Research on the vibration characteristics of GIS with the effect of complex high-order harmonics

WU Hong; WU Xutao; WANG Wenzhao; NIU Bo; SHA Weiyan; XIONG Qing; JI Shengchang; WU Zhiyong

doi:10.3969/j.issn.1672-3643.2024.01.006

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Research on the vibration characteristics of GIS with the effect of complex high-order harmonics

更新时间：2026-07-27

- Research on the vibration characteristics of GIS with the effect of complex high-order harmonics
- Ningxia Electric Power Issue 1, (2024)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1672-3643.2024.01.006
  CLC：
- Online First：22 April 2024，
  
  Published：2024
- 稿件说明：
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WU Hong, WU Xutao, WANG Wenzhao, et al. Research on the vibration characteristics of GIS with the effect of complex high-order harmonics[J]. Ningxia Electric Power, 2024, (1).
DOI：

WU Hong, WU Xutao, WANG Wenzhao, et al. Research on the vibration characteristics of GIS with the effect of complex high-order harmonics[J]. Ningxia Electric Power, 2024, (1). DOI： 10.3969/j.issn.1672-3643.2024.01.006.

摘要

新型电力系统源-网-荷侧特性不同于传统电力系统，系统中存在谐波，甚至超高次谐波。谐波对气体绝缘开关设备（gas insulated switchgear

GIS）振动特性产生影响。首先，分析了新型电力系统源侧、网侧以及负荷侧并入电网时产生的谐波种类及成分；其次，搭建GIS谐波激励下振动特性测量平台，结合电力系统中的谐波特性，对不同谐波电流激励下的GIS 振动特征进行试验研究；最后，通过试验发现：GIS外壳振动幅值在轴向呈线性分布，振动大小与端部刚度成反比；当存在多种谐波电流时，谐波之间的和频、差频及倍频使振动频率更加丰富，这使得GIS更容易产生机械谐振。

Abstract

The new power system

characterized by distinct source-grid-load properties compared to traditional power systems

includes harmonics and even ultra-high harmonics.These harmonics can affect the vibration characteristics of the gas-insulated switchgear (GIS).This study begins with an analysis of the types and components of the harmonics generated by the source

grid

and load sides when integrated into the new power system.Then

a test platform for mea-suring the vibration characteristics of GIS under harmonic excitation is built.The study then investigates experimental research on the vibration characteristics of GIS under different harmonic current excitations

considering the specific harmonic characteristics present in power systems.The results indicate that the vibration amplitude of the GIS bus shell displays a linear distribution along the axial direction

with the vibration magnitude being inversely proportional to the end stiffness at the ends.When multiple harmonic currents are present

the interaction of harmonics-through their sum

difference

and doubling frequencies

enriches the vibration frequency spectrum

making it easier for GIS to produce mechanical resonance.

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