1 100 kV交流变压器胶浸纤维套管电容芯子及均压罩参数优化

杨雁飞; 邱逸群; 黄道春; 邓永清; 兰贞波; 邓建钢

杨雁飞,邱逸群,黄道春,邓永清,兰贞波,邓建钢.1 100 kV交流变压器胶浸纤维套管电容芯子及均压罩参数优化[J].电测与仪表,2025,62(11):80-87.
YANG Yanfei,QIU Yiqun,HUANG Daochun,DENG Yongqing,LAN Zhenbo,DENG Jiangang.Parameter optimization of 1100 kV AC transformer resin-impregnated fiber bushing capacitor core and grading shield[J].Electrical Measurement & Instrumentation,2025,62(11):80-87.

1 100 kV交流变压器胶浸纤维套管电容芯子及均压罩参数优化

Parameter optimization of 1100 kV AC transformer resin-impregnated fiber bushing capacitor core and grading shield

DOI：10.19753/j.issn1001-1390.2025.11.009

中文关键词: 有限元法胶浸纤维套管电场分布电容芯子均压罩

英文关键词:finite element method, resin-impregnated fiber bushing, electric field distribution, capacitive core, grading shield

基金项目:湖北省重点研发计划项目（2021BAA182）

作者中文名	作者英文名	单位
杨雁飞	YANG Yanfei	武汉大学电气与自动化学院，武汉 430072
邱逸群	QIU Yiqun	武汉大学电气与自动化学院，武汉 430072
黄道春	HUANG Daochun	武汉大学电气与自动化学院，武汉 430072
邓永清	DENG Yongqing	武汉大学电气与自动化学院，武汉 430072
兰贞波	LAN Zhenbo	国网电力科学研究院武汉南瑞有限责任公司，武汉 430074
邓建钢	DENG Jiangang	国网电力科学研究院武汉南瑞有限责任公司，武汉 430074

摘要点击次数: 18

中文摘要:

高压套管是变压器的重要组成部分，胶浸纤维套管因其具有阻燃防爆特性，近年来得到推广应用，但其结构参数优化设计研究不足。论文根据1 100 kV交流变压器胶浸纤维套管的初设结构参数，搭建了1 100 kV交流变压器胶浸纤维套管有限元模型，分析了电容芯子和均压罩的电场分布，研究了均压罩各结构尺寸对其最大电场强度的影响规律，并考虑实际生产工艺及工作需要，提出了一种套管电容芯子及均压罩的设计方案。结果表明，与初始方案相比，优化后电容芯子极板端部的最大场强降低了16.6%，径向最大场强降低了8.9%，极板层数降低了9层；优化后均压罩的最大场强为7.725 kV/mm，均压罩结构显著减小。研究结果可用于指导1 100 kV交流变压器胶浸纤维套管的结构设计。

英文摘要:

High-voltage bushings are an important part of transformers. Resin-impregnated fiber bushings have been popularly used in recent years because of their flame-retardant and explosion-proof characteristics, but there is insufficient research on the optimal design of their structural parameters. A finite element model of resin- impregnated fiber bushing of 1 100 kV alternating current transformer was built based on the primary structural parameters. The electric field distribution of the capacitor core and the grading shield was analyzed, the influence of the structural dimensions of the grading shield on its maximum electric field intensity was studied, and a design scheme of the capacitor core and grading shield of the bushing was put forward considering the actual production process and work requirements. The results show that, compared with the primary scheme, the maximum electric field intensity at the end of the plate of the optimized capacitor is decreased by 16.6%, the maximum electric field intensity in the radial direction is decreased by 8.9%, and the number of layers of the plate is decreased by 9 layers. The maximum electric field intensity of the optimized grading shield is 7.725 kV/mm, and the structure of the grading shield is significantly reduced. The research results can be used to guide the structural design of resin- impregnated fiber bushings for 1 100 kV AC transformers.

查看全文查看/发表评论下载PDF阅读器

关闭