Design Model of Null-Flux Coil Electrodynamic Suspension for the Hyperloop

The Hyperloop has been developed using various technologies to reach a maximum speed of 1200 km/h. Such technologies include magnetic levitation technologies that are suitable for subsonic driving. In the Hyperloop, the null-flux electrodynamic suspension (EDS) system and superconducting magnets (SC...

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Bibliographic Details
Published in:Energies (Basel) 2020-10, Vol.13 (19), p.5075
Main Authors: Lim, Jungyoul, Lee, Chang-Young, Lee, Jin-Ho, You, Wonhee, Lee, Kwan-Sup, Choi, Suyong
Format: Article
Language:English
Subjects:
Computer applications
Design
Design analysis
Driving ability
Electric potential
electrodynamic suspension (EDS)
Electromotive forces
Fluctuations
Flux
Fourier analysis
high-temperature superconducting (HTS)
Hyperloop
Magnetic fields
Magnetic levitation
Magnetic levitation systems
magnetically levitated (Maglev)
null-flux levitation/guidance
Numerical analysis
Numerical methods
Ordinary differential equations
superconducting magnet
Superconducting magnets
Vehicles
Velocity
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Summary:The Hyperloop has been developed using various technologies to reach a maximum speed of 1200 km/h. Such technologies include magnetic levitation technologies that are suitable for subsonic driving. In the Hyperloop, the null-flux electrodynamic suspension (EDS) system and superconducting magnets (SCMs) can perform stable levitation without control during high-speed driving. Although an EDS device can be accurately analyzed using numerical analysis methods, such as the 3D finite element method (FEM) or dynamic circuitry theory, its 3D configurations make it difficult to use in various design analyses. This paper presents a new design model that fast analyzes and compares many designs of null-flux EDS devices for the Hyperloop system. For a fast and effective evaluation of various levitation coil shapes and arrangements, the computational process of the induced electromotive force and the coupling effect were simplified using a 2D rectangular coil loop, and the induced current and force equations were written as closed-form solutions using the Fourier analysis. Also, levitation coils were designed, and their characteristics were analyzed and compared with each other. To validate the proposed model, the analyzed force responses for various driving conditions and the changed performance trend by design variables were compared with analyzed FEM results.
ISSN:1996-1073
1996-1073
DOI:10.3390/en13195075