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281 results on '"Vollaire, Christian"'

4. Analytical and numerical models compared with measurements for analysis of electromagnetic radiation through apertures of a metallic enclosure

Author

Azizi Hakim, Chebout Mohammed, Moulai Hocine, Bréard Arnaud, and Vollaire Christian

Subjects
shielding effectiveness, enclosures, apertures, normal incident, oblique incident, Electrical engineering. Electronics. Nuclear engineering, TK1-9971
Abstract

Generally, most of the electronic equipments need a metallic enclosure in order to mechanically protect and electrically shield the interior printed circuit boards (PCBs) and subsystems. But in practical situations, the apertures or slots of various forms are essential parts of the shielding enclosure for thermal dissipation, CD-ROMs, connectors, I/O cabling and so on. The performance of shielding enclosures for high-speed digital systems is compromised by these inevitable discontinuities on enclosure. To minimize the electromagnetic interferences and susceptibility risks by these discontinuities, the shielding enclosures with apertures should be designed based on thorough analysis about the electromagnetic coupling mechanism through apertures. In this paper, the effect of apertures and oblique incident plane wave on shielding effectiveness of the enclosure is studied with the Circuital Approach, and the Finite-Difference Time-Domain (FDTD) method, the simulated SE data are verified by experimental technique. Good agreements are found between these approaches.

Published
2020
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9. Parallel computing for the finite element method

Author

Vollaire, Christian, Nicolas, Laurent, and Nicolas, Alain

Subjects
Computer Science - Distributed, Parallel, and Cluster Computing
Abstract

A finite element method is presented to compute time harmonic microwave fields in three dimensional configurations. Nodal-based finite elements have been coupled with an absorbing boundary condition to solve open boundary problems. This paper describes how the modeling of large devices has been made possible using parallel computation, New algorithms are then proposed to implement this formulation on a cluster of workstations (10 DEC ALPHA 300X) and on a CRAY C98. Analysis of the computation efficiency is performed using simple problems. The electromagnetic scattering of a plane wave by a perfect electric conducting airplane is finally given as example.

Published
2007
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10. Bioelectricity production of PMFC using Lobelia Queen Cardinalis in individual and shared soil configurations

Author

Bataillou Grégory, Haddour Naoufel, and Vollaire Christian

Subjects
Environmental sciences, GE1-350
Abstract

Plant Microbial Fuel Cell (PMFC) creates electricity from oxidation of root exudates by microbia anaerobic digestion, and reduction of dioxygen to water. In this study, Lobelia Queen Cardinalis was used as a plant model to investigate the impact of ionic connection between stacked Plant microbial fuel cell (shared soil). 10mm thickness carbon felt woven with stainless steel wire was used for both anode and cathode, and soil was a mix of potting soil and ground from pond banks (30\%-70\% weight, respectively). Independent performances did not show any difference between individual and shared soil PMFCs. Stacking independent PMFC in series sums both open circuit potential (OCP) and internal resistance, while stacking in parallel sums current, keeping open circuit potential to the mean of the OCPs. Although series stacking seems to output best performances, this configuration may cause voltage reversal in one PMFC when current is strong, leading to biofilm damage, so stacking in parallel is recommended.

Published
2022
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14. Circuit Model for Fast Computational Analysis of RWPT Applications

Author

Freitas, Felipe M., Soares, Icaro, Vollaire, Christian, Bréard, Arnaud, Krähenbühl, Laurent, Goncalves, Sandro T. M., Resende, Ursula C., Centro Federal de Educação Tecnológica de Minas Gerais (CEFET-MG), Institut d'Électronique et des Technologies du numéRique (IETR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Ampère, Département Energie Electrique (EE), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Ampère, Département Automatique pour l'Ingénierie des Systèmes (AIS), FAPEMIG, CAPES, CNPq, and CEFETMG and Laboratoire Ampere -CNRS [UMR 5005]

Subjects
[SPI]Engineering Sciences [physics], Printed coil, RWPT, Neumann formulation, resonant wireless power transfer
Abstract

International audience; This work proposes a circuit model to calculate the current along printed coils used in resonant wireless power transmission systems. The proposed formulation is based on the Neumann formula for calculating the mutual inductance between coils, and due to the generality of this approach, it can be applied to more complex structures such as metasurfaces. Finally, this formulation is used to calculate the scattering parameters of the entire system, making it possible to evaluate its wireless power transfer efficiency. The results obtained agree with the general behavior obtained from electromagnetic simulations in commercial software, with a low error and a reduction in computational time of almost three orders of magnitude.

