| 引用本文: | 邓 军,肖 遥,楚金伟,郝艳捧,李立浧,赵宇明,张建功.±800 kV云广特高压直流线路合成电场仿真计算与测试分析[J].电力自动化设备,2015,35(2): |
| DENG Jun,XIAO Yao,CHU Jinwei,HAO Yanpeng,LI Licheng,ZHAO Yuming,ZHANG Jiangong.Simulative calculation and measurement analysis of total electric field for ± 800 kV Yunnan-Guangzhou UHVDC transmission lines[J].Electric Power Automation Equipment,2015,35(2): |
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| 摘要: |
| 为研究实际运行特高压直流输电线路复杂环境的合成电场特性及环境影响，开展 ± 800 kV云广直流线路合成电场测量与分析。建立了特高压直流输电线路合成电场计算模型及算法流程，阐述了特高压直流输电线路合成电场的测量仪器、环境、位置、数据记录和处理方法。不同运行方式下的测试结果表明：正极半压和负极全压下测量值与理论值的误差小于负极全压运行下的误差，但大于双极全压运行下测量值与理论值的误差；因测试点的海拔高度、导线对地高度、温／湿度、风速、风向等因素影响，负极半压、正极半压和负极全压、负极全压运行的合成电场值上下浮动于不同月份的双极全压测量值；不同测试点的合成电场的80 % 值和95 % 值对应的测量位置基本相同，同时所有测量结果满足合成电场环境限值且有足够的裕度。云广直流工程的电磁环境设计合理性得到了验证。 |
| 关键词: 特高压输电 直流输电 输电线路 电场 合成电场 电磁环境 高海拔地区 电晕效应 实测 |
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| 基金项目:国家高技术研究发展计划（863计划）资助项目（2012AA050209） |
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| Simulative calculation and measurement analysis of total electric field for ± 800 kV Yunnan-Guangzhou UHVDC transmission lines |
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DENG Jun1,2, XIAO Yao2, CHU Jinwei2, HAO Yanpeng1, LI Licheng1, ZHAO Yuming3, ZHANG Jiangong4
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1.School of Electric Power，South China University of Technology，Guangzhou 510640，China;2.Maintenance & Test Center，EHV，China Southern Power Grid，Guangzhou 510663，China;3.Electric Power Research Institute，CSG，Guangzhou 510080，China;4.State Grid Power Research Institute，Wuhan 430074，China
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| Abstract: |
| The total electric field of ± 800 kV Yunnan-Guangzhou DC lines is measured and analyzed for studying the total electric field characteristics and environmental effect of UHVDC lines. The calculation model of UHVDC total electric field and its algorithm are proposed. The measuring instruments，environment and location，as well as the data record and its processing method，are introduced. The data measured in different operating modes show that，the difference between the theoretical value and the value measured in the mode of half positive pole voltage & full negative pole voltage is less than that in the mode of full negative pole voltage but greater than that in the mode of full positive pole voltage & full negative pole； with the influences of altitude，line-ground height，temperature，humidity，wind speed，wind direction，etc.，the total electric field measured in the mode of half negative pole voltage，in the mode of half positive pole voltage & full negative pole voltage or in the mode full negative pole voltage is different from the value measured in the mode of full positive pole voltage & full negative pole for different months；the measuring location of 80 % value and that of 95 % value are nearly same for all test points，and all the measured data meet，with sufficient margin，the environmental limits relating to the total electric field. The rationality of electromagnetic environment design for Yunnan-Guangzhou DC project is verified. |
| Key words: UHV power transmission DC power transmission transmission lines electric fields total electric field electromagnetic environment high altitude area corona effect measurement |
