摘要
本文采用Galerkin有限元法推导了三维,准三维涡流磁场的弱解形式.并利用所得结果,计算了一台三十万千瓦汽轮发电机端部磁场.
In this paper a weak solution formula of 3D eddy current field equation is derived by using Galerkin finite element method, and it is converted into a quasi-3D eddy current magnetic field formula, which can be used for the analysis of magnetic field in the end region of a large turbogenerator. In the paper the eddy current magnetic field in the end region of a 300MW turbogenerator is calculated as well.
关键词
汽轮发电机
有限元法
涡流场
计算
finite element methods
eddy current
numerical calculation
turbogenerator
end magnetic fieled
