A5089320839- Real-time simulation and control systems
- Silicon Nanostructures and Photoluminescence
- HVDC Systems and Fault Protection
- Semiconductor materials and devices
- Modeling and Simulation Systems
- Ion-surface interactions and analysis
- Silicon Carbide Semiconductor Technologies
- Nanowire Synthesis and Applications
- Labor Movements and Unions
- Multilevel Inverters and Converters
- Social Sciences and Governance
- Radiation Effects in Electronics
- Integrated Circuits and Semiconductor Failure Analysis
- Semiconductor materials and interfaces
- Lightning and Electromagnetic Phenomena
- Simulation Techniques and Applications
- Electromagnetic Compatibility and Noise Suppression
- Photonic and Optical Devices
- Education, sociology, and vocational training
- Electric and Hybrid Vehicle Technologies
- Multiculturalism, Politics, Migration, Gender
- Smart Grid Security and Resilience
- Diamond and Carbon-based Materials Research
- Electronic and Structural Properties of Oxides
- Sensorless Control of Electric Motors
Université de Caen Normandie
2009-2024
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2010-2024
Centre National de la Recherche Scientifique
2011-2024
Centre de Recherche sur les Ions, les Matériaux et la Photonique
2015-2024
École Nationale Supérieure d'Ingénieurs de Caen
2009-2024
Normandie Université
2018-2024
Opal-Rt Technologies (Canada)
2013-2022
Université de Montréal
1984-2016
Bellingham Technical College
2015
GANIL
2011-2014
Following a description used to explain phase transformation observed after pulsed femtosecond laser irradiation, transient thermal process is describe latent-track formation high electronic excitation induced by energetic (GeV) heavy ions. The calculation restricted the amorphous materials a-Ge, a-Si, and a-${\mathrm{Fe}}_{85}$${\mathrm{B}}_{15}$, for which nearly all radii and/or macroscopic thermodynamic properties are known. heat-flow equation solved numerically in cylindrical geometry....
This task force paper summarizes the state-of-the-art real-time digital simulation concepts and technologies that are used for analysis, design, testing of electric power system its apparatus. highlights main building blocks simulator, i.e., hardware, software, input-output systems, modeling, solution techniques, interfacing capabilities to external hardware various applications. It covers most commonly simulators in both industry academia. A comprehensive list is provided a tabular review....
This paper presents a compendious summary of power hardware-in-the-loop (PHIL) simulations that are used for designing, analyzing, and testing electrical system components. PHIL an advanced application real-time represent novel methods, which conjoin software hardware testing. contribution outlines necessary requirements the implementation simulations, defined by nature digital simulator, amplifier, interface (PI). Fundamental characteristics, such as input/output systems, PI, algorithm,...
This paper presents a new solution method that combines state-space and nodal analysis for the simulation of electrical systems. The presented flexible clustering state-space-described subsystems into offers several advantages efficient switched networks, nonlinear functions, interfacing with model equations. extends concept discrete companion branch equivalent approach to described systems enables natural coupling between them. is simultaneous benefitting from two different modeling...
Real-time (RT) simulation is a highly reliable method that mostly based on electromagnetic transient of complex systems comprising many domains. It increasingly used in power and energy for both academic research industrial applications. Due to the evolution computing RT simulators recent years, new classes applications expanded fields practice could now be addressed with simulation. This increase computation implies models can built more accurately whole system gets closer reality. Task...
This paper deals with the current state-of-the-art in interfacing issues related to real-time digital simulators employed simulation of power systems and power-electronic systems. provides an overview technical challenges encountered their solutions as evolved. Hardware-in-the-loop for controller hardware apparatus are also presented.
Modular multilevel converter (MMC) structures are composed of several hundreds to thousands half-bridge converters. Such large numbers power switches and electrical nodes introduce important numerical challenges for the computation electromagnetic transients. The problem becomes particularly more complex real-time simulations. This paper presents a feasibility study on simulation MMC models. CPU-based field-programmable gate array-based implementations proposed evaluated MMCs having up 401...
With the transition toward a smart grid, power system has become strongly intertwined with information and communication technology (ICT) infrastructure. The interdependency of both domains requires combined analysis physical ICT processes, but simulating these together is major challenge due to fundamentally different modeling simulation concepts. After outlining challenges, such as time synchronization event handling, this paper presents an overview state-of-the-art solutions interface...
This paper discusses the various aspects involving research and development of smart grids. Discussed are applications, from large grid renewable integration, wide-area monitoring, protection, control systems to microgrids. Load scheduling power balance, communications issues, understanding customer behavior, large-area distribution only some challenge making grids more robust intelligent. The potential complexity such requires careful study analysis before actual realization. explains how...
An application of a normalized H/sub /spl infin// loop-shaping technique for design and simplification damping controllers in the liner matrix inequalities (LMI) framework is illustrated this paper. The solution sought numerically using LMIs with additional pole-placement constraints. This ensures that time-domain specifications are met besides robust stabilization. designed control algorithm implemented rapid prototyping controller. performance controller validated real time detailed model...
