| 复合阻抗对输电线路零序参数的影响 |
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| 引用本文： | 王汉斌,张园园,吕艳萍,潘露.复合阻抗对输电线路零序参数的影响[J].电力系统及其自动化学报,2006,18(4):87-90. |
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| 作者姓名： | 王汉斌 张园园 吕艳萍 潘露 |
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| 作者单位： | 武汉大学电气工程学院,武汉,430072 |
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| 摘 要： | 为了降低逐杆接地的光纤复合架空地线(OPGW)上的能量损耗,在OPGW与地之间安装复合阻抗,对架设OPGW的输电线路零序参数进行了分析,并给出了复合阻抗导通个数不同的情况下,输电线路零序阻抗的计算公式。结合一条实际的220kV的输电线路,研究了复合阻抗的接入对输电线路的零序参数和接地故障时零序电流所产生的影响,用包含直流的电磁暂态(EM TDC)仿真验证了该分析方法的有效性。
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| 关 键 词： | 光纤复合架空地线 复合阻抗 零序阻抗 接地故障 包含直流的电磁暂态 |
| 文章编号： | 1003-8930（2006）04-0087-04 |
| 收稿时间： | 2005-09-05 |
| 修稿时间： | 2005-11-15 |
Influence on Zero-Sequence Parameters of Transmission Line Due to Composite Impedance |
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| WANG Han-bin,Zhang Yuan-yuan,LV Yan-ping,PAN Lu.Influence on Zero-Sequence Parameters of Transmission Line Due to Composite Impedance[J].Proceedings of the CSU-EPSA,2006,18(4):87-90. |
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| Authors: | WANG Han-bin Zhang Yuan-yuan LV Yan-ping PAN Lu |
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| Affiliation: | School of Electrical Engineering, Wuhan University, Wuhan 430072, China |
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| Abstract: | In order to reduce the power losses of OPGW installed tower by tower,composite impedance is installed between OPGW and ground.This paper analyzes the zero-sequence parameters of transmission line equipped with OPGW,and gives a calculation formula of zero-sequence impedance when different numbers of composite impedance are switched on.Then the influence on zero-sequence parameters and zerosequence current under grounding fault is studied on apractical 220 kV transmission line.EMTDC simulation proves the validity of the method. |
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| Keywords: | optical fiber composite overhead ground wire(OPGW) composite impedance zero-sequence impedance grounding fault electromagnetic transients including direct current(EMTDC) |
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