Patents Assigned to SUPERGRID INSTITUTE
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Patent number: 11961663Abstract: A superconducting current limiting dipole (L6), comprising a superconducting conductor (F6) wound so as to form a two-wire coil extending in a single plane, a layer of insulator (E1 to E11, H1) being arranged between two turns of said coil. The superconducting conductor (C1 to C6) consists of at least four separate superconducting cables (C1 to C6) wound in parallel and arranged in at least two pairs, each of the pairs being formed by two of said superconducting cables (C1 to C6) that are electrically connected to one another in a first connection area, and, in a second connection area, one of the superconducting cables of one pair is electrically connected to one of the superconducting cables of the other pair, the other superconducting cable of each pair being connected to an electrical connection terminal (T1, T2) or to an additional pair.Type: GrantFiled: December 12, 2018Date of Patent: April 16, 2024Assignees: Supergrid Institute, Institute Polytechnique De GrenobleInventors: Pierre Legendre, Pascal Tixador
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Publication number: 20240097587Abstract: The invention relates to a method for controlling an energy production system (1), comprising: —a connecting link (6) provided with a connection (62) to an AC network (2); —a turbine system (3) comprising an electric machine (31) for delivering a nominal electrical power Pnom; —an energy storage system (14), comprising the following steps; —receipt of a first electrical power setpoint Ps0 and control of the turbine system (3) so as to deliver an electrical power Pt0=Ps0; and —receipt of an electrical power setpoint Ps1, where ?Ps=Ps1?Ps0 and |?Ps|>Pnom*0.3; a) application of a hydraulic setpoint to the turbine system (3) so as to increase the delivered electrical power Pti thereof and prevent the storage system (14) from delivering electrical power (62); b) determination of the power Pea that the storage system (14) is able to supply; c) when Pti+Pea?Ps1??1, the storage system (14) delivers an electrical power Pe1 to satisfy the requirement Ps1??1?Pe1+Pti?Ps1+?2.Type: ApplicationFiled: January 31, 2022Publication date: March 21, 2024Applicant: SUPERGRID INSTITUTEInventors: Renaud Guillaume, Hugo Mesnage
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Patent number: 11910729Abstract: A superconducting current limiter having at least one superconducting conductor (3) wound so as to form a coil (2) extending in a single plane and connecting a first electrical connection terminal to a second electrical connection terminal, an electrically insulating spacer (8) being arranged between two turns of the coil. The superconducting conductor (3) consists of at least two separate superconducting cables (5) wound in parallel and whose ends are electrically connected by the first electrical connection terminal and by the second electrical connection terminal, respectively. An electrically conductive spacer (12) is arranged between two of said separate superconducting cables (5), this electrically conductive spacer (12) being able to be traversed by a cooling fluid.Type: GrantFiled: May 16, 2019Date of Patent: February 20, 2024Assignees: Supergrid Institute, Institut Polytechnique De GrenobleInventors: Pierre Legendre, Pascal Tixador
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Patent number: 11824346Abstract: A current cut-off device for high-voltage direct current, includes: at least one primary mechanical switch placed in a main line between a primary point and a secondary point; a primary surge arrester arranged in parallel with the primary switch; and an oscillatory circuit arranged electrically in parallel with the primary switch and electrically in parallel with the primary surge arrester. The oscillation circuit includes, electrically in series, at least an inductance, a capacitance and an oscillation trigger. The device has, in the oscillation circuit, a controllable device for varying the resistance value inserted in series into the oscillation circuit.Type: GrantFiled: December 23, 2019Date of Patent: November 21, 2023Assignee: SUPERGRID INSTITUTEInventor: Yang Yang
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Publication number: 20230341473Abstract: A method for monitoring a system for transmitting electrical power for a network for transmitting DC electrical power. The method involves determining, along a measurement segment, a profile of a temperature parameter, determining a theoretical leakage current between the grounding connections of the measurement segment, taking into account the temperature parameter profiles and the load current and voltage, measuring the leakage current between the grounding connections of the measurement segment, and generating an alert if there is a difference between the theoretical and measured leakage current.Type: ApplicationFiled: May 11, 2021Publication date: October 26, 2023Applicant: SUPERGRID INSTITUTEInventors: Martin Molby HENRIKSEN, Ludovic Stéphane BOYER
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Patent number: 11798763Abstract: A current cut-off device for high-voltage DC current includes: between a primary point and an intermediate point, a primary diversion member and, in parallel, a primary surge protector; a secondary mechanical switch between the intermediate point and the secondary point; a main resonator whose terminal is linked to the secondary point; a main oscillation switch; a main surge protector, in parallel with a main capacitance of the main resonator; wherein the main oscillation switch includes three terminals linked respectively to the primary point, to the intermediate point and to the other terminal of the main resonator; the changeover switch can switch at least between three direct, inverting and isolated states.Type: GrantFiled: March 16, 2020Date of Patent: October 24, 2023Assignee: SUPERGRID INSTITUTEInventors: Wolfgang Grieshaber, Yang Yang, Pierre Legendre
