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抑制高压直流瓷和玻璃绝缘子铁帽电解腐蚀的保护锌环设计

DOI: 10.13334/j.0258-8013.pcsee.2015.17.030, PP. 4531-4538

Keywords: 高压直流,瓷和玻璃绝缘子,铁帽,电解腐蚀,正态分布,锌环,结构尺寸设计

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Abstract:

近年来,中国多条高压直流输电线路瓷绝缘子出现铁帽腐蚀现象。结合现场腐蚀情况,对铁帽腐蚀的机制及危害进行了深入的理论分析和试验研究。从概率统计学角度进行考虑,结合铁帽电解腐蚀模拟试验结果、现场腐蚀绝缘子年均腐蚀电荷量的测量结果以及不同类型绝缘子的铁帽结构尺寸,对3种典型铁帽结构直流瓷和玻璃绝缘子自带锌环的结构尺寸进行了优化设计,并采用AutoCAD软件计算了不同结构、不同吨位绝缘子锌环的尺寸及质量。研究结果表明:直流瓷和玻璃绝缘子铁帽电解腐蚀的主要危害是加速绝缘件表面积污,降低绝缘子的污闪电压,在铁帽帽檐安装保护锌环能够解决其电解腐蚀问题。模拟试验结果证明了所述锌环设计方案的有效性和可行性。

