Analysis and Optimization of Electrodynamic Force of Grounding Loop Based on Ansys Finite Element Method

GOU Guoying; YANG Jiaolong; LUO Changlu; SU Ge; LI Songlei

doi:10.13296/j.1001-1609.hva.2017.08.018

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Analysis and Optimization of Electrodynamic Force of Grounding Loop Based on Ansys Finite Element Method

更新时间：2025-04-26

- Analysis and Optimization of Electrodynamic Force of Grounding Loop Based on Ansys Finite Element Method
- High VoltageApparatus Vol. 53, Issue 8, Pages: 105-109(2017)
- 作者机构：
  
  河南平芝高压开关有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.08.018
  CLC： TM595
- Published：2017
- 稿件说明：
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[1]勾国营,杨姣龙,骆常璐,苏戈,李松磊.基于Ansys有限元的接地回路电动力分析与优化[J].高压电器,2017,53(08):105-109.

GOU Guoying, YANG Jiaolong, LUO Changlu, et al. Analysis and Optimization of Electrodynamic Force of Grounding Loop Based on Ansys Finite Element Method[J]. High voltageapparatus, 2017, 53(8): 105-109.
[1]勾国营,杨姣龙,骆常璐,苏戈,李松磊.基于Ansys有限元的接地回路电动力分析与优化[J].高压电器,2017,53(08):105-109. DOI： 10.13296/j.1001-1609.hva.2017.08.018.

GOU Guoying, YANG Jiaolong, LUO Changlu, et al. Analysis and Optimization of Electrodynamic Force of Grounding Loop Based on Ansys Finite Element Method[J]. High voltageapparatus, 2017, 53(8): 105-109. DOI： 10.13296/j.1001-1609.hva.2017.08.018.

摘要

GIS设备在中国电网建设中占据着重要位置

设备的安全运行至关重要。在高压设备发生短路故障时

通过设备导体与壳体的短路电流峰值高达171 k A

这对设备的动稳定性和热稳定性都提出了苛刻的要求。针对接地回路

热稳定性考核通过理论计算即可满足要求

但对于动稳定性分析

由于空间结构复杂

理论计算较为困难。文中以小型化550 kV GIS用接地开关的接地回路为研究对象

基于Ansys 16.1的电磁场与结构场进行耦合分析

由电磁场得出接地回路的电流密度与磁通密度分布

给出各部位电动力密度云图

再导入结构场

对接地回路导流排的受力进行强度校核

最终完成导流排结构的优化。通过研究

对比不同结构的仿真结果

分析结构差异

提出了优化设计方案

为高压GIS接地回路的结构改进设计提供了理论基础。

Abstract

High voltage circuit breaker occupies an important position in the grid

the safety of which is essential.The peak of short-circuit current on the conductors and cases of GIS reaches up to 171 k A when high voltage circuit breaker meets short-circuit fault

which puts forward higher requirements to the thermal stability and dynamic stability of GIS. However

difficulty exists when theoretical calculation is conducted for thermal and dynamic stability because of the complexity of spatial structure. Electromagnetic-structure coupling analysis for grounding loop used in miniaturized 550 kV GIS has been conducted in this paper based on Ansys 16.1.The distribution of current density and magnetic flux density has been obtained through electromagnetic field. And the contour of electric power density in all parts is given

which is imported into structure field to check the strength of diversion row in grounding loop. And the structure optimization of diversion row has been realized. The program of design optimization is proposed through the analysis of simulation results of different structures

which provides a theoretical basis for the structural design of grounding loop in high voltage GIS.

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