| 用于多导体传输参数提取的等效电流密度法 |
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| 引用本文： | 门秀花,李舜酩,占日新.用于多导体传输参数提取的等效电流密度法[J].西安交通大学学报,2008,42(12). |
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| 作者姓名： | 门秀花 李舜酩 占日新 |
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| 作者单位： | 1. 南京航空航天大学能源与动力学院,210016,南京
2. 中国直升机设计研究所,333001,江西景德镇 |
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| 基金项目： | 国家自然科学基金，江苏省自然科学基金 |
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| 摘 要： | 针对电信号的有效传输受外界环境引起自身参数变化的问题,提出了一种基于有限元方法求取传输参数的等效电流密度法.通过对实验中电路参数法的研究,建立了传输电缆中的多根铜芯相互作用模型.分析了导体间涡流作用的形式,求取此作用产生的感应电压和电流密度重新分布参数,由此推导出电阻和电感传榆参数求解公式,由有限元方法实现了参数提取.仿真结果表明:这种方法能够实现多导体模型电阻和电感参数的有效提取;当信号频率升高时,交流电阻及功耗有所增加;电阻和电感参数均有相应的频变特性,即在特定频段内呈线性变化.
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| 关 键 词： | 参数提取 有限元法 等效电流密度 频变分析 多导体 |
Equivalent Current Density Method for Transmission Extraction of Multiconductor |
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| MEN Xiuhua,LI Shunming,ZHAN Rixin.Equivalent Current Density Method for Transmission Extraction of Multiconductor[J].Journal of Xi'an Jiaotong University,2008,42(12). |
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| Authors: | MEN Xiuhua LI Shunming ZHAN Rixin |
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| Institution: | MEN Xiuhua1,LI Shunming1,ZHAN Rixin2(1.College of Energy , Power Engineering,Nanjing University of Aeronautics , Astronautics,Nanjing 210016,China,2.China Helicopter Research , Development Institute,Jingdezhen,Jiangxi 333001,China) |
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| Abstract: | A novel method named equivalent current density based on finite element method was developed for parametric variation problem of signal transmission caused by the external environment.According to the investigation on circuit parameters measurement,multiconductor model of transmission cable is established,and the induction voltage and the redistribution character of current density at the conductor cross-section caused by the eddy current are also discussed.The new formulas of resistance and inductance are ... |
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| Keywords: | parameters exaction finite element method equivalent current density frequency-dependent analysis multiconductor |
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