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电网技术  2006 

青藏铁路110kV输变电工程五道梁和沱沱河变电站的接地系统设计

, PP. 60-64

Keywords: 青藏铁路,变电站,永冻土,分层土壤模型,接地电阻,接触电压,跨步电压,高电压技术,电力系统

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Abstract:

为青藏铁路供电的110kV沱沱河和五道梁变电站地处高寒永冻地区,如何在高寒永冻地区进行接地系统设计对变电站的建设十分重要。通过测试二次电缆和二次设备的绝缘耐受特性,提出可将地电位升高提高到5kV。采用电磁场数值计算方法对分层土壤中接地系统的电气参数进行计算,分析比较了各种可行的高寒冻土地区接地系统的设计方案,讨论了深垂直接地极的布置规律、水平地网的埋设深度、接地系统的均压优化布置对接地系统接地电阻、接触电压和跨步电压的影响。最终得出了坨坨河和五道梁两变电站的接地系统设计方案,并总结归纳了高寒冻土地区变电站接地系统的设计规律。

References

[1]  赵志斌,崔翔,张波,等.分层土壤中点电流源电流场计算的递推算法[J].华北电力大学学报,2003,30(1):22-25.
[2]  Zhao Zhibin,Cui Xiang,Zhang Bo,et al.Elimination method for calculation of current field in multi-layer soil[J].Journal of North China Electric Power University,2003,30(1):22-25.
[3]  李中新,袁建生,张丽萍.变电站接地网模拟计算[J].中国电机工程学报,1999,19(5):76-79.
[4]  Li Zhongxin,Yuan Jiansheng,Zhang Liping.Numerical analysis of substation grounding systems[J].Proceedings of the CSEE,1999,19(5):76-79.
[5]  鲁志伟,文习山,史艳玲,等.大型变电站接地网工频接地参数的数值计算[J].中国电机工程学报,2003,23(12):79-83.
[6]  Lu Zhiwei,Wen Xishan,Shi Yanling,et al.Numerical analysis of large substation grounding grids in industry frequency [J].Proceedings of the CSEE,2003,23(12):79-83.
[7]  张波,崔翔,赵志斌,等.大型变电站接地网的频域分析方法[J].中国电机工程学报,2002,22(9):59-63.
[8]  Zhang Bo,Cui Xiang,Zhao Zhibin,et al.Analysis of grounding grids at large scale substations in frequency domain[J].Proceedings of the CSEE,2002,22(9):59-63.
[9]  何金良,康鹏,曾嵘,等.青藏铁路110kV输变电工程五道梁和沱沱河变电站的土壤结构模型分析[J].电网技术,2005,29(20):10-14.
[10]  He Jinliang,Kang Peng,Zeng Rong,et al.Soil structural model analysis of Wudaoliang and Tuotuohe substations for 110kV Power transmission engineering of Qinghai-Tibet Railway[J].Power System Technology,2005,29(20):10-14.
[11]  DL/T621-1997.交流电气装置的接地[S].
[12]  文习山,蓝磊,许军,等.三峡电站允许地电位升高试验研究(I)[J].电网技术,2003,27(2):9-12.
[13]  Wen Xishang,Lan Lei,Xu Jun,et al.Test research on tolerable ground potential rise of three gorges hydroelectric power station-part I[J].Power System Technology,2003,27(2):9-12.
[14]  蓝磊,文习山,许军,等.三峡电站允许地电位升高试验研究(II) [J].电网技术,2003,27(3):5-7,22.
[15]  Lan Lei,Wen Xishang,Xu Jun,et al.Test research on tolerable ground potential rise of three gorges hydroelectric power station-part II [J].Power System Technology,2003,27(3):5-7, 22.
[16]  IEEE Std80-2000,IEEE guide for safety in AC substation grounding [S].
[17]  高延庆,何金良,曾嵘,等.非均匀土壤中变电站接地网优化设计[J].清华大学学报,2002,42(3):345-348.
[18]  Gao Yanqing,He Jinliang,Zeng Rong,et al.The optimal design of grounding systems in nonuniform soil[J].Journal of Tsinghua Univesity,2002,42(3):345-348.
[19]  He Jinliang,Gao Yanqing,Zeng Rong,et al.Optimal design of grounding system considering the influence of seasonal frozen soil layer[J].IEEE Trans on Power Delivery,2005,20(1):107-115.
[20]  He Jinliang,Zeng Rong,Gao Yanqing,et al.Seasonal influences on safety of substation grounding system[J].IEEE Trans on Power Delivery,2003,18(3):788-795.
[21]  孙为民.非均匀土壤中发变电站接地系统优化设计研究[D].北京:清华大学,2001.
[22]  Zou J,Zeng R,He J L,et al.Numerical green’s function of a point current source in horizontal multi-layer soils by utilizing the vector matrix pencil technique[J].IEEE Trans on Magnetics,2004,40(2): 730-733.
[23]  张波.变电站接地网频域电磁场数值计算方法研究及其应用[D].保定:华北电力大学,2003.

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