Published
2022

23. Study of Discharge Inception and Propagation in Liquid–Solid Insulation System under DC–LI Superimposed Constraints.

Author

Moufakkir, Younes, Zouaghi, Ayyoub, and Vollaire, Christian

Subjects
SURFACE charges, PARTIAL discharges, SPACE charge, RENEWABLE energy sources, ELECTRIC fields, SOLID-liquid interfaces, POWER resources, SURFACE charging
Abstract

High-voltage direct current (HVDC) links are starting to become widely implemented thanks to their interesting advantages such as reduced operation losses, the absence of reactive power, which allows energy transport via underground cables over long distances, and improved power control. The latter advantage is very essential for renewable energy resource integration into power grids. However, a thorough understanding of the behavior of insulation systems for HVDC components is critical so as to ensure a more reliable service. Indeed, the existence of the direct current (DC) voltage in HVDC components may induce surface and space charge accumulation that can stress insulation further or even promote discharge inception and propagation. As such, this work focuses on showcasing the effect of surface charge on streamers that develop on the interface of liquid–solid insulation due to the advent of lightning impulse (LI) voltage in the HVDC link. This study was performed using finite-element-based numerical simulations that include a quasi-electrostatic model for surface charge accumulation and an electrohydrodynamic fluid model for streamer initiation and propagation. The geometry used was point–plane configuration where the high voltage is applied to the needle electrode located above the liquid–solid interface. The obtained results suggest that streamer initiation is affected by both the accumulated surface charge density and polarity. For a positive streamer, an accumulation of positive surface charge increases the discharge inception voltage as a result of a weakening in the electric field, while an accumulation of negative surface charge decreases the discharge inception voltage due to an intensification in the electric field. Moreover, streamer travel distance and velocity are also both shown to be affected by surface charge accumulation. [ABSTRACT FROM AUTHOR]

Published
2023
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25. A new platform for culture and electroporation of 3D cell constructs based on a porous scaffold

Author

Bregigeon, Pauline, Frénéa-Robin, Marie, Marchalot, Julien, Franqueville, Laure, Vollaire, Christian, Riviere, Charlotte, and FRENEA-ROBIN, Marie

Subjects
[SDV] Life Sciences [q-bio], Hydrogel, Electroporation, [SPI] Engineering Sciences [physics], Spheroids
Abstract

Electroporation (EPN) is a method for introducing molecules into cells based on the application of pulsed electric fields. It opens new perspectives for cancer treatment by electrochemotherapy and electro-gene therapy. The study of EPN effects on in vitro 3D tumor models could benefit from the development of new tools providing easiness of use, high throughput and results reproducibility.In the literature, the proposed approaches consist in fabricating the spheroids using droplet-based microfluidics1 or hanging drop methods2 and then introduce them in an electroporation cuvette connected to a pulse generator. Thus, it involves several handling steps, which can potentially damage spheroids.We present a new platform enabling culture of spheroids of similar size and shape, easy introduction of fluid and subsequent electroporation inside a unique device integrating a porous hydrogel scaffold.

Published
2021

26. Study of electrochemotherapy effect in cell spheroids using a microfluidic device based on glass technology

Author

Bregigeon, Pauline, Marchalot, Julien, Franqueville, Laure, Vollaire, Christian, Frénéa-Robin, Marie, Riviere, Charlotte, and FRENEA-ROBIN, Marie

Subjects
[SDV] Life Sciences [q-bio], Electroporation, Hydrogel Scaffold, Glass Technology, [SPI] Engineering Sciences [physics], Electrochemotherapy, Cell Spheroids
Abstract

Electroporation (EPN) is a technique using pulsed electric fields to permeabilize and introduce molecules into cells without permanent damage. To assess the potential of cancer treatments based on EPN, like electrochemo- therapy (ECT), innovative in vitro assays exploiting 3D cell models such as spheroids are needed. The parallel treatment of tens of spheroids is required to produce statistical data. We designed a microfluidic device including a structured hydrogel placed between two conductive glass slides, enabling culture and electroporation of a large number of spheroids sharing similar characteristics. Here, we demonstrate its use to assess the effect of ECT on spheroids.

