Research Progress on Functionally Graded Materials for High Voltage Gas Insulated Transmission Apparatus

LI Jin; WANG Zehua; CHEN Yun; CUI Boyuan; LIANG Hucheng; DU Boxue

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Research Progress on Functionally Graded Materials for High Voltage Gas Insulated Transmission Apparatus

更新时间：2025-12-08

- Research Progress on Functionally Graded Materials for High Voltage Gas Insulated Transmission Apparatus
- Vol. 46, Issue 7, Pages: 2471-2477(2020)
- 作者机构：
  
  1. 天津大学电气自动化与信息工程学院
  2. 国网天津市电力公司城南供电公司
  3. 中国电力科学研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 July 2020，
  
  Published：2020
- 稿件说明：
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LI Jin, WANG Zehua, CHEN Yun, et al. Research Progress on Functionally Graded Materials for High Voltage Gas Insulated Transmission Apparatus[J]. 2020, 46(7): 2471-2477.
DOI：

LI Jin, WANG Zehua, CHEN Yun, et al. Research Progress on Functionally Graded Materials for High Voltage Gas Insulated Transmission Apparatus[J]. 2020, 46(7): 2471-2477. DOI：

摘要

环氧树脂绝缘子作为高压气体绝缘输电设备的关键部件

其沿面电场分布的均匀度直接影响整个设备乃至电力系统的绝缘水平。为此在传统功能梯度绝缘子研究基础上

提出利用表层功能梯度材料（surface functionally gradedmaterials

SFGM）绝缘子来调控气固界面电场分布

达到提升气固绝缘系统耐电强度的目的。首先对FGM绝缘子的经典制备工艺（如离心法、3D打印和柔性浇注）及其电场调控效果进行简要汇总

然后重点介绍了应用于交直流系统的SFGM绝缘子的工作原理、制备工艺和电场调控效果。利用梯度磁控溅射、梯度氟化、涂覆和离心的手段在绝缘子表层构造介电参数梯度分布

相比于FGM绝缘子

SFGM绝缘子无需改变绝缘子原有的生产工艺和机械性能

方便构造任意表层介电梯度分布。在未来特高压输电工程中

SFGM绝缘子可以进一步提高气体绝缘输电设备的可靠性

且实现推广应用所需的成本更低。

Abstract

Epoxy insulators

as the main insulation components

play a significant role in high-voltage gas insulated transmission apparatuses

whose insulation performances are directly related to the electric field distributions along insulator surfaces. Based on the traditional researches on functionally graded insulator

the surface functionally graded material（SFGM） insulator was proposed to regulate the electric field distribution along the insulator surface and to improve the insulation performance of the gas-solid insulation system. Moreover

the fabrication techniques（i.e. centrifugation

3 D printing and flexible casting） and the regulation effects of classical FGM insulators as well as the principle

fabrication techniques and electric field regulation effects of SFGM insulators

were introduced. Graded sputtering

graded fluorination

dip coating and centrifugation techniques were used to achieve functionally graded distributions of permittivity and conductivity on the surfaces of insulators. Compared with the conventional insulators

the fabrication techniques and the mechanical properties of the SFGM insulators are almost unchanged. In the future

SFGM insulators can be used to improve the reliability of ultra-high voltage power transmission systems with much less cost than that of FGM insulators.

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