| 基于模态分析的发电机定子端部线棒特性研究 |
| |
| 引用本文： | 吴易洋,李太斌,马晨原,余阳,孙琪,牛利涛.基于模态分析的发电机定子端部线棒特性研究[J].水电能源科学,2021,39(4):146-149. |
| |
| 作者姓名： | 吴易洋 李太斌 马晨原 余阳 孙琪 牛利涛 |
| |
| 作者单位： | 西安热工研究院有限公司,陕西西安710054;华能四川水电有限公司,四川成都610041;西安热工研究院有限公司,陕西西安710054;西安理工大学水利水电学院,陕西西安710048;中国电子科技集团公司第五十四研究所,河北石家庄050081 |
| |
| 基金项目： | 陕西省自然科学基础研究计划(2018JM5087);中国华能集团总部科技项目(HNKJ18-H29)。 |
| |
| 摘 要： | 针对发电机端部振动问题,研究了机组端部的模态特性,分别探讨了3种弹性模量的变化对机组振动特性的影响程度。先对发电机端部线棒进行参数化建模,然后利用FEM模态分析方法进行计算,对比分析计算结果,得到20阶临界频率及振型,划归振型的危险变形区域。通过对比不同工况下振型、临界频率,得出发电机定子端部线棒的典型振型,分析了对应的临界频率与弹性模量同向变化的规律,计算结果与现场检测数据相符,验证了计算方法的有效性。
|
| 关 键 词： | 发电机 端部线棒 弹性模量 FEM 模态分析 |
Research on Characteristics of Generator Stator Winding Based on Modal Analysis |
| |
| WU Yi-yangi,LI Tai-bin,MA Chen-yuan,YU Yang,SUN Qi,NIU li-tao.Research on Characteristics of Generator Stator Winding Based on Modal Analysis[J].International Journal Hydroelectric Energy,2021,39(4):146-149. |
| |
| Authors: | WU Yi-yangi LI Tai-bin MA Chen-yuan YU Yang SUN Qi NIU li-tao |
| |
| Affiliation: | (Xi'an Thermal Power Research Institute CO.,Ltd.,Xi'an 710054,China;Huaneng Sichuan Hydropower Co.,Ltd.,Chendu 610041,China;Institute of Water Tesources and Hydro-electric Engineering,Xi'an University of Technology,Xi'an 710048,China;The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050081,China) |
| |
| Abstract: | The modal vibration characteristics of the end part of the generator stator winding are studied,and the effects of three kinds of elastic modulus changes on the vibration characteristics are discussed.Firstly,the end part of the stator winding model is parametrically established.Secondly,the FEM model analysis method is used for calculation.Finally,through analysis and comparison of calculation results,20 th order critical frequency and vibration mode are obtained,which are classified into the dangerous deformation region of the vibration mode.By comparing the vibration mode and critical frequency under different working conditions,the typical vibration mode of the end part of the generator stator winding is obtained.The corresponding law of the co-directional change of the critical frequency and elastic modulus is analyzed,and the calculation results are confirmed with the test data,which verifies the effectiveness of the proposed method. |
| |
| Keywords: | generator stator winding modulus of elasticity FEM modal analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
