Patents Assigned to CENTRALESUPELEC
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Patent number: 11476661Abstract: Disclosed is a device for controlling a terminal connected in a multi-terminal high-voltage direct current transmission facility, the terminal being able to provide or draw power on the DC part of the facility comprised between an upper power limit and a lower power limit, the device further comprising at least one regulation circuit configured to vary the power provided or drawn by the terminal on the DC part of the facility, as a function of a voltage variation on the DC part of the facility, the device further comprising a limitation circuit configured to limit the variation of the power provided or drawn by the terminal, for a given voltage variation, when the power difference between the power provided or drawn by said terminal and the upper power limit or the lower power limit becomes smaller than a determined value.Type: GrantFiled: November 16, 2018Date of Patent: October 18, 2022Assignees: SUPERGRID INSTITUTE, CENTRALESUPELECInventors: Kosei Shinoda, Jing Dai, Abdelkrim Benchaib, Xavier Guillaud, Bruno Luscan
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Patent number: 11070144Abstract: The invention relates to a multi-level modular converter provided with a control circuit comprising a computer to calculate an internal control setpoint of the converter and an energy management circuit allowing a power setpoint to be determined that is to be transmitted to the alternating electrical power supply network, the control circuit being configured to regulate the voltage at the point of connection of the converter to the direct electrical power supply network and to regulate the voltage at the terminals of each capacitor modelled as a function of the internal control setpoint and of the power setpoint to be transmitted to the alternating electrical power supply network.Type: GrantFiled: July 4, 2018Date of Patent: July 20, 2021Assignees: SUPERGRID INSTITUTE, CENTRALESUPELECInventors: Kosei Shinoda, Jing Dai, Abdelkrim Benchaib, Xavier Guillaud
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Patent number: 10931510Abstract: The invention relates to a method for synchronizing interconnected critical devices comprising servers and clients, each critical device being connected to another critical device by a virtual link, each termination of which is associated with a minimum and a maximum value of transmission time for a data packet, the method, implemented periodically, comprising: the reception of a message at a reception instant, said message comprising at least one time reference determined by a transmitter server, for each message received, the estimation of the current time of the transmitter server on the basis of: the time reference, a value of the internal clock of the current critical device at the current instant and at the reception instant, the minimum value and the maximum value of transmission time of the virtual link between the transmitter server and the current critical device.Type: GrantFiled: September 21, 2018Date of Patent: February 23, 2021Assignees: THALES, CENTRALESUPELECInventors: Martin Rayrole, Michaël Templier, Eric Fitterer, Dominique Marcadet, Frédéric Boulanger, Safouan Taha
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Publication number: 20200389014Abstract: Disclosed is a device for controlling a terminal connected in a multi-terminal high-voltage direct current transmission facility, the terminal being able to provide or draw power on the DC part of the facility comprised between an upper power limit and a lower power limit, the device further comprising at least one regulation circuit configured to vary the power provided or drawn by the terminal on the DC part of the facility, as a function of a voltage variation on the DC part of the facility, the device further comprising a limitation circuit configured to limit the variation of the power provided or drawn by the terminal, for a given voltage variation, when the power difference between the power provided or drawn by said terminal and the upper power limit or the lower power limit becomes smaller than a determined value.Type: ApplicationFiled: November 16, 2018Publication date: December 10, 2020Applicants: SUPERGRID INSTITUTE, CENTRALESUPELECInventors: Kosei SHINODA, Jing DAI, Abdelkrim BENCHAIB, Xavier GUILLAUD, Bruno LUSCAN
