气体绝缘全封闭组合电器内金属微粒尺寸数字化推演方法

doi:10.16183/j.cnki.jsjtu.2024.210

上海交通大学学报 ›› 2026, Vol. 60 ›› Issue (4): 664-673.doi: 10.16183/j.cnki.jsjtu.2024.210

• 新型电力系统与综合能源 • 上一篇下一篇

气体绝缘全封闭组合电器内金属微粒尺寸数字化推演方法

张长虹¹, 黎卫国¹, 杨旭¹, 李明洋¹, 王淼², 罗林根²()

¹ 中国南方电网有限责任公司超高压输电公司电力科研院, 广州 510663
² 上海交通大学电气工程系, 上海 200240

收稿日期:2024-06-06 修回日期:2024-09-06 接受日期:2024-10-30 出版日期:2026-04-28 发布日期:2026-04-29
通讯作者: 罗林根 E-mail:llg523@sjtu.edu.cn
作者简介:张长虹(1983—),正高级工程师,研究方向为高压开关故障分析、在线监测及其可靠性提升技术.

Digital Inference Method for Metal Particle Size Inside Gas Insulated Switchgear

ZHANG Changhong¹, LI Weiguo¹, YANG Xu¹, LI Mingyang¹, WANG Miao², LUO Lin’gen²()

¹ Electric Power Research Institute of EHV Transmission Company of China Southern Power Grid Co., Ltd., Guangzhou 510663, China
² Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2024-06-06 Revised:2024-09-06 Accepted:2024-10-30 Online:2026-04-28 Published:2026-04-29
Contact: LUO Lin’gen E-mail:llg523@sjtu.edu.cn

摘要/Abstract

摘要：

自由金属微粒缺陷是气体绝缘全封闭组合电器(GIS)设备中频繁发生的放电缺陷类型之一,对其尺寸参数和放电严重程度的准确估计,有利于掌握设备绝缘损伤情况.本文提出基于数字虚拟测试的GIS内部金属微粒尺寸估计方法.首先,分析金属微粒在GIS中的起跳及其往返运动的数学模型;然后,基于数字化推演所得微粒坐标序列,结合金属微粒往返运动特性,建立微粒尺寸与运动行为的关联关系;最后,提出数字化仿真遍历和运动轨迹相似性分析方法,实现金属微粒尺寸的在线估计,并通过仿真研究验证了所提方法的可行性与准确性.所提方法为利用数字化技术推演GIS设备内部绝缘状态提供了新的思路.

关键词: 气体绝缘全封闭组合电器, 局部放电, 数字化推演, 金属微粒尺寸

Abstract:

Free metal particle defects are one of the frequent discharge defect types in gas insulated switchgear (GIS) equipment. Therefore, accurate estimation of their size and discharge severity is beneficial for understanding the insulation damage of equipment. In this paper, a method is proposed for estimating the size of internal metal particle in GIS through digital virtual test. First, the mathematical model of GIS metal particle jumping and its reciprocating motion is analyzed. Then, a relationship between particle size and its motion behavior is established by using the particle coordinate sequence obtained from digital inversion, and considering the back-and-forth motion characteristics and simulation analysis of metal particles. Finally, digital simulation traversal method and motion trajectory similarity analysis are proposed to achieve online estimation of metal particle size, and the simulation study verifies the feasibility and accuracy of the proposed method, which provides a basis for inferring the internal insulation condition of GIS equipment based on digital technology.

Key words: gas insulated switchgear (GIS), partial discharge, digital inference, metal particle size

中图分类号:

TM835

张长虹, 黎卫国, 杨旭, 李明洋, 王淼, 罗林根. 气体绝缘全封闭组合电器内金属微粒尺寸数字化推演方法[J]. 上海交通大学学报, 2026, 60(4): 664-673.

ZHANG Changhong, LI Weiguo, YANG Xu, LI Mingyang, WANG Miao, LUO Lin’gen. Digital Inference Method for Metal Particle Size Inside Gas Insulated Switchgear[J]. Journal of Shanghai Jiao Tong University, 2026, 60(4): 664-673.

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气体绝缘全封闭组合电器内金属微粒尺寸数字化推演方法

Digital Inference Method for Metal Particle Size Inside Gas Insulated Switchgear

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