不同电压等级电网GIC水平的比较研究
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摘要
太阳磁场变化产生的地磁感应电流(GIC)直接损伤电力设备,威胁电网的运行安全。阐述了电网GIC的成因、影响以及损伤电网设备的本质,给出了不同电压等级电网GIC水平的监测数据和计算数据,比较研究了电网GIC水平和影响因素,分析了我国未来电网的灾害风险和灾害防治问题。
Geomagnetically induced current(GIC) which is the result of solar magnetic field's fluctuation can directly damage electrical equipment and threaten the safe operation of power grid.This paper explains the cause,influence of GIC,and the nature of electrical equipments damage;gives the monitoring data and calculations of GIC in different voltage levels;makes a comparative study on GIC levels in power grid and its factors;and analyze the risk and disaster prevention of our future power grid.The conclusion is of great significance to the construction and safe operation of large grid of UHV in our country.
Geomagnetically induced current(GIC) which is the result of solar magnetic field's fluctuation can directly damage electrical equipment and threaten the safe operation of power grid.This paper explains the cause,influence of GIC,and the nature of electrical equipments damage;gives the monitoring data and calculations of GIC in different voltage levels;makes a comparative study on GIC levels in power grid and its factors;and analyze the risk and disaster prevention of our future power grid.The conclusion is of great significance to the construction and safe operation of large grid of UHV in our country.
引文
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[2]J G Kappenman,V D Albertson.The GeomagneticStorms[J].IEEE Spectrum Magazine,1990,27(3):27-33.
[3]王梅义,吴竟昌,蒙定中.大电网系统技术[M].2版.北京:中国电力出版社,1995:6.
[4]刘连光,刘春明,张冰,等.我国广东电网几次强磁暴影响事件[J].地球物理学报,2008,51(4):976-981.
[5]刘林玉,谢学武.500 kV主变压器异常声音分析[J].高电压技术,2005,31(4):85-87.
[6]张建平,潘星.500 kV变压器异常噪声与振动的原因分析[J].浙江电力,2006,3:6-10.
[7]Liu Chunming,Liu Lianguang,Risto Pirjola,etc.Calcula-tion of GIC in mid-low-latitude power grids based onthe plane wave method:A preliminary case study[J].Space Weather,2009,7:1 029-2 008.
[8]Gaston Fischer.Electromagnetic induction effects at anocean coast t[J].Proceeding of the IEEE,1979,67(7):1 050-1 060.
[9]Parkinson Fw Jones.The Geomagnetic Coast Effect[J].Reviews of Geophysics and Space Physics,1979,17(8):1 999-2 015.
[10]刘连光,刘春明,张冰.磁暴对我国特高压电网影响问题的研究[J].电网技术,2009,33(11):1-6.
[11]中国地震局地球物理研究所.磁暴报告[R].
[12]魏奉思.空间天气学[J].地球物理学进展:增刊,1999,14:1-7.
[13]魏奉思.空间天气学的基本问题[J].中国基础科学.科学前沿,2000.7:9-13.
[14]汪景.太阳剧烈活动与空间灾害天气[J].紫金山天文台台刊,2003,22(1):48-56.
[15]刘振兴.中国空间风暴探测计划和国际与日共存计划[J].地球物理学报,2005,49(3):724-730.
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