Abrégé

The disclosed embodiments aim to improve upon existing multi stage generators for providing power to a load. In particular, embodiments of the invention include a regulator situated between the output of a pilot exciter and the main exciter of a multi stage generator system, the regulator arranged to limit the voltage available to a field current control element which sets the field current supplied to the main exciter.

Classes IPC  ?

• H02P 9/48 - Dispositions pour obtenir des caractéristiques constantes à la sortie, la génératrice étant à vitesse variable, p. ex. sur un véhicule
• H02P 9/00 - Dispositions pour la commande de génératrices électriques de façon à obtenir les caractéristiques désirées à la sortie
• H02P 101/25 - Adaptation particulière des dispositions pour la commande de génératrices pour moteurs à combustion
• H02P 101/30 - Adaptation particulière des dispositions pour la commande de génératrices pour aéronefs
• F01B 23/10 - Adaptations pour la commande des générateurs électriques ou combinaisons avec ceux-ci
• B64D 41/00 - Installations génératrices de puissance pour servitudes auxiliaires

Abrégé

The disclosed embodiments aim to improve upon existing multi stage generators for providing power to a load. In particular, embodiments of the invention include a regulator situated between the output of a pilot exciter and the main exciter of a multi stage generator system, the regulator arranged to limit the voltage available to a field current control element which sets the field current supplied to the main exciter.

Classes IPC  ?

• H02P 9/00 - Dispositions pour la commande de génératrices électriques de façon à obtenir les caractéristiques désirées à la sortie
• H02P 9/10 - Commande s'exerçant sur le circuit d'excitation de la génératrice afin de réduire les effets nuisibles de surcharges ou de phénomènes transitoires, p. ex. application, suppression ou changement brutal de la charge
• H02P 9/48 - Dispositions pour obtenir des caractéristiques constantes à la sortie, la génératrice étant à vitesse variable, p. ex. sur un véhicule

Abrégé

A method for producing a logic network, comprising a step (110) of generating a table of elements (30), using a description of an electric circuit (20) relating to a configuration (10) of a configurable logic network, each row of the table of elements (30) indicating, for a logic element instantiated in the network configuration, a type of logic element and at least one logic element connected to an input of said logic element, followed by a step (120; 220) of using at least one input of the table of elements (30) with a data table (40; 60) comprising individual items of information relating to types of logic elements of the logic network, in order to optionally rewrite (130) the description of the electric circuit (20) in such a way as to improve the integrated reliability (50; 90) of the configuration (10), and finally a step (140) of generating configuration data (55) and integrating (150) the configuration data in a configurable logic network.

Classes IPC  ?

• G06F 11/08 - Détection ou correction d'erreur par introduction de redondance dans la représentation des données, p. ex. en utilisant des codes de contrôle
• G06F 17/50 - Conception assistée par ordinateur
• H03K 19/003 - Modifications pour accroître la fiabilité

Abrégé

The invention relates to a method for manufacturing an electrical conductor from a carbon nanotube powder and a copper salt powder. The method comprises the following steps: - mixing the carbon nanotube powder in a solution; - dispersing the carbon nanotubes in the solution; - adding the copper salt to the solution; - heat treatment making it possible to convert the copper salt into copper oxide; - heat treatment making it possible to convert the copper oxide into copper; - densification by hot-pressing; and - hot extrusion.

Classes IPC  ?

• H01B 1/02 - Conducteurs ou corps conducteurs caractérisés par les matériaux conducteurs utilisésEmploi de matériaux spécifiés comme conducteurs composés principalement de métaux ou d'alliages
• H01B 1/04 - Conducteurs ou corps conducteurs caractérisés par les matériaux conducteurs utilisésEmploi de matériaux spécifiés comme conducteurs composés principalement soit de compositions à base de carbone-silicium, soit de carbone soit de silicium
• B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
• B22F 3/20 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet par extrusion
• B22F 9/24 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par un procédé chimique avec réduction de mélanges métalliques à partir de mélanges métalliques liquides, p. ex. de solutions

Abrégé

Supply chain comprising a supply device and a load (25), the supply device comprising: an autotransformer (21) exhibiting at output N (integer > 2) triplets of distinct phases, N rectifiers (22) each linked at input to a triplet of phases and exhibiting at output a pair of polarized terminals (+, -), an application converter stage with DC input and AC or DC output (24, 24') linked at input to the rectifiers (22) by way of a filtering stage (23) and at output to the load (25). The application converter stage (24, 24') comprises N application converters with DC input and AC or DC output (24.1, 24.1') and the filtering stage (23) comprises N filtering circuits (23.1), each of the application converters (24.1, 24.1') being linked at input to one of the filtering circuits (23.1), this filtering circuit (23.1) being linked directly at input to the pair of polarized terminals (+, -) of one of the rectifiers (22), each of the application converters (24.1, 24.1') linked at output to said load (25).

