|本期目录/Table of Contents|

[1]李洪奎,李岩.不同预紧力下变压器绕组轴向振动模态分析[J].电机与控制学报,2010,(08):98-101.
 LI Hong-kui,LI Yan.Axial vibration modal analysis of transformer windingsunder different levels of pre-compression[J].,2010,(08):98-101.
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不同预紧力下变压器绕组轴向振动模态分析(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
期数:
2010年08
页码:
98-101
栏目:
出版日期:
2010-09-20

文章信息/Info

Title:
Axial vibration modal analysis of transformer windingsunder different levels of pre-compression
作者:
李洪奎; 李岩;
沈阳工业大学特种电机研究所;
Author(s):
LI Hong-kui; LI Yan
Research Institute of Special Electrical Machines; Shenyang University of Technology; Shenyang 110178; China
关键词:
电力变压器 绕组 预紧力 仿真 轴向振动 模态
Keywords:
power transformer windings pre-compression simulink axial vibration modal
分类号:
TM401.1
DOI:
-
文献标志码:
A
摘要:
根据电力变压器绕组的轴向振动的弹簧质量系统数学模型并考虑了电力变压器绕组的轴向振动的非线性特点,建立了轴向质量、弹塑性绝缘垫块和夹件组成的电力变压器绕组的模态仿真系统,给出了电力变压器绕组在不同预紧力下的轴向振动模态分析的方法,得出每一阶模态具有特定的固有频率和模态振型。指出了电力变压器绕组轴向预紧力的变化与其轴向振动固有频率变化之间的关系,并通过有限元软件ANSYS进行仿真分析和瞬态激振法进行实验验证。结果表明,仿真计算和实验数据相符合。建立了绕组的不同预紧力与固有频率变化之间的关系数据库,为电力变压器绕组结构设计时固有频率避开轴向电磁力的频率提供了理论和实验依据。
Abstract:
According to the axial vibration of mass-spring system models of power transformer windings and its nonlinear characteristics,the modal simulation system of the power transformer windings,which composes of axial mass,elastoplastic insulation spacer blocks and clamps,is developed.The modal analysis method of power transformer windings under different axial levels of pre-compression is given,and the specific natural frequency and modal order of each step mode are obtained.The relations between the changes of ...

参考文献/References:

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2010-11-17