Finite-Element Time-Domain Method for Multiconductor Transmission Lines Based on the Second-Order Wave Equation

被引：10

作者：

Qi, Lei ^{[1
]}

Bai, Shuhua ^{[1
]}

Shuai, Qi ^{[1
]}

Liu, Xin ^{[1
]}

Cui, Xiang ^{[2
]}

机构：

[1] North China Elect Power Univ, Lab High Voltage & Electromagnet Compatibil, Beijing 102206, Peoples R China

[2] North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China

来源：

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2014年 / 56卷 / 05期

关键词：

Complex lumped networks; finite-element time-domain (FETD); multiconductor transmission lines (MTLs); node admittance theory; single iteration variable; transient response; MAXWELLS EQUATIONS; NUMERICAL-SOLUTION; INTERPOLATION; DIFFERENCE; TRANSIENTS; SIGNAL;

D O I：

10.1109/TEMC.2014.2314212

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Based on the second-order wave equation of voltage, discrete equations for multiconductor transmission lines (MTLs) are derived by using finite-element time-domain (FETD) method and Newmark-Beta formulation. And then, the time-domain method to process lumped elements is also given based on the node admittance method of circuit analysis. Combining all the discrete equations and lumped elements, the global FETD equation is obtained based on the single iteration variable voltage. Finally, by means of the coupled equations between current and voltage, the iteration formulas of current along MTLs are derived. Compared with EMTP program by numerical examples, the proposed method in this paper is proved to be correct and effective. Furthermore, the simulation result demonstrates that the proposed method is better than the existing FETD methods in computation efficiency and convenience for the treatment of complex lumped networks.

引用

页码：1218 / 1228

页数：11