| 计及工频电压的特高压变电站雷电侵入波过电压分析 |
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| 引用本文： | 陈水明,王威,于化鹏,杨鹏程.计及工频电压的特高压变电站雷电侵入波过电压分析[J].高电压技术,2010,36(8):1852-1857. |
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| 作者姓名： | 陈水明 王威 于化鹏 杨鹏程 |
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| 作者单位： | 清华大学电机系电力系统及发电设备控制和仿真国家重点实验室,北京,100084 |
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| 基金项目： | 国家自然科学基金(50737001)~~ |
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| 摘 要： | 线路的工频电压越高对雷电侵入波过电压的影响就越大,我国现行的计算雷电侵入波过电压的规程都没有考虑线路的工频电压。为了研究计及工频电压的特高压变电站侵入波过电压,基于淮南1000kV特高压GIS变电站,采用电磁暂态计算程序PSCAD/EMTDC建模并研究了不同的工频电压对变电站雷电侵入波过电压的影响。结果显示,工频电压对雷电侵入波过电压的影响显著。因此,提出了3种考虑工频电压的计算方法:均匀分布法、正态分布法和比例法,由3种计算方法得到的统计过电压的值分别为2364、2459、2271kV。通过比较可知,比例法是一种较为合理的方法,推荐电力系统采用比例法设计特高压变电站的绝缘水平。
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| 关 键 词： | 工频电压 雷电侵入波过电压 特高压变电站 绝缘水平 计算方法 比例法 |
Analysis on UHV Substation Lightning Intruding Over-voltage Considering Power Frequency Voltage |
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| CHEN Shui-ming
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WANG Wei
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YU Hua-peng
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YANG Peng-cheng.Analysis on UHV Substation Lightning Intruding Over-voltage Considering Power Frequency Voltage[J].High Voltage Engineering,2010,36(8):1852-1857. |
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| Authors: | CHEN Shui-ming WANG Wei YU Hua-peng YANG Peng-cheng |
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| Affiliation: | CHEN Shui-ming,WANG Wei,YU Hua-peng,YANG Peng-cheng(State Key Laboratory of Control and Simulation of Power Systems and Generation Equipments,Department of Electrical Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | The power frequency voltage is not under consideration in regulations for calculating lightning over-voltage in China.To research the effect of power frequency voltage on lightning over-voltage,we constructed a PSCAD/EMTDC model basing on Huainan 1000 kV UHV substation.The results indicate that this kind of effect is too remarkable to ignore.Consequently,three methods to consider power frequency voltage are discussed,i.e.uniform distribution method,normal distribution method and proportional distribution me... |
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| Keywords: | power frequency voltage lightning intruding over-voltage UHV substation insulation level calculation methods proportional distribution method |
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