摘要
本文用棱边有限元一边界元耦合法分析计算了大型汽轮发电机端部三维瞬态涡流电磁场。得到了在三相空载突然短路情况下端部结构件(银屏蔽、转子护环等)中的瞬态涡流分布。计算结果能为端部结构的设计提供一定的依据。
A novel edge FEM-BEM method is used for calculation of 3D transient eddy currech in the end region of large turbogenerators.The calculation results of eddy current distributions in end structures,such as copper shield plate and retaining ring,under a no-load 3 phase sudden short circuit situation are presented .Thecomputation results can provide a reference to the design of the end structures.
出处
《大电机技术》
北大核心
1997年第5期1-4,共4页
Large Electric Machine and Hydraulic Turbine