大容量汽轮发电机短路电流值与典型计算曲线值的对比分析  

Comparative analysis of short-circuit currents of large capacity turbo-generators and typical computational short-circuit current curves

作　　者：曹炜[1] 宋磊[1] 刘尹[1] 

机构地区：[1]上海电力学院,上海200090

出　　处：《华东电力》2007年第1期33-36,共4页East China Electric Power

基　　金：上海市教委发展基金一般项目(04LB05)

摘　　要：首先简要回顾和校核了短路电流典型计算曲线的制作方法和原理,然后依此对3台大容量汽轮发电机进行了任意时刻短路电流周期分量的计算,并将计算结果与典型短路电流计算曲线进行了对比分析,得出了汽轮发电机容量越大,典型短路电流计算曲线的有效性越差的结论,最后对计算曲线法的改进应用提出了自己的看法。The method and principle of drawing the typical computational short-circuit current curve are briefly reviewed and checked. The periodic component of the short-circuit current of three large capacity turbo-generators at random time were calculated, and the results were compared with the typical computational short-circuit current curve. It is concluded that the larger capacity the turbo-generator has, the less valid the curve is. Suggestions on the improvement of the computational curve are also proposed.

关 键 词：短路电流 计算曲线 解析法 MATHCAD 

分 类 号：TM713[电气工程—电力系统及自动化]