大型汽轮发电机端部绕组电动力三维有限元分析

作者：张甲1，梁旭彪2，杨仕友1，黄磊2，咸哲龙2，李治2，倪光正1 日期：2008-11-03/span> 浏览：3724 查看PDF文档

大型汽轮发电机端部绕组电动力三维有限元分析

张甲1，梁旭彪2，杨仕友1，黄磊2，咸哲龙2，李治2，倪光正1
（1.浙江大学 电气工程学院，浙江 杭州 310027;2.上海汽轮发电机有限公司，上海 200240）

摘要：为研究不同工况(故障)下大型汽轮发电机端部绕组电动力，首先建立了其三维有限元数值分析的数学模型；然后采用ANSYS商用软件，对不同运行工况下某600 MW大型汽轮发电机端部绕组电动力进行了计算和分析；最后，得出了具有一定工程指导价值的结论。研究结果表明，该研究为进一步进行电机优化设计奠定了基础。
关键词：汽轮发电机；端部绕组；电磁力；有限元计算
中图分类号：TM311文献标识码：A文章编号：1001-4551(2008)10-0001-05

Three-dimensional finite element analysis of electromagnetic forces
acting on the end winding of large turbo-generator
ZHANG Jia1, LIANG Xu-biao2, YANG Shi-you1, HUANG Lei2, XIAN Zhe-long2, LI Zhi2, NI Guang-zheng1
(1.College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China;
2.Shanghai Turbo-generator Co. Limited, Shanghai 200240, China)
Abstract: For the numerical study of the electromagnetic forces acting on the end winding of large turbogenerators under different operating conditions, the mathematical model using three dimensional finite element was firstly investigated and implemented by using ANSYS commercial software. The details about the (transient) electromagnetic forces acting on the end windings of a 600 WM turbogenerator were reported and some conclusions were given, which may be valuable for engineering application. The research results show that the analysis lays the foundation for the futher more optimization of motor.
Key words: turbo-generator; end winding; electromagnetic force; finite element analysis
参考文献(References):
［1］胡宇达,邱家俊.大型汽轮发电机定子端部绕组整体结构的电磁振动［J］.中国电机工程学报,2003,23(7):93-98.
［2］NOAH S T, SUNDARARAJAN P. Significance of considering nonlinear efects in predicting the dynamic behaviour of rotating machinery［J］. Journal of Vibration and Contral,1995,1(4):431-458.
［3］RICHARD S, DUCREUX J P, FOGGIA A. A Three Dimensional Finite Element Analysis of the Magnetic Field in the end Region of a Synchronous Generator［C］. IEEE Eletric Machines and Drives Conference Record,1997:WC2/4.1-WC2/4.3.
［4］李宗平，唐任远.汽轮发电机定子绕组端部绕组电动力研究［J］.沈阳工业大学学报，1991,13(2):13-25.
［5］SENSKE K. Vibration form of stator end winding when electric fault occurs in turbogenerator［J］. Foreign Large Generator,1998(2):25-33.
［6］汤蕴G.电机内的电磁场:第2版［M］. 北京：科学出版社，1998.
［7］高景德,张麟征.电机过渡过程的基本理论及分析方法［M］.北京：科学出版社，1982.