Research on Mechanical-electrical Collaborative Design of UHV Converter Valves Considering Seismic Performance

ZHAO Weijie; CUI Zhanglun; LI Lingfei; LI Haibo; JIANG Yi; GENG Yaoqiang; HUANG Jianxiang

doi:10.13296/j.1001-1609.hva.2026.06.017

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Research on Mechanical-electrical Collaborative Design of UHV Converter Valves Considering Seismic Performance

Research & Analysis | 更新时间：2026-06-10

- Research on Mechanical-electrical Collaborative Design of UHV Converter Valves Considering Seismic Performance
- High Voltage Apparatus Vol. 62, Issue 6, Pages: 138-145(2026)
- 作者机构：
  
  中国南方电网有限责任公司超高压输电公司昆明局，昆明 650217
  云南省特高压直流智能运检与安全运行工程研究中心，昆明 650217
  昆明理工大学电力工程学院，昆明 650500
  中国南方电网有限责任公司超高压输电公司昆明局研究生工作站，昆明 650217
  南方电网科学研究院有限责任公司，广州 510663
  清华四川能源互联网研究院，成都 610042
  许昌开普电气研究院有限公司，河南许昌 461000
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2026.06.017
  CLC：
- Received：24 December 2025，
  
  Revised：2026-02-20，
  
  Published：16 June 2026
- 稿件说明：
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ZHAO Weijie, CUI Zhanglun, LI Lingfei, et al. Research on Mechanical-electrical Collaborative Design of UHV Converter Valves Considering Seismic Performance[J]. High Voltage Apparatus, 2026, 62(6): 138-145.
DOI：

ZHAO Weijie, CUI Zhanglun, LI Lingfei, et al. Research on Mechanical-electrical Collaborative Design of UHV Converter Valves Considering Seismic Performance[J]. High Voltage Apparatus, 2026, 62(6): 138-145. DOI： 10.13296/j.1001-1609.hva.2026.06.017.

摘要

为验证±800 kV/5 000 A特高压换流阀在多重安全约束下的综合设计合理性，文中基于已通过抗震验证的结构设计方案，开展全屏蔽系统电场数值模拟分析。采用Solidworks建立1∶1简化三维模型，基于ANSYS Maxwell仿真软件，依据相关标准并考虑海拔修正系数施加边界条件，运用有限元法开展电场仿真计算。结果表明，在保证卓越抗震性能的基础上，换流阀各部位最大场强仍满足2.0 kV/mm的极端工况控制值，顶屏蔽1.4 kV/mm、底屏蔽1.89 kV/mm、层屏蔽1.5 kV/mm、层间水管1.0 kV/mm，且电场分布均匀。进一步，结合抗震数据提出“机械—电气协同裕度”框架，论证底屏蔽场强接近控制值并非设计缺陷，而是在保障抗震性能前提下电气性能的系统权衡。为特高压复杂装备的多物理场协同设计提供了可借鉴的方法论与工程范例。

Abstract

To verify the comprehensive design rationality of ±800 kV/5000 A UHV converter valve under multiple safety constraints

in this paper the numerical simulation analysis on the electric field of the full shielding system is performed based on the seismic verification-proven structural design scheme. A 1∶1 simplified three-dimensional model is set up using Solidworks. The electric field simulation calculation is performed based on the ANSYS Maxwell simulation software

in accordance with relevant standards and consideration of the application boundary conditions of the altitude correction factor as well as the use of the finite element method.The results show that

on the basis of ensuring excellent seismic performance

the maximum electric field strength at each part of the converter valve still satisfies the extreme operating condition control value of 2.0 kV/mm

1.4 kV/mm for the top shield

1.89 kV/mm for the bottom shield

1.5 kV/mm for the layer shield

and 1.0 kV/mm for the interlayer water pipe

with uniform electric field distribution. Furthermore

a mechanical-electrical collaborative margin framework is proposed in combination with seismic data . It is demonstrated that the electric field strength of the bottom shield approaching the control value is not a the design defect

but a systematic trade-off of electrical performance under the premise of guaranteeing seismic performance. This work provides a referable methodology and engineering example for the multi-physics collaborative design of complex UHV equipment.

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