电测与仪表2017，Vol.54Issue(23)：111-117,7.
基于Sinc信号的变压器绕组频响曲线检测方法
Detection method of transformer winding frequency response curve based on Sinc signal
王文山 1刘云鹏 2程槐号 2周峰 1赵雪骞 1胡焕2
作者信息
- 1. 国网北京市电力公司,北京100031
- 2. 华北电力大学河北省输变电设备安全防御重点实验室,河北保定071003
- 折叠
摘要
Abstract
In order to overcome the shortcoming of excessive attenuation of high-frequency components of traditional pulse frequency response method on detecting the deformation of power transformer winding,a novel method of obtaining the frequency response curve of the transformer winding based on the Sinc signal is proposed in this paper.The frequency characteristics of the Sinc signal and the pulse signal were compared theoretically,and the advantage of the Sinc signal was explained.Finally,the tests of the customized transformer winding in the laboratory were carried out by using the Sinc signal and the pulse signal respectively,and the detection results of the two signals were compared by the correlation coefficient.The experimental results show that the frequency response curve of stable and wide frequency domain can be obtained by using Sinc signal as the excitation source,and the detection result of this method is more accurate than that of traditional pulse frequency response method.关键词
变压器/绕组变形/脉冲响应法/Sinc信号Key words
transformer/winding deformation/pulse response method/Sinc signal分类
信息技术与安全科学引用本文复制引用
王文山,刘云鹏,程槐号,周峰,赵雪骞,胡焕..基于Sinc信号的变压器绕组频响曲线检测方法[J].电测与仪表,2017,54(23):111-117,7.
