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基于电晕笼的导线操作冲击电晕特性试验研究

, PP. 165-172

Keywords: 电晕笼,冲击电晕,操作过电压,分裂导线,起晕电压,标准操作冲击,伏库特性曲线

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Abstract:

随着电力系统的电压等级逐渐升高,操作过电压对输变电设备的绝缘水平影响越来越大,如何对输电线路操作过电压精确计算,使设备的绝缘设计更为合理广受关注。目前计算线路操作过电压中都忽略了导线的冲击电晕会对操作过电压产生明显的衰减畸变影响,计算结果往往过于保守。在中国特高压交流试验基地进行的试验对电力系统常用的导线进行了操作冲击电晕试验,获得了相应的导线冲击电晕伏库特性曲线。试验结果表明,导线参数对起晕电压影响较大。长波头操作冲击产生的空间电荷量比标准操作冲击更大,而正极性冲击电晕比负极性电晕更为激烈。基于试验结果,建议在输电线路中安装选相合闸断路器的,利用断路器的开断使线路的操作过电压都为正极性的,从而利用正极性冲击电晕降低线路操作过电压值。

References

[1]  许伟,陈水明,何金良. 1000kV交流输电线路的故障激发过电压研究[J]. 电网技术.2005, 29(21):10-13. Xu wei,Chen Shuiming,He Jinliang.Research on switching overvoltage caused by faults in 1000kV AC transmission line[J].Power System Technology,2005,29(21):10-13(in Chinese).
[2]  杜欣慧,宋建成 戴云航,等. 1000kV晋南荆线空载合闸过电压及转移过电压的研究[J]. 中国电机工程学报, 2007,27(6):6-11. Du Xinhui,Song Jiancheng,Dai Yunhang,et al.Research on the unload lines switching overvoltage and clearing short-circuit faults transfer overvoltage of 1000kV Jin-Nan-Jing transmission line[J].Proceedings of the CSEE,2007,27(6)
[3]  He Jinliang,Li Chen,Hu Jun,et al. Deep Suppression of switching overvoltages in AC UHV systems using low residual arresters[J]. IEEE Transactions on Power Delivery, 2011,26(4):2718-2725.
[4]  Li Chen,He Jinliang,Hu Jun,et al. Switching transient of 1000kV UHV system considering detailed substation structure[J]. IEEE Transactions on Power Delivery, 2012,27(1):112-122.
[5]  吴维韩,张芳榴. 电力系统过电压数值计算[M]. 北京:科学出版社, 1989:89-95. Wu Weihan,Zhang Fangliu,Power system overvoltage numerical calculation[M].Beijing:SciencePress,1989
[6]  张纬钹,何金良,高玉明. 过电压防护及绝缘配合[M]. 北京:清华大学出版社, 2002:具体参考页码. Zhang Weibo,He Jinliang,Gao Yuming,Overvoltage protection and insulation coordination[M].Beijing:TsinghuaUniversity Press,2002
[7]  唐剑,杨迎建,何金良,等. 1000kV级特高压电晕笼设计关键问题探讨[J]. 高电压技术, 2007,33(4):1-5. Tang Jian,Yang Yingjian,He Jinliang,et al.Discussion on key problems in the design of 1000kV ultra-High voltage AC corona cage[J].High Voltage Engineering,2007,33(4)
[8]  唐剑,何金良,杨迎建,等. 特高压电晕笼防护段的设计[J]. 高电压技术, 2007,33(3):17-20. Tang Jian,He Jinliang,Yang Yingjian,et al.Design of shielding sections of ultra-high voltage corona cage[J].High Voltage Engineering,2007,33(3)
[9]  谷定燮,周沛洪,陈勇,等. 1000kV线路杆塔空气间隙距离选择[J]. 高电压技术, 2007,33(11):15-19. Gu Dingxie,Zhou Peihong,Chen Yong,et al.Selection of air clearance of 1000kV transmission line tower[J].High Voltage Engineering,2007,33(11)
[10]  谷定燮,周沛洪,修木洪,等. 交流1000kV输电系统过电压和绝缘配合研究[J]. 高电压技术, 2006,32(12):1-6. Gu Dingxie,Zhou Peihong,Xiu Muhong,et al.Study on overvoltage and insulation coordination f or 1000 kV AC transmission system[J].High Voltage Engineering,2006,32(12)
[11]  谷定燮,周沛洪,戴敏,等. 中日特高压输电系统过电压和绝缘配合的比较分析[J]. 高电压技术, 2009,33(6):1248-1253. Gu Dingxie,Zhou Peihong,Dai Min,et al.Comparison and analyses on over-voltage and insulation coordination of UHV AC transmission system between China and Japan[J].High Voltage Engineering,2009,33(6)
[12]  何慧雯,谷定燮,周沛洪,等. 特高压交流试验示范工程线路操作冲击试验电压波前时间计算分析[J]. 高电压技术, 2011,37(9):2156-2162. He Huiwen,Gu Dingxie,Zhou Peihong,et al.Simulating calculation and analysis on time-to-crest of switching impulse for test on Chinese UHV AC pilot project[J].High Voltage Engineering,2011,37(9)
[13]  刘振亚. 特高压电网[M]. 北京:中国经济出版社, 2005:173-177. Liu Zhenya.The UHV grid[M].Beijing:ChinaEconomic Press,2005
[14]  中华人民共和国电力工业部. DL/T62021997 交流电气装置的过电压保护和绝缘配合[S]. 北京:中国电力出版社, 1997.Ministry of power industry ofThe people's Republic of China.DL/T62021997 Overvoltage protection and insulation coordination for AC electrical installations[S].Beijing:ChinaElectric Power Press,1997(in Chinese).
[15]  朱家骝. 对中国1100kV电网过电压及绝缘水平的建议[J]. 电力设备, 2005,6(11):20-23. Zhu Jialiu.A discussion about overvoltage and insulation level of 1100kV power grid of China[J].Electrical Equipment,2005,6(11)
[16]  谷定燮. 对中国特高压输电系统过电压和绝缘配合的建议[J]. 高电压技术, 1999,25(1):29-32. Gu Dingxie.Suggestion of Overvoltage and its Insulation Coordination of UHV in China[J].High Voltage Engineering,1993.3,25(1)
[17]  陈水明,许伟,何金良. 沿线多组避雷器深度限制特高压操作过电压[J]. 高电压技术, 2006,(12):11-15. Chen Shuiming,Xu Wei,He Jinliang.Adopting some arresters to suppress switching overvoltage deeply in 1000kV UHV transmission line[J].High Voltage Engineering,2006,(12)
[18]  陈秀娟,陈维江,沈海滨,等. 特高压输电系统操作过电压柔性限制方法[J]. 高电压技术, 2007,(11):1-5. Chen Xiujuan,Chen Weijiang,Shen Haibin,et al.Flexible measures to depress switching overvoltage in UHV transmission system[J].High Voltage Engineering,2007,(11)
[19]  周元清,彭建春,王官宏,等. 特高压交流输电线路串联补偿合闸操作过电压研究[J]. 电力自动化设备, 2008(1):23-26. Zhou Yuanqing,Peng Jianchun,Wang Guanhong,et al.Close-operation overvoltage of UHV AC transmission line with series compensation[J].Electric Power Automation Equipment,2008(1)

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