特高压交流输电线路正常运行对埋地油气管道电磁影响及防护措施研究
|
摘要
中国电力和油气输送网络发展迅速,为了研究特高压交流输电线路正常运行时对埋地油气管道电磁影响,针对皖电东送特高压输电线路和川气东输管道进行了建模仿真。结合走廊规划和实际工程参数,采用CDEGS建立了1 000 kV交流输电线路与埋地油气管道交叉和平行的仿真模型。针对输电线路单回运行和双回运行,仿真研究了平行交叉段管道干扰电压及交流电流密度分布,并给出了应用固态去耦合器的裸铜带敷设的防护措施,降低管道交流干扰电压。结果表明:输电线路正常运行时,油气管道会产生中度交流腐蚀影响;管道应用固态去耦合器与裸铜带接地,能够有效降低管道干扰电压,并较小交流腐蚀的可能性。该研究成果对特高压输电工程和油气管道的安全运行具有重要的实际工程价值,并可为相关工程设计提供一定参考。
To reveal the electromagnetic effect from UHV AC transmission line on buried oil/gas pipeline,modeling and simulations are conducted for the oil/gas pipeline of the natural gas transmission project from Sichuan Province to eastern region and the UHV transmission line of the power transfer project from Anhui Province to eastern region.According to the engineering parameters and common corridor design,computational models of the 1 000 kV transmission line and the berried oil/gas pipeline in respective cross arrangement and parallel arrangement are established using the software CDEGS.Then the interfering voltage and AC current density distributions on the pipeline are calculated in the conditions of single-circuit operation and double-circuit operation of the transmission line. And AC corrosion protection of the pipeline by applying solid-state decoupler with bare copper belt is given to reduce the interfering voltage on the pipeline. The results show that the pipeline will suffer moderate AC corrosion in normal operation of the transmission line,and the possibility of pipeline's AC corrosion and the interfering voltage can be effectively reduced by grounding pipeline via bare copper belt and solid-state decoupler.This research may be helpful for safe operation of UHV transmission line and oil/gas pipeline,and may provide a reference for design of relative engineering.
To reveal the electromagnetic effect from UHV AC transmission line on buried oil/gas pipeline,modeling and simulations are conducted for the oil/gas pipeline of the natural gas transmission project from Sichuan Province to eastern region and the UHV transmission line of the power transfer project from Anhui Province to eastern region.According to the engineering parameters and common corridor design,computational models of the 1 000 kV transmission line and the berried oil/gas pipeline in respective cross arrangement and parallel arrangement are established using the software CDEGS.Then the interfering voltage and AC current density distributions on the pipeline are calculated in the conditions of single-circuit operation and double-circuit operation of the transmission line. And AC corrosion protection of the pipeline by applying solid-state decoupler with bare copper belt is given to reduce the interfering voltage on the pipeline. The results show that the pipeline will suffer moderate AC corrosion in normal operation of the transmission line,and the possibility of pipeline's AC corrosion and the interfering voltage can be effectively reduced by grounding pipeline via bare copper belt and solid-state decoupler.This research may be helpful for safe operation of UHV transmission line and oil/gas pipeline,and may provide a reference for design of relative engineering.
引文
[1]刘振亚.特高压电网[M].北京:中国经济出版社,2005:14-35.LIU Zhenya.Ultra-high voltage grid[M].Beijing:China Economic Press,2005.
[2]中国电力科学研究院.1 000 kV特高压交流同塔双回线路对金属管线影响及防护研究[R].北京:中国电力科学研究院,2009.China Electric Power Research Institute.Influence andmitigation of 1 000 kV UHV AC double-circuit transmission line on metallic pipeline[R].Beijing:China Electric Power Research Institute,2009.
[3]焦保利,谢辉春,张广洲,等.特高压交流架空线路与油气管道的防护间距[J].高电压技术,2009,35(8):1807-1811.JIAO Baoli,XIE Huichun,ZHANG Guangzhou,et a1.Protection clearance between UHV AC overhead line and oil or gas pipe-lines[J].High Voltage Engineering,2009,35(8):1807-1811.
[4]王新华,杨国勇,黄海,等.埋地钢质管道交流杂散电流腐蚀规律研究[J].中国腐蚀与防护学报,2013(4):293-297.WANG Xinhua,YANG Guoyong,HUANG Hai,et a1.ACstray current corrosion law of buried steel pipeline[J].Journal of Chinese Society for Corrosion and Protection,2013(4):293-297.
[5]DAWALBI F P,SOUTHEY R D.Analysis of electrical interference from power lines to gas pipelines Part I:Computation methods[J].IEEE Transactions on Power Delivery,1989,4(3):1840-1846.
[6]DAWALBI F P,SOUTHEY R D.Analysis of electrical interference from power lines to gas pipelines Part II:Parametric analysis[J].IEEE Transactions on Power Delivery,1990,5(1):415-421.
