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| 特高压直流输电线下合成电场分布的影响因素 | |
| 引用本文： | 卢铁兵,冯晗,王琦,崔翔.特高压直流输电线下合成电场分布的影响因素[J].高电压技术,2009,35(9):2066-2070. |
| 作者姓名： | 卢铁兵 冯晗 王琦 崔翔 |
| 作者单位： | 1. 华北电力大学电气与电子工程学院,保定,071003 2. 河南电力公司郑州供电公司,郑州,450006 3. 南方电网技术研究中心,广州,510623 |
| 基金项目： | 国家“十一五”科技支撑计划重大项目(2006BAA02A20)~~ |
| 摘 要： | 为在设计特高压直流输电线路时考虑地面合成电场和离子流密度分布两个相互关联的电磁环境指标,采用上流有限元法对双极直流线路下合成场强和离子流密度分布进行数值计算。在验证其有效性之后,以云广±800kV特高压直流输电线路为算例,分析了一些线路参数对合成场强和离子流密度分布的影响规律。结果表明,提高导线高度能明显减小地面电场,极间距的小范围变化对地面电场影响不大,控制地面的电场效应须注意导线表面的状况,正负极性也会引起地面电场效应的不同变化。最后根据我国电力行业标准中对合成场强和离子流密度分布的限值给出了线路的走廊宽度建议。 |
| 关 键 词： | 特高压 直流输电线路 有限元法 合成电场 电晕 电磁环境 |
Analysis of Influence Factors of the Total Electric Field Distribution Beneath UHVDC Power Lines |
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| LU Tie-bing , FENG Han , WANG Qi , CUI Xiang.Analysis of Influence Factors of the Total Electric Field Distribution Beneath UHVDC Power Lines[J].High Voltage Engineering,2009,35(9):2066-2070. | |
| Authors: | LU Tie-bing FENG Han WANG Qi CUI Xiang |
| Affiliation: | 1. School of Electrical and Electronic Engineering;North China Electric Power University;Baoding 071003;China;2. Zhengzhou Power Supply Company;Henan Electric Power Company;Zhengzhou 450006;3. Technology Research Center;China Southern Power Grid;Guangzhou 510623;China |
| Abstract: | Total electric field should be considered during the design of UHVDC transmission lines as one of the principal environment indices. The upstream finite element method (UFEM) was applied to analyze the total ground electric field and ionic current density distributions under 800 kV UHVDC power lines. The effectiveness of the method was validated,and the Yunguang 800 kV UHVDC power lines were calculated to analyze the influences of the height,line spacing,conductor surface condition,and the polarity. The ana... |
| Keywords: | UHV DC transmission lines finite element method total electric field corona electromagnetic environment |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