Classes IPC  ?

• H02M 1/14 - Dispositions de réduction des ondulations d'une entrée ou d'une sortie en courant continu
• H02M 5/458 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases avec transformation intermédiaire en courant continu par convertisseurs statiques utilisant des tubes à décharge ou des dispositifs à semi-conducteurs pour transformer le courant continu intermédiaire en courant alternatif utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
• H02M 7/493 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande les convertisseurs statiques étant agencés pour le fonctionnement en parallèle

Abrégé

The invention relates to a method for characterising a strand (1) of electric cables (2, 3, 4...), comprising taking into account, for at least one surface temperature of the cables (Tsurface), both a sum of heat fluxes (Φ1, Φ2,... Φn) calculated for each cable (2, 3, 4...) for the heating effect caused by the electrical resistance of the cable through which an electric current (i1, i2,... i,n) circulates, and a heat flux (Φs) calculated for the heat released by the strand (1) into the environment thereof, in order to render compatible the sizing of the cables (2, 3, 4...) and the use thereof.

Classes IPC  ?

• G06F 17/50 - Conception assistée par ordinateur
• H01B 13/012 - Appareils ou procédés spécialement adaptés à la fabrication de conducteurs ou câbles pour fabriquer des faisceaux de fils

Abrégé

The invention relates to a device for protecting against short-circuits upstream of an electrical power supply module (.1,60, 160'), comprising an inlet filter with at least one capacitor (106 to 108, 106' to 108') and an inductance (104, 105, 194', 105') and a converter (120, 120') with components associated with a plurality of freewheeling diodes (118, 118'}. Said device comprises at least an auxiliary winding (131) and a dissipative element (132) which are associated with the inlet filter, allowing the production of a small inlet filter without over-dimensioning the freewheeling diodes (118, 118').

Classes IPC  ?

• B64D 41/00 - Installations génératrices de puissance pour servitudes auxiliaires
• H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
• H02H 7/122 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour convertisseursCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour redresseurs pour convertisseurs ou redresseurs statiques pour onduleurs, c.-à-d. convertisseurs de courant continu en courant alternatif
• H02H 9/00 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion
• H02H 9/02 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion sensibles à un excès de courant

Abrégé

The invention relates to a method for controlling a synchronous electric machine having permanent magnets, including a stator and a rotor suitable for rotating relative to a stator, the method including the steps of: measuring a DC voltage (Vdc) supplied by a power source; determining set values (id*, iq*) of current components in a rotating frame of reference (d, q) associated with the rotor, depending on the measured voltage (Vdc), on an instantaneous speed of rotation (Ωmeca) of the rotor relative to the stator and on a set torque (Γ*); and controlling a direct/alternating converter for converting the DC voltage supplied by the source of alternating phase voltage (Vphase) applied to the stator with a view to generating a phase current in the stator consistent with the set values, in which the set values (id*, iq*) of current components are determined by means of a control table in which multiple triplets of direct current voltage values are recorded, of the speed of rotation of the rotor, and of set torque, and for each triplet, precalculated set values of associated current components.

Classes IPC  ?

• H02P 21/00 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ

Abrégé

The invention relates to an electrical cut-off member for isolating a faulty load or a short-circuit comprising in series a static switching member (110) and a fuse (120; 220) which is rated as a function of the current supplying the load, the static switching member comprising a controller (112) and the electrical cut-off member comprising a voltage peak limiter mounted in parallel on the fuse and a normally open switch (130) bypass connected with respect to the load the opening of the fuse being caused by a closure of the bypass connected switch (130) and the closure being controlled by the controller (112).

Classes IPC  ?

• H02H 3/05 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion Détails avec des moyens pour accroître la fiabilité, p. ex. dispositifs redondants
• H02H 3/08 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge

Abrégé

The invention concerns an assistance device (17) for a power generation system (11) of an aircraft, said system (11) comprising a generator (13), a regulator (14) and a contactor (15) comprising contacts and a control for opening/closing the contacts, controlled by said regulator (14) and arranged between the generator (13) and a distribution architecture (12), the assistance device being characterised in that it is connected to at least one power source (18) separate from the generator (13) and the regulator (14), and in that it comprises means for closing the contactor capable of connecting the power source (18) to the control of the contactor (15) in order to supply the current needed to close said contactor (15).

Classes IPC  ?

