广东电网公司电力科学研究院,广州,510080
网络首发:2013-04-10,
纸质出版:2013
移动端阅览
刘石 1, 仲继泽 2, 冯永新 1, 等. 使用磁流变阻尼器的大型汽轮发电机定子端部绕组振动控制[J]. 西安交通大学学报, 2013,47(4):39-43.
Magneto Rheological Technology of Vibration Isolation for Stator End-Winding of Large Generators[J]. 2013, 47(4): 39-43.
刘石 1, 仲继泽 2, 冯永新 1, 等. 使用磁流变阻尼器的大型汽轮发电机定子端部绕组振动控制[J]. 西安交通大学学报, 2013,47(4):39-43. DOI: 10.7652/xjtuxb201304008.
Magneto Rheological Technology of Vibration Isolation for Stator End-Winding of Large Generators[J]. 2013, 47(4): 39-43. DOI: 10.7652/xjtuxb201304008.
为控制大型二极汽轮发电机定子端部绕组产生的强迫振动
提出了基于磁流变阻尼器端部绕组的减振方法。将端部绕组及支撑结构简化为等效均质连续的三维板壳组合模型
采用Sigmoid力学模型计算阻尼器的阻尼力
建立了加装磁流变阻尼器的端部绕组的振动控制方程
通过直接积分法计算了电磁力作用下某大型汽轮发电机定子端部绕组加装磁流变阻尼器前后的振动响应。计算结果表明
磁流变阻尼器使端部绕组中径向、轴向动应力幅值分别降低了17.3%、55.9%
采用磁流变阻尼器是控制发电机端部绕组振动的一种有效方法。
To control the forced vibration of the stator end winding of large generators
a vibration isolation strategy based on magneto rheological damper is proposed. The stator end winding is simplified as a 3-D continuous homogeneous model of plates and shells
and the damping force produced by magneto rheological dampers is calculated adopting Sigmoid model. The governing equations of the stator end winding with magneto rheological dampers are discretized by finite element method. Forced responses of a stator end winding with and without magneto rheological dampers caused by electromagnetic forces are evaluated by numerical integration. The results show that dampers enable to reduce peaks of radial and axial stresses by 17.3% and 55.9% respectively.
周尚礼, 杨楚明, 陈强, 等. 大型汽轮发电机定子绕组端部振动特性测试技术的应用与分析 [J]. 广东电力, 2000, 13(5): 35-37.
ZHOU Shangli, YANG Chuming, CHEN Qiang, et al. Application and analysis of vibration test technology of large turbo-generator end-winding [J]. Guangdong Electric Power, 2000, 13(5): 35-37.
王玉田, 袁晓红. 大型汽轮发电机定子绕组端部固定方法 [J]. 大电机技术, 2011(2): 15-16.
WANG Yutian, YUAN Xiaohong. Discussion on fixing methods of large turbogenerator stator endings overhang [J]. Large Electric Machine and Hydraulic Turbine, 2011(2): 15-16.
邱家俊, 胡宇达, 卿光辉. 电磁力激发下汽轮发电机定子端部绕组的磁固耦合振动 [J]. 振动工程学报, 2002, 15(3): 267-273.
QIU Jiajun, HU Yuda, QING Guanghui. Magnetism and solid coupling vibration of turbogenerator stator end windings under electromagnetic force [J]. Journal of Vibration Engineering, 2002, 15(3): 267-273.
胡宇达, 邱家俊. 电磁力作用下发电机定子端部绕组的两自由度主共振 [J]. 固体力学学报, 2004,25(4): 439-445.
HU Yuda, QIU Jiajun. Two-degree-of-freedom principle resonance and bifurcation of generator end winding under electromagnetic force and friction force [J]. Acta Mechanica Solida Sinica, 2004,25(4): 439-445.
姚大坤, 曲大庄, 李虹, 等. 大型汽轮发电机定子端部绕组动态特性研究 [J]. 大电机技术, 2002(2): 1-4.
YAO Dakun, QU Dazhuang, LI Hong, et al. Study on end winding dynamic character of large turbogenerator [J]. Large Electric Machine and Hydraulic Turbine, 2002(2): 1-4.
成中均, 黄立民, 李晓霞. 大型汽轮发电机定子端部绕组固有频率测试与分析 [J]. 大电机技术, 1999(4): 1-8.
CHENG Zhongyun, HUANG Limin, LI Xiaoxia. Measurement and analysis of the natural frequency of the end winding on large turbogenerator stator [J]. Large Electric Machine and Hydraulic Turbine, 1999(4): 1-8.
姚大坤, 沈梁伟. 发电机定子端部绕组动态特性标准探讨 [J]. 电力设备, 2002, 3(3): 61-64.
YAO Dakun, SHEN Liangwei. Dynamic characteristic standards discussion on of stator end windings of large turbo-generator [J]. Electrical Equipment, 2002, 3(3): 61-64.
关新春, 欧进萍. 磁流变减振驱动器的响应时间试验与分析 [J]. 地震工程与工程振动, 2002, 22(6): 96-102.
GUAN Xinchun, OU Jinping. Response time experiment and analysis of magnetorheological fluid actuator [J]. Earthquake Engineering and Engineering Vibration, 2002, 22(6): 96-102.
王震鸣. 复合材料力学和复合材料结构力学 [M]. 北京: 机械工业出版社, 1991:71-81.
DRUBEL O, KULIG S, SENSKE K. End winding deformations in different turbo generators during 3-phase short circuit and full load operation [J]. Electrical Engineering, 2000(82): 145-152.
徐赵东, 沈亚鹏. 磁流变阻尼器的计算模型及仿真分析 [J]. 建筑结构, 2003, 33(1): 68-71.
XU Zhaodong, SHEN Yapeng. Calculating models and Simulink analysis about magnetorheological damper [J]. Building Structure, 2003, 33(1): 68-71.
汪建晓, 孟光. 磁流变液阻尼器用于振动控制的理论及实验研究 [J]. 振动与冲击, 2001, 20(2): 39-46.
WANG Jianxia, MENG Guan. Theoretical and experimental study on the vibration control by magneto-rheological fluid dampers [J]. Journal of Vibration and Shock, 2001, 20(2): 39-46.
0
浏览量
4
下载量
6
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621