后,提出了一种开关柜受潮凝露机理的研究方案。该方案涵盖了开关柜受潮凝露发生的影响要素分析和受潮凝露机理研究模拟环境的搭建方案,并采用"源"的概念进行了干燥气源除湿系统的方案设计。基于该方案,对开关柜受潮凝露机理及防治关键技术进行了展望。
How to prevent the equipment from malfunctioning and refusing caused by moisture in the switchgear has important practical significance. On this basis, the occurrence mechanisms of moisture and dewing in the switchgear and its key technologies for prevention and control are discussed. Firstly, the structural characteristics of the switchgear and the status quo of the prevention and control of the moisture and dewing are introduced. The mechanism, causes,conditions and hazards of the dewing of the switchgear are analyzed in detail. Then, the anti-dewing related measures and improvement methods are briefly described. These methods can effectively eliminate the failures occurred in the switchgear during operation. Lastly, an investigation scheme for the mechanism of moisture and dewing in switchgear is proposed. The scheme covers the analysis of the influence factors on the phenomena of moisture and dewing in the switchgear and the construction scheme of the simulation environment for the moisture and dewing mechanism research,and moreover, in which the concept of source is adopted to design a dry gas source based dehumidification system. Based on this scheme, the mechanism of moisture and dewing and the key technologies of prevention and control for the switchgear are prospected.
引文
[1]苏东,马仲能,李成翔,等.配网开关柜全生命周期成本模型及敏感度分析[J].电力系统保护与控制,2018,46(1):150-155.SU Dong,MA Zhongneng,LI Chengxiang,et al.Life cycle cost model and sensitivity analysis of switchgear[J].Power System Protection and Control,2018,46(1):150-155.
[2]李英奇,王战红,梅超美,等.一起开关柜凝露闪络事故分析与预防措施[J].陕西电力,2009,37(4):51-53.LI Yingqi,WANG Zhanhong,MEI Chaomei,et al.Reason analysis of one dewing flashover accident in switchgear&its preventive measure[J].Shaanxi Electric Power,2009,37(4):51-53.
[3]苗红霞,萧旋旋,江冰,等.基于信息融合的预装式变电站健康状态评估[J].电力系统保护与控制,2017,45(14):85-91.MIAO Hongxia,XIAO Xuanxuan,JIANG Bing,et al.State evaluation of prefabricated substation based on information fusion[J].Power System Protection and Control,2017,45(14):85-91.
[4]徐志,程乐峰,余涛,等.电力节能诊断计算器手机应用程序设计[J].广东电力,2015,28(11):116-120.XU Zhi,CHENG Lefeng,YU Tao,et al.Design of power energy saving and diagnosis calculator APP for mobile phone[J].Guangdong Electric Power,2015,28(11):116-120.
[5]杨家全,陆海,李邦源,等.基于帝国竞争算法的电网碳排放优化模型[J].广东电力,2016,29(3):25-32.YANG Jiaquan,LU Hai,LI Bangyuan,et al.Optimization model of grid carbon emissions based on imperialist competitive algorithm[J].Guangdong Electric Power,2016,29(3):25-32.
[6]汤毅,程乐峰,李正佳,等.基于智能台区的配电网经济运行及优化高级分析系统设计[J].电力系统保护与控制,2016,44(15):150-158.TANG Yi,CHENG Lefeng,LI Zhengjia,et al.Design of economic operation and optimization analysis system based on intelligent area power network[J].Power System Protection and Control,2016,44(15):150-158.
[7]蔡德华,陈柏熹,程乐峰,等.实施需求侧管理对提高发电系统可靠性的影响探究[J].电力系统保护与控制,2015,43(10):51-56.CAI Dehua,CHEN Baixi,CHENG Lefeng,et al.Effective study about the implementation of demand side management on improving reliability of generation system[J].Power System Protection and Control,2015,43(10):51-56.
