发电机仿真分析及优化设计  

Finite Element Analysis and Optimization of Generator

作　　者：张青雷[1,2] 高孟雪 

机构地区：[1]上海理工大学机械工程学院,上海200093 [2]上海电气集团股份有限公司中央研究院,上海200073

出　　处：《电子科技》2016年第1期56-59,共4页Electronic Science and Technology

基　　金：上海市2013年度服务业发展引导基金资助项目(cn2013000016)

摘　　要：为建立更加精确的汽轮发电机定子端部的有限元模型,以汽轮发电机定子绕组的汽端为研究对象,用有限元分析法进行模态分析。结合模态试验测得的数据,分析误差来源,选择有限元模型修正参数。基于Ansys Workbench仿真软件的优化模块对修正参数进行灵敏度分析,保留灵敏度高的参数,并对保留的参数进行优化分析。研究结果表明,经修正后的有限元模型能准确地反映该结构真实的动力特性,且仿真模态与试验模态之间的误差减小在5%以内。The steam generator side of the stator end winding of tur-generator is studied with a modal analysis by finite element method to establish a more accurate finite element model of stator end winding of tur-generator. The modal experiment data are analyzed to show the error sources,based on which the modification parameters of the finite element model are selected. After the sensitivity analysis of modal parameters based on Ansys Workbench,the high sensitivity parameters retained are updated. The results demonstrate that the model updated by simulation calculation can reflect the real dynamic characteristics of the structure with the difference between simulation and experimental less than 5%.

关 键 词：汽轮发电机 模态分析 灵敏度分析 模型修正 优化设计 

分 类 号：TM311[电气工程—电机] TH164[机械工程—机械制造及自动化]