Published
2021

27. Common-mode emissions measurements and simulation in variable-speed drive systems

Author

Jettanasen, Chaiyan, Costa, Francois, and Vollaire, Christian

Subjects
Electromagnetic interference -- Research, Electric inverters -- Research, Electric driving, Variable speed -- Research, Variable speed drives -- Research, Electromagnetic noise -- Research, Business, Electronics, Electronics and electrical industries
Published
2009

28. Characterization of inclusions in a nonhomogeneous GPR problem by artificial neural networks

Author

Travassos, X. Lucas, Jr., Vieira, D.A.G., Ida, Nathan, Vollaire, Christian, and Nicolas, Alain

Subjects
Ground penetrating radar -- Research, Neural networks -- Analysis, Neural network, Business, Electronics, Electronics and electrical industries
Abstract

This paper aims at detecting and characterizing inclusions in concrete structures by inverting ground-penetrating radar (GPR) data. First, the signal is preprocessed using the principal component analysis (PCA) and then used to train an artificial neural network (ANN). The GPR data consists of 1200 time steps. Using PCA, the data can be compressed to 286 dimensions without losing any information. Moreover, with 99.99% of the original variance the data needs only 139 dimensions. This dimensional reduction makes the ANN training easier and faster. The ANN were trained to find the buried inclusions characteristics--depth and radii--considering a nonhomogenous host medium by inverting the preprocessed data. The results show that the expected maximum error was kept under 1%, which is a remarkable result, since the host medium is nonhomogenous. Index Terms--Artificial neural network (ANN), buried objects, ground-penetrating radar (GPR), inverse problem.

Published
2008

29. Inverse algorithms for the GPR assessment of concrete structures

Author

Travassos, X. Lucas, Jr., Vieira, D.A.G., Ida, Nathan, Vollaire, Christian, and Nicolas, Alain

Subjects
Concrete -- Magnetic properties, Finite element method -- Usage, Business, Electronics, Electronics and electrical industries
Abstract

This paper investigates the characterization of inclusions in concrete structures, including the number of inclusions, their geometries, and electromagnetic properties. To solve this problem, a two phase algorithm that combines matched-filter-based reverse-time (MFBRT) migration algorithm with the particle swarm optimization (PSO) is employed. The first phase runs the MFBRT that can, robustly, define the number of inclusions and their centers; however, it cannot define the inclusion geometry and electromagnetic properties. Given the results obtained in the first phase, the PSO is launched in the second phase, in a parametric approach, to define the radii of the inclusions and their properties. Three types of inclusions were considered, water, air, and conductor. Results considering a nonhomogenous host medium having from one to three inclusions are presented showing the effectiveness of the proposed approach. Index Terms--Finite-difference time domain (FDTD), inverse scattering, migration algorithms, particle swarm optimization.

Published
2008

30. Experimental study of the self-disturbance phenomena in a half-bridge configuration of Si IGBT and SiC MOSFET switches

Author

Geramirad, Hadiseh, Morel, Florent, Lefebvre, Bruno, Vollaire, Christian, Bréard, Arnaud, BREARD, Arnaud, SuperGrid Institute SAS, Ampère, Département Méthodes pour l'Ingénierie des Systèmes (MIS), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL), and Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)

Subjects
[SPI]Engineering Sciences [physics], Hardware_GENERAL, [SPI] Engineering Sciences [physics], [SPI.NRJ]Engineering Sciences [physics]/Electric power, Hardware_INTEGRATEDCIRCUITS, Hardware_PERFORMANCEANDRELIABILITY, [SPI.TRON] Engineering Sciences [physics]/Electronics, [SPI.TRON]Engineering Sciences [physics]/Electronics, [SPI.NRJ] Engineering Sciences [physics]/Electric power
Abstract

International audience; This paper investigates the gate-driver design challenges encountered due to the fast switching of wide band-gap semiconductors (here, SiC MOSFETs) in the half-bridge configuration. It discusses precisely the common-mode current generated by fast switching passing through gate-driver, which leads to driving-voltage perturbations and disturbs the correct triggering of switches. This phenomenon is described here as self-disturbance and the experimental study shows that it is exacerbated with SiC MOSFETs, when compared with Si IGBTs. The solution proposed in this article is to block the generated noise linked to self-disturbance phenomenon by placing a common-mode choke into the gate path. The proposed solution is compared with the classical active Miller-clamp protection solution. The experimental results from 1.7kV, 300A SiC MOSFET validate the solution. The solution proposed in this work allows to keep the MOSFET gate-voltage perturbation lower than the MOSFET threshold voltage while it does not increase the switching losses. Experimental results show that by implementing the proposed solution, it is possible to reduce the input common-mode current through the gate driver by up to 20%.