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Patent number: 11791617Abstract: A high-voltage direct current cut-off device, includes: a primary mechanical switch and a secondary mechanical switch placed successively between a primary point and a secondary point but either side of an intermediate point, a primary surge arrester arranged parallel with the primary switch, a secondary surge arrester arranged electrically parallel with the secondary switch. The secondary surge arrester is arranged electrically between the intermediate point and the secondary point, and in that the device comprises a capacitive buffer circuit electrically in parallel with the assembly formed by the primary switch and the secondary switch, and electrically in parallel with the assembly formed by the primary surge arrester and the secondary surge arrester, wherein the capacitive buffer circuit comprises an activation switch and a buffer capacitance.Type: GrantFiled: December 20, 2019Date of Patent: October 17, 2023Assignee: SUPERGRID INSTITUTEInventor: Yang Yang
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Publication number: 20230268768Abstract: An energy production system including a hydraulic turbine system having undesirable electrical power output setpoints and identified safe electrical power output setpoints, an energy storage system, a connection connected to the energy storage system and to an electric machine of the hydraulic turbine system, and further connected to an AC power network, a device for determining the state of charge, a control circuit controlling a transfer of electrical power between the connection and the energy storage system, configured to receive an electrical power setpoint value (Reps) and configured to determine that this received electrical power setpoint value belongs to the undesirable electrical power output setpoint values to generate an electrical power transfer setpoint value (Epts), and an actual electrical power output setpoint value (Aepos) belonging to the safe electrical power output setpoint values, satisfying the relationship Reps=Epts+Aepos.Type: ApplicationFiled: June 30, 2021Publication date: August 24, 2023Applicant: SUPERGRID INSTITUTEInventors: Renaud GUILLAUME, Hugo MESNAGE
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Publication number: 20230238804Abstract: A power transfer system includes a first branch including a controlled switch and a second branch including a variable frequency converter, in parallel between an AC network and a reversible pump-turbine, the variable frequency converter includes: a first AC/DC converter having a first DC interface, and a second AC/DC converter having a second DC interface, the first and second DC interfaces being connected by a DC link, a control circuit having a first mode wherein it simultaneously opens the switch and it transfers electrical power until it reaches the same frequency on two AC interfaces, and having a second mode wherein it closes the switch of the first branch; an energy storage system; and a switching system for selectively connecting the energy storage system to the DC link.Type: ApplicationFiled: June 30, 2021Publication date: July 27, 2023Applicant: SUPERGRID INSTITUTEInventors: Hugo MESNAGE, Renaud GUILLAUME, Loïc LECLERE, Florent MOREL, Florian ERRIGO
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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: 11404878Abstract: The invention relates to a method for controlling an electrical transmission link (3) between first and second AC voltage buses (11, 21) comprising a high-voltage DC line (320), first and second AC/DC converters (321, 322) connected to the high-voltage DC line (320), comprising: retrieving a setpoint active power value (Pdc0) applied to a converter (321, 322); retrieving the instantaneous values V1 and V2 of the voltages on the first and second buses; wherein the setpoint active power of the first or of the second converter is modified by a value including a term ?Pdc, so as to impose new dynamics on the first and second areas, where: ?Pdc=?Pdcs+?Pdca.Type: GrantFiled: March 6, 2019Date of Patent: August 2, 2022Assignees: SUPERGRID INSTITUTE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Juan Carlos Gonzalez, Valentin Costan, Gilney Damm, Abdelkrim Benchaib, Françoise Lamnabhi-Lagarrigue, Bruno Luscan
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Publication number: 20220028574Abstract: The invention relates to an electrically insulating composite material (1) comprising a polyepoxide matrix (2) of cycloaliphatic type or of diglycidyl ether type in a content of less than 40% by mass, from 20 to 75% by mass of one or several micrometric and/or mesometric filler(s) (3), and from 0.1 to 20% by mass of at least one ionic liquid (4), the masses being expressed relative to the total mass of the electrically insulating composite material (1). The invention also relates to a method for manufacturing such an electrically insulating composite material (1), as well as its use for an electrically insulating support (9) in a metal-enclosed substation (5).Type: ApplicationFiled: December 27, 2019Publication date: January 27, 2022Applicants: SUPERGRID INSTITUTE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), UNIVERSITE CLAUDE BERNARD LYON 1, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE LYON, UNIVERSITE JEAN MONNET SAINT ETIENNEInventors: Thibaut LEFORT, Damien BACHELLERIE, Sébastien PRUVOST, Jannick DUCHET, Sébastien LIVI
