大型汽轮发电机定子绕组端部电磁力解析计算  

Study on electromagnetic forces of end windings in large turbo-generators

作　　者：单继聪[1] 梁旭彪 杨仕友[1] 黄磊 咸哲龙 倪光正[1] 

机构地区：[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

出　　处：《机电工程》2008年第10期98-100,共3页Journal of Mechanical & Electrical Engineering

摘　　要：为了研究汽轮发电机运行时定子绕组端部承受的电磁力,根据电磁场的基本理论,推导了汽轮发电机定子端部区域电磁场以及绕组所受电磁力的计算公式,利用镜像法建立了定子绕组端部电磁场的数学模型。通过解析计算,分别得到了定子绕组端部在稳态运行和短路运行条件下所受电磁力的分布情况,并对计算结果进行了详细分析。分析结果显示,该解析计算具有一定的实际应用价值。Aiming at studying electromagnetic forces acting on the end windings when the turbo-generator was running, the magnetic field distribution in the end region of the turbo-generator and electromagnetic forces acting on the windings were formulated analytically based on the fundamental equations of electromagnetic field. The mathematical model was made based on the method of image. Using these models and methods, the distributions of electromagnetic forces acting on the end windings both in steadystate and short-circuited operations were investigated and analyzed. The conclusions show that the study have some practical guidance value for engineering application.

关 键 词：大型汽轮发电机 定子绕组端部 电磁力 电磁场 

分 类 号：TM311[电气工程—电机]