Published
2020

31. Electromagnetic Shielding Performance of a Metallic Enclosure with Apertures

Author

Azizi, Hakim, Chebout, Mohammed, Moulai, Hocine, Bréard, Arnaud, Vollaire, Christian, Université des Sciences et de la Technologie Houari Boumediene [Alger] (USTHB), Ampère, Département Méthodes pour l'Ingénierie des Systèmes (MIS), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and BREARD, Arnaud

Subjects
circuit model, [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, enclosure, shielding effectiveness, Physics::Instrumentation and Detectors, [SPI.ELEC] Engineering Sciences [physics]/Electromagnetism, FDTD, apertures, Physics::Chemical Physics
Abstract

International audience; Generally, most of the electronic equipment need a metallic enclosure in order to mechanically protect and electrically shield the interior printed circuit boards (PCBs) and subsystems. But in practical situations, the apertures or slots of various forms are essential parts of the shielding enclosure for thermal dissipation, CD-ROMs, connectors, I/O cabling and so on. The performance of shielding enclosures for high-speed digital systems is compromised by these inevitable discontinuities on enclosure. To minimize the electromagnetic interferences and susceptibility risks by these discontinuities, the shielding enclosures with apertures should be designed based on thorough analysis about the electromagnetic coupling mechanism through apertures. In this paper, the effect of apertures and oblique incident plane wave on shielding effectiveness of the enclosure is studied with the Circuital Approach, and the Finite-Difference Time-Domain method, the simulated SE data are verified by experimental technique. Good agreements are found between these approaches.

Published
2020

32. Post processing for the vector finite element method: accurate computing of dual field

Author

Vollaire, Christian, Musy, Francois, and Perrussel, Ronan

Subjects
Finite element method -- Usage, Harmonic functions -- Analysis, Vector graphics -- Electric properties, Vector graphics -- Magnetic properties, Business, Electronics, Electronics and electrical industries
Abstract

An accurate method to compute dual field in high frequency time harmonic problem is presented. From a primal field obtained by a vector finite element discretization, the dual field is obtained without numerical derivation by using a least square argument. The accuracy of the method is compared with the natural method using shape function derivatives. Index Terms--Edge elements, finite element method, post-processing.

Published
2006

34. Modeling of conducted common mode perturbations in variable-speed drive systems

Author

Costa, Francois, Vollaire, Christian, and Meuret, Regis

Subjects
Electric driving, Variable speed -- Observations, Electric driving, Variable speed -- Models, Variable speed drives -- Observations, Variable speed drives -- Models, Perturbation (Mathematics) -- Analysis, Business, Computers, Electronics, Electronics and electrical industries
Abstract

In this paper, common mode (CM) conducted perturbations are predicted and compared with experiments in a variable-speed drive system, thanks to a mixed approach based on experimental measurements and on the modeling of the complete CM circuit. Its different parts are considered and represented by a chain of quadripolar matrices: the inverter, the cables, and the induction motor. At last, it is shown that the parasitic currents in the system can be calculated in the different stages of the matrix chain. Experiments have successfully confirmed this approach. Index Terms--Conducted perturbations, quadripolar matrices modeling, variable-speed drive.

Published
2005

35. Performance of preconditioners for the distributed vector finite-element time-domain algorithm

Author

Nicolas, Alain, Nicolas, Laurent, Vollaire, Christian, and Butrylo, Boguslaw

Subjects
Finite element method -- Research, Electromagnetism -- Research, Algorithms -- Research, Algorithm, Business, Electronics, Electronics and electrical industries
Abstract

This paper deals with some aspects of performance of the symmetric successive over-relaxation preconditioner in a distributed environment. The details of distributed formulation of the preconditioner are presented. Some performance metrics are compared and discussed for the message passing interface implementation of the algorithm. The properties of the solver are estimated for concurrent three-dimensional formulation of the finite-element time-domain method. The analyzed benchmark models are approximated by tetrahedral first order Whitney elements. Index Terms--Edge elements, finite-element (FE) method, iterative solver, parallel numerical algorithms, time-domain algorithm.

