电气工程学报 ›› 2015, Vol. 10 ›› Issue (11): 58-62.doi: 10.11985/2015.11.009

• 理论研究 • 上一篇    下一篇

基于三相GIS电场分布的模型简化研究

李晓丹,李水清,方临川,田晓霄   

  1. 正泰电气股份有限公司 上海 201614
  • 收稿日期:2015-08-04 出版日期:2015-11-25 发布日期:2015-11-25
  • 作者简介:李晓丹 女 1987年生,工程师,主要从事电气产品电磁场仿真工作。|李水清 男 1969年生,高级工程师,主要从事输配电产品研发及管理工作。

Research on the Model Simplification Based on the Three-Phase GIS Electric Field Analysis

Li Xiaodan ,Li Shuiqing ,Fang Linchuan ,Tian Xiaoxiao    

  1. Chint Electric Co. Ltd Shanghai 201614 China
  • Received:2015-08-04 Online:2015-11-25 Published:2015-11-25

摘要:

高压电场计算采用有限元法,针对有限元仿真精度与效率的矛盾,提出一种适用于电场有限元分析的模型简化原则。基于Infolytica软件建立145kV GIS三相母线模型,并分别以三相分支母线与盆式绝缘子为仿真目标,分析雷电冲击电压下模型的电场强度分布情况。以三相分支母线为仿真目标,三相分支母线位于简化模型的中心位置,简化模型与原模型的电场强度分布情况一致。以盆式绝缘子为仿真目标,盆式绝缘子位于简化模型的边缘位置,简化模型与原模型的电场强度分布差异较大。两种仿真结果对比表明,在有限元电场模型简化过程中,应把要分析的区域基本上处于中心位置,避免两边电场突变影响仿真精度。

关键词: 电场分析, 模型简化, 有限元分析, 三相母线模型

Abstract:

The finite element method is used to high voltage electric field calculation, for the contradiction between precision and efficiency in finite element electric field analysis, a kind of model simplification principle applied in electric field finite element analysis has been put forward. Three phase busbar model of 145kV GIS has been built based on Infloytica software. With the three-phase bus bar and basin insulator as simulation target respectively, the electric field intensity distribution of the model has been analyzed under lightning impulse voltage. Chosen three-phase bus bar as simulation target, it’s located in the center of the simplified model, the electric field intensity distribution of simplified model consistent with the original model. Chosen basin insulator as simulation target, it islocated in the edge of simplified model, the electric field intensity distribution of simplified model and the original model are differences. Compared of two kinds simulation results shown that during the simplification of finite element electric field model, the analysis of the area should be located in the center position to avoid influencing the simulation accuracy caused by mutating electric field on both sides.

Key words: Electric field analysis, model simplification, finite element analysis, three phase bus bar model

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