| 特高压输电线路潜供电流的计算分析 |
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| 引用本文： | 李召兄,文俊,苗文静,刘玉,项颂,肖湘宁.特高压输电线路潜供电流的计算分析[J].现代电力,2010,27(1):6-11. |
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| 作者姓名： | 李召兄 文俊 苗文静 刘玉 项颂 肖湘宁 |
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| 作者单位： | 1. 华北电力大学电气与电子工程学院,北京,102206
2. 山东电力超高压公司,山东济南,250021 |
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| 摘 要： | 特高压输电线路的潜供电弧燃烧时间长,如果不能及时熄灭,将造成单相自动重合闸失败,从而影响供电安全和系统稳定。研究了特高压输电线路的潜供电流。通过建立输电系统的集中参数模型,利用电路理论推导了单回线容性、感性及总潜供电流的计算公式。该公式考虑了弧道电阻的影响,可针对线路无补偿(并联电抗器不加中性点小电抗)和有补偿(并联电抗器加中性点小电抗)情况计算线路任意点的潜供电流。该公式可精确计算短距离单回输电线路的潜供电流。依据该公式对我国在建的淮南—上海特高压输电工程的潜供电流进行计算,分析探讨了补偿方式、故障点位置及弧道电阻等因素对潜供电流的影响作用。
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| 关 键 词： | 特高压 潜供电流 集中参数 分布参数 弧道电阻 补偿方式 |
Calculation Analysis of Secondary Arc Current on UHV Transmission Lines |
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| Li Zhaoxiong,Wen Jun,Miao Wenjing,Liu Yu,Xiang Song,Xiao Xiangning.Calculation Analysis of Secondary Arc Current on UHV Transmission Lines[J].Modern Electric Power,2010,27(1):6-11. |
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| Authors: | Li Zhaoxiong Wen Jun Miao Wenjing Liu Yu Xiang Song Xiao Xiangning |
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| Affiliation: | Li Zhaoxiong1,Wen Jun1,Miao Wenjing2,Liu Yu1,Xiang Song1,Xiao Xiangning1 (1.School of Electrical , Electronic Engineering,North China Electric Power University,Beijing 102206,China,2.Extrahigh Power Subcompany of SEPCO,Jinan 250021,China) |
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| Abstract: | Since the combustion of secondary arcs in UHV transmission lines is long,if these arcs can't be extinguished in time,the single-phase automatic reclosure would be failed,thus having bad effect on the supply security and system stability.As a result,it is necessary to study the secondary arc currents on UHV transmission lines.On the base of establishing lumped parameter model of the transmission system,the calculation formulas of capacitance,inductance and total secondary arc currents are deduced by using th... |
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| Keywords: | UHV secondary arc current lumped parameter distributed parameter arc resistance compensation schemes |
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