Structure Preserving Model Reduction of Low-Frequency Electromagnetic Problem Based on POD and DEIM
Article dans une revue avec comité de lecture
Auteur
MONTIER, LaurentPIERQUIN, AntoineHENNERON, Thomas 
CLENET, StephaneRésumé
The Proper Orthogonal Decomposition (POD) combined with the (Discrete) Empirical Interpolation Method (DEIM) can be used to reduce the computation time of the solution of a Finite Element (FE) model. However, it can lead to numerical instabilities. To increase the robustness, the POD_DEIM model must be constructed by preserving the structure of the full FE model. In this article, the structure preserving is applied for different potential formulations used to solve electromagnetic problems.
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Article dans une revue avec comité de lecture; ; ;CLENET, Stephane (Institute of Electrical and Electronics Engineers, 2017)
Proper Orthogonal Decomposition (POD) has been successfully used to reduce the size of linear Finite Element (FE) problems, and thus the computational time associated with. When considering a nonlinear behavior law of the ...
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Structure Preserving Model Reduction of Low Frequency Electromagnetic Problem based on POD and DEIM Article dans une revue avec comité de lecture; ; ;CLENET, Stephane (Institute of Electrical and Electronics Engineers, 2017)
The Proper Orthogonal Decomposition (POD) combined with the (Discrete) Empirical Interpolation Method (DEIM) can be used to reduce the computation time of the solution of a Finite Element (FE) model. However, it can lead ...
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Article dans une revue avec comité de lecture; ; ;CLENET, Stephane (Institute of Electrical and Electronics Engineers, 2016)
To study a multirate system, each subsystem can be solved by a dedicated sofware with respect to the physical problem and the time constant. Then, the problem is the coupling of the solutions of the subsystems. The Waveform ...
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Article dans une revue avec comité de lecture; ; ;CLENET, Stephane (Institute of Electrical and Electronics Engineers, 2014)
We present an optimization problem that requires to model a multirate system, composed of subsystems with different time constants. We use waveform relaxation method in order to simulate such a system. But computation time ...
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Model-Order Reduction of Magnetoquasi-Static Problems Based on POD and Arnoldi-Based Krylov Methods Communication avec acte; ; ;CLENET, Stephane (IEEE, 2015)
The proper orthogonal decomposition method and Arnoldi-based Krylov projection method are investigated in order to reduce a finite-element model of a quasi-static problem. Both methods are compared on an academic example ...