降阻防腐技术在变电站接地网的应用分析
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摘要
变电站接地网是电力系统安全运行的根本保证。如何有效降低接地网接地电阻、如何对接地网腐蚀进行防护,这些都是急需研究、解决的问题。论文调研分析了接地网接地电阻偏高的原因,并提出降低接地电阻的有效措施并进行应用分析：此外还统计分析接地网腐蚀及其机理、土壤对接地导体腐蚀的影响因素、并有针对性的提出了接地网的防腐措施,并对实际变电站接地网进行腐蚀防护措施的应用,进而验证了本文提出的接地网防腐措施的有效性和实用性。变电站接地网降阻防腐技术的研究为解决接地网接地电阻偏高且容易发生腐蚀等问题提供理论依据和实践指导,为变电站安全运行增加了一道防护墙。
Substation grounding grid is the fundamental guarantee for power system's safe operation. How to effectively reduce the grounding resistance of grounding grids, how to carry out grounding network corrosion protection, all of these problems are urgent to be researched and solved.
This paper research and analysis the reasons of high grounding resistance of grounding grid and propose effective measures to reduce the grounding resistance and carry out application analysis on reduces resistance technology. In addition, the paper analysis of grounding grids corrosion mechanism, the soil factors impact on the grounding conductor corrosion, and propose effective measures to prevent the grounding conductor corrosion. Through the application of corrosion protection measures on actual substation grounding grid, the effectiveness and practicability of corrosion prevention technology were proved.
The applied analysis of resistance reduction and corrosion prevention provides the theory basis and practice guidance for solving the high grounding resistance and easy corrosion problem of substation grounding grid. It will greatly enhance the substation grounding grid's stability and security.
Substation grounding grid is the fundamental guarantee for power system's safe operation. How to effectively reduce the grounding resistance of grounding grids, how to carry out grounding network corrosion protection, all of these problems are urgent to be researched and solved.
This paper research and analysis the reasons of high grounding resistance of grounding grid and propose effective measures to reduce the grounding resistance and carry out application analysis on reduces resistance technology. In addition, the paper analysis of grounding grids corrosion mechanism, the soil factors impact on the grounding conductor corrosion, and propose effective measures to prevent the grounding conductor corrosion. Through the application of corrosion protection measures on actual substation grounding grid, the effectiveness and practicability of corrosion prevention technology were proved.
The applied analysis of resistance reduction and corrosion prevention provides the theory basis and practice guidance for solving the high grounding resistance and easy corrosion problem of substation grounding grid. It will greatly enhance the substation grounding grid's stability and security.
引文
[1]解广润,电力系统接地技术,第一版,中国电力出版社1996.11.
[2]何金良,曾嵘,电力系统接地技术,第一版,科学出版社2007.2.
[3]汪新秀,蒋正龙,毛文奇：湖南省220kV及以上变电站接地网安全性评价,湖南电力,2006,No.5：24-27.
[4]Lawson V R., Problems and detection of line anchor and substation ground grid corrosion, Industry Applications, IEEE Transactions on, Jan。-Feb.1988, Volume:24, Issue:1, Pages:25-32.
[5]刘 辉,李明贵,陈晓兵,广西电网防雷及接地工作存在的主要问题及对策,广西电力,2006.3
[6]王培利,变电站接地网存在的问题及对策,山西电力技术1996NO.3：17-21.
[7]Liu H., C. H., Soma M., Fault diagnosis for analog integrated circuits based on the circuit layout 1991 Proceedings Pacific Rain International Symposium on Fault Tolerant Systems 26-27 Sep 1991, Page(s):134-139.
[8]胡少中,接地网改造中的几个问题,福建电力与电工,1996,3：16：55-57.
[9]李景禄,实用电力接地技术[M],北京：中国电力出版社,2002.
[10]Hu Jun, Zhang Rong, He Jinliang et al。 Novel method of corrosion diagnosis for grounding grid[C]. in Proceedings. of Power Con.2000,2000, 3:1365-1370.
[11]Anton Habjanic, Mladen Trlep, Joze Pihler. The Influence of an Additional Substance in the Trenches Surrounding the Grounding Grid's Conductors on the Grounding Grid's Performance[J]. IEEE Transactions on Magnetics,2007,43(4):1257-1260
[12]李景禄,接地降阻剂应用及存在问题分析[J],高电压技术,2004,30(3)：65-66.
[13]李景禄,高效膨润上降阻剂及其工程应用[J],高电压技术,1999,21(4)：91-93.
