Results 251 to 260 of about 3,098,425 (289)

Equivalent circuit of signal line with magnetic layer

Journal of Applied Physics, 1987
A system of conductors having arbitrary permeability is analyzed through the generation of an inductance matrix that includes magnetic effects. This formulation, which makes use of both a magnetic scalar potential and preexisting inductance calculation algorithms based on vector potential, directly generates an equivalent circuit suitable for ...
Barry J. Rubin, Gerard V. Kopcsay
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Magnetic Equivalent Circuit applied to a unipolar PMSM

The XIX International Conference on Electrical Machines - ICEM 2010, 2010
Design and development of electrical machines require a good accuracy model with a low time process. Compared to finite element analysis and analytical model magnetic Equivalent Circuit (MEC) presents compromise between time process and accuracy. This paper presents two MEC method used to modeling a unipolar permanent magnet synchronous machine (PMSM) (
B. Nedjar, S. Hlioui, L. Vido, M. Gabsi, Y. Amara, A. Miraoui   +5 more
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Magnetic equivalent circuits for electrical machines

Proceedings of the Institution of Electrical Engineers, 1967
The concept of an equivalent magnetic circuit, analogous to an equivalent electric circuit, in which flux replaces current, m.m.f. replaces e.m.f. and reluctance replaces resistance, is well known and widely used, but the technique is generally restricted to the equivalent of d.c. electric circuits.
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Magnetic equivalent circuit modelling of Reluctance Machines

2016 Eleventh International Conference on Ecological Vehicles and Renewable Energies (EVER), 2016
This paper is devoted to the fast modelling of Switched Reluctance Machines (SRMs) and Synchronous Reluctance Machines (SynRMs) by Magnetic Equivalent Circuit (MEC) approach. For SRMs, a combined MEC-FE model is presented. A table of reluctance as function of flux and rotor position is obtained from a reduced FE model which contains a part of the ...
Peng, Wei, Gyselinck, Johan, Dziechciarz, Arkadiusz, Martis, Claudia   +3 more
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Extended 2D magnetic equivalent circuit method

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2010
PurposeThe purpose of this paper is to devise a magnetic field modelling approach suitable for simulating the transient behaviour of a class of electromagnetic systems (particularly linear synchronous motors).Design/methodology/approachThe classical 2D magnetic equivalent circuit (MEC) approach is extended by separately accounting for leakage flux from
Christopher R. Lines, Willem A. Cronjé, Brian Wigdorowitz   +2 more
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The derived equivalent circuit model for non-magnetized and magnetized graphene

2016 IEEE/ACES International Conference on Wireless Information Technology and Systems (ICWITS) and Applied Computational Electromagnetics (ACES), 2016
In this work, for the first time the electromagnetic features of graphene are characterized by a circuit model derived instead of fitted from the electric field integral equation (EFIE). The atomically thick graphene is equivalently replaced by an impedance surface. When it is magnetized, the impedance surface is anisotropic with a tensor conductivity.
Cao, YS, Jiang, L, Ruehli, AE
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MAGNETIC EQUIVALENT CIRCUIT PRESENTATION OF ELECTRIC MACHINES

Electric Machines & Power Systems, 1987
Abstract The fundamentals of the magnetic equivalent circuit concept are described. This principle is illustrated by several examples. The position of the method in modem theory and design of electric machines is defined and discussed.
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Equivalent circuit for coil-patient interactions in magnetic resonance imaging

Magnetic Resonance Imaging, 1987
An equivalent circuit is presented which accurately models the performance of magnetic resonance imaging receiver coils used with conducting samples. Coil-sample interaction is determined by measuring either the complex impedance or the associated resonant frequency and quality factor when samples of different conductivity are placed in the coil.
J G, van Heteren, R M, Henkelman, M J, Bronskill   +2 more
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Equivalent Circuit of AC Magnetic Fields

2019
An effective equivalent circuit method suitable for high-frequency usage is explained in this chapter. This equivalent circuit is based on the ladder network originally proposed by Wilhelm Cauer (1900–1945) in the field of network synthesis. This method enables significant reduction of computations and also enables coupled analysis of magnetic field ...
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A magnetic equivalent circuit based performance computation of a Lundell alternator

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242), 1999
A claw pole synchronous generator, or Lundell alternator, is the main source of electric energy in today's internal combustion engine automobile. Having in mind that as consumer power onboard a vehicle steadily increases, the importance of creating an accurate computational tool for Lundell alternator analysis and potential gains on output, efficiency ...
V. Ostovic, J.M. Miller, V.K. Garg, R.D. Schultz, S.H. Swales   +4 more
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