Published
2005

36. Adaptive time-stepping analysis of nonlinear microwave heating problems

Author

Rabello, Anderson Arhtur, Silva, Elson Jose, Saldanha, Rodney Rezende, Vollaire, Christian, and Nicolas, Alain

Subjects
Dielectrics -- Research, Finite element method -- Research, Electromagnetism -- Research, Business, Electronics, Electronics and electrical industries
Abstract

This paper presents a three-dimensional computational model for nonlinear microwave heating problems. In order to reduce the computational costs, a new finite element method adaptive time-stepping scheme is proposed. Numerical results are compared with experimental measurements on a problem of dielectric heating of water. Index Terms--Adaptive time-stepping, finite element method (FEM), microwave heating, nonlinear dielectric properties.

Published
2005

37. Stability and fidelity of the finite element time domain method with distorted mesh

Author

Butrylo, Boguslaw, Vollaire, Christian, and Nicolas, Laurent

Subjects
Electromagnetism -- Research, Business, Electronics, Electronics and electrical industries
Abstract

Properties of the three-dimensional formulation of the finite element time domain algorithm for the wave equation are analyzed. First-order edge elements are implemented in the formulation. Several issues associated with deformation of the structured mesh and efficiency of the time integration scheme are presented. The convergence and stability of the time domain algorithm depending on the spatial discretization are discussed. The numerical accuracy of the simulation is studied. Index Terms--Edge elements, finite element method, stability, time domain analysis.

Published
2004

38. Optimization of 3-D SAR distribution in local RF hyperthermia

Author

Siauve, Nicolas, Nicolas, Laurent, Vollaire, Christian, Nicolas, Alain, and Vasconselos, Joao A.

Subjects
Electromagnetism -- Research, Business, Electronics, Electronics and electrical industries
Abstract

A procedure to optimize the specific absorption rate deposed in the patient during oncology hyperthermia treatment is presented. It is based on a genetic algorithm coupled to a finite-element formulation. The optimization procedure is applied to a real human body obtained from computerized tomography scans. Index Terms--Electromagnetic fields, finite-element methods, genetic algorithms, hyperthermia.

Published
2004

39. Numerical performance of the distributed vector finite-element time-domain algorithm

Author

Butrylo, Boguslaw, Vollaire, Christian, Nicolas, Laurent, and Nicolas, Alain

Subjects
Electromagnetism -- Research, Business, Electronics, Electronics and electrical industries
Abstract

This paper deals with a distributed time-domain modeling of electromagnetic phenomena with the finite-element method. The model is approximated by edge elements. The constitutive equations and method of parallelization of the algorithm are presented. The properties Of the distributed finite-element time-domain algorithm are discussed. Some typical performance metrics are studied for the parallel versions of the software. The presented algorithm is executed on a heterogeneous and a homogeneous clusters of workstations. Two different distributed memory environments (MPI and PVM) are used to evaluate the efficiency of the algorithm. Index Terms--Distributed computing, edge elements, finite-element time-domain (FETD) algorithm, high-frequency electromagnetic field.

Published
2004

40. Implementation of the boundary integral method for electromagnetic scattering problems with geometrical discontinuities

Author

Jacques, Thierry, Nicholas, Laurent, and Vollaire, Christian

Subjects
Electromagnetic waves -- Scattering, Business, Electronics, Electronics and electrical industries
Abstract

The boundary integral method is used to solve scattering by perfect electric conducting or perfect dielectric bodies. This paper deals with different aspects of the modeling: frequency domain and time domain formulations, computing, solver. Methods allowing the treatment of geometrical discontinuity for all kinds of mesh are specially discussed. Validation of the formulations is carried by comparison with other codes. Index Terms--Boundary element methods, discontinuities, numerical analysis.

Published
2002

45. Time Reversal Applied to Wireless Power Transmission

Author

Bréard, Arnaud, Huillery, Julien, Voyer, Damien, Duroc, Yvan, Vollaire, Christian, Ampère, Département Méthodes pour l'Ingénierie des Systèmes (MIS), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), École d'Ingénieurs en Génie des Systèmes Industriels [La Rochelle] (EIGSI), Ecole d'Ingénieurs en Génie des Systèmes Industriels, Ampère, Département Energie Electrique (EE), and Ampère, Publications

Subjects
[SPI.NRJ]Engineering Sciences [physics]/Electric power, ComputingMilieux_MISCELLANEOUS, [SPI.NRJ] Engineering Sciences [physics]/Electric power
Abstract

International audience

Published
2019

46. Dimensionnement d’un système de transfert d’énergie électrique par induction utilisant des métamatériaux pour amplifier le transfert de puissance et pour empêcher les flux de fuite

