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The Green's function of three-dimensional combined-layer soil model is firstly derived using simulated image method. Based on the specified soil model, the influence of soil model on the earth surface potential (ESP) is analyzed for different soil structure configurations. It is found that difference in soil model only changes the absolute value of ESP, but the influence of ESP difference can be ignored under certain conditions. And the physical mechanism for the effect of soil parameter change on ESP is explained theoretically. One of the challenges that have not been solved effectively is how to establish the proper soil model to calculate DC current flowing through the neutral point of transformer accurately. For this challenge, the criteria and threshold value for selecting the soil model reasonably are introduced. Therefore, the arbitrariness and blindness of selecting the soil model can be avoided. The results are useful for calculating accurate results, which can further provide theoretical references for selecting substations near the HVDC ground electrode.
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Keywords:
- Green's function /
- simulated image method /
- DC bias /
- soil model
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[2] Li X P, Wen X S, Markham P N, Liu Y L 2010 IEEE Trans. Power Del. 25 2504
[3] Liao K, He Z Y, Li X P 2012 Automation of Electric Power Systems 36 1 (in Chinese) [廖凯, 何正友, 李小鹏 2012 电力系统自动化 36 1]
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[14] Zhang B, Zeng R, He J, Zhao J, Li X, Wang Q, Cui X 2008 IET Gener. Transm. Distrib. 2 185
[15] Liu Q, Zheng J C, Li L C 2007 Ph. D. Dissertation (Beijing: Tsinghua University) (in Chinese) [刘曲, 郑健超, 李立涅 2007博士学位论文 (北京: 清华大学)]
[16] He J J, Ye H S, Lin F C, Li H, Lu Y X, Gui Z 2007 Proceedings of the CSEE 27 14 (in Chinese) [何俊佳, 叶会生, 林福昌, 李化, 卢毓欣, 桂重 2007中国电机工程学报 27 14]
[17] Li W F, Yang H G, Xu F W 2012 Journal of Sichuan University: Engineering Science Edition 44 161 (in Chinese) [李文峰, 杨洪耕, 徐方维 2012 四川大学学报:工程科学版 44 161]
[18] Shang Y, Huo B Z, Meng C N, Yuan J H 2010 Acta Phys. Sin. 59 8178 (in Chinese) [尚英, 霍丙忠, 孟春宁, 袁景和 2010 物理学报 59 8178]
[19] Li Y L, Wang M J 2009 Chin. Phys. B 18 2420
[20] Chow Y L, Yang J J, Srivastava K D 1992 J. Appl. Phys. 71 569
[21] Han Z Y, Wang H N, Yao J J, Han Z Y, Yang S W 2009 Acta Phys. Sin. 58 1608 (in Chinese) [韩子夜, 汪宏年, 姚敬金, 韩子夜, 杨守文 2009 物理学报 58 1608]
[22] Torabian A, Chow Y L 1999 IEEE Trans. Micpowave Theory Tech. 47 1777
[23] Shubair R M 2001 IEEE International Symposium on Antennas and Propagation Society Boston, January 7-13, 2001 p838
[24] Hou W B, Liu T Q, Li X Y 2010 Acta Phys. Sin. 59 3531 (in Chinese) [侯王宾, 刘天琪, 李兴源 2010 物理学报 59 3531]
[25] Xie G R 1991 Power System Grounding Technology (Beijing: China Electric Power Press) p96 (in Chinese) [解广润 1991电力系统接地技术 (北京: 中国电力出版社) 第96页]
