| 华北500kV紧凑型线路故障计算分析与改进措施 |
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| 引用本文： | 王黎明,孙保强,侯镭,傅观君,孟晓波,关志成.华北500kV紧凑型线路故障计算分析与改进措施[J].高电压技术,2009,35(9):2108-2113. |
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| 作者姓名： | 王黎明 孙保强 侯镭 傅观君 孟晓波 关志成 |
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| 作者单位： | 1. 清华大学深圳研究生院,深圳,518055
2. 国家电网公司交流建设分公司,北京,100140 |
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| 基金项目： | 国家电网和华北电网重点基金项目~~ |
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| 摘 要： | 2007-02-27/03-04期间,华北地区出现的罕见大风暴雪天气造成京津唐电网多条500kV紧凑型输电线路跳闸、故障,为了提高500kV紧凑型线路输变电设备抵御自然灾害的能力,有必要对500kV紧凑型输电线路在恶劣天气时各种外力作用下的动态特性进行研究,主要对500kV紧凑型输电线路在大风作用下的动态特性进行了深入研究。采用计算机仿真的方法研究了500kV紧凑型输电线路在特大风载荷作用下的动态特性,根据仿真结果,对仿真过程中出现的比较危险的工况采取最经济合理的应对措施:对于500kV倒V型导线排列的凑型输电线路,在32m/s的风速作用下,导线档距>800m时,建议在水平相档距中间加装一支芯棒直径为34mm的相间间隔棒,以提高线路运行的安全性。导线档距为300～600m的较小档距时,最小相间距离发生在上下相间,而不是通常认为的水平相间。
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| 关 键 词： | 架空输电线路 传输线动态特性 数值仿真 风载荷 紧凑型 相间间隔棒 |
Fault Analysis and Modified Measures of 500 kV Compact Transmission Line |
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| WANG Li-ming
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SUN Bao-qiang
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HOU Lei
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FU Guan-jun
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MENG Xiao-bo
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GUAN Zhi-cheng.Fault Analysis and Modified Measures of 500 kV Compact Transmission Line[J].High Voltage Engineering,2009,35(9):2108-2113. |
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| Authors: | WANG Li-ming SUN Bao-qiang HOU Lei FU Guan-jun MENG Xiao-bo GUAN Zhi-cheng |
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| Affiliation: | 1. Graduate School at Shenzhen;Tsinghua University;Shenzhen 518055;China;2. AC Project Construction Branch;State Grid Cooperation of China;Beijing 100140;China |
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| Abstract: | During the period of February 27 to March 4,2007,a rare snow storm hit North China and caused many 500 kV compact transmission lines to trip and fault. In order to improve the power transmission line's ability to withstand natural disasters,it is necessary to study the dynamic characteristics of 500 kV compact transmission line under a variety of external force in adverse environments. We studied the dynamic characteristics of 500 kV compact transmission line under heavy wind load. A numerical simulation me... |
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| Keywords: | overhead transmission line the dynamic characteristics of transmission line numerical simulation wind load compact type phase-to-phase spacer |
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