Author

Jodet, Côme, Thieux, Juan, Vollaire, Christian, Bréard, Arnaud, Ampère, Publications, Ampère, Département Méthodes pour l'Ingénierie des Systèmes (MIS), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Laboratoire Ampère CNRS UMR 5005, Université de Lyon, INSA - Lyon

Subjects
[SPI.NRJ]Engineering Sciences [physics]/Electric power, [SPI.NRJ] Engineering Sciences [physics]/Electric power
Published
2019

48. Impact de la configuration des capacités de découplage sur le pré filtrage des perturbations de mode différentiel

Author

Yade, Ousseynou, Martin, Christian, Bréard, Arnaud, Vollaire, Christian, Ali, M, Meuret, Régis, Ampère, Département Méthodes pour l'Ingénierie des Systèmes (MIS), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Ampère, Département Energie Electrique (EE), SAFRAN, Grp Hispano Suiza, SAFRAN Group, and Ampère, Publications

Subjects
[SPI.NRJ]Engineering Sciences [physics]/Electric power, ComputingMilieux_MISCELLANEOUS, [SPI.NRJ] Engineering Sciences [physics]/Electric power
Abstract

National audience

Published
2018

49. Modélisation du test Cem BCI sous contrainte DO160 & validation avec des mesures

Author

Diop, Mor Sokhna, Clavel, Edith, Cheaito, Hassan, Vollaire, Christian, Kedzia, J.C., Malnoult, P., Gainetdinoff, B., Mutel, L., Ambroise, A., Vialardi, Enrico, Laboratoire de Génie Electrique de Grenoble (G2ELab), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Ampère, Département Méthodes pour l'Ingénierie des Systèmes (MIS), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Esisar - Plateforme Esynov, Esisar, Cedrat, CEDRAT, and Garcia, Sylvie

Subjects
[SPI.NRJ]Engineering Sciences [physics]/Electric power, [SPI.NRJ] Engineering Sciences [physics]/Electric power
Abstract

International audience; Le test BCI (Bulk Current Injection) utilisé enCEM étant très sensible à sa mise en oeuvre et desconfigurations multiples et variées pouvant se rencontrer,le recours à la simulation devient incontournable. Lamodélisation proposée s’effectue sous PAMCEM/CRIPTE où les différents éléments (influents) dubanc de test BCI sont modélisés et validés avec desrésultats expérimentaux. Ces travaux constituent un grandapport pour les avionneurs et/ou équipementiers commeun support d’aide à la prise de décision lors de la phasede "pre-disign" des équipements destinés à êtreembarqués dans les porteurs. En effet, ils pourraientpermettre de maîtriser et concevoir au plus juste (ni trop,ni pas assez) les protections aux étages d’entrée deséquipements. En outre, ils pourraient faciliter le "re-use"d’équipement sur d’autres aéronefs en minimisant lenombre de tests à réaliser et les délais de livraison de produits.

Published
2018

50. Modélisation CEM de type boîte noire d'un onduleur triphasé

Author

Amara, Meriem, Vollaire, Christian, Ali, M., Costa, François, Costa, François, Ampère, Département Méthodes pour l'Ingénierie des Systèmes (MIS), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Safran Tech, Systèmes et Applications des Technologies de l'Information et de l'Energie (SATIE), École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-École normale supérieure - Rennes (ENS Rennes)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Université Paris-Seine-Université Paris-Seine-Conservatoire National des Arts et Métiers [CNAM] (CNAM), and HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SPI.NRJ]Engineering Sciences [physics]/Electric power, [SPI.NRJ] Engineering Sciences [physics]/Electric power
Abstract

International audience; Cet article présente une modélisation électromagnétique de type « boîte noire » d’un convertisseur de puissance DC-AC. Cet onduleur est représenté par une association de sources de perturbations électromagnétiques et d’impédances, permettant de reproduire ses caractéristiques d’émissions conduites. L’approche de modélisation présentée dans cet article requière un temps de calcul très court, ce qui permet une conception rapide et optimisée d’un filtre CEM, et une étude d’interaction entre plusieurs convertisseurs connectés sur le même réseau électrique. Ce modèle dépendant d’un point de fonctionnement donné du convertisseur, la deuxième partie de cet article est consacrée à l’étude de l’influence du changement de charge sur ce modèle comportemental.

Published
2018

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