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[1] Jiang X L, Wang S H, Zhang Z J, Hu J L, Hu Q 2010 IEEE Trans. Dielectr. Electr. Insul. 17 71
[2] Li X P, Wen X S, Markham P N, Liu Y L 2010 IEEE Trans. Power Del. 25 2504
[3] Liao K, He Z Y, Li X P 2012 Automation of Electric Power Systems 36 1 (in Chinese) [廖凯, 何正友, 李小鹏 2012 电力系统自动化 36 1]
[4] Wei D J 2008 Power System Technology 32 75 (in Chinese) [魏德军 2008 电网技术 32 75]
[5] Dong X H, Yang W, Tang C, Liu G 2009 High Voltage Engineering 35 1546 (in Chinese) [董晓辉, 杨威, 唐程, 刘刚 2009 高电压技术 35 1546]
[6] Boldue L, Granger M, Saintonge J 2005 IEEE Trans. Power Del. 20 163
[7] Zeng R, Yu Z Q, He J L, Zhang B, Niu B 2011 IEEE Trans. Power Del. 26 2785
[8] Zhu Y Y, Jiang W P, Zeng Z H, Yin Y H 2005 Proceedings of the CSEE 25 1 (in Chinese) [朱艺颖, 蒋卫平, 曾昭华, 印永华 2005 中国电机工程学报 25 1]
[9] Hao Z G, Yu Y, Zhang B H, Cheng L Y, Cao R F, Ding M S, Zhang J 2009 Electric Power Automation Equipment 29 10 (in Chinese) [郝治国, 余洋, 张保会, 程临燕, 曹瑞峰, 丁茂生, 张 军 2009 电力自动化设备 29 10]
[10] Villas J E T, Portela C M 2003 IEEE Trans. Power Del. 18 867
[11] Ren Z C, Xu J G, Zhang Y K, Zhen W, Wu G N 2011 Transactions of China Electrotechnical Society 26 256 (in Chinese) [任志超, 续建国, 张一坤, 甄威, 吴广宁 2011电工技术学报 26 256]
[12] Xiao C Y, Lei Y Z 2005 Acta Phys. Sin. 54 1950 (in Chinese) [肖春燕, 雷银照 2005 物理学报 54 1950]
[13] Liang C H, Zhu Q X 2002 Acta Phys. Sin. 51 2202 (in Chinese) [梁昌洪, 褚庆昕 2002 物理学报 51 2202]
[14] Zhang B, Zeng R, He J, Zhao J, Li X, Wang Q, Cui X 2008 IET Gener. Transm. Distrib. 2 185
[15] Liu Q, Zheng J C, Li L C 2007 Ph. D. Dissertation (Beijing: Tsinghua University) (in Chinese) [刘曲, 郑健超, 李立涅 2007博士学位论文 (北京: 清华大学)]
[16] He J J, Ye H S, Lin F C, Li H, Lu Y X, Gui Z 2007 Proceedings of the CSEE 27 14 (in Chinese) [何俊佳, 叶会生, 林福昌, 李化, 卢毓欣, 桂重 2007中国电机工程学报 27 14]
[17] Li W F, Yang H G, Xu F W 2012 Journal of Sichuan University: Engineering Science Edition 44 161 (in Chinese) [李文峰, 杨洪耕, 徐方维 2012 四川大学学报:工程科学版 44 161]
[18] Shang Y, Huo B Z, Meng C N, Yuan J H 2010 Acta Phys. Sin. 59 8178 (in Chinese) [尚英, 霍丙忠, 孟春宁, 袁景和 2010 物理学报 59 8178]
[19] Li Y L, Wang M J 2009 Chin. Phys. B 18 2420
[20] Chow Y L, Yang J J, Srivastava K D 1992 J. Appl. Phys. 71 569
[21] Han Z Y, Wang H N, Yao J J, Han Z Y, Yang S W 2009 Acta Phys. Sin. 58 1608 (in Chinese) [韩子夜, 汪宏年, 姚敬金, 韩子夜, 杨守文 2009 物理学报 58 1608]
[22] Torabian A, Chow Y L 1999 IEEE Trans. Micpowave Theory Tech. 47 1777
[23] Shubair R M 2001 IEEE International Symposium on Antennas and Propagation Society Boston, January 7-13, 2001 p838
[24] Hou W B, Liu T Q, Li X Y 2010 Acta Phys. Sin. 59 3531 (in Chinese) [侯王宾, 刘天琪, 李兴源 2010 物理学报 59 3531]
[25] Xie G R 1991 Power System Grounding Technology (Beijing: China Electric Power Press) p96 (in Chinese) [解广润 1991电力系统接地技术 (北京: 中国电力出版社) 第96页]
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