[14]李景禄,郑瑞臣,关于接地工程中若干问题的分析和探讨.高电压技术.2006年06期.
[15]吴向东,500kV输电线路接地网腐蚀分析既防护措施,腐蚀与防护,2002年12期.
[16]曹康,董国防,贾志林,张振东.牺牲阳极保护法在接地网防腐改造中的应用[J].河北电力技术.2006年03期.
[17]骆艳霞,王志军,邬春玲.浅谈变电站地网的降阻方法[J].内蒙古电力技术,2004,22(2)：32-36
[18]胡治平,池华建.阴极保护防腐蚀技术在变电所及发电厂的应用.江苏电机工程,2006,25(2)：82～84.
[19]迟善武.阴极保护电源的技术现状与发展趋势.仪器仪表用户,2006,4(13)：6-8.
[20]Beavers,.A. and N. G. Thompson. Corrosion beneath disbanded pipeline coatings. Materials performance,1997,36(4):13-1
[21]彭敏放,何冶刚等,高土壤电阻率地区接地网建设中若干问题的探讨,华北电力技术,2003.
[22]Dawalibi F P. Electromagnetic fields generated by overhead and buried short conductor's Part 2-Ground conductor. IEEE Trans. On Power Delivery,1986,PWRD-Ⅰ:112-119.
[23]N. B. Harnida, B.Karninska, Analog circuit testing based on sensitivity computation and new circuit modeling, International Test Conference,1993. Proceedings,17-21 Oct 1993:652-661.
[24]Spence H.F., Printed circuit board diagnosis using artificial neural networks and circuit magnetic fields AUTOTESTCON'93 Systems Readiness Technology Conference Proceedings 20-23,Sep 1993, Page(s): 107-112.
[25]潘溪渊,曾嵘,何金良,高延庆；变电站站址土壤结构分析.清华大学学报,2002,423)： 288-290.
[26]Zou Jun, Zeng Rong, He jinliang, et al. Fast Algorithm for Inverting Structure Parameters of the Horizontal Multi-layer Soil, Progress in Natural Science,2003.13(7):553-556.
[27]IEEE Std C37.101-1993.IEEE Guide for Generator Ground Protection
[28]中华人民共和国电力工业部, 交流电气装置的接地.DL／T621-1997.北京：水利电力出版社,1998.
[29]高延庆,曾嵘,何金良,电力系统接地技术研究进展,电力建设,2004,25(6)：1-3,7.
[30]IEEE Std 80-2000. IEEE Guide for safety of AC Substation Groundings
[31]Augusto J.S., Ahmeida C. F. B., Circuit equations for fast fault simulation and diagnosis of linear circuits,1998 IEEE International Conference on Electronics Circuits and Systems 1998 Volume:1, Page(s): 125-128.
[32]Flanary D., Ground fault monitoring in Alcator C-MOD,1993 15th IEEE/NPSS Symposium on Fusion Engineering,11 - 15 Oct 1993, Volume:2, Page(s):885-888.
[33]胡学文,许崇武,王钦,接地网的防蚀材料性能试验,高电压技术,2002.5, Vol.28. No.5： 21-23.
[34]闫风洁, 李辛庚, 电力接地网腐蚀与防护技术的进展[J], 山东电力技术,2007.01
[35]邵建人,向洪兵,杜继红,交流系统接地网的腐蚀与防护研究,全国电网中性点接地方式与接地技术研讨会论文集,2005,225-227
[36]廖怀东,李建平,关健,变电站接地网腐蚀机理及材料选择,全国电网中性点接地方式与接地技术研讨会论文集,2005,240-241
[2]何金良,曾嵘,电力系统接地技术,第一版,科学出版社2007.2.
[3]汪新秀,蒋正龙,毛文奇：湖南省220kV及以上变电站接地网安全性评价,湖南电力,2006,No.5：24-27.
[4]Lawson V R., Problems and detection of line anchor and substation ground grid corrosion, Industry Applications, IEEE Transactions on, Jan。-Feb.1988, Volume:24, Issue:1, Pages:25-32.
[5]刘 辉,李明贵,陈晓兵,广西电网防雷及接地工作存在的主要问题及对策,广西电力,2006.3
[6]王培利,变电站接地网存在的问题及对策,山西电力技术1996NO.3：17-21.
[7]Liu H., C. H., Soma M., Fault diagnosis for analog integrated circuits based on the circuit layout 1991 Proceedings Pacific Rain International Symposium on Fault Tolerant Systems 26-27 Sep 1991, Page(s):134-139.
