空冷汽轮发电机定子端部电磁场和温度场耦合计算  

Calculation of the Eddy Current-thermal Coupling Fields in End-stator Region of Air-cooling Turbogenerators

作　　者：王鸿鹄[1] 梁艳萍[1] 张建涛[1,2] 刘金鹏[1] 李俊亭[2] 黄浩[2] 

机构地区：[1]哈尔滨理工大学,哈尔滨150040 [2]哈尔滨电机厂有限责任公司,哈尔滨150040

出　　处：《大电机技术》2010年第4期5-8,19,共5页Large Electric Machine and Hydraulic Turbine

基　　金：国家科技支撑计划重点项目:高压三相感应电动机节能关键技术的研究(2008BAF34B04)

摘　　要：针对空冷汽轮发电机定子端部温升难以准确计算的问题,本文提出了由端部三维电磁场得到损耗,结合用解析法得到的传热系数,来求得电机端部温度场的方法。并以一台150MW空冷汽轮发电机为例,计算得到了额定工况下定子端部和其关键点绕轴向的温度分布,对计算结果进行了简要分析。Aiming at the accurate calculation of the temperature rise, this paper proposes a method of calculating thermal field through the losses from 3D end-electromagnetic fields combine with the surface heat transfer coefficient fi-om analytic method. Taking a 150MW air-cooling turbogenerator as an example, this paper gives the axial temperature distributions of the key points in end-stator region under rated condition and analyzes the results of the calculation briefly.

关 键 词：发电机 端部 磁场 温度场 

分 类 号：TM311[电气工程—电机]