... A coupled 3D finite element model is proposed, combining electromagnetic and transient thermal analyses to account for eddy-current losses, temperature rise and torque reduction. The model includes full geometry and armature reaction effects. A prototype is designed and experimentally tested to validate...

...Matteo Emiliani; Luca Di Rienzo; Shingo Hiruma; Isacco Figoni; Carlo de Falco; Tetsuji Matsuo Purpose This study aims to extract a reduced order model based on the Cauer ladder network ( CLN ) method from a partial element equivalent circuit ( PEEC ) formulation of the eddy current problem...

... the agreement of the results, as well as the savings in computation time and performance. Corresponding author Tamas Bakondi bakondi.tamas@edu.bme.hu 10 01 2025 02 07 2025 07 07 2025 In this paper, we present a general 2D modeling approach to simulate the eddy current phenomena...

...Valentin Hanser; Markus Schöbinger; Karl Hollaus Purpose This study aims to introduce an effective material to efficiently and accurately solve the eddy current problem in laminated iron cores considering circuit coupling. Design/methodology/approach In the first step, a representative cell...

... element method for a metallic beam tube under the assumption that the thickness is small compared to the skin depth of the eddy currents. This has been refined in Taha et al. (2023) using a formulation based on the Darwin model. A common approach is to collapse the shield by replacing...

... Thermal network Eddy currents Permanent magnets Three-dimensional model Extremity effects Method of images Several industrial applications nowadays use the principle of induction heating, such as heat treatment, forming process and soldering (Chen et al., 2024). Based on Lenz’s law...

... at: bojana.petkovic@tu-ilmenau.de 27 10 2023 28 02 2024 10 05 2024 © Emerald Publishing Limited 2024 Emerald Publishing Limited Licensed re-use rights only The Lorentz force acting on a moving conductor [ equation (3) ] can be split into two parts: Eddy currents Magnetic dipole...

...Mohammed Messadi; Larbi Hadjout; Noureddine Takorabet Purpose This paper aims to develop a new 3D analytical model in cylindrical coordinates to study radial flux eddy current couplers (RFECC) while considering the magnetic edge and 3D curvature effects, and the field reaction due to the induced...

...Stjepan Frljić; Bojan Trkulja; Ana Drandić Purpose The purpose of this paper is to present a methodology for calculating eddy current losses in the core of a single-phase power voltage transformer, which, unlike a standard power transformer, has an open-type core (I-type core). In those apparatus...

... Transient model Eddy current fields Electromagnetic repulsive mechanism Numerical analysis Eddy currents Transient analysis Power transmission systems Computational electromagnetics Field circuit models This study was funded by the Key R&D Program of Hubei Province, China 2020BAB108...

... of the induction current with the EMF denoted by E₀ is the ratio of E₀ to the equivalent impedance of the levitated coil, which is R + jωL, whose impedance angle is as follows: (1) α = arctan ( ω L R ) Eddy currents...

... implies a reduced leakage flux in the MFT. Transformers Thermal design Iron losses Eddy currents Soft magnetic materials Thermal analysis The compactness of solid-state transformer (SST) cells and the possibility to split high power SSTs in several compact cells is a major advantage...

...Valentin Hanser; Markus Schöbinger; Karl Hollaus Purpose This work introduces an efficient and accurate technique to solve the eddy current problem in laminated iron cores considering vector hysteresis. Design/methodology/approach The mixed multiscale finite element method based on the based...

.../approach The industrial inductor is simulated with the CLN method for different meshes. Meshes considering skin effect are compared with equidistant meshes. The inductor is also simulated with the eddy current finite element method (ECFEM) for frequencies 1 kHz to 1 MHz. The solution of the CLN method...

... system of differential algebraic equations is reformulated into a system of ordinary differential equations (ODE). The ODE system is integrated in time by using explicit time integration schemes. The purpose of this paper is to investigate explicit time integration for eddy current problems with respect...

... order reduction Eddy currents Magnetic saturation The coupled analysis of an electric machine and its control circuit requires efficient computation of the electromagnetic field. In recent years, several model order reduction (MOR) methods have been developed to provide reduced systems...

... input variation for a given stirrer geometry. The present analysis is valid for rectangular slabs and billet of any size and aspect ratio. In future, this study can be extended to polygonal shape with any number of sides. Eddy currents Applied electromagnetism Finite element analysis Linear...

... of eddy currents in the conductive parts of the rotor. The analysis includes their characterization and the setup of a numerical model using finite element method. The adopted methodology is based on the separation of the losses which allows a better understanding of the physical phenomena. Each type...

...Mohammed Messadi; Larbi Hadjout; Youcef Ouazir; Hakim Bensaidane; Noureddine Takorabet; Thierry Lubin; Smail Mezani Purpose This paper aims to propose a new 3D electromagnetic model to compute translational motion eddy current in the conducting plate of a novel linear permanent magnet (PM...

...^–3K^-1 First, the electromagnetic problem considered in this study is formulated in 2D with magnetic vector potential A→. The electromagnetic behavior of the system is governed by the following equation: Eddy currents Thermal analysis Permanent magnet...