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Patent number: 10636928Abstract: A photovoltaic cell comprises a first layer of a first absorber material (1) comprising a front face, a rear face on which first contact electrodes having first polarity (101) are interdigitated with the second contact electrodes having second polarity (102), a second layer of a second absorber material (2), above the first layer, comprising a front face, of third contact electrodes having second polarity (203) being placed on the front face of the second layer, the first and second semiconductor materials having electron affinities and bandgap widths such that the carriers having the first polarity pass between the first and second layer and are collected from the first and second layers by the first electrodes (101), the carriers of second polarity are collected from the first layer by the second electrodes (102), and the carriers of second polarity are collected from the second layer by the third electrodes (203).Type: GrantFiled: December 2, 2016Date of Patent: April 28, 2020Assignees: Centre national de la recherche scientifique, CENTRALESUPELEC, Université Versailles Saint-Quentin-en-YvelinesInventors: Zakaria Djebbour, Anne Migan, Jean-Paul Kleider, Walid El-Huni
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Patent number: 10628001Abstract: Methods and systems for adapting user interfaces based on gold standards are proposed. According to certain embodiments, a gold standard is determined based on usage of a software application and other detected factors. Based on the gold standard, at least in part, a user interface is adapted to provide an improved experience for the user of the adaptive user interface.Type: GrantFiled: July 31, 2017Date of Patent: April 21, 2020Assignees: General Electric Company, CENTRALESUPELECInventors: Chloe Adam, Paul-Henry Cournède, Antoine Aliotti, Thomas Almecija
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Patent number: 10615714Abstract: The invention relates to a modular multilevel converter (10) including a control module (12) for regulating the internal energy stored in the capacitors of the submodules of an arm of the converter, the control module being suitable for limiting the internal energy to below an upper limit and/or to above a lower limit, by using parameters measured on the DC power supply network (110) and on the AC power supply network (120) together with setpoints for the operating power of the converter.Type: GrantFiled: July 3, 2017Date of Patent: April 7, 2020Assignees: SUPERGRID INSTITUTE, CENTRALESUPELECInventors: Kosei Shinoda, Abdelkrim Benchaib, Xavier Guillaud, Jing Dai
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Patent number: 10519522Abstract: The method for purifying oses from hemicellulose originating from lignocellulosic biomass includes eliminating the cellulose matrix and the solid residues and/or the suspended materials from the acid hydrolysate containing oses in order to obtain a clarified hydrolysate, and subjecting the clarified hydrolysate, without adding any basic chemical reagent to increase the pH to at least one step of ultrafiltration and/or to at least one step of nanofiltration, so as to obtain a filtrate containing the majority of the pentoses and a retentate containing the species likely to precipitate under the effect of an increase in the pH. The filtrate is treated by at least one step of electrodialysis so as to recover the acid catalyst from an acid-supplemented solution, and obtain a deacidified filtrate.Type: GrantFiled: October 30, 2015Date of Patent: December 31, 2019Assignee: CENTRALESUPELECInventors: Marc-Andre Theoleyre, Julien Lemaire
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Patent number: 10460491Abstract: The invention concerns a method for deformable fusion of a source multi-dimensional image (s(x)) and a target multi-dimensional image (t(x)) of an object, each image being defined on a multi-dimensional domain by a plurality of image signal samples, each sample having an associate position in the multi-dimensional domain and an intensity value, the method comprising estimating a smooth deformation field (d(x)) that optimizes a similarity criterion between the source image and the target image using a Markov Random Field framework, in near real-time performance. The similarity criterion is computed on transform coefficients obtained by applying a sub-space hierarchical transform to the image samples of the target image and to image samples obtained from the source image, an optimal tradeoff between a smoothness condition and the similarity criterion being automatically determined.Type: GrantFiled: March 26, 2015Date of Patent: October 29, 2019Assignee: CENTRALESUPELECInventors: Nikos Paragios, Singht Bharat, Stavros Alchatzidis
