| 鲁中山区220kV输电线路雷击过电压与防护研究 |
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| 引用本文： | 宋凯,陈佳佳.鲁中山区220kV输电线路雷击过电压与防护研究[J].电气开关,2020(2):46-50,55. |
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| 作者姓名： | 宋凯 陈佳佳 |
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| 作者单位： | 山东理工大学电气与电子工程学院 |
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| 摘 要： | 以鲁中山区某220kV输电线路作为研究对象,根据实际参数采用杆塔多波阻抗模型模拟了雷电流、输电线路、杆塔、绝缘子串和避雷器,建立了雷击输电线路的仿真模型。本文基于ATP-EMTP电磁暂态分析软件,分析了线路避雷器组合安装和接地电阻对输电线路耐雷水平的影响。仿真结果显示:输电线路按策略分相组合加装避雷器和降低杆塔的接地电阻可以有效保护输电线路的安全,提升电网的安全经济效益。
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| 关 键 词： | 电力系统 电网 防雷 ATP-EMTP仿真 |
Study on Lightning Overvoltage and Protection of 220kV Transmission Line in the Mountain Area of Central Shandong |
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| SONG Kai,CHEN Jia-jia.Study on Lightning Overvoltage and Protection of 220kV Transmission Line in the Mountain Area of Central Shandong[J].Electric Switchgear,2020(2):46-50,55. |
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| Authors: | SONG Kai CHEN Jia-jia |
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| Affiliation: | (School of Electrical and Electronic Engineering,Shandong University of Technology,Zibo 255049,China) |
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| Abstract: | Taking a 220kV transmission line in the mountainous area of central Shandong Province as the research object,the lightning current,transmission line,tower,insulator string and arrester are simulated by tower multi wave impedance model according to the actual parameters,and the simulation model of lightning stroke transmission line is established.Based on ATP-EMTP electromagnetic transient analysis software,this paper analyzes the influence of line arrester combination installation and grounding resistance on the lightning withstand level of transmission line.The simulation results show that the combination of adding lightning arrester and reducing the grounding resistance of tower can effectively protect the safety of transmission line and improve the safety and economic benefits of power grid. |
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| Keywords: | electric power system power grid lightning protection ATP-EMTP simulation |
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