| 特高压角钢铁塔无源干扰计算的三维面模型 |
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| 引用本文： | 唐波,文远芳,赵志斌,张小武.特高压角钢铁塔无源干扰计算的三维面模型[J].中国电机工程学报,2011(4). |
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| 作者姓名： | 唐波 文远芳 赵志斌 张小武 |
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| 作者单位： | 华中科技大学电气与电子工程学院;华北电力大学电气与电子工程学院;国网电力科学研究院; |
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| 基金项目： | “十一五”国家科技支撑计划重大项目(2006BAA02A09); 国家电网公司科学技术项目(SG0925)~~ |
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| 摘 要： | 为更准确地计算特高压输电线路对各类无线台站的无源干扰防护距离,提出建立单基角钢铁塔无源干扰三维面模型的方法。依据输电线路无源干扰的线、面电场积分方程,分析已有铁塔线模型的等效依据和高频段误差增大的原因。为保证铁塔感应电流的连续性,有效体现角钢的局部特征,提出基于三角面元的铁塔有(无)辅材的三维面模型。选择RWG(rao-wilton-gisson)基函数和伽略金检验,采用矩量法计算铁塔面模型无源干扰水平,并与线模型计算结果进行比较。结果表明,随着计算频率的增高,铁塔线模型与面模型的计算结果变化趋势相同,数值差异逐渐增大。如以0.1 dB为偏差允许值,建议在16.7 MHz以上频率采用更能模拟实际情况的特高压铁塔面模型。
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| 关 键 词： | 特高压角钢铁塔 无源干扰 矩量法 铁塔辅材 线模型 面模型 |
Three-dimensional Surface Computation Model of the Reradiation Interference From UHV Angle-steel Tower |
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| TANG Bo,WEN Yuanfang,ZHAO Zhibin,ZHANG Xiaowu.Three-dimensional Surface Computation Model of the Reradiation Interference From UHV Angle-steel Tower[J].Proceedings of the CSEE,2011(4). |
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| Authors: | TANG Bo WEN Yuanfang ZHAO Zhibin ZHANG Xiaowu |
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| Affiliation: | TANG Bo1,WEN Yuanfang1,ZHAO Zhibin2,ZHANG Xiaowu3(1.College of Electric and Electronic,Huazhong University of Science and Technology,Wuhan 430074,Hubei Province,China,2.College of Electric and Electronic,North China Electric Power University,Baoding 071003,Hebei Province,3.State Grid Electric Power Research Institute,China) |
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| Abstract: | A three-dimensional surface simulation computation model of reradiation interference on radio station from ultra high voltage(UHV) angle-steel tower was designed intending to offer higher accuracy in the assessment of passive interference protecting distance between radio station and UHV transmission lines.Based on the wire and surface electric field integral equations of reradiation interference,the equivalent principle and the reasons for the increased error at high frequency were analyzed.In order to ass... |
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| Keywords: | ultra high voltage(UHV) angle-steel tower reradiation interference method of moments auxiliary angle-steel wire model surface model |
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