基于有限元方法的35 kV干式空心并联电抗器匝间电场分布研究  

Analysis of 35 k V Dry-type Air-core Reactors Turn-to-turn Field Distribution Based on the Finite Element Method

作　　者：彭庆军 姜雄伟[2] 马仪 钱国超 颜冰 邹德旭 周天春[3] 

机构地区：[1]云南电网有限责任公司电力科学研究院,昆明650106 [2]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400030 [3]电力规划设计总院,北京100120

出　　处：《高压电器》2018年第2期147-152,共6页High Voltage Apparatus

基　　金：中国博士后科学基金资助(2014M552552XB)~~

摘　　要：深入开展35 k V干式空心电抗器匝间电场分布研究,对35 k V干式空心电抗器匝间放电故障分析和提高35 k V干式空心电抗器的可靠运行具有重要意义。为此,文中基于有限元仿真计算开展了35 k V干式空心电抗器匝间电场分布研究。研究结果表明:35 k V干式空心电抗器外层支路匝间电场强度大于内层支路的匝间电场强度,且由于35 k V干式空心电抗器电磁场分布的特殊性导致了每层支路中端部的匝间电场强度小于中间部分的匝间电场强度;10 k Hz下的匝间电压比与50 Hz下的匝间电压比近似相同。To study the turn-to-turn electric field distribution in 35 k V dry-type air-core reactor,has a greatsignificance on the mechanism of turn-to-turn discharge fault,and improve its reliability. Therefore,this papercarried out the research of turn-to-turn field distribution in dry-type air-core reactor based on the finite elementsimulations. The analysis results indicated that the intensity of inter-turn electric field in the outer branch is greaterthan that in the inner branch. The particularity of the electromagnetic field distribution in 35 k V dry-type air-corereactor leads to the result of end inter-turn electric field intensity in each layer of branch is less than that in themiddle section. The inter-turn voltage ratio under 10 k Hz and 50 Hz is approximately the same.

关 键 词：干式空心电抗器 有限元仿真 电磁场 匝间电场 

分 类 号：TM472[电气工程—电器]