References

[1]  孙昕,刘泽洪,高理迎,等.±800 kV特高压直流工程创新实践[J].中国电机工程学报,2009,29(22):35-45. Sun Xin,Liu Zehong,GaoLiying,et al.Practice and innovation in the ±800 kV UHVDC demonstration project[J].Proceedings of the CSEE,2009,29(22):35-45(in Chinese).
[2]  胡建林,蒋兴良,孙才新,等.直流瓷绝缘子长串高海拔覆冰闪络特性[J].中国电机工程学报,2011,31(22):126-134. Hu Jianlin,Jiang Xingliang,Sun Caixin,et al.DC flashover performance of ice-covered porcelain insulator strings under high altitude conditions[J].Proceedings of the CSEE,2011,31(22):126-134(in Chinese).
[3]  Chandrasekar S,Kalaivanan C,Cavallina A,et al.Investigations on leakage current and phase angle characteristics of porcelain and polymeric insulator under contaminated conditions[J].IEEE Transactions on Dielectric Electrical Insulation,2009,16(2):574-583.
[4]  曾忱,李勇,王品.±800 kV复奉线重冰区段绝缘子铁帽锈蚀分析及建议[J].湖北电力,2012,36(5):66-67. Zeng Chen,Li Yong,Wang Pin.Analysis and recommendations of insulator gossans corrosion of heavy ice zone in ±800 kV Fufeng Line[J].Hubei Power,2012,36(5):66-67(in Chinese).
[5]  Crabtree I M,Mackey K J,Kito K,et al.Study on electrolytic corrosion of hardware of DC line insulators[J].IEEE Transactions on Power Apparatus and Systems,1985,104(3):645-654.
[6]  Galanov V I,Koshcheev L A,Dimitrev V L,et al.Research on electrolytic corrosion performance of long rod porcelain insulator[R].St Petersburg,Russia:Research center of HVDC transmission technology,1999.
[7]  宿志一.直流盘形绝缘子金具腐蚀研究中值得关注的问题[J].电网技术,2013,37(7):2047-2052. Su Zhiyi.Research on electrolytic corrosion on fittings of DC cap and pin insulators[J].Power System Technology,2013,37(7):2047-2052(in Chinese).
[8]  高理迎,孙涛,赵江涛,等.直流盘形悬式瓷绝缘子铁帽采用锌环防电解腐蚀特性的试验研究[J].电网技术,2013,37(12):3381-3385. Gao Liying,Sun Tao,Zhao Jiangtao,et al.Experimental research on anti-electrolytic corrosion characteristics of insulator cap for DC porcelain cap and pin insulator by zinc collar[J].Power System Technology,2013,37(12):3381-3385(in Chinese).
[9]  张福增,廖一帆,罗凌,等.特高压直流瓷绝缘子铁帽加速电腐蚀试验[J].电网技术,2014,38(2):311-315. Zhang Fuzeng,Liao Yifan,Luo Ling,et al.Accelerated electrolytic corrosion test of metal cap of DC porcelain insulator for UHVDC transmission line[J].Power System Technology,2014,38(2):311-315(in Chinese).
[10]  IEC.IEC61325 International standard.Insulators for overhead lines with a nominal voltage above 1000 V-Ceramicor glass insulator units for DC systems-Definitions,test methods and acceptance criteria[S].Geneva:International Electrotechnical Commission,1995.
[11]  中国电力行业标准化委员会.DL1000.2—2006 标称电压高于1 000 V架空线路绝缘子使用导则第2部分:直流系统用瓷和玻璃绝缘子[S].北京:中华人民共和国国家发展和改革委员会,2006. China Electric Power Industry Standardization Committee.DL1000.2—2006 Application guide of insulators for overhead lines with a nominal voltage above 1 000 V part 2:The ceramic or glass insulators for DC systems[S].Beijing:National Development and Reform Commission,2006.
[12]  中国国家标准化管理委员会.GB/T 19443—2013 标称电压高于1 000 V的架空线路用绝缘子—直流系统用瓷和玻璃绝缘子元件—定义、试验方法和接收准则[S].北京:中华人民共和国经济贸易委员会,2013. China National Standardization Management Committee.GB/T 19443—2013 Insulators for overhead lines with a nominal voltage above 1 000 V Ceramic or glass insulator units for DC systems-Definitions,test methods and acceptance criteria[S].Beijing:State Economic and Trade Commission of the People’s Republic of China,2013.
[13]  刘振亚,秦晓辉,赵良,等.特高压直流分层接入方式在多馈入直流电网的应用研究[J].中国电机工程学报,2013,33(10):1-7. Liu Zhenya,Qin Xiaohui,Zhao Liang,et al.Study on the application of UHVDC Hierarchical connection mode to multi-infeed HVDC system[J].Proceedings of the CSEE,2013,33(10):1-7(in Chinese).
[14]  关志成,张福增,王国利,等.我国特高压的特有技术问题[J].电力设备,2006,7(1):1-4. Guan Zhicheng,Zhang Fuzeng,Wang Guoli,et al.Peculiar Technology Problems of UHV in China[J].Electrical Equipment,2006,7(1):1-4(in Chinese).
[15]  张文亮,于永清,李光范,等.特高压直流技术研究[J].中国电机工程学报,2007,27(22):1-7. Zhang Wenliang,Yu Yongqing,Li Guangfan,et al.Researches on UHVDC Technology[J].Proceedings of the CSEE,2007,27(22):1-7(in Chinese).
[16]  梁涵卿,张文亮,梁旭明.特高压直流输电导线经济截面选择研究[J].中国电机工程学报,2013,33(31):114-119. Liang Hanqing,Zhang Wenliang,Liang Xuming.Research on economic optimization of section areas of conductors for UHVDC projects[J].Proceedings of the CSEE,2013,33(31):114-119(in Chinese).
[17]  张文亮,周孝信,郭剑波,等.±1000 kV特高压直流在我国电网应用的可行性研究[J].中国电机工程学报,2007,27(28):1-5. Zhang Wenliang,Zhou Xiaoxin,GuoJianbo,et al.Feasibility of ±1000 kV ultra HVDC in the power grid of China[J].Proceedings of the CSEE,2007,27(28):1-5 (in Chinese).
[18]  Deng Xuehua,Zhou Renjun,Zhang Chenhao.Study on stability of ±800 kV UHVDC transmission project[C]// International Power Engineering Conference.Singapore:IEEE,2007:625-629.

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