[8]林勇,徐钦伟,张俊强,等.基于ECP的轨道交通直流牵引供电系统开关状态评价算法[J].电力系统保护与控制,2018,46(5):16-24.LIN Yong,XU Qinwei,ZHANG Junqiang,et al.Status evaluation algorithm of DC traction power supply system switchgear based on ECP for rail transit[J].Power System Protection and Control,2018,46(5):16-24.
[9]曾文清.高压开关柜防凝露技术研究与实践[J].冶金动力,2016,32(10):49-50.ZENG Wenqing.Study and practice of anti-condensation technology for high-voltage switchgear[J].Metallurgical Power,2016,32(10):49-50.
[10]肖羽.配电网开关柜受潮与除湿[J].农村电气化,2016,23(12):28-28.XIAO Yu.Dampness and arefaction of switchgear in distribution network[J].Rural Electrification,2016,23(12):28-28.
[11]徐侃.浅谈500 kV变电(换流)站户外箱柜防潮、防凝露治理[J].科技资讯,2013,10(32):121-122.XU Kan.The protective measures to avoid dampness and condensation of outdoor box at 500 k V transformer substation[J].Science&Technology Information,2013,10(32):121-122.
[12]林芳强.10 kV金属封闭开关柜存在的柜内凝露现象及策略[J].科技尚品,2017,28(9):196-196.LIN Fangqiang.Indoor dewing phenomenon and strategy in metal-enclosed switchgear[J].Premiere,2017,28(9):196-196.
[13]李传江.高压开关柜新型防凝露系统的研究与应用[J].华电技术,2016,38(8):16-18.LI Chuanjiang.Research and application of high-voltage switchgear new-type anti-dewing system[J].Huadian Technology,2016,38(8):16-18.
[14]郑悠,方丹丹,吴英俊,等.基于物联网的开关柜内凝露形成及除湿研究[J].机电工程,2017,34(6):664-668.ZHENG You,FANG Dandan,WU Yingjun,et al.Formation mechanism and countermeasures of dewing in the metal enclosed switch cabinet based on internet of things[J].Journal of Mechanical&Electrical Engineering,2017,34(6):664-668.
[15]蒋涛,孙微庭.环网开关柜凝露问题的分析与解决方案[J].农村电工,2011,19(1):28-28.JIANG Tao,SUN Weiting.Analysis and solution of dewing problems for the looped-network switchgear[J].Rural Electrician,2011,19(1):28-28.
[16]应兵荣,余永松,王亮.开关柜凝露、绝缘受潮原因及防范措施探讨[J].机电信息,2015,22(30):63-66.YING Bingrong,YU Yongsong,WANG Liang.Discussion on dewing,insulation dampness reason and countermeasures of switchgear[J].Mechanical and Electrical Information,2015,22(30):63-66.
[17]陈荣,闫新,严玮,等.开关柜内凝露现象数值模拟研究[J].资料节约与环保,2015,11(5):21-23.CHEN Rong,YAN Xin,YAN Wei,et al.Numerical situation study of dewing phenomenon in switchgear[J].Resources Economization&Environmental Protection,2015,11(5):21-23.
[18]陈荣,闫新,张弛,等.几种闭式开关柜防凝露方法的模拟研究[J].节能,2015,35(9):26-31.CHEN Rong,YAN Xin,ZHANG Chi,et al.Numerical study of several anti-condensation methods for closed switch cabinet[J].Energy Conservation,2015,35(9):26-31.
[19]齐昕,张育臣,唐喜,等.基于IEC 61850的配网成套开关状态监测系统研制[J].电力系统保护与控制,2015,43(6):109-114.QI Xin,ZHANG Yuchen,TANG Xi,et al.Development of distribution network switchgear condition monitoring system based on IEC 61850[J].Power System Protection and Control,2015,43(6):109-114.
[20]BO Z Q,LIN X N,WANG Q P,et al.Developments of power system protection and control[J].Protection and Control of Modern Power Systems,2016,1(1):1-8.DOI:10.1186/s41601-016-0012-2.
