Detection of ferromagnetic resonance for distribution system

被引：0
|
作者：
Yang, Rui [1 ]
Zeng, Xiangjun [1 ]
Yang, Xiangui [1 ]
机构：
[1] Changsha Univ Sci & Technol, Sch Elect & Informat Engn, Hunan Prov Key Lab Smart Grids Operat & Control, Changsha 410076, Hunan, Peoples R China
来源：
2014 INTERNATIONAL CONFERENCE ON POWER SYSTEM TECHNOLOGY (POWERCON) | 2014年
关键词：
MALLAT; FFT; ferromagnetic resonance; EMTP; detection;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Neutral Ineffectively Earthed Power Systems widely exist in the low and medium voltage distribution networks in China. With transient excitation, electromagnetic voltage transformer is easily saturated to cause ferromagnetic resonance. Combined with the advantages of wavelet analysis and FFT transform, a novel method for detecting the ferromagnetic resonance signal is proposed in this thesis. The above method combined the MABLAB algorithm with fast Fourier transform. The MATLAB algorithm was used to ensure the excitation and the start time of ferromagnetic resonance, and FFT algorithm was used to ensure the frequency of the ferromagnetic resonance signal for ferromagnetic resonance identification. EMTP and MATLAB simulation results showed that this method can extract and analyze the ferromagnetic resonance signal accurately and effectively which can improve the reliability and practicability and it possesses great significance.
引用
收藏
页码：922 / 926
页数：5
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