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Publication number: 20190273173Abstract: A photovoltaic cell comprises a first layer of a first absorber material (1) comprising a front face, a rear face on which first contact electrodes having first polarity (101) are interdigitated with the second contact electrodes having second polarity (102), a second layer of a second absorber material (2), above the first layer, comprising a front face, of third contact electrodes having second polarity (203) being placed on the front face of the second layer, the first and second semiconductor materials having electron affinities and bandgap widths such that the carriers having the first polarity pass between the first and second layer and are collected from the first and second layers by the first electrodes (101), the carriers of second polarity are collected from the first layer by the second electrodes (102), and the carriers of second polarity are collected from the second layer by the third electrodes (203).Type: ApplicationFiled: December 2, 2016Publication date: September 5, 2019Applicants: Centre national de la recherche scientifigue, CENTRALESUPELEC, Universite Versailles Saint-Quentin-en-YvelinesInventors: Zakaria Djebbour, Anne Migan, Jean-Paul Kleider, Walid El-Huni
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Patent number: 10312824Abstract: The invention relates to a modular multilevel converter (2) having a control module (4) and a computer (10) for computing a setpoint for the internal energy of the converter stored in the capacitors of the submodules of the arms. The control module is configured to deduce, from the setpoint for the internal energy of the converter, a setpoint for the voltage across the terminals of each modeled capacitor, which setpoint is used for regulating the voltage across the points of common coupling between the converter and the DC power supply network and the voltage across the terminals of each modeled capacitor.Type: GrantFiled: July 29, 2016Date of Patent: June 4, 2019Assignees: SUPERGRID INSTITUTE, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE LYON, CENTRALESUPELECInventors: Kosei Shinoda, Abdelkrim Benchaib, Xavier Guillaud, Jing Dai
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Patent number: 10283327Abstract: An apparatus for generating a flow of reactive gas for decontaminating a material, surface or area, comprises a first electrode member comprising a first plurality of conductive surfaces and a second electrode member comprising a second plurality of conductive surfaces. The second electrode member is arranged in spaced relationship with the first electrode member to define a reactor channel. The conductive surfaces are exposed to the reactor channel so as to form air gaps between the first plurality of conductive surfaces and the second plurality of conductive surfaces. An air blower generates a flow of air through the reactor channel.Type: GrantFiled: June 24, 2016Date of Patent: May 7, 2019Assignees: The Board of Trustees of the Leland Stanford Junior University, CentraleSupélecInventors: Christophe O. Laux, Johan O. Andreasson, Luke C. Raymond, Diane Rusterholtz-Duval, David Pai, Deanna Lacoste, Florent Sainct, Sebastien Mannai, Florian Girschig, Pierpaolo Toniato, Erwan Pannier, Augustin Tibère-Inglesse
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Publication number: 20190115488Abstract: The invention relates to a photoreceptor device, with a first crystalline, semi-conductive material, comprising a first lattice parameter, and a second crystalline, semi-conductive material, deposited on the first material and comprising a second lattice parameter, different from the first lattice parameter. In particular, the device comprises an interface layer between the first and second materials, made from an amorphous material and structured to comprise regularly spaced apart openings in the plane of the layer. The second material comprises protuberances coming out of the openings of the interface layer and forming separated crystal grains, each grain comprising a plurality of facets forming at least one angle relative to one another.Type: ApplicationFiled: April 18, 2017Publication date: April 18, 2019Applicants: Centre national de la recherche scientifique, Sorbonne Université, CENTRALESUPELECInventors: Denis MENCARAGLIA, Daniel BOUCHIER, Charles RENARD, James CONNOLY, Thimothée MOLIERE
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Patent number: 10184971Abstract: Disclosed is a method for diagnosis by reflectometry of a bundle of power lines including an input point and a plurality of branches, including the following steps: inserting (S50) electric markers having different frequency characteristics onto the branches of the bundle; injecting (S52) a test signal into the bundle from the input point; receiving (S54) a set of reflected signals produced by reflections of the test signal in the branches; analyzing all the reflected signals by identifying the markers and by assigning (S56) each reflected signal to one of the branches according to the frequency characteristic of the marker inserted onto the branch; and identifying the presence/absence of a defect in the branch by comparing (S58) the reflected signal assigned to the branch with a reflected signal model obtained by modelling the reflection of the test signal in the branch in the absence of any defect in the branch.Type: GrantFiled: June 19, 2015Date of Patent: January 22, 2019Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS, CENTRALESUPELEC, INRIA—INSTITUT NATIONAL DE LA RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUEInventors: Florent Loete, Michel Sorine
