BEM-DEM Coupling Calculation of Surface Electric Field for HVDC Converter Valve Shielding System

WANG Zezhong; LI Lifan; LIU Ying; WANG Huan; YANG Xiaoxiao

doi:10.13296/j.1001-1609.hva.2018.03.010

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BEM-DEM Coupling Calculation of Surface Electric Field for HVDC Converter Valve Shielding System

更新时间：2025-04-26

- BEM-DEM Coupling Calculation of Surface Electric Field for HVDC Converter Valve Shielding System
- High VoltageApparatus Vol. 54, Issue 3, Pages: 70-78+85(2018)
- 作者机构：
  
  华北电力大学高电压与电磁兼容北京市重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.03.010
  CLC： TM721.1
- Published：2018
- 稿件说明：
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[1]王泽忠,李立凡,刘莹,王欢,杨箫箫.HVDC换流阀屏蔽系统表面电场边界元与场域元耦合计算[J].高压电器,2018,54(03):70-78+85.

WANG Zezhong, LI Lifan, LIU Ying, et al. BEM-DEM Coupling Calculation of Surface Electric Field for HVDC Converter Valve Shielding System[J]. High voltageapparatus, 2018, 54(3): 70-78+85.
[1]王泽忠,李立凡,刘莹,王欢,杨箫箫.HVDC换流阀屏蔽系统表面电场边界元与场域元耦合计算[J].高压电器,2018,54(03):70-78+85. DOI： 10.13296/j.1001-1609.hva.2018.03.010.

WANG Zezhong, LI Lifan, LIU Ying, et al. BEM-DEM Coupling Calculation of Surface Electric Field for HVDC Converter Valve Shielding System[J]. High voltageapparatus, 2018, 54(3): 70-78+85. DOI： 10.13296/j.1001-1609.hva.2018.03.010.

摘要

绝缘子是直流输电换流阀塔的重要组成部分

针对绝缘子的分析对于换流阀塔的设计具有重要意义。文中考虑支柱绝缘子的换流阀屏蔽系统的表面电场分布

提出了基于积分方程的场域元与边界元耦合的计算方法。将场域元法与边界元法耦合

共同模拟考虑支柱绝缘子的换流阀屏蔽系统。通过与二维有限元算法的对比

验证了算法的正确性。建立不同情况下的换流阀屏蔽系统模型

采用耦合算法对其进行分析

得出了考虑绝缘子前后屏蔽系统的电场分布以及绝缘子内部的电场分布

提高了计算精度

拓展了传统边界元算法的应用范围。

Abstract

The insulator is an important part of the HVDC converter valve

and the electric field analysis of the converter valve is very important for the design of the HVDC converter valve. In this paper

the surface electric field distribution of the converter valve shield system considering the post insulators. In order to improve the calculationefficiency

the integral equation field domain element and boundary element coupling method is proposed. The integralequation field domain element method is introduced into boundary element method（BEM）to deal with the calculation.The method is proved to be correct through the comparison with 2 D finite element method result. The post insulatormodels in different situation is built

by use of coupling method

the surface electric field intensity of shielding system and the electric field in the insulator are analyzed

and the range of application of boundary element method is broaden.

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