Title :
Fault detection of irreversible demagnetization based on space harmonics according to equivalent magnetizing distribution
Author :
Kang, D. ; Kim, H. ; Hur, J.
Author_Institution :
Electr. Eng., Univ. of Ulsan, Ulsan, South Korea
Abstract :
In this study, we performed structural and mathematical modeling by using the method of space harmonics in accordance with magnetization conditions of the irreversible demagnetization. Based on the proposed modeling method, we calculated the equivalent magnetizing distribution and the back electric motive force (BEMF) under the demagnetization condition. Finally, we analyzed harmonic components for irreversible demagnetization through the fast Fourier transform (FFT) analysis of the BEMF.
Keywords :
demagnetisation; electric potential; fast Fourier transforms; fault diagnosis; magnetisation; back electric motive force; equivalent magnetizing distribution; fast Fourier transform analysis; fault detection; irreversible demagnetization; mathematical modeling; space harmonics method; structural modeling; Demagnetization; Harmonic analysis; Magnetic flux; Magnetization; Mathematical model; Permanent magnet motors; Permanent magnets;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157410
