交流输电线路距地震观测台站的最小距离
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摘要
GB/T 19531.2-2004中明确规定了地电场和地电阻率观测时允许的工频骚扰电场强度指标,并给出了500 kV及以下交流输电线路距地电场和地电阻率测量极的最小允许距离。然而,随着输电线路电压等级的提高,标准中规定的最小距离已不适用750 kV和1000 kV超特高压交流输电线路。为此,利用拟蒙特卡罗数值积分方法计算了在输电线路两侧由线路工作电流激发的工频电场,将计算结果分别与地电场和地电阻率观测时允许的工频骚扰电场强度进行比较,得到了不同电压等级、不同塔型的交流输电线路不同土壤电阻率、典型工作电流下距地电场和地电阻率测量极的最小允许距离。计算结果表明:500 kV及以下交流输电线路距地电场和地电阻率测量极的最小允许距离与GB/T 19531.2-2004中的推荐值基本一致,而750、1000 kV交流输电线路距地电场和地电阻率测量极的最小允许距离要求更为严格,且受土壤电阻率的影响较大。
The power frequency electric field generated by the transmission line currents was calculated by the quasi-Monte Carlo integration method.Compared with the control values of power frequency electric field,the minimum distances between the AC transmission lines and seismic observation stations were obtained under the typical operating current for different voltage level,different tower structure and different earth resistivity.The simulated results show that:(1) the minimum distances for the AC transmission lines below 500 kV are consistent with the proposed values in GB/T 19531.2-2004;(2) the minimum distances for the 750 kV and 1000 kV AC transmission lines are more rigorous and greatly affected by the earth resistivity.
The power frequency electric field generated by the transmission line currents was calculated by the quasi-Monte Carlo integration method.Compared with the control values of power frequency electric field,the minimum distances between the AC transmission lines and seismic observation stations were obtained under the typical operating current for different voltage level,different tower structure and different earth resistivity.The simulated results show that:(1) the minimum distances for the AC transmission lines below 500 kV are consistent with the proposed values in GB/T 19531.2-2004;(2) the minimum distances for the 750 kV and 1000 kV AC transmission lines are more rigorous and greatly affected by the earth resistivity.
引文
[1]杜玮.国家标准化管理委员会国家标准统一宣贯教材GB/T19531.1-19531.4-2004《地震台站观测环境技术要求》宣贯教材[M].北京:中国标准出版社,2004.
[2]GB/T19531.2-2004地震台站观测环境技术要求第2部分:电磁观测[S],2004.
[3]徐学恭,田山.津滨轻轨地磁干扰范围的实验研究[J].地震地磁观测与研究,2008,29(6):41-44.XU Xue-gong,TI ANShan.The experi mental study of geomag-netic disturbance of Jinbin light rail[J].Seismological and Geo-magnetic Observation and Research,2008,29(6):41-44.
[4]于政轩,李勇,王治业.大连轻轨客车运行对地磁观测环境干扰的测试与分析[J].地震地磁观测与研究,2004,25(6):55-62.YU Zheng-xuan,LI Yong,WANG Zhi-ye.The test and analy-sis of the influence of Dalian City railcar on the environment ofgeomagnetic observation[J].Seismological and GeomagneticObservation and Research,2004,25(6):55-62.
[5]马钦忠,王炜.上海市地铁对地磁观测影响的实验分析[J].地震地磁观测与研究,2004,25(5):24-29.MA Qin-zhong,WANG Wei.The experi mental researchfor theinfluence of the subway in Shanghai to geomagnetic observation[J].Seismological and Geomagnetic Observation and Research,2004,25(5):24-29.
[6]朱铁栓.电气化铁路对地电观测台影响的研究[J].铁道通信信号,2009,45(4):50-51.ZHU Tie-shuan.Study of theinfluence of electrified rail ways togeo-electricity observation stations[J].Rail way Signalling&Communication,2009,45(4):50-51.
[7]赵家骝,王燕琼.电气化铁路对平凉地震地电观测干扰的实验研究[J].地震,1997,17(2):212-220.ZHAO Jia-liu,WANG Yan-qiong.Experi mental research onthe geoelectricty observation disturbance caused by the electricrail way at pingliang geoelectric station[J].Earthquake,1997,17(2):212-220.
[8]沈红会,张秀霞.减小直流输电对地磁观测影响的几种办法[J].中国地震,2005,21(4):530-535.SHEN Hong-hui,ZHANG Xiu-xia.The countermeasures totheinfluence of direct current transitting to geomagnetic observation[J].Earthquake Researchin China,2005,21(4):530-535.
[9]沈红会,周加新,张秀霞,等.直流输电对江苏地磁观测的影响分析[J].地震地磁观测与研究,2005,26(5):65-70.SHEN Hong-hui,ZHOUJia-xin,ZHANG Xiu-xia,et al.Theinfluence analysis of direct current transmit electricity to geo-magnetic observation[J].Seismological and Geomagnetic Obser-vation and Research,2005,26(5):65-70.
[10]戴琛.直流输电线路对磁测的影响[J].物探与化探,2008,32(4):409-411.DAI Chen.The effects of the DCtransmission circuit on mag-netic survey[J].Geophysical and Geochemical Exploration,2008,32(4):409-411.
[11]鞠勇,张波,崔翔,等.双层土壤中接地网接地电阻补偿测量法的修正曲线[J].电网技术,2003,27(1):44-46.JU Yong,ZHANG Bo,CUI Xiang,et al.Correction curve forgrounding resistance value of ground mesh buried in two-layersoils measured by compensating method[J].Power SystemTechnology,2003,27(1):44-46.