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Publication number: 20180040152Abstract: The invention concerns a method for deformable fusion of a source multi-dimensional image (s(x)) and a target multi-dimensional image (t(x)) of an object, each image being defined on a multi-dimensional domain by a plurality of image signal samples, each sample having an associate position in the multi-dimensional domain and an intensity value, the method comprising estimating a smooth deformation field (d(x)) that optimizes a similarity criterion between the source image and the target image using a Markov Random Field framework, in near real-time performance. The similarity criterion is computed on transform coefficients obtained by applying a sub-space hierarchical transform to the image samples of the target image and to image samples obtained from the source image, an optimal tradeoff between a smoothness condition and the similarity criterion being automatically determined.Type: ApplicationFiled: March 26, 2015Publication date: February 8, 2018Applicant: CENTRALESUPELECInventors: Nikos PARAGIOS, Singht BHARAT, Stavros ALCHATZIDIS
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Patent number: 9779850Abstract: The present invention relates to a process for synthesizing carbon nanotubes by continuous chemical vapor deposition at the surface of reinforcements, said reinforcements constituting a mixture A (i) of particles and/or fibers of a material comprising at least one oxygen atom and (ii) of particles and/or fibers of a material chosen from carbides and/or of a material comprising at least one silicon atom, said process comprising the following steps, carried out under a stream of inert gas(es) optionally as a mixture with hydrogen: (i) heating of said mixture of reinforcements A in a reaction chamber at a temperature ranging from 400° C. to 900° C.Type: GrantFiled: December 7, 2012Date of Patent: October 3, 2017Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE-CNRS, CENTRALESUPELECInventors: Jinbo Bai, Anthony Dichiara, Jinkai Yuan
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Patent number: 9418468Abstract: A method and device for elastic registration of a two-dimensional source digital image of an object of interest with a slice of a three dimensional target volume of the object of interest is provided which defines a Markov Random Field framework having at least one undirected pairwise graph superimposed a two-dimensional image domain having at least a set of regular vertices and at least a set of edges, and defines a grid of control points, each control point corresponding to a vertex of the set of regular vertices, and a neighborhood system of edges associated with vertices. The method also defines a set of multi-dimensional labels of a discrete space to apply a displacement to each control point, the control point displacement defining a transformation adapted to obtain a plane slice of the target volume and an in-plane deformation transformation of the source digital image.Type: GrantFiled: January 7, 2014Date of Patent: August 16, 2016Assignee: CENTRALESUPELECInventors: Nikos Paragios, Enzo Ferrante, Rafael Marini Silva
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Patent number: 9378933Abstract: An apparatus for generating a flow of reactive gas for decontaminating a material, surface or area, which comprises a first electrode member comprising a first conductive sheet and a first plurality of conductive pins protruding from a surface of the first conductive sheet and a second electrode member comprising a second conductive sheet and a second plurality of conductive pins protruding from a surface of the second conductive sheet. The second electrode member is arranged in spaced relationship with the first electrode member to define a reactor channel between the first conductive sheet and the second conductive sheet The first plurality of conductive pins protrude within the reactor channel towards the second conductive sheet and the second plurality of conductive pins protrude within the reactor channel towards the first conductive sheet so as to form air gaps between the first plurality of conductive pins and the second plurality of conductive pins.Type: GrantFiled: December 20, 2013Date of Patent: June 28, 2016Assignee: CentraleSupélecInventors: Christophe Laux, Diane Rusterholtz-Duval, David Pai, Deanna Lacoste, Florent Sainct, Sebastien Mannai, Florian Girschig, Pierpaolo Toniato