[1]荣佳星,刘文里,牛一博,等.变压器计及局部安匝不平衡时的轴向动态响应[J].哈尔滨理工大学学报,2017,(05):52-57.[doi:10. 15938/j. jhust. 2017. 05. 010]
 ONG Jia-xing,LIU Wen-li,NIU Yi-bo,et al.Axial Dynamic Response Analysis of Transformer with Local Unbalancedampere Turns[J].哈尔滨理工大学学报,2017,(05):52-57.[doi:10. 15938/j. jhust. 2017. 05. 010]
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变压器计及局部安匝不平衡时的轴向动态响应()
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《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

卷:
期数:
2017年05期
页码:
52-57
栏目:
材料科学与工程
出版日期:
2017-12-30

文章信息/Info

Title:
Axial Dynamic Response Analysis of Transformer with Local Unbalancedampere Turns
文章编号:
1007-2683(2017)05-0052-06
作者:
荣佳星 刘文里 牛一博 李祎春 唐宇
1. 国网佳木斯供电公司,黑龙江 佳木斯 154002;2. 哈尔滨理工大学 电气与电子工程学院,黑龙江 哈尔滨 150080; 3. 吉首大学 信息科学与工程学院,湖南 吉首 416000; 4. 国网内蒙古东部电力物资公司,内蒙古 呼和浩特 010020; 5. 国网黑龙江电力有限公司检修公司,黑龙江 哈尔滨 150090
Author(s):
RONG Jia-xing 1 LIU Wen-li 2 NIU Yi-bo 3 LI Yi-chun 4 TANG Yu 5
1. State Grid Jiamusi Power Supply Company,Jiamusi 154002,China; 2. School of Electrical and Electronic Engineering,Harbin University of Science and Technology,Harbin 150080,China; 3. School of Information Science and Engineering,Jishou University,Jishou 416000,China; 4. Materials Company of State Grid East Inner Mongolia Electric Power Company Limited,Hohhot 010020,China; 5. Overhauling Company of State Grid Heilongjiang Electric Power Company Limited,Harbin 150090,China
关键词:
变压器短路工况安匝不平衡轴向电动力动态响应
Keywords:
Transformer Short circuit conditions Ampere turns unbalance The axial electric force Dynamic response
分类号:
TM411
DOI:
10. 15938/j. jhust. 2017. 05. 010
文献标志码:
A
摘要:
基于电磁学及力学理论,运用 MagNet 仿真软件,针对一台 120 MVA/220 kV 无励磁调压变压器,建立短路工况下计及安匝不平衡的三维模型,计算绕组线饼所受到的轴向电动力。可以发现绕组受局部安匝不平衡的影响,轴向电动力会在调压绕组端口处产生较大的跃变,且最大轴向电动力出现的位置不再是绕组端部,而在调压绕组端口处。再运用 ANSYS 软件建立“弹簧 - 质量- 阻尼”模型分析绕组的轴向动态响应,会发现由于最大轴向电动力出现的位置的变化,垫块的最 大承受力位置也在变化,最大承受力为 11. 2 MPa,在许用应力范围内。通过对振动位移的分析可以得到相应变化规律,再通过频谱分析确定绕组固有频率对动态响应的影响,最后对绕组的机械应力及稳定性进行分析。
Abstract:
Based on the theory of electromagnetism and the mechanics theory,it uses the finite element simulation software named MagNet to establish three-dimensional model considered unbalanced ampere turns to calculate the short-circuit electromagnetic force for a 120 MVA/220 kV without excitation transformer and then get the analysis of axial electric line cake. It can be found by local ampere-turns imbalance,the influence of axial port in regulating winding electric will produce larger distortion. And the position of maximum axial electric appeared no longer is winding ends,but in regulating winding port. Then it analyzes the axial dynamic response by establishing the "Spring-quality-damping”model . We will find that due to the change of the location of the maximum axial electric appeared,the maximum tolerance block position is changing and the maximum pressure is 11. 2 MPa. We can get the corresponding variation law by the analysis of vibration displacement. Then determined by winding inherent frequency spectrum analysis of the influence of dynamic response. Finally,the mechanical stress and stability of the winding is analyzed

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[1]张沛红,单涛,时亚娟,等.变压器端部绝缘结构参数化设计及电场分析[J].哈尔滨理工大学学报,2012,(02):76.
 ZHANG Pei-hong,SHAN Tao,SHI Ya-juan,et al.Parametric Design of Insulation Structure and Analysis of the Electric Field at Winding End of TransformerParametric Design of Insulation Structure and Analysis of the Electric Field at Winding End of Transformer[J].哈尔滨理工大学学报,2012,(05):76.
[2]刘文里[],唐宇[],李赢[],等.电力变压器高压绕组辐向稳定性评估[J].哈尔滨理工大学学报,2016,(04):90.[doi:10.15938/j.jhust.2016.04.017]
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更新日期/Last Update: 2017-11-21