基于MATLAB的变压器空载合闸瞬变过程仿真研究  

MATLAB-based simulation of instantaneous change process when transformer no-load switching

作　　者：黄绍平[1] 李永坚[1] 

机构地区：[1]湖南工程学院电气与信息工程系,湖南湘潭411101

出　　处：《继电器》2004年第8期19-21,共3页Relay

摘　　要：变压器空载合闸投入运行时会出现一个较为复杂的电磁瞬变过程 ,对其进行工程计算很麻烦。利用MATLAB中的电气系统模块库 (PSB) ,为研究分析变压器空载合闸瞬变过程建立了系统仿真模型 ,它可以分析变压器在空载合闸瞬变过程中励磁涌流、磁通以及谐波的变化情况。本文采用这一模型进行了仿真 ,给出了仿真结果 。A complicated electromagnetic instantaneous change process will appear when transformer no load switching, which is complicated to calculate electromagnetic quantities. Using power system blockset(PSB)of MATLAB,a simulation model of analysing instantaneous change process is built when transformer no load switching. It can analyse the varieties of inrush current,flux and harmonic in the instantaneous change progress.Using this model, a simulation is accomplished,and the result is given. This method is a facile and effective means for analysing and calculating electromagnetic quantities during instantaneous change process when transformer no load switching.

关 键 词：变压器 空载合闸 瞬变过程 仿真 MATLAB 电气系统模块库 电力变压器 电力系统 

分 类 号：TM743[电气工程—电力系统及自动化]