卢铁兵;周象贤;李健;崔翔;

• 1:新能源电力系统国家重点实验室(华北电力大学)
• 2:中国电力工程顾问集团中南电力设计院

摘要(Abstract)：

基于有限元和有限体积法的混合方法,合理地考虑了直流电晕放电和交流电晕放电之间的相互影响,解决了交直流同塔输电线路地面电场的分布计算问题。通过小尺寸模型的实验了验证计算方法的有效性。针对一回800kV直流输电线路和两回500 kV交流输电线路同塔架设的实际情况,计算了不同运行方式下的地面电场的直流分量、交流分量和离子流密度的分布情况。计算结果表明,由于交流输电线路的电晕放电,地面电场直流分量和离子流密度会有所降低。同时,地面交、直流电场均随线路高度的升高而降低,但是工频电场的变化程度比直流电场要大。

关键词(KeyWords)： 电晕放电;电场;混合线路;离子流密度;数值计算

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金重点项目(51037001)~~

作者(Author): 卢铁兵;周象贤;李健;崔翔;

Email:

DOI: 10.13335/j.1000-3673.pst.2012.05.026

参考文献(References)：

• [1]Sarma M P.Corona performance of high-voltage transmission lines[M].Baldock:Research studies Press LTD,2000.
• [2]Li Wei,Zhang Bo,He Jinliang,et al.Ion flow field calculation ofmulti-circuit DC transmission lines[J].High Voltage Engineering,2008,34(12):2719-2725.
• [3]Liu Jie,Zou Jun,Tian Jihuan,et al.Analysis of electric field,ion flow density,and corona loss of same tower double-circuitHVDC lines using improved FEM[J].IEEE Transactions on PowerDelivery,2009,24(1):482-483.
• [4]Sarma M P,Janischewskyi W.Analysis of corona losses on DCtransmission lines,Part I:unipolar lines[J].IEEE Transactions onPower Apparatus and Systems 1969,88(5):718-731.
• [5]Sarma M P,Janischewskyj W.Analysis of corona losses on DCtransmission lines:II-bipolar lines[J].IEEE Transactions on PowerApparatus and Systems,1969,88(10):1476-1489.
• [6]Takuma T,Ikeda T,Kawamoto T.Calculation of ion flow fields ofHVDC transmission lines by the finite element method[J].IEEETransactions on Powe Apparatus and Systems,1981 100(12):4802-4810.
• [7]Takuma T,Kawamoto T.A very stable calculation method for ionflow fields of HVDC transmission lines[J].IEEE Transactions onPower Delivery,1987,2(1):189-198.
• [8]Lu Tiebing,Feng Han,Zhao Zhibin,et al.Analysis of the electricfield and ion current density under ultra high-voltage direct-currenttransmission lines based on finite element method[J].IEEETransactions on Magn.,2007,43(4):1221-1224.
• [9]甄永赞,崔翔,罗兆楠,等.直流输电线下存在建筑物时合成电场计算的有限元方法[J].中国电机工程学报,2011,31(9):120-125.Zhen Yongzan,Cui Xiang,Luo Zhaonan,et al.Finite element methodfor calculating total electric field of HVDC lines with underneathbuilding[J].Proceedings of the CSEE,2011,31(9):120-125(inChinese).
• [10]甄永赞,崔翔,罗兆楠,等.直流输电线路三维合成电场计算的有限元方法[J].电工技术学报,2011,26(4):153-160.Zhen Yongzan,Cui Xiang,Luo Zhaonan,et al.FEM for 3D totalelectric field calculation near HVDC lines[J].Transactions of ChinaElectrotechnical Society,2011,31(9):120-125(in Chinese).
• [11]Zhao T,Sebo S A,Kasten D G.Calculation of single phase AC andmonopolar DC hybrid corona effects[J].IEEE Transactions on PowerDelivery,1996,11(3):1454-1462.
• [12]杨勇,陆家榆,鞠勇.交流线路与800kV直流线路同走廊时的地面混合电场研究[J].电网技术,2009,39(15):54-59.Yang Yong,Lu Jiayu,Ju Yong.Study on the hybrid electric field overthe ground surface under AC lines and 800 kV DC lines in the samecorridor[J].Power System Technology,2009,39(15):54-59(inChinese).
• [13]吴桂芳,袁春峰,陆家榆,等.特高压直流线路与交流线路同走廊时混合电磁环境的计算[J].电网技术,2010,34(2):14-19.Wu Guifang,Yuan Chunfeng,Lu Jiayu,et al.Calculation onelectromagnetic environment of UHVDC and EHVAC transmissionlines erected in a common corridor[J].Power System Technology,2010,34(2):14-19(in Chinese).
• [14]Li W,Zhang B,He J,et al.Calculation of ion flow field ofAC-DC hybrid transmission line[J].IET Generation,Transmissionand Distribution,2009,3(10):911-918.
• [15]Meroth A M,Gerber T,Munz C D,et al.Numerical solution ofnonstationary charge coupled problems[J].Journal of Electrostatics,1999,45:177-198.
• [16]Levin P L,Hoburg J F.Donor cell-finite element description ofwire-duct precipitator fields,charges,and efficiencies[J].IEEETransactions on Industry Application,1990,4(26):662-670.
• [17]周象贤,卢铁兵,崔翔,等.基于有限元与有限体积法的直流输电线路合成电场计算方法研究[J].中国电机工程学报,2011,31(15):127-133.Zhou Xiangxian,Lu Tiebing,Cui Xiang,et al.A hybrid method forthe simulation of ion flow field of HVDC transmission lines based onfinite element method and finite volume method[J].Proceedings ofthe CSEE,2011,31(15):127-133(in Chinese).
• [18]Zhou X X,Cui X,Lu T B,et al.A time-efficient method for thesimulation of ion flow field of the AC-DC hybrid transmissionlines[J].IEEE Transaction on Magnetics,2012,48(2):731-734.
• [19]周象贤,卢铁兵,崔翔,等.邻近交流线路时直流输电线路电晕损失的计算与分析[J].中国电机工程学报,2011,31(31):211-218.Zhou Xiangxian,Lu Tiebing,Cui Xiang,et al.Corona loss analysisof high voltage DC transmission lines in close proximity of highvoltage AC transmission lines[J].Proceedings of the CSEE,2011,31(31):211-218(in Chinese).