DocumentCode :
2906672
Title :
A transient 2D model of an electrodynamic wheel moving above a conductive guideway
Author :
Paudel, N. ; Bir, J. ; Paul, S. ; Bobba, D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of North Carolina at Charlotte, Charlotte, NC, USA
fYear :
2011
fDate :
15-18 May 2011
Firstpage :
545
Lastpage :
550
Abstract :
When a magnetic rotor is simultaneously rotated and translationally moved above an aluminum guideway a traveling time-varying magnetic field is created in the air-gap. This field induces eddy currents in the guideway that can simultaneously create suspension and propulsion or braking forces. The transient fields and the forces created by this moving rotor are modeled using a novel 2D analytic based A-φ method in which the presence of the rotor field is incorporated into the boundary conditions of the guideway. The solution is obtained by using the spatial Fourier transform and temporal Laplace transform. The performance of the method is compared with a previously presented 2D transient finite element model.
Keywords :
Fourier transforms; Laplace transforms; air gaps; eddy currents; electrodynamics; finite element analysis; magnetic levitation; rotors; time-varying systems; wheels; 2D transient finite element model; air gap; aluminum guideway; boundary condition; braking force; conductive guideway; eddy current; electrodynamic wheel; magnetic rotor; rotor field; spatial Fourier transform; temporal Laplace transform; transient field; traveling time varying magnetic field; Analytical models; Boundary conditions; Equations; Force; Mathematical model; Rotors; Transient analysis; Halbach rotor; diffusion; eddy currents; levitation; linear motors; maglev; transients;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electric Machines & Drives Conference (IEMDC), 2011 IEEE International
Conference_Location :
Niagara Falls, ON
Print_ISBN :
978-1-4577-0060-6
Type :
conf
DOI :
10.1109/IEMDC.2011.5994657
Filename :
5994657
Link To Document :
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