Comprehensive Optimization for the Structure of Three-Phase Spacer in 252 kV Compact Gas Insulated Metal Enclosed Transmission Line

doi:10.7652/xjtuxb202012017

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Comprehensive Optimization for the Structure of Three-Phase Spacer in 252 kV Compact Gas Insulated Metal Enclosed Transmission Line

更新时间：2025-07-09

- Comprehensive Optimization for the Structure of Three-Phase Spacer in 252 kV Compact Gas Insulated Metal Enclosed Transmission Line
- Vol. 54, Issue 12, Pages: 138-146(2020)
- 作者机构：
  
  电力科学研究院,杭州,310014
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202012017
  CLC： TM216
- Online First：10 December 2020，
  
  Published：2020
- 稿件说明：
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Comprehensive Optimization for the Structure of Three-Phase Spacer in 252 kV Compact Gas Insulated Metal Enclosed Transmission Line[J]. 2020, 54(12): 138-146.
DOI：

Comprehensive Optimization for the Structure of Three-Phase Spacer in 252 kV Compact Gas Insulated Metal Enclosed Transmission Line[J]. 2020, 54(12): 138-146. DOI： 10.7652/xjtuxb202012017.

摘要

为均匀252 kV紧凑型GIL三相盆式绝缘子表面电场和应力场分布

采用智能优化算法对其开展了综合优化研究。建立了三维有限元仿真计算模型

对3种结构三相盆式绝缘子的电场和应力场分布特性进行了比较

择优分析了典型结构参数对电场和应力场分布的影响规律。在此基础上

构建Bernstein方程描述绝缘子表面轮廓

讨论了相应的约束条件和简化方法

应用粒子群算法联合调用COMSOL及MATLAB实现了三相盆式绝缘子的智能结构优化。结果表明:与原始结构相比

优化后绝缘子表面合成场强、切向场强和第一主应力最大值分别下降了13.5%、16.0%、8.5%

均能满足控制值要求; 不规则复杂轮廓优化方法能够有效改善252 kV紧凑型GIL电场和应力场分布。研究结果可为252 kV三相盆式绝缘子的结构设计与改进提供指导和参考。

Abstract

A comprehensive optimization study is carried out by an intelligent algorithm to uniformize the electric and stress field distributions of three-phase spacer in 252 kV compact gas insulated metal enclosed transmission line. 3-D finite element simulation models of the three-phase spacer are established. Distributions of electric and stress fields for three structures are compared and the influences of structural parameters on electric and stress fields are studied. Then

a Bernstein equation is established to describe the profile of insulator surface

and the corresponding constraints and simplification methods are also discussed. The intelligent optimization of the three-phase spacer is realized by combining COMSOL and MATLAB and using a particle swarm algorithm. Results and a comparison with the original structure show that the maximum values of total field

tangential field and stress of the optimized spacer decrease by 13.5%

16.0% and 8.5%

respectively

and all of them meet control values. The proposed optimization method for complex profile efficiently improves the distributions of the electric and stress fields. The results provides guidance and reference for the structural design of 252 kV compact gas insulated metal enclosed transmission line.

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references

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