Multiple traveling wave electromagnetic rotating power supplies: FEM field modeling

Autor:	M.D. Driga, K.T. Hsieh
Rok vydání:	1993
Předmět:	Electromagnetic field Physics Field (physics) Harmonics Induction generator Mechanics Transient (oscillation) Electrical and Electronic Engineering Finite element method Electronic Optical and Magnetic Materials Magnetic field Electromagnetic pulse
Zdroj:	IEEE Transactions on Magnetics. 29:997-1002
ISSN:	1941-0069 0018-9464
DOI:	10.1109/20.195715
Popis:	Heteropolar electromechanical structures show strong promise as rotating power supplies for electromagnetic launchers with kinetic energy storage and transient magnetic energy storage that can achieve high power densities and small volumes. Both synchronous and asynchronous variants are based on multiple traveling waves of high-amplitude magnetic fields that have multiple velocities. The authors present a finite element formulation of the diffusion problem for time-harmonic excitation with several different frequencies. In this formulation, phasorial quantities are used and a complex-variable functional treatment is set down to correspond to the electromagnetic partial differential equations. The treatment is applicable to the self-excitation process in fast transient regimes of pulsed discharge of an asynchronous generator in which the nonuniformity (spatial and temporal) of the traveling waves plays an important role. Results are presented for a sample problem. >
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::282ba59769322b3251fb1f2078b8c73c https://doi.org/10.1109/20.195715 Zobrazit plný text záznamu