[21]SHIOIRI T,SATO J,OZAKI T,et al.Insulation technology for medium voltage solid insulated switchgear[C]//2003Annual Report Conference on Electrical Insulation and Dielectric Phenomena,October 19-22,2003,Albuquerque,NM,USA:341-344.
[22]WAHLE A B,PIETSCH G J.Effect of energy absorption systems on internal arc testing of medium voltage switchgear[C]//IEEE 17th International Conference on Gas Discharges and Their Applications,September 7-12,2008,Cardiff,UK:193-196.
[23]LI Y Q,CHENG W L.A novel temperature monitoring system based on FBG for switchgear[C]//IEEEAsia-Pacific Power and Energy Engineering Conference,March 28-31,2010,Chengdu,China:1-4.
[24]HUANG X P,WANG X,QIANG W.Development of on-line monitoring equipment of medium voltage switchgear[C]//IEEE 8th International Conference on Electronic Measurement and Instruments(ICEMI'07),August 16-18,2007,Xi'an,China:388-392.
[25]KANG J H,CHOI S M,DONG E,et al.Development of electromagnetic actuator for hybrid type gas insulated switchgear[C]//International Conference on Power Engineering,Energy and Electrical Drives(POWERENG2007),April 12-14,2007,Setubal,Portugal:499-503.
[26]周丰群,张义民,何超.电气设备用温度凝露控制器的研制[J].电力自动化设备,2002,22(3):61-62.ZHOU Fengqun,ZHANG Yimin,HE Chao.Development of temperature and dewing controller for electric equipment[J].Electric Power Automation Equipment,2002,22(3):61-62.
[27]李晓东,陈中显.一种配网开关柜防凝露的管理系统[J].电工电气,2016,23(9):58-61.LI Xiaodong,CHEN Zhongxian.A kind of management system of anti-condensation for distribution network switch cabinet[J].Electrotechnics Electric,2016,23(9):58-61.
[28]刘建戈.空气相对湿度及凝露对中置式开关柜的影响及对策[J].电工技术,2016,37(2):26-28.LIU Jiange.Impact of relative air humidity and dewing on mid-set switchgear and the strategy[J].Electric Engineering,2016,37(2):26-28.
[29]RUAN S F,WU M Y,DAI M L,et al.The study on a seismic test of high-voltage electrical switch cabinet[C]//Proceedings of the IEEE Asia-Pacific Power and Energy Engineering Conference(APPEEC),March 27-31,2009,Wuhan,China:1-6.
[30]建筑门窗玻璃幕墙热工计算规程:JGJ/T151-2008[S].北京:中国建筑工业出版社,2009.Thermotechnical specification for calculation of architectural glass windows&doors,and curtain:JGJ/T151-2008[S].Beijing:China Architecture&Building Press,2009.
[31]杨增汪,王宜怀,戴新宇.基于ZigBee和GPRS的高压开关柜无线监测系统设计[J].电力系统保护与控制,2010,38(23):203-206,211.YANG Zengwang,WANG Yihuai,DAI Xinyu.Design of wireless monitoring system for high voltage switchgear based on ZigBee and GPRS[J].Power System Protection and Control,2010,38(23):203-206,211.
[32]林根德,陈达,黄继来,等.某35 kV开关柜局部放电及受潮的原因分析[J].电工电气,2017,24(8):39-42.LIN Gende,CHEN Da,HUANG Jilai,et al.Causes analysis of partial discharge and damp for certain 35 kVswitchgear[J].Electrotechnics Electric,2017,24(8):39-42.
[33]刘革明,尹项根,蔡树立,等.一种基于双DSP的环网柜测控保护终端[J].继电器,2005,33(8):52-55,60.LIU Geming,YIN Xianggen,CAI Shuli,et al.A device integrated with control measurement and protection functions based on two DSPs for ring main unit[J].Relay,2005,33(8):52-55,60.
