Analysis of a Novel Switched-Flux Memory Motor Employing a Time-Divisional Magnetization Strategy

This paper presents a novel switched-flux memory motor (SFMM) by artfully incorporating the flux-mnemonic concept into the conventional switched-flux permanent magnet machine. The magnetic susceptibility of AlNiCo PM provides the flexible online controllability of air-gap flux by imposing a transien...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2014-02, Vol.50 (2), p.849-852
Main Authors: Yang, Hui, Lin, Heyun, Dong, Jianning, Yan, Jianhu, Huang, Yunkai, Fang, Shuhua
Format: Article
Language:English
Subjects:
Brushless motors
Cross-disciplinary physics: materials science
rheology
Demagnetization
Electromagnetic analysis
Exact sciences and technology
hysteresis model
Hysteresis motors
Magnetic hysteresis
Magnetism
Magnetization
Materials science
memory machine
Other topics in materials science
permanent magnet
Permanent magnet motors
Physics
Saturation magnetization
switched-flux
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Summary:This paper presents a novel switched-flux memory motor (SFMM) by artfully incorporating the flux-mnemonic concept into the conventional switched-flux permanent magnet machine. The magnetic susceptibility of AlNiCo PM provides the flexible online controllability of air-gap flux by imposing a transient current pulse. To uniformize magnetization levels of PMs, a time-divisional magnetization strategy (TDMS) is proposed. Due to the uniqueness of hysteresis nonlinearity and instability regarding AlNiCo PM operating point, the time-stepping finite element method (TSFEM) dynamically coupled with a nonlinearity-involved parallelogram hysteresis model (NIPHM) of AlNiCo PM is performed to investigate the electromagnetic performance of the proposed SFMM. The results derived from the combinative algorithm verifies the flux-adjustable capability of the proposed motor equipped with TDMS and the validity of the proposed NIPHM.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2013.2278849