电力系统保护与控制2017，Vol.45Issue(8)：121-125,5.DOI:10.7667/PSPC160664
小波算法在变压器励磁涌流中的应用研究
Application of wavelet algorithm in the transformer inrush current
孙庆森 1张海峰 1王猛 1王华兴1
作者信息
- 1. 国网泰安供电公司,山东 泰安271000
- 折叠
摘要
Abstract
In order to meet the demand of electrical equipment for high-performance power transformer, this paper studies inrush current phenomenon existing in high-power transformer and establishes the simulation model. The transformer inrush current phenomena is analyzed and mathematical modeling is done by using a new wavelet algorithm, the generating mechanism of three-phase transformer magnetizing inrush current and signal extraction method are studied, and the accurate fault recognition model is established. Finally, the simulation system is designed through Matlab/Simulink to achieve the recognition of three-phase transformer magnetizing inrush current waveform. Simulation results show that the simulation model can extract the relevant characteristics of the transformer inrush current, which provides a theoretical support for improving the performance of the transformer.关键词
变压器/励磁涌流/小波算法/建模/信号提取Key words
transformer/inrush current/wavelet algorithm/modeling/signal extraction引用本文复制引用
孙庆森,张海峰,王猛,王华兴..小波算法在变压器励磁涌流中的应用研究[J].电力系统保护与控制,2017,45(8):121-125,5.
