Analysis on Nonlinear and Anisotropic Electric Field about Valve-side Winding of Converter Transformer

LI Xiao-hui; LI Yan; LI Dong-xue; Eerhemubayaer

doi:10.13296/j.1001-1609.hva.2012.04.005

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Analysis on Nonlinear and Anisotropic Electric Field about Valve-side Winding of Converter Transformer

更新时间：2025-04-26

- Analysis on Nonlinear and Anisotropic Electric Field about Valve-side Winding of Converter Transformer
- High VoltageApparatus Vol. 48, Issue 4, Pages: 18-22(2012)
- 作者机构：
  
  沈阳工业大学特种电机研究所
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2012.04.005
  CLC： TM42
- Published：2012
- 稿件说明：
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[1]李晓辉,李岩,李冬雪,额尔和木巴亚尔.换流变压器阀侧绕组非线性各向异性直流电场分析[J].高压电器,2012,48(04):18-22.

LI Xiao-hui, LI Yan, LI Dong-xue, et al. Analysis on Nonlinear and Anisotropic Electric Field about Valve-side Winding of Converter Transformer[J]. High voltageapparatus, 2012, 48(4): 18-22.
[1]李晓辉,李岩,李冬雪,额尔和木巴亚尔.换流变压器阀侧绕组非线性各向异性直流电场分析[J].高压电器,2012,48(04):18-22. DOI： 10.13296/j.1001-1609.hva.2012.04.005.

LI Xiao-hui, LI Yan, LI Dong-xue, et al. Analysis on Nonlinear and Anisotropic Electric Field about Valve-side Winding of Converter Transformer[J]. High voltageapparatus, 2012, 48(4): 18-22. DOI： 10.13296/j.1001-1609.hva.2012.04.005.

摘要

由于绝缘材料的电阻率具有非线性和各向异性

故在计算换流变压器阀侧绕组直流电场时需要考虑到绝缘材料的非线性和正交各向异性。笔者采用ANSYS二次开发技术

计算了在考虑绝缘材料电阻率随场强和温度变化情况下的非线性直流电场及非线性各向异性直流电场。计算结果表明

在考虑绝缘材料电阻率非线性和各向异性的情况下

电场分布与不考虑这些条件下的分布有很大的不同。因此

换流变压器阀侧绕组的直流电场应该按非线性各向异性场计算。

Abstract

The nonlinearity and anisotropy of insulating materials ought to be considered in calculation of the electric field about valve-side winding of a converter transformer

as resistivity of insulating materials is nonlinear and anisotropic.In this paper

ANSYS secondary development is adopted to calculate the nonlinear DC electric field and the nonlinear and anisotropic DC electric field by taking into account the variations of insulation resistivity with temperature and electric field.The results show that the electric field distribution is very different in consideration of the nonlinearity and anisotropy of resistivity of insulating materials compared with that without considering these conditions.Therefore

the electric field about valve-side winding of a converter transformer should be calculated according to nonlinear and anisotropic electric field.

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Related Institution

Institute of Special Electrical Machines,Shenyang University of Technology

Key Laboratory of Control of Power Transmission and Conversion, Shanghai Jiao Tong University

Super High Voltage Company of State Grid Ningxia Electric Power Co., Ltd.

School of Energy and Power Engineering, Xi'an Jiaotong University

Electric Power Research Institute of EHV Power Transmission Company of China Southern Power Grid Co

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