[8]胡少中,接地网改造中的几个问题,福建电力与电工,1996,3：16：55-57.
[9]李景禄,实用电力接地技术[M],北京：中国电力出版社,2002.
[10]Hu Jun, Zhang Rong, He Jinliang et al。 Novel method of corrosion diagnosis for grounding grid[C]. in Proceedings. of Power Con.2000,2000, 3:1365-1370.
[11]Anton Habjanic, Mladen Trlep, Joze Pihler. The Influence of an Additional Substance in the Trenches Surrounding the Grounding Grid's Conductors on the Grounding Grid's Performance[J]. IEEE Transactions on Magnetics,2007,43(4):1257-1260
[12]李景禄,接地降阻剂应用及存在问题分析[J],高电压技术,2004,30(3)：65-66.
[13]李景禄,高效膨润上降阻剂及其工程应用[J],高电压技术,1999,21(4)：91-93.
[14]李景禄,郑瑞臣,关于接地工程中若干问题的分析和探讨.高电压技术.2006年06期.
[15]吴向东,500kV输电线路接地网腐蚀分析既防护措施,腐蚀与防护,2002年12期.
[16]曹康,董国防,贾志林,张振东.牺牲阳极保护法在接地网防腐改造中的应用[J].河北电力技术.2006年03期.
[17]骆艳霞,王志军,邬春玲.浅谈变电站地网的降阻方法[J].内蒙古电力技术,2004,22(2)：32-36
[18]胡治平,池华建.阴极保护防腐蚀技术在变电所及发电厂的应用.江苏电机工程,2006,25(2)：82～84.
[19]迟善武.阴极保护电源的技术现状与发展趋势.仪器仪表用户,2006,4(13)：6-8.
[20]Beavers,.A. and N. G. Thompson. Corrosion beneath disbanded pipeline coatings. Materials performance,1997,36(4):13-1
[21]彭敏放,何冶刚等,高土壤电阻率地区接地网建设中若干问题的探讨,华北电力技术,2003.
[22]Dawalibi F P. Electromagnetic fields generated by overhead and buried short conductor's Part 2-Ground conductor. IEEE Trans. On Power Delivery,1986,PWRD-Ⅰ:112-119.
[23]N. B. Harnida, B.Karninska, Analog circuit testing based on sensitivity computation and new circuit modeling, International Test Conference,1993. Proceedings,17-21 Oct 1993:652-661.
[24]Spence H.F., Printed circuit board diagnosis using artificial neural networks and circuit magnetic fields AUTOTESTCON'93 Systems Readiness Technology Conference Proceedings 20-23,Sep 1993, Page(s): 107-112.
[25]潘溪渊,曾嵘,何金良,高延庆；变电站站址土壤结构分析.清华大学学报,2002,423)： 288-290.
[26]Zou Jun, Zeng Rong, He jinliang, et al. Fast Algorithm for Inverting Structure Parameters of the Horizontal Multi-layer Soil, Progress in Natural Science,2003.13(7):553-556.
[27]IEEE Std C37.101-1993.IEEE Guide for Generator Ground Protection
[28]中华人民共和国电力工业部, 交流电气装置的接地.DL／T621-1997.北京：水利电力出版社,1998.
[29]高延庆,曾嵘,何金良,电力系统接地技术研究进展,电力建设,2004,25(6)：1-3,7.
[30]IEEE Std 80-2000. IEEE Guide for safety of AC Substation Groundings
[31]Augusto J.S., Ahmeida C. F. B., Circuit equations for fast fault simulation and diagnosis of linear circuits,1998 IEEE International Conference on Electronics Circuits and Systems 1998 Volume:1, Page(s): 125-128.
[32]Flanary D., Ground fault monitoring in Alcator C-MOD,1993 15th IEEE/NPSS Symposium on Fusion Engineering,11 - 15 Oct 1993, Volume:2, Page(s):885-888.
[33]胡学文,许崇武,王钦,接地网的防蚀材料性能试验,高电压技术,2002.5, Vol.28. No.5： 21-23.
[34]闫风洁, 李辛庚, 电力接地网腐蚀与防护技术的进展[J], 山东电力技术,2007.01
[35]邵建人,向洪兵,杜继红,交流系统接地网的腐蚀与防护研究,全国电网中性点接地方式与接地技术研讨会论文集,2005,225-227
[36]廖怀东,李建平,关健,变电站接地网腐蚀机理及材料选择,全国电网中性点接地方式与接地技术研讨会论文集,2005,240-241