柬埔寨桑河二级电站灯泡贯流式发电机设计概述  

Overview of Bulb Turbine Generator Design in Sesan 2 Hydroelectric Power Plants

作　　者：杜芳勉 沈少雄 王建康 DU Fangmian;SHEN Shaoxiong;WANG Jiankang(Dongfang Electric Machinery Co.,Ltd.,618000,Deyang,Sichuan,China)

机构地区：[1]东方电气集团东方电机有限公司,四川德阳618000

出　　处：《东方电气评论》2021年第2期81-85,共5页Dongfang Electric Review

摘　　要：本文介绍了柬埔寨桑河二级水电站大容量灯泡贯流式水轮发电机的电磁方案设计和主要结构特点。针对其河水温度高、雨季泥沙含量大、微生物丰富等特点,主要从电磁方案、结构设计、组合轴承设计和通风冷却计算4个方面进行了优化设计。机组投产后各系统运行稳定。发电机满发时定子绕组运行温度80℃左右,成功打破了锥体冷却套二次水密闭循环冷却系统在40 MW以上机组中的应用限制。The electromagnetic design and main structural characteristics of the large capacity bulb turbine generator in Sesan 2 hydroelectric power plants are introduced in this paper.Taken into account the characteristics such as high river temperature,rich sediment content and abundant microorganisms in the rainy season,the optimization design is carried out in 4 aspects:electromagnetic design,structure design,combined bearing design and ventilation cooling analysis.All system runs well after the generator is put into operation.The temperature of stator winding is around 80℃with full capacity,which breaks through the restrictions of the application of the secondary water cooling-system by using cooling jacket in bulb turbine generator with capacity over 40 MW.

关 键 词：大容量 灯泡贯流式发电机 热带季风气候 电磁方案 主要结构设计 托梁支撑轴承 通风系统 

分 类 号：TM312[电气工程—电机]