三相输电线旋转电场的动态仿真分析  

The Dynamic Simulation and Analysis of Rotary Electric Field Nearby the Three-phase Transmission Line

作　　者：董霞[1] 梁振光[1] 孟昭敦[1] 

机构地区：[1]山东大学(南校区)电气工程学院,山东济南250061

出　　处：《电气电子教学学报》2005年第3期66-67,99,共3页Journal of Electrical and Electronic Education

摘　　要：利用MATLAB软件对三角排列的三相输电线产生的合成电场进行了动态仿真分析,得出了合成电场的电场矢量的大小和方向不仅与时间有关,还与空间位置有关。通过仿真,可清楚的观察到电场矢量的动态旋转过程。并且根据不同空间位置上的场点的电场矢量的旋转轨迹图,可以形象直观地了解旋转矢量的极化形式、旋转方向、初相角等特点,从中总结出具有一般性的规律。由于本文只研究输电线附近周围的电场分布,所以没有考虑地面的影响。工程中应考虑大地的影响,可用镜像法计算工频电场并对其进行仿真。With MATLAB this paper simulates the resultant electric field of three-phase transmission line which has triangle arrangement. It derives that the size and orientation of resultant electric vector related to not only time, but also spatial site. The dynamic rotary process of electric vector can be observed distinctly via the simulation. According to the track figure of rotary electric vector at different site, it is intuitional to see the polarization, rotary orientation, initial angle of rotary vector, and generic rules are summarized from it. The paper has not taken the ground into account because it only studies the electric field distributing nearby transmission line. The ground should be considered in engineering, and the electric field of power frequency can be calculated with mirror method, then simulated with MATLAB.

关 键 词：旋转电场 三相输电线 仿真分析 

分 类 号：TM154.1[电气工程—电工理论与新技术] TM74