Finite element analysis of flux-reversal machine considering BEMF current of a switch-off phase and v-i characteristics of a transistor and a freewheeling diode

This paper describes the effect of pulsating current generated by back-electromotive force (BEMF) current of switch-off phase in flux-reversal machine (FRM) which is driven by 120deg square wave voltage sources. A two-dimension time-stepped voltage source finite element analysis using a direct conve...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2006-04, Vol.42 (4), p.1039-1042
Main Authors: Tae Heoung Kim, Tae Heoung Kim, Sung Hong Won, Sung Hong Won, Ju Lee, Ju Lee
Format: Article
Language:English
Subjects:
Applied sciences
Back-electromotive force (BEMF)
Construction
Convergence
Cross-disciplinary physics: materials science
rheology
Digital signal processing
digital signal processor (DSP)
Digital signal processors
Diodes
Electric potential
Electromagnetic analysis
Electromagnetic fields
Exact sciences and technology
Fibre reinforced metals
Finite element method
finite element method (FEM)
Finite element methods
flux-reversal machine (FRM)
Magnetism
Materials science
Mathematical analysis
Metals. Metallurgy
Other topics in materials science
permanent magnet
Physics
Powder metallurgy. Composite materials
Production techniques
Prototypes
pulse width modulation (PWM) mode
Signal analysis
Voltage
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Summary:This paper describes the effect of pulsating current generated by back-electromotive force (BEMF) current of switch-off phase in flux-reversal machine (FRM) which is driven by 120deg square wave voltage sources. A two-dimension time-stepped voltage source finite element analysis using a direct convergence method is proposed to analyze an electromagnetic field and the BEMF current. To prove the propriety of the proposed analysis method, we build the prototype FRM and a digital signal processor (DSP) installed controller as a set for the experiment
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2006.871458