外场激励下多导体传输线响应的节点导纳分析法  

Nodal Admittance Method for Response of Multiconductor Transmission Line Excited by Electromagnetic Field

作　　者：卢斌先[1] 王泽忠[1] 

机构地区：[1]华北电力大学高电压与电磁兼容北京市重点实验室,北京102206

出　　处：《电工技术学报》2007年第10期145-149,共5页Transactions of China Electrotechnical Society

基　　金：国家杰出青年科学基金(50325723);长江学者和创新团队发展计划(IRT0515)资助项目

摘　　要：基于空间电磁场激励下的Taylor和Agrawal传输线模型,分别推导了Taylor和Agrawal模型的均匀平面波激励下耦合多导体传输线终端响应的方程。将沿传输线分布的激励源等效为终端等效电流源,根据散射电压、入射电压和总电压的定义以及终端网络的边界条件,分别以传输线终端节点的总电压和散射电压为未知量,推导了均匀平面波激励下端接耦合多导体传输线的节点导纳方程。该方程为分析均匀平面波激励下含有复杂终端网络的传输线以及传输线网络的节点电压电流响应提供了简便途径,概念和计算过程简单,易于计算复杂传输线网络的节点电压。考虑大地的影响,本文全面阐述了传输线耦合电压响应分析过程,并验证了该方法的正确性。对含屏蔽地线的五导体传输线响应进行了数字仿真,并分析了地线对其他三导体响应的影响。Based on Taylor and Agrawal models respectively, this paper presents analytical solution of response of multiconductor transmission line excited by uniformed plane waves. Making distributed sources along line as equivalent source at terminals, based on definition of scattering, incident, and total voltages, and terminal boundary conditions, this paper deduces respectively nodal admittance equations of Taylor and Agrawal models with terminal total voltages and scattering voltages as unknown variables when transmission line is excited by uniformed plane waves. It is convenient to use these equations to analyze the responses of transmission line composed of complex terminal networks or complex transmission lines network. The concept and calculation process of this method is simple, and it is convenient to calculate the voltages at terminals of multiconductor transmission line. Considering the effect of lossy ground this paper analyzes the voltage responses at terminals of transmission line with shielding lines.

关 键 词：Agrawal模型 Taylor模型 电磁场 节点导纳方程 多导体传输线 

分 类 号：TM861[电气工程—高电压与绝缘技术]