A facile and rapid photochemical method for preparing supported silver nanoparticles (Ag-NPs) in a suspension of faujasite type (FAU) zeolite nanocrystals is described. Silver cations are introduced by ion exchange into the subsequently irradiated with Xe-Hg lamp (200 W) presence photoactive reducing agent (2-hydroxy-2-methylpropiophenone). UV-vis characterization indicates that irradiation time intensity (I0) influence significantly amount reduced. The full reduction takes place after 60 s...
This article provides a unique benchmark to integrate and systematically evaluate advanced functionalities of microgrid downstream device controllers. The describes Banshee, real-life power distribution network. It also details real-time controller hardware-in-the-loop (HIL) prototyping platform test the responses controllers verify decision-making algorithms. aims address industry needs for common basis overall microgrid, distributed energy resources (DERs), protective devices. will...
This paper presents a novel computer-based tool for real-time simulation and rapid control prototyping of power electronic systems drives. The consists innovative algorithmic software (ARTEMIS/sup TM/) the fixed-time-step stiff electric circuits, laboratory package (RT-LAB/sup execution Simulink/sup TM/ block diagram circuits over cluster PCs, fully digital or hardware-in-the-loop applications.
The present article deals with the optimized processing conditions leading to highest density of Si nanoclusters which play role sensitizing centers for nearby Er ions within a silica matrix. layers were obtained by reactive magnetron sputtering under plasma Ar mixed different rates hydrogen, and subsequently annealed at various temperatures. increase dilution degree hydrogen was found multiply nucleation sites whose foreshadows that formed upon annealing. Both content annealing temperature...
This paper presents the fastest-ever-reported, real-time (RT) simulation of an AC drive on PC-cluster. The RT simulator is used to simulate a complete PMSM circuit in hardware-in-the-loop (HIL) application. It consists fed by 3-phase IGBT inverter, DC link capacitor and diode bridge. model runs connected external controller analog digital inputs outputs for closed loop operation. main innovation this work that cycle as low 10 mus, which constitutes our knowledge shortest time step ever...
CaF${}_{2}$ crystals as representatives of the class ionic nonamorphizable insulators were irradiated with many different swift heavy ions energy above 0.5 MeV/u providing a broad range electronic losses (${S}_{e}$). Beam-induced modifications characterized by Channeling Rutherford Backscattering Spectrometry (C-RBS) and x-ray diffraction (XRD), complemented transmission electron microscopy (TEM). Results from C-RBS give evidence significant damage appearing ${S}_{e}$ threshold 5...
This paper presents the RT-LAB Electrical Drive Simulator technology along with practical applications. The simulation software enables parallel of power drives and electric circuits on clusters PC running QNX or RT-Linux operating systems at sample time below 10 μs. Using standard Simulink models including SimPowerSystems models, build computation communication tasks necessary to make electrical off-the-shelf PCs links like InfiniBand. To accommodate high bandwidth systems, comes special...
This paper presents a new development in the field of design process and testing motor drives, for hardware-in-the-loop (HIL) applications. It consists implementing finite element (FE) method applied to electric motors on real-time simulator; coupled with circuit simulation, this enables accurate simulation complete drive, including inverter motor. The describes integration FE-based model generated by JMAGreg software, high-end RT-LABreg simulator. solution combining model, important...
Three-dimensional imaging of silicon nanoclusters array in silicon-rich oxide layers was evidenced and studied. The atom probe tomography technique allows to give the composition interface with silica matrix. These results new insights for understanding properties Si-based photonic devices.
The ion-beam-shaping mechanism is studied for several classes of nearly monodispersed metallic nanoparticles (Au, Ag, and Au${}_{0.5}$Ag${}_{0.5}$). They are in the range 3--100 nm embedded within a silica matrix. Experimentally, we show that depending on their initial sizes, final morphologies can be obtained: (i) spherical shapes, (ii) facetted nanoparticles, (iii) nanorods, (iv) nanowires. In parallel, thermal-spike model was implemented three-dimensional anisotropic composite media to...
Simulation has always played an important role in the development, integration and deployment of aircraft, land vehicles naval ships. Ever-increasing system design complexity also increased necessity for more stringent testing capabilities these new topologies. Real-time simulators can be very useful tools to test, validate integrate complex devices. Maintenance subsystem upgrades, common issues such systems, cannot easily done on real especially larger systems like those navy This is when a...
This paper presents a real-time simulator of permanent magnet synchronous motor (PMSM) drive based on finite-element analysis (FEA) method and implemented an FPGA card for HIL testing controllers. The proposed PMSM model is phase domain with inductances flux profiles computed from the JMAG-RT finite element software. A 3-phase IGBT inverter drives machine. Both models are chip, no VHDL coding, using RT-LAB simulation platform Opal-RT Simulink blockset called xilinx system generator (XSG)....
Si-rich-SiO2(SRSO)/SiO2 multilayers (MLs) have been grown by reactive magnetron sputtering. The presence of silicon nanoclusters (Si-ncls) within the SRSO sublayer and annealing temperature influence optical absorption as well photoluminescence. optimized has found to be 1100 °C, which allows recovery defects thus enhances Four MLs with Si-ncl size ranging from 1.5 8 nm annealed using conditions then studied transmission measurements. Optical modeled so that a effect in linear coefficient α...