Page 137 - 《中国电力》2026年第5期

第 59 卷 第 5 期 Vol. 59, No. 5
2026 年 5 月 ELECTRIC POWER May 2026

引用格式：王震宇, 石军浩, 王玮, 等. 基于电-热-力耦合的复杂工况配网避雷器应力分布[J]. 中国电力, 2026, 59(5): 133−141.
Citation: WANG Zhenyu, SHI Junhao, WANG Wei, et al. Study on stress distribution of distribution network arresters under complex operating
conditions based on electro-thermal-mechanical coupling[J]. Electric Power, 2026, 59(5): 133−141.

基于电-热-力耦合的复杂工况配网避雷器应力分布

王震宇 ，石军浩 ，王玮 ，白银浩 ，艾学勇 2
1
1
1
1
(1. 国网河南省电力公司电力科学研究院，河南 郑州 450000；
2. 国网河南省电力公司郑州供电公司，河南 郑州 450099)
Study on stress distribution of distribution network arresters under complex
operating conditions based on electro-thermal-mechanical coupling

WANG Zhenyu , SHI Junhao , WANG Wei , BAI Yinhao , AI Xueyong 2
1
1
1
1
(1. State Grid Henan Electric Power Company Electric Power Research Institute, Zhengzhou 450000, China; 2. Zhengzhou Power Supply
Company, State Grid Henan Power Company, Zhengzhou 450099, China)

Abstract: Zinc oxide arresters are the main devices for This work is supported by Science and Technology Project of
preventing lightning strike faults in distribution network lines. State Grid Henan Electric Power Company (No.521702240012).
In the actual operation process, the operating conditions of Keywords: zinc oxide arrester; multi-physical field coupling;
arresters are complex and diverse. When subjected to various multiple lightning strike
unbalanced forces caused by factors such as non-vertical
installation methods, wind force and horizontal tensile force, 摘 要：氧化锌避雷器是防止配网线路雷击事故的主要
the thermal stress superimposed by lightning impulse is an 装 置 。 在 实 际 运 行 过 程 中 ， 避 雷 器 的 运 行 工 况 复 杂 多
样，在遭受由非垂直安装方式、风力和水平拉力等因素
important cause of aging and failure of arresters. Considering
the influence of various unbalanced forces and multiple 导 致 的 多 种 不 平 衡 受 力 ， 叠 加 雷 电 冲 击 作 用 的 热 应 力 ，
lightning strikes, based on the principle of multi-field coupling 是导致避雷器老化和故障的重要原因。考虑多种不平衡
受力和多重雷击的影响，基于电-热-力多场耦合的原理，
of electricity, heat and force, a simulation model for calculating
搭建了避雷器运行参数计算的仿真模型。分析了整支 10 kV
the operating parameters of arresters was established. The
避雷器在不同工况下的内部电、热、力分布情况。计算
internal distribution of electricity, heat and force of the entire
结果表明，多重雷击较单一雷击在避雷器内部氧化锌电
10kV arrester under different working conditions was analyzed.
阻片界面处应力有 15% 左右的增加；不平衡受力和雷击
The calculation results show that multiple lightning strikes
联合作用下氧化锌电阻片界面处应力比不平衡受力与雷
increase the stress at the interface of zinc oxide resistance
电冲击分别单独作用时的应力之和增加了 25% 左右；热
sheets inside the arrester by about 15% compared with a single
应力和机械应力的相互耦合，出现了应力非线性增强现
lightning strike. Under the combined action of unbalanced force
象。研究结果为从应力的角度分析复杂运行工况下避雷
and lightning strike, the stress at the interface of zinc oxide
器的故障原因提供参考。
resistance sheets increases by about 25% compared with the
关键词：氧化锌避雷器；多物理场耦合；多重雷击
sum of the stresses when unbalanced force and lightning strike
DOI：10.11930/j.issn.1004-9649.202509024

act separately. The mutual coupling of thermal stress and
mechanical stress The phenomenon of nonlinear stress
0 引言
enhancement occurred. The research results provide a reference
for analyzing the fault causes of surge arresters under complex
operating conditions from the perspective of stress. 随着城镇化进程不断推进，电力系统对配电
网的供电能力和可靠性提出了更高的要求 [1-6] 。氧
收稿日期：2025−09−10； 修回日期：2026−03−19。 化锌避雷器是防止配网线路雷击故障、保障供电
基金项目：国网河南省电力公司科技项目（521702240012）。 可靠性的有效方法和主要措施，其可靠性直接关

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