基于FRA曲线二阶导和面积差的变压器绕组变形分析  

Analysis of Transformer Winding Deformation Based on Second Order Derivative and Area Difference of FRA Curve

作　　者：张健能 李春阳 张银 马旭聪 唐文虎[2] ZHANG Jian-neng;LI Chun-yang;ZHANG Yin;MA Xu-cong;TANG Wen-hu(Foshan Power Supply Bureau,Guangdong Power Grid Co.,Ltd.,Foshan 528000,China;School of Electric Power Engineering,South China University of Technology,Guangzhou 510641,China)

机构地区：[1]广东电网有限责任公司佛山供电局,广东佛山528000 [2]华南理工大学电力学院,广东广州510641

出　　处：《变压器》2021年第7期29-34,共6页Transformer

基　　金：广东电网有限责任公司科技项目资助(项目编号:GDKJXM20190005)。

摘　　要：提出一种基于FRA曲线二阶导数和不同曲线间面积差的曲线偏移方向和绕组变形严重程度判定新方法,并通过试验验证了所提方法的可行性和高效性。Based on the second order derivative of FRA curve and the area difference between different curves,a new method is proposed to determine the direction of curve deviation and the severity of winding deformation.The feasibility and efficiency of the method are verified by experiments.

关 键 词：电力变压器 绕组变形 频率响应分析 二阶导数 面积差 

分 类 号：TM401.1[电气工程—电器]