Search Results - "Preis, Kurt"

Finite Element Analysis of Three-Phase Three-Limb Power Transformers Under DC Bias by Biro, Oszkar, Koczka, Gergely, Leber, Gerald, Preis, Kurt, Wagner, Bernhard

“…A finite element method for the analysis of three-phase, three-limb power transformers under dc bias is presented. The phase voltages and the dc components of…”
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Transient Behavior of Large Transformer Windings Taking Capacitances and Eddy Currents Into Account by Preis, Kurt, Renhart, Werner, Rabel, Alexander, Biro, Oszkar

“…Transformer windings, as resonant systems, respond to impulse excitation by oscillating voltages and currents. In this paper, a detailed transient circuit…”
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Firefly Algorithm for Finding Optimal Shapes of Electromagnetic Devices by Alb, Michael, Alotto, Piergiorgio, Magele, Christian, Renhart, Werner, Preis, Kurt, Trapp, Bernhard

“…Many real-world optimization problems have to be treated as multi-objective optimization problems. An approach, well established in recent years, is to find…”
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Interactive Toolbox for the Visualization of Typical Antenna Attributes by Baumgartner, Paul, Bauernfeind, Thomas, Preis, Kurt, Biro, Oszkar

“…To understand wave propagation phenomena, complex mathematical and physical theory is needed. Therefore, many undergraduate students find it very difficult to…”
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Finite element solution of nonlinear eddy current problems with periodic excitation and its industrial applications by Bíró, Oszkár, Koczka, Gergely, Preis, Kurt

“…An efficient finite element method to take account of the nonlinearity of the magnetic materials when analyzing three-dimensional eddy current problems is…”
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PEEC-Based Multi-Objective Synthesis of Non-Uniformly Spaced Linear Antenna Arrays by Bauernfeind, Thomas, Baumgartner, Paul, Biro, Oszkar, Magele, Christian A., Preis, Kurt, Torchio, Riccardo

“…Linear antenna arrays consisting of dipole antennas find wide applications in wireless communication systems. Typically, arrangements with uniform spacing…”
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Finite Element Simulation of Impedance Measurement Effects of NFC Antennas by Bauernfeind, Thomas, Preis, Kurt, Renhart, Werner, Biro, Oszkar, Gebhart, Michael

“…In this paper, the problem of connecting the unbalanced measurement setup on the balanced antenna of the near-field communication (NFC) system is addressed…”
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Fast Time-Domain Finite Element Analysis of 3-D Nonlinear Time-Periodic Eddy Current Problems With T, Φ-Φ Formulation by BIRO, Oszkár, KOCZKA, Gergely, PREIS, Kurt

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Fast Time-Domain Finite Element Analysis of 3-D Nonlinear Time-Periodic Eddy Current Problems With [Formula Omitted] Formulation by Biro, Oszkár, Koczka, Gergely, Preis, Kurt

“…A method is presented for obtaining the steady-state solution of three-dimensional eddy current problems with nonlinear material properties and periodic…”
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Fast Time-Domain Finite Element Analysis of 3-D Nonlinear Time-Periodic Eddy Current Problems With ,\Phi-\Phi Formulation by Biro, Oszkár, Koczka, Gergely, Preis, Kurt

“…A method is presented for obtaining the steady-state solution of three-dimensional eddy current problems with nonlinear material properties and periodic…”
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Inrush current computations using an optimised analytical hysteresis model by Renhart, Werner, Bíró, Oszkár, Magele, Christian, Preis, Kurt, Rabel, Alexander

“…Purpose The purpose of this paper is the modelling and estimation of inrush currents while energising power devices under no load conditions. An analytical…”
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Influence of the Non-Linear UHF-RFID IC Impedance on the Backscatter Abilities of a T-Match Tag Antenna Design by Bauernfeind, Thomas, Preis, Kurt, Koczka, Gergely, Maier, Stefan, Biro, Oszkar

“…In ultra-high-frequency radio-frequency-identification (UHF-RFID) the conjugate complex matching of the packaged UHF-RFID transponder IC and the tag antenna…”
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An Efficient Harmonic Balance Method for Nonlinear Eddy-Current Problems by Ausserhofer, S., Biro, O., Preis, K.

“…A method is presented which determines the steady-state solution of nonlinear eddy current problems. The unknown potentials are represented by Fourier-series…”
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An efficient time domain method for nonlinear periodic eddy current problems by Biro, O., Preis, K.

“…A time-domain method is presented yielding the periodic steady-state solution of nonlinear eddy current problems without having to step through the transient…”
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An Iterative Domain Decomposition Method for Solving Wave Propagation Problems by Koczka, Gergely, Bauernfeind, Thomas, Preis, Kurt, Bíró, Oszkár

“…Solving electromagnetic wave propagation problems with the finite-element method results in a large number of unknowns due to the necessity of modeling an…”
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Optimal Convergence of the Fixed-Point Method for Nonlinear Eddy Current Problems by Koczka, G., Auberhofer, S., Biro, O., Preis, K.

“…A method is presented for the optimal choice of the fixed-point reluctivity in nonlinear eddy current problems solved for steady-state in the frequency and the…”
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Investigation of UHF Circular Loop Antennas for RFID by Preis, Kurt, Bauernfeind, Thomas, Biro, Oszkár, Koczka, Gergely, Ticar, Igor

“…In radio frequency identification (RFID), the design and investigation of ultra-high-frequency (UHF) circular loop antennas used as reader antennas as well as…”
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Discontinuous Galerkin Finite Elements in Time Domain Eddy-Current Problems by Ausserhofer, S., Biro, O., Preis, K.

“…A discontinuous Galerkin finite element approach is presented to solve eddy-current problems in the time domain based on a magnetic vector potential…”
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Thermal-electromagnetic coupling in the finite-element simulation of power transformers by Preis, K., Biro, O., Buchgraber, G., Ticar, I.

“…A finite element method is presented to compute the electromagnetic field and hence the temperature rise in complex three-dimensional structures such as power…”
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Prediction of Magnetizing Current Wave-Forms in a Three-Phase Power Transformer Under DC Bias by Biro, O., Buchgraber, G., Leber, G., Preis, K.

“…A procedure based on the finite element method (FEM) is presented to determine the strongly distorted wave-forms of the magnetizing currents having given…”
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