双馈水轮发电机风摩损耗数值研究  

Numerical research of wind friction loss for doublefed hydro-turbine generator

作　　者：丁树业[1] 郭长光 郭保成[1] 邓艳秋[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨150080

出　　处：《华中科技大学学报（自然科学版）》2014年第2期26-30,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51277045);黑龙江省自然科学基金资助项目(QC2012C109);黑龙江省教育厅基金资助项目(12531112)

摘　　要：根据双馈水轮发电机结构特点和通风特性,以计算流体力学为基础,建立通风道流体场模型,应用有限体积法对电机内流体流动特性进行数值求解,并对电机内风摩损耗进行计算,进而实现了电机内机械损耗的分离计算.通过与实验数据的对比分析,验证了其计算结果的准确性.对电机内风摩损耗的敏感性因素进行了分析.采用有限体积法进行求解,得出电机风摩损耗,结合轴承摩擦损耗经验公式计算得出电机的机械损耗,以此机械损耗与实验数据比较验证了结果的正确性.进而分析了电机转速、通风道内壁面表面粗糙度以及通风槽钢长度和尺寸等因素对电机风摩损耗的影响.On the base of the computational fluid dynamics ,the fluid model of ventilation duct was set up according to the structural and ventilation characteristic of double-fed hydro-turbine generator . The tluid tlow characteristics of motor were numer ically solved with tinite volume method and the wind triction loss of motor was calculated .The separating calculation of mechanical loss was realized . The accuracy of the calculation was validated through comparative analysis of the experimental data and windtriction loss sensitivity tactors was analyzed .With the finite element method adopt ,the mo-tor wind friction loss was analyzed .The mechanical loss ,calculated by the wind friction loss and em-pirical formula of bearing friction loss ,is agreement with the experimental data .The impact of the motor speed ,the inside surface roughness and the size of channel beam ,and other factors on the mo-tor wind friction loss were further taken into account .

关 键 词：水轮发电机 双馈 风摩损耗 流体场 有限体积法 

分 类 号：TM312[电气工程—电机]