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高压电器  2014 

大地分层结构条件下架空线路系统导线― 地回路阻抗的计算分析

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Keywords: 大地分层结构,复数镜像法,导线―地回路,阻抗,频率,土壤电阻率,土层厚度

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Abstract:

架空线路系统导线―地回路阻抗是输电线路过电压防护和电磁兼容研究的重要参数。笔者将大地视为水平分层结构,运用复数镜像法,给出了大地水平分层时架空线路系统导线―地回路阻抗的计算方法,验证了该计算方法的正确性;结合中国特高压输电线路实例,计算分析了大地分层结构条件下架空线路系统导线―地回路阻抗的变化规律。结果表明文中方法克服了Carson公式计算结果频率性能较差的缺点,具有更高的计算准确度;架空线路导线―地回路阻抗随频率和第1层土壤厚度的增加而增大且有饱和趋势,第1层土壤的电阻率对导线―地回路阻抗有明显影响。

References

[1]  AMETANI A,YONEDA T,BABA Y,et al.An investigation of earth-return impedance between overhead and underground conductors and its approximation[J]. IEEE Transaction on Electromagnetic Compatibility,2010,51(3):860-867.
[2]  CARSON J R.Wave propagation in overhead wires with ground return[J]. Bell System Technical Journal,1926(5):539-554.
[3]  RACHIDI F,NUCCI C A,IANOZ M,et al.Influence of a lossy ground on lightning-induced voltages on overhead lines[J]. IEEE Transactions on Electromagnetic Compatibility,1996,38(3):250-263.
[4]  ORZAN D.Time-domain low frequency approximation for off-diagonal terms of the ground impedance matrix[J]. IEEE Transactions on Electromagnetic Compatibility,1997,39(1):64.
[5]  LU Tiebing,CUI Xiang,LI Lin.Transient analysis of aerial multiconductor transmission lines with branch[J]. IEEE Transactions on Magnetic,2001,37(5):3298-3302.
[6]  何金良,曾 嵘.电力系统接地技术[M]. 北京:科学出版社,2007.
[7]  郭 剑,邹 军,何金良,等.水平分层土壤中点电流源格林函数的递推算法[J].中国电机工程学报,2004,24(7):101-105. GUO Jian,ZOU Jun,HE Jinliang,et al.Recursive method to obtain analytic expressions of green’s functions in multi-layer soil by computer[J]. Proceeding of the CSEE,2004,24(7):101-105.
[8]  齐 磊,卢铁兵,张重远,等.考虑多层土壤时架空线的瞬态分析[J]. 中国电机工程学报,2003,23(5):66-69. QI Lei,LU Tiebing,ZHANG Zhongyuan,et al.Transient analysis of overhead lines with multi-layer soil[J]. Proceeding of the CSEE,2003,23(5):66-69.
[9]  TSIAMITROS D A,PAPAGIANNIS G K,LABRIDIS D P,et al.Earth return path impedances of underground cables for the two-layer earth case[J]. IEEE Transactions on Power Delivery,2005,PWRD-20(3):2174-2181.
[10]  TSIAMITROS D A,PAPAGIANNIS G K.Earth return Impedances of conductor arrangements in multi-layer soils-Part I:Theoretical model[J]. IEEE Transactions on Power Delivery,2008,23(4):2392-2400.
[11]  DERI A,TEVEN G,SYMLYEN A,et al.The complex ground return plane: A simplified model for homogeneous and multi-layer earth return[J]. IEEE Transactions on PAS,1981,100(8):3686-3693.
[12]  舒印彪,刘泽洪,高理迎,等.±800 kV 6 400 MW 特高压直流输电工程设计[J]. 电网技术,2006,30(1):1-8. SHU Yinbiao,LIU Zehong,GAO Liying,et al.A preliminary exploration for design of ±800 kV UHVDC project with transmission capacity of 6 400 MW[J]. Power System Technology,2006,30(1):1-8.
[13]  杨 勇,陆家榆,鞠 勇.交流线路与±800 kV直流线路同走廊时的地面混合电场研究[J].电网技术,2009,33(15):54-59. YANG Yong,LU Jiayu,JU Yong.Study on the hybrid electric field over the ground surface under AC lines and ±800 kV DC lines in the same corridor[J]. Power System Technology,2009,33(15):54-59.
[14]  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 on electromagnetic environment of UHVDC and EHVAC transmission lines erected in a common corridor[J]. Power System Technology,2010,34(2):14-19.
[15]  RACHIDI F,NUCCI C A,IANOZ M,et al.Influence of a lossy ground on lightning-induced voltages on overhead lines[J]. IEEE Transaction on Electromagnetic Compatibility,2009,38(3):250-264.
[16]  RACHIDI F.A Review of field-to-transmission line coupling models with special emphasis to lightning-induced voltages on overhead lines[J]. IEEE Transaction on Electromagnetic Compatibility,2009,54(4):898-911.
[17]  PAPADOPOULOS T A,PAPAGIANNIS G K.Influence of earth permittivity on overhead transmission line earth-return impedances[C]//2007 IEEE Conference on Power Technology.[S.l.]:IEEE,2007:790-795.

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