汽轮发电机端部电动力的有限元计算  

FEM Calculation of Electromagnetic Forces on the End Region Stator Conductors of Turbine Generator

作　　者：张炳军[1] 陈贤珍[1] 周克定[1] 

机构地区：[1]华中理工大学

出　　处：《大电机技术》1992年第2期23-28,共6页Large Electric Machine and Hydraulic Turbine

摘　　要：本文采用有限单元法,在考虑了汽轮发电机端部结构件涡流及媒质非线性的情况下,借助于现有的短路电流计算理论,计算了汽轮发电机定子绕组端部电动力的分布。并就端部磁屏蔽对电动力的影响作了计算分析。在此基础上编制了适用于微机系统的端部场及电动力计算专用软件。软件通用性好,使用方便,并能直观地显示计算结果。When taking account of eddy current and nonlinear medium of turbine generator end region components,and by means of existing theory for computing short circuit current,the distribution of electromagnetic forces on the end region stator conductors is calculated with FEM.The influence of end magnetic shield on the electromagnetic force is analyzed.On this basis,a special software, available to calculate end rigion fields and electromagnetic forces with the aid of microprocessor system is developed.The calculating results can be audio- visually demostrated by this common and convenient sokfware.

关 键 词：汽轮发电机 端部 电动力 有限元计算 

分 类 号：TM311[电气工程—电机]