Study on Mechanical Vibration Characteristics of GIS Bus Misalignment Based on FEM

BIAN Chao; ZHANG Zhengdong; ZHAO Ke; SHU Ting

doi:10.13296/j.1001-1609.hva.2020.06.011

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Study on Mechanical Vibration Characteristics of GIS Bus Misalignment Based on FEM

更新时间：2025-04-26

- Study on Mechanical Vibration Characteristics of GIS Bus Misalignment Based on FEM
- High VoltageApparatus Vol. 56, Issue 6, Pages: 72-79(2020)
- 作者机构：
  
  1. 国网江苏省电力有限公司检修分公司
  2. 国网江苏省电力有限公司电力科学研究院
  3. 西安交通大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.06.011
  CLC： TM595
- Published：2020
- 稿件说明：
移动端阅览
[1]卞超,张正东,赵科,树婷.基于有限元的GIS母线不对中机械振动特性研究[J].高压电器,2020,56(06):72-79.

BIAN Chao, ZHANG Zhengdong, ZHAO Ke, et al. Study on Mechanical Vibration Characteristics of GIS Bus Misalignment Based on FEM[J]. High voltageapparatus, 2020, 56(6): 72-79.
[1]卞超,张正东,赵科,树婷.基于有限元的GIS母线不对中机械振动特性研究[J].高压电器,2020,56(06):72-79. DOI： 10.13296/j.1001-1609.hva.2020.06.011.

BIAN Chao, ZHANG Zhengdong, ZHAO Ke, et al. Study on Mechanical Vibration Characteristics of GIS Bus Misalignment Based on FEM[J]. High voltageapparatus, 2020, 56(6): 72-79. DOI： 10.13296/j.1001-1609.hva.2020.06.011.

摘要

GIS母线较长或安装错位时

会出现母线不对中现象。这种机械故障会导致GIS导杆受力不平衡

引起机械振动。文中通过有限元仿真的方法

建立单相GIS母线模型

并施加正弦载荷模拟不对中故障激励

探究其振动特性。采用有限元软件对母线模型进行计算模态分析

得到结构的固有频率和振型。通过分析母线外壳X、Y、Z方向振动加速度以及总加速度时域图和频谱图

获得各个方向上振动的频谱特征

总结自由状态下和约束条件下母线外壳的传播特性。

Abstract

When the GIS bus is long or installed incorrectly

the bus will not be centered. This mechanical failurewill cause the GIS guide rod to bear unbalanced force and cause mechanical vibration. In this paper

a single-phaseGIS bus model is established by finite element simulation method

and a sinusoidal load is applied to simulate mis-alignment fault excitation and explore its vibration characteristics. FEM software is used to calculate the model analy-sis of the bus model

and the natural frequency and mode shape of the structure are obtained. By analyzing the vibra-tion accelerations of the busbar shells in the X

and Z directions

as well as the time-domain plots and spectro-grams of the total acceleration

the spectral characteristics of the vibrations in all directions are obtained

and thepropagation characteristics of the busbar shells under free conditions and constraints are summarized.

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