提高三相同步发电机短路比的两种方法  

Two Methods for Improving Short-circuit Ratio of the Three-phase Synchronous Generator

作　　者：邱琴忠 

机构地区：[1]甘肃建筑职业技术学院建筑安装系,甘肃兰州730050

出　　处：《兰州工业高等专科学校学报》2004年第3期42-45,共4页Journal of Lanzhou Higher Polytechnical College

摘　　要：分析了短路比与饱和系数、气隙磁势和电枢反应磁势的关系,以及电枢每相串联匝数和气隙长度对短路比的影响;介绍了设计三相同步发电机时提高短路比的两种方法.This paper analyzes the relationship between short-circuit ratio and saturation coefficient, air-gap magnetomotive force (MMF) and armature reaction magnetomotive force as well as the influence of turns-in-series per-phase of an armature and the influence of air-gap length to the short-circuit ratio. In addition, it introduces two methods for improving the short-circuit ratio in designing a three- phase synchronous generator.

关 键 词：三相同步发电机 短路比 饱和系数 气隙长度 串联匝数 电枢反应磁势 

分 类 号：TM623.3[电气工程—电力系统及自动化]