[12]杨慧娜,袁建生.利用Wenner四极法确定三层土壤模型[J].清华大学学报(自然科学版),2002,42(3):291-294.YANG Hui-na;YUAN Jian-sheng.Determination of a three-layer earth model from Wenner four-probe test data[J].Jour-nal of Tsinghua University(Science and Technology),2002,42(3):291-294.
[13]Pollaczeck F.Uber die induktionswirkungen einer wechel-stromein-fachleitung[J].Elect Nachrichten,1926.
[14]Lucca G.Mutual i mpedance between an overhead and a buriedline with earth return[C]∥IEE Conference on ElectromagnCompat.Manchester,UK,1994,396:80-84.
[15]Uribe F A.Calculating mutual ground i mpedances between o-verhead and buried cables[J].IEEE Trans on Power Del,2008,50(1):198-203.
[16]Legrand X,Xemard A.A Quasi-Monte Carlo integrationmethod applied to the computation of the Pollaczeck integral[J].IEEE Trans Power Delivery,2008,23(3):1527-1534.
[2]GB/T19531.2-2004地震台站观测环境技术要求第2部分:电磁观测[S],2004.
[3]徐学恭,田山.津滨轻轨地磁干扰范围的实验研究[J].地震地磁观测与研究,2008,29(6):41-44.XU Xue-gong,TI ANShan.The experi mental study of geomag-netic disturbance of Jinbin light rail[J].Seismological and Geo-magnetic Observation and Research,2008,29(6):41-44.
[4]于政轩,李勇,王治业.大连轻轨客车运行对地磁观测环境干扰的测试与分析[J].地震地磁观测与研究,2004,25(6):55-62.YU Zheng-xuan,LI Yong,WANG Zhi-ye.The test and analy-sis of the influence of Dalian City railcar on the environment ofgeomagnetic observation[J].Seismological and GeomagneticObservation and Research,2004,25(6):55-62.
[5]马钦忠,王炜.上海市地铁对地磁观测影响的实验分析[J].地震地磁观测与研究,2004,25(5):24-29.MA Qin-zhong,WANG Wei.The experi mental researchfor theinfluence of the subway in Shanghai to geomagnetic observation[J].Seismological and Geomagnetic Observation and Research,2004,25(5):24-29.
[6]朱铁栓.电气化铁路对地电观测台影响的研究[J].铁道通信信号,2009,45(4):50-51.ZHU Tie-shuan.Study of theinfluence of electrified rail ways togeo-electricity observation stations[J].Rail way Signalling&Communication,2009,45(4):50-51.
[7]赵家骝,王燕琼.电气化铁路对平凉地震地电观测干扰的实验研究[J].地震,1997,17(2):212-220.ZHAO Jia-liu,WANG Yan-qiong.Experi mental research onthe geoelectricty observation disturbance caused by the electricrail way at pingliang geoelectric station[J].Earthquake,1997,17(2):212-220.
[8]沈红会,张秀霞.减小直流输电对地磁观测影响的几种办法[J].中国地震,2005,21(4):530-535.SHEN Hong-hui,ZHANG Xiu-xia.The countermeasures totheinfluence of direct current transitting to geomagnetic observation[J].Earthquake Researchin China,2005,21(4):530-535.
[9]沈红会,周加新,张秀霞,等.直流输电对江苏地磁观测的影响分析[J].地震地磁观测与研究,2005,26(5):65-70.SHEN Hong-hui,ZHOUJia-xin,ZHANG Xiu-xia,et al.Theinfluence analysis of direct current transmit electricity to geo-magnetic observation[J].Seismological and Geomagnetic Obser-vation and Research,2005,26(5):65-70.
[10]戴琛.直流输电线路对磁测的影响[J].物探与化探,2008,32(4):409-411.DAI Chen.The effects of the DCtransmission circuit on mag-netic survey[J].Geophysical and Geochemical Exploration,2008,32(4):409-411.
[11]鞠勇,张波,崔翔,等.双层土壤中接地网接地电阻补偿测量法的修正曲线[J].电网技术,2003,27(1):44-46.JU Yong,ZHANG Bo,CUI Xiang,et al.Correction curve forgrounding resistance value of ground mesh buried in two-layersoils measured by compensating method[J].Power SystemTechnology,2003,27(1):44-46.
[12]杨慧娜,袁建生.利用Wenner四极法确定三层土壤模型[J].清华大学学报(自然科学版),2002,42(3):291-294.YANG Hui-na;YUAN Jian-sheng.Determination of a three-layer earth model from Wenner four-probe test data[J].Jour-nal of Tsinghua University(Science and Technology),2002,42(3):291-294.
[13]Pollaczeck F.Uber die induktionswirkungen einer wechel-stromein-fachleitung[J].Elect Nachrichten,1926.
[14]Lucca G.Mutual i mpedance between an overhead and a buriedline with earth return[C]∥IEE Conference on ElectromagnCompat.Manchester,UK,1994,396:80-84.
[15]Uribe F A.Calculating mutual ground i mpedances between o-verhead and buried cables[J].IEEE Trans on Power Del,2008,50(1):198-203.
[16]Legrand X,Xemard A.A Quasi-Monte Carlo integrationmethod applied to the computation of the Pollaczeck integral[J].IEEE Trans Power Delivery,2008,23(3):1527-1534.
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