[7]齐磊,原辉,李琳,等.架空电力线路故障状况下对埋地金属管道感性耦合的传输线计算模型[J].电工技术学报,2013,28(6):264-270.QI Lei,YUAN Hui,LI Lin,et a1.Transmission line modelling of inductive coupling of overhead power lines subjected to grounding fault to underground metal pipeline[J].Transactions of China Electrotechnical Society,2013,28(6):264-270.
[8]安宁,彭毅,艾宪仓,等.雷击超高压交流输电线路对埋地输油输气管道的电磁影响[J].高电压技术,2012,38(11):2881-2888.AN Ning,PENG Yi,AI Xiancang,et al.Elevtromagnetic effects on underground oil/gas pipeline of the lighting strike on EHV AC transmission line[J].High Voltage Engineering,2012,38(11):2881-2888.
[9]董铁柱,白锋,李海鹏,等.新疆750 kV二通道交流输电线路对邻近输油输气管道电磁影响的仿真研究[J].电力建设,2013(8):40-46.DONG Tiezhu,BAI Feng,LI Haipeng,et a1.Simulation study on electromagnetic influence of 750 kV Double circuit transmission lines in Xinjiang on nearby petroleum&gas pipelines[J].Electric Power Construction,2013(8):40-46.
[10]刘国.固态去耦合器在管道交流干扰防护中的应用[J].油气储运,2016(4):449-456.LIU Guo.Application of solid-stated ecoupler in ACinterference mitigation of pipelines[J].Oil&Gas Storage and Transportation,2016(4):449-456.
[11]韩非.固态去耦合器与钳位式排流器的排流效果对比[J].腐蚀与防护,2015(12):1186-1189.HAN Fei.Comparison of effectiveness of AC interference mitigation between solid state decoupler and clamping diode[J].Corrosion&Protection,2015(12):1186-1189.
[12]滕延平.杂散电流干扰段管道检测与减缓实践研究[D].天津:天津大学,2012.TENG Yanping.Research on the inspection and mitigation practices of stray current in pipelines[D].Tianjin:Tianjin University,2012.
[13]张勇,郎需军,杨博.1 000 kV特高压输电线路导线排列方式和换位对地线能耗的影响[J].电网技术,2011,35(4):21-24.ZHANG Yong,LANG Xujun,YANG Bo.Influences of conductor arrangement and line transposition adopted in1 000 kV transmission project on power loss in ground wire[J].Power System Technology,2011,35(4):21-24.
[14]蒋俊.交流线路正常运行时对平行敷设油气管道的电磁影响[J].电网技术,2008,32(2):78-80.JIANG Jun.Electromagnetic influence of normally operating AC power transmission line on gas/oil pipeline parallel to transmission line[J].Power System Technology,2008,32(2):78-80.
[15]郭剑,曹玉杰,胡士信,等.交流输电线路对输油输气管道电磁影响的限值[J].电网技术,2008,32(2):17-20.GUO Jian,CAO Yujie,HU Shixin,et a1.Limit values of electromagnetic influence of adjacent AC transmission lines on oil/gas pipelines[J].Power System Technology,2008,32(2):17-20.
[16]牛晓民.电力系统接地分析软件CDEGS简介[J].华北电力技术,2004(12):29-31.NIU Xiaomin.Introduction of CDEGS[J].North China Electric Power,2004(12):29-31.
[17]蒋俊,郭剑,陆家榆.交流输电线路单相接地故障对输油输气管道的电磁影响与线路参数的关系[J].电网技术,2010,34(6):10-13.JIANG Jun,GUO Jian,LU Jiayu.Relation between transmission line parameters and electromagnetic impact on petroleum/gas pipelines due to single-phase earth fault in AC transmission line[J].Power System Technology,2010,34(6):10-13.
[18]COMMITTEE P N T.AC corrosion state of the art corrosion rate,mechanism,and mitigation requirements[R].Houston:NACE International,2008.
[19]国标埋地钢制管道交流干扰防护技术标准:GB/T50698-2011[S].2011.Standard for AC interference mitigation of buried steel pipelines:GB/T 50698-2011[S].2011.
[20]Evaluation of AC corrosion likelihood of buried pipelines application to cathodically protected pipelines:CEN/TS15280:2006[S].2006.
[21]1 000 kV架空输电线路设计规范:GB 50665-2011[S].2011.Code for design of 1 000 k V overhead transmission line:GB 50665-2011[S].2011.
[2]中国电力科学研究院.1 000 kV特高压交流同塔双回线路对金属管线影响及防护研究[R].北京:中国电力科学研究院,2009.China Electric Power Research Institute.Influence andmitigation of 1 000 kV UHV AC double-circuit transmission line on metallic pipeline[R].Beijing:China Electric Power Research Institute,2009.
[3]焦保利,谢辉春,张广洲,等.特高压交流架空线路与油气管道的防护间距[J].高电压技术,2009,35(8):1807-1811.JIAO Baoli,XIE Huichun,ZHANG Guangzhou,et a1.Protection clearance between UHV AC overhead line and oil or gas pipe-lines[J].High Voltage Engineering,2009,35(8):1807-1811.