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Patent number: 11121549Abstract: A power flow control device intended to be used in a mesh network. The device includes a first voltage source connected between a first terminal (B1) and a third terminal (B3). A second voltage source is connected between a second terminal (B2) and the third terminal (B3). A current source is connected alternately to the first voltage source and the second voltage source and configured to ensure a transfer of energy between the first voltage source and the second voltage source. A switching means is arranged to allow the current source to be connected alternately in parallel with the first voltage source or in parallel with the second current source.Type: GrantFiled: July 13, 2018Date of Patent: September 14, 2021Assignees: Supergrid Institute, Ecole Centrale De LyonInventors: Selle Toure, Florent Morel, Serge Poullain
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Patent number: 11099242Abstract: The present invention relates to a device (1) for measuring a magnetic field (B) and/or an electric field (E) comprising:—a measurement cell (3) enclosing a gas that is sensitive to the Zeeman effect and/or to the Stark effect, a polarised light source (7) the wavelength of which is tuned to an absorption line of the gas that is sensitive to the Zeeman effect and/or to the Stark effect,—at least one polarimetry system (11) configured to measure a first parameter corresponding to the rotation by a polarisation angle caused by the passage of the beam (9) through the measurement cell (3) enclosing a gas that is sensitive to the Zeeman effect and/or to the Stark effect,—a system (13) for measuring absorption, configured to measure a second parameter corresponding to the absorption of the beam (9) by the gas that is sensitive to the Zeeman effect and/or to the Stark effect in the measurement cell (3), and a processing unit (15) configured to combine the measurement of the first parameter corresponding to the rotatType: GrantFiled: December 18, 2018Date of Patent: August 24, 2021Assignee: Supergrid InstituteInventors: Geoffrey Renon, Paul Vinson
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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: 11049795Abstract: A power electronic module (1) including at least one semiconductor (5) that is connected to connection conductors (6, 7), and including a dielectric carrier (10) having both a fixed layer (9), on which at least one of said connection conductors (6) is mounted, and a movable layer (11), the fixed layer (9) and the movable layer (11) exhibiting similar dielectric permittivities and being superposed along at least one surface facing the at least one connection conductor (6).Type: GrantFiled: January 29, 2018Date of Patent: June 29, 2021Assignees: Supergrid Institute, Universite Claude Bernard Lyon 1, Ecole Centrale De Lyon, Institut National Des Sciences Appliquees De Lyon, Centre National De La Recherche ScientifiqueInventor: Cyril Buttay
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Patent number: 11005261Abstract: A control method allows the control of an installation for transmitting electricity comprising a DC transmission network including a group of electricity transmission lines that are linked to one another. The method allows the opening of at least one N-1 safety system, for each safety system being opened, the contribution to the flow of current through the group of transmission lines, originating from the converter station associated with the safety system that is opened, is removed. Furthermore, the method also allows a search for the short-circuit fault in order to identify the faulty transmission line, and an operation, implemented after identification of the faulty transmission line by the search step, of isolating the faulty transmission line by opening the line circuit breakers of the faulty transmission line.Type: GrantFiled: August 30, 2017Date of Patent: May 11, 2021Assignees: Supergrid Institute, Universite Grenoble AlpesInventors: Dieynaba Loume, Alberto Bertinato, Bertrand Raison
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Patent number: 10998710Abstract: The invention proposes a high-voltage direct current cut-off device, comprising: in series, a cut-off device and a current limiter; an accumulation line in parallel with the current limiter, an oscillating circuit, in parallel with the cut-off apparatus, comprising an oscillation control switch and having an inductance wherein the accumulation line includes at least two accumulation capacitors, and in that the oscillation line extends from a branch connection point of the accumulation line situated between the two accumulation capacitors, determining a secondary segment of the accumulation line connected to the main conduction line between the current limiter and the main cut-off apparatus so as to form part of the oscillating circuit.Type: GrantFiled: January 15, 2018Date of Patent: May 4, 2021Assignee: SUPERGRID INSTITUTEInventors: Pierre Legendre, Raphaël Chassagnoux, Christophe Creusot, Philippe Guuinic
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Patent number: 10951034Abstract: A method of protecting a high-voltage network comprising the steps for maintaining first controlled switches closed and second controlled switches open; measuring voltage and current on high-voltage interfaces; communicating the direction of the current to the other end of a high-voltage line; for each node: identifying a fault; verifying that the current is lower than the current interruption capability of the high-voltage interface switch and opening this switch.Type: GrantFiled: September 11, 2017Date of Patent: March 16, 2021Assignees: Supergrid Institute, Institut Polytechnique De Grenoble, Universite Grenoble AlpesInventors: William Leon Garcia, Alberto Bertinato, Bertrand Raison, Pascal Tixador, Bruno Luscan
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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