|本期目录/Table of Contents|

[1]高树国,范辉,胡嘉磊,等.变压器用测温光纤的电场及影响因素[J].电机与控制学报,2019,23(02):100-104.[doi:10.15938/j.emc.2019.02.013]
 GAO Shu-guo,FAN Hui,HU Jia-lei,et al.Electric field distribution in optical fibers used in power transformer and its influential factors[J].,2019,23(02):100-104.[doi:10.15938/j.emc.2019.02.013]
点击复制

变压器用测温光纤的电场及影响因素
(PDF)
分享到:

《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
23
期数:
2019年02
页码:
100-104
栏目:
出版日期:
2019-02-15

文章信息/Info

Title:
Electric field distribution in optical fibers used in power transformer and its influential factors
作者:
 高树国1 范辉1 胡嘉磊2 尹毅2
 ( 1. 国网河北省电力公司电力科学研究院,石家庄050021; 2. 上海交通大学电子信息与电气工程学院,上海200240)
Author(s):
 GAO Shu-guo1 FAN Hui1 HU Jia-lei2 YIN Yi2
 ( 1. State Grid Hebei Electric Power Research Institute,Shijiazhuang 050021,China;2. School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
关键词:
变压器 测温光纤 电场计算
Keywords:
power transformer temperature-measuring optical fiber electric field calculation
分类号:
TM 215. 1
DOI:
10.15938/j.emc.2019.02.013
文献标志码:
A
摘要:
针对变压器用测温光纤在电场作用下可能发生老化或绝缘破坏,进而影响电网安全运行的问题,提出了仿真研究方法。以典型的变压器用测温光纤安装为例,通过有限元方法计算光纤及护套材料在交流稳态情况下承受的电场。通过比较不同光纤纤芯半径、光纤护套厚度、光纤护套介电常数情况下的电场分布,研究影响光纤电场分布的因素。结果表明,垫块内光纤护套内径上下部分存在电场集中,可能发生电老化或绝缘破坏。通过改变光纤纤芯半径、护套厚度、护套介电常数,可以改变光纤内电场的分布。为减小电场局部集中,增大护套介电常数是最为有效的手段。
Abstract:
Simulation research is conducted to solve the power grid security problem caused by optical fiber temperature sensors degradation and breakdown in transformers under electric field. In a typical case,by finite element method,electric field distribution in fibers and bundle jackets under AC steady state was calculated. By comparing electric field distribution under different fiber core radius,jacket thickness and jacket permittivity,the influential factors on such distribution was analyzed. The results show that electric field concentration happens near the inner diameter of the jackets in the insulating filling strips between turns. When changing fiber core radius,jacket thickness or jacket permittivity,electric field distribution changes. To reduce such field,one of the most effective ways is to increase the permittivity of the jackets.

参考文献/References:

相似文献/References:

[1]张沛红,单涛,时亚娟,等.变压器端部铁轭夹件肢板区域三维电场分析[J].电机与控制学报,2012,(10):26.
 ZHANG Pei-hong,SHAN Tao,SHI Ya-juan,et al.Three-dimension electric field analysis of yoke clamp limb area at the transformer winding end[J].,2012,(02):26.
[2]曹洁,谢希,吕景顺,等. 自适应广义数学形态学抑制局部放电窄带干扰[J].电机与控制学报,2013,(04):33.
 CAO Jie,XIE Xi,Lü Jing-shun.[J].,2013,(02):33.
[3]王强,唐朝垠,王天施,等. 变压器辅助换流的谐振极型软开关逆变器[J].电机与控制学报,2017,21(11):73.[doi:10.15938/j.emc.2017.11.010]
 WANG Qiang,TANG Chao-yin,WANG Tian-shi,et al. Resonant pole soft-switching inverter with transformer-assisted commutation[J].,2017,21(02):73.[doi:10.15938/j.emc.2017.11.010]
[4]井永腾,王欢,李岩.三相油浸变压器新型磁路设计与性能分析[J].电机与控制学报,2019,23(03):26.[doi:10.15938/j.emc.2019.03.004]
 JING Yong-teng,WANG Huan,LI Yan.Magnetic circuit design and performance analysis for three-phase oil-immersed transformer[J].,2019,23(02):26.[doi:10.15938/j.emc.2019.03.004]

备注/Memo

备注/Memo:
中图分类号:
更新日期/Last Update: 2019-03-24