[4]王新华,杨国勇,黄海,等.埋地钢质管道交流杂散电流腐蚀规律研究[J].中国腐蚀与防护学报,2013(4):293-297.WANG Xinhua,YANG Guoyong,HUANG Hai,et a1.ACstray current corrosion law of buried steel pipeline[J].Journal of Chinese Society for Corrosion and Protection,2013(4):293-297.
[5]DAWALBI F P,SOUTHEY R D.Analysis of electrical interference from power lines to gas pipelines Part I:Computation methods[J].IEEE Transactions on Power Delivery,1989,4(3):1840-1846.
[6]DAWALBI F P,SOUTHEY R D.Analysis of electrical interference from power lines to gas pipelines Part II:Parametric analysis[J].IEEE Transactions on Power Delivery,1990,5(1):415-421.
[7]齐磊,原辉,李琳,等.架空电力线路故障状况下对埋地金属管道感性耦合的传输线计算模型[J].电工技术学报,2013,28(6):264-270.QI Lei,YUAN Hui,LI Lin,et a1.Transmission line modelling of inductive coupling of overhead power lines subjected to grounding fault to underground metal pipeline[J].Transactions of China Electrotechnical Society,2013,28(6):264-270.
[8]安宁,彭毅,艾宪仓,等.雷击超高压交流输电线路对埋地输油输气管道的电磁影响[J].高电压技术,2012,38(11):2881-2888.AN Ning,PENG Yi,AI Xiancang,et al.Elevtromagnetic effects on underground oil/gas pipeline of the lighting strike on EHV AC transmission line[J].High Voltage Engineering,2012,38(11):2881-2888.
[9]董铁柱,白锋,李海鹏,等.新疆750 kV二通道交流输电线路对邻近输油输气管道电磁影响的仿真研究[J].电力建设,2013(8):40-46.DONG Tiezhu,BAI Feng,LI Haipeng,et a1.Simulation study on electromagnetic influence of 750 kV Double circuit transmission lines in Xinjiang on nearby petroleum&gas pipelines[J].Electric Power Construction,2013(8):40-46.
[10]刘国.固态去耦合器在管道交流干扰防护中的应用[J].油气储运,2016(4):449-456.LIU Guo.Application of solid-stated ecoupler in ACinterference mitigation of pipelines[J].Oil&Gas Storage and Transportation,2016(4):449-456.
[11]韩非.固态去耦合器与钳位式排流器的排流效果对比[J].腐蚀与防护,2015(12):1186-1189.HAN Fei.Comparison of effectiveness of AC interference mitigation between solid state decoupler and clamping diode[J].Corrosion&Protection,2015(12):1186-1189.
[12]滕延平.杂散电流干扰段管道检测与减缓实践研究[D].天津:天津大学,2012.TENG Yanping.Research on the inspection and mitigation practices of stray current in pipelines[D].Tianjin:Tianjin University,2012.
[13]张勇,郎需军,杨博.1 000 kV特高压输电线路导线排列方式和换位对地线能耗的影响[J].电网技术,2011,35(4):21-24.ZHANG Yong,LANG Xujun,YANG Bo.Influences of conductor arrangement and line transposition adopted in1 000 kV transmission project on power loss in ground wire[J].Power System Technology,2011,35(4):21-24.
[14]蒋俊.交流线路正常运行时对平行敷设油气管道的电磁影响[J].电网技术,2008,32(2):78-80.JIANG Jun.Electromagnetic influence of normally operating AC power transmission line on gas/oil pipeline parallel to transmission line[J].Power System Technology,2008,32(2):78-80.
[15]郭剑,曹玉杰,胡士信,等.交流输电线路对输油输气管道电磁影响的限值[J].电网技术,2008,32(2):17-20.GUO Jian,CAO Yujie,HU Shixin,et a1.Limit values of electromagnetic influence of adjacent AC transmission lines on oil/gas pipelines[J].Power System Technology,2008,32(2):17-20.
[16]牛晓民.电力系统接地分析软件CDEGS简介[J].华北电力技术,2004(12):29-31.NIU Xiaomin.Introduction of CDEGS[J].North China Electric Power,2004(12):29-31.
[17]蒋俊,郭剑,陆家榆.交流输电线路单相接地故障对输油输气管道的电磁影响与线路参数的关系[J].电网技术,2010,34(6):10-13.JIANG Jun,GUO Jian,LU Jiayu.Relation between transmission line parameters and electromagnetic impact on petroleum/gas pipelines due to single-phase earth fault in AC transmission line[J].Power System Technology,2010,34(6):10-13.
[18]COMMITTEE P N T.AC corrosion state of the art corrosion rate,mechanism,and mitigation requirements[R].Houston:NACE International,2008.
[19]国标埋地钢制管道交流干扰防护技术标准:GB/T50698-2011[S].2011.Standard for AC interference mitigation of buried steel pipelines:GB/T 50698-2011[S].2011.
[20]Evaluation of AC corrosion likelihood of buried pipelines application to cathodically protected pipelines:CEN/TS15280:2006[S].2006.
[21]1 000 kV架空输电线路设计规范:GB 50665-2011[S].2011.Code for design of 1 000 k V overhead transmission line:GB 50665-2011[S].2011.