电测与仪表2017，Vol.54Issue(5)：101-106,6.
500kV变压器直流偏磁下的铁心损耗分析研究
Analysis and research of core loss in 500 kV transformer under DC bias
赵欣 1李强 2叶红枫 2山江川 2刘念 1王贺新1
作者信息
- 1. 四川大学电气信息学院,成都610065
- 2. 中核核电运行管理有限公司,浙江海盐314300
- 折叠
摘要
Abstract
In order to study the core loss of transformers under DC bias,this paper takes a 500 kV main transformer in a nuclear power plant as an example,and a two-dimensional simulation model tbr core loss of transformer under DC bias is constructed based on a A-φ algorithm of the 2D finite element transient magnetic.In this simulation,with the DC bias current increasing from 0 A to 30 A,the distribution of core loss in different core routes of transformers can be obtained.The result of study shows,with the increase of the DC bias current,the excitation current can produce distortion and large even harmonics,which leads to the increase of the local core loss,and the change of the core loss distribution.Among them,the area connected the main yoke with the yoke are most affected by DC bias,and the horizontal routes are more affected than the vertical routes under DC bias.关键词
变压器/直流偏磁/铁心损耗/不同路径/A-φ算法Key words
transformer/DC bias/core loss/different routes/A-φ algorithm分类
信息技术与安全科学引用本文复制引用
赵欣,李强,叶红枫,山江川,刘念,王贺新..500kV变压器直流偏磁下的铁心损耗分析研究[J].电测与仪表,2017,54(5):101-106,6.
