【摘要】 本文提出了在计及端部行波场各次空间谐波的情况下,应用一维解析二维有限元数值解的方法来分析汽轮发电机端部三维磁场。在考滤到端区主要金属构件中涡流反应的影响后,仍可采用标量位来计算稳态及瞬态工况下的端区磁场。所编软件可在微机上运行。本文提出的方法适用于分析计算汽轮发电机定子端部绕组的电磁力及端部漏抗。更多还原

【Abstract】 This paper presents a method to compute 3D magnetic fields in the end region of turbine generators. After taking account of higher space harmonic fields, an axisymmetric axiperiodic finite element method is used. After considering the reaction of eddy currents in metallic parts, scalar potentials can still be used for field calculations both in steady state and transient state operations. A lot of computer memory and time is thus saved and the program can be run on micro computers. The method given here is suitable for calculating the electromagnetic forces on end windings or the end winding leakage reactance.更多还原