| 气体绝缘开关直线和T型结构中电磁波传播特性的仿真 |
| |
| 引用本文： | 杨景刚,黎大健,李军浩,司文荣,李彦明.气体绝缘开关直线和T型结构中电磁波传播特性的仿真[J].西安交通大学学报,2008,42(12). |
| |
| 作者姓名： | 杨景刚 黎大健 李军浩 司文荣 李彦明 |
| |
| 作者单位： | 西安交通大学电气工程学院,710049,西安 |
| |
| 摘 要： | 采用有限时域差分法(FDTD)对由局部放电产生的电磁波在GIS典型结构(直线和T型结构)中的传播特性进行了仿真研免通过设置不同的电磁波激发方向、对比不同测量角度的信号时域和频域特征、以及比较两种结构的仿真结果,获得了TEM模波和TE模波在直线和T型结构中的传播特性,以及T型结构产生的反射波特征等.仿真结果表明:电磁波信号在GIS典型腔体中传播时,信号峰峰值和能量受模波速度色散效应的影响,在离激励源较近时衰减较大,远离激励源时衰减较小;T型结构会发生模式转变效应,将在反射和前行电磁波中产生新的模波分量;TEM模波无截止频率,其传播不受结构的影响,在GIS同轴腔体中传播衰减较小.
|
| 关 键 词： | T型结构 仿真 气体绝缘开关 有限时域差分法 |
Simulation for Electromagnetic Wave Transmission Characteristics in Straight and T-Shaped Tanks of Gas Insulation Switchgear Structures |
| |
| YANG Jinggang,LI Dajian,LI Junhao,SI Wenrong,LI Yanming.Simulation for Electromagnetic Wave Transmission Characteristics in Straight and T-Shaped Tanks of Gas Insulation Switchgear Structures[J].Journal of Xi'an Jiaotong University,2008,42(12). |
| |
| Authors: | YANG Jinggang LI Dajian LI Junhao SI Wenrong LI Yanming |
| |
| Abstract: | Propagation characteristic of electromagnetic which is excited by partial discharge in gas insulation switchgear(GIS) is simulated based on the method of finite difference time domain(FDTD).The transmission characteristics of TEM and TE,and reflected waves generated by T-shaped tanks are analyzed in the straight and T-shaped tanks of GIS structure,via setting the different directions of electromagnetic,comparing the time and frequency domain results of electromagnetic wave in different structures and measur... |
| |
| Keywords: | T-shaped tanks simulation gas insulation switchgear finite difference time domain |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