• H01H 47/04 - Circuits autres que ceux appropriés à une application particulière du relais et prévue pour obtenir une caractéristique de fonctionnement donnée ou pour assurer un courant d'excitation donné en vue de modifier le fonctionnement du relais en vue de retenir l'armature en position d'attraction, p. ex. avec un courant réduit ou interrompu
• H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif

Abrégé

The invention relates to a device for predicting faults in a harness formed by a plurality of cables gathered together, in particular electrical cables, comprising a protective sheath (10) intended to surround the harness, the sheath (10) comprising a plurality of braided elements (100), said braided elements (100) being braided together to form a tubular sheath, each braided element (100) comprising a plurality of longitudinal braiding strands (101) arranged to form a web, characterised in that the sheath (100) comprises at least one electrically conductive detection strand (102), said detection strand (102) being arranged with the braiding strands (101) of a braided element (100) so as to be incorporated into the web forming said braided element (100), the detection strand (102) being electrically insulated from the braiding strands (100) of said braided element (100).

Classes IPC  ?

• H02G 3/04 - Tubes ou conduits de protection, p. ex. échelles à câbles ou goulottes de câblage

Abrégé

The invention concerns an electrical connection member, characterised in that it is capable of detecting discontinuities in an electrical network and comprises a casing having at least three branches, each of the branches comprising, at the end of same, at least one terminal for electrical connection to a respective piece of equipment, and least one main conductor linking two terminals at the ends of two branches in the casing, at least one secondary conductor linking at least one terminal of the end of the third branch in the casing, and comprising an electrical coupler designed to inject an electrical test signal from the secondary conductor into the main conductor, and to transmit, to the secondary conductor, an electrical response signal generated by the reflection of the electrical test signal against a discontinuity encountered in the electrical network.

Classes IPC  ?

• G01R 27/06 - Mesure des coefficients de réflexionMesure du rapport d'ondes stationnaires
• G01R 31/00 - Dispositions pour tester les propriétés électriquesDispositions pour la localisation des pannes électriquesDispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs
• G01R 31/02 - Essai des appareils, des lignes ou des composants électriques pour y déceler la présence de courts-circuits, de discontinuités, de fuites ou de connexions incorrectes de lignes
• G01R 31/11 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux en utilisant des méthodes de réflexion d'impulsion

Abrégé

Electrical power distribution assembly for an aircraft comprising an electrical switching device (620) to be placed in a Karman fairing (K) of the aircraft.

Classes IPC  ?

• B64C 1/26 - Fixation de la voilure, des empennages ou des surfaces stabilisatrices
• B64C 7/00 - Structures ou carénages non prévus ailleurs
• B64C 7/02 - Fuseaux-moteurs
• B64D 41/00 - Installations génératrices de puissance pour servitudes auxiliaires

Abrégé

The invention relates to a method for manufacturing a strip of impregnated anodised aluminium, for use in a coil of an electrotechnical component, said coil including an interstitial material providing dielectric cohesion and insulation functions, said interstitial material being suitable for cross-linking, in other words for forming, by chemical reactions between the components thereof when subjected to certain physical conditions, molecular structures being organised in a lattice, the method comprising: a step of applying the precursor mixture of said interstitial material to the anodised aluminium; at least one step of cross-linking the precursor mixture in order to form said interstitial material on the strip of aluminium; characterised in that the anodised aluminium has not been subjected to the sealing of the pores of the alumina formed by anodisation prior to the application of the precursor mixture of said interstitial material.

Classes IPC  ?

• H01F 5/06 - Isolement des enroulements

Abrégé

The invention concerns a system for generating electrical energy (20) for an aircraft (10) comprising an aerodynamic fairing (21) enclosing at least one turbine (22) housed in the front portion (21a) of the fairing (21) and an electric energy generator (23) linked to said turbine. The front portion (21a) of the fairing (21) is equipped with air inlet means (26) that are movable between an open position in which the turbine (22) is exposed to the flow of air outside the fairing (21) and a closed position in which the turbine (22) is shielded inside the fairing (21). The invention helps to reduce the aerodynamic drag usually created by vortices present at the wing tip in the case of a standard wing with smooth edges during the take-off, ascent and cruising phases and to recover, during the descent phases, the kinetic and potential energy accumulated by the aircraft during the ascent and cruising phases.

Classes IPC  ?

• B64D 41/00 - Installations génératrices de puissance pour servitudes auxiliaires
• F03D 9/00 - Adaptations des mécanismes moteurs à vent pour une utilisation particulièreCombinaisons des mécanismes moteurs à vent avec les appareils qu’ils entrainentMécanismes moteurs à vent spécialement adaptés à l’installation dans des endroits particuliers
• F03D 1/04 - Mécanismes moteurs à vent avec axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor comportant des moyens fixes de guidage du vent, p. ex. par aubages ou canaux directeurs

Abrégé

The invention relates to a method of measuring the temperature of a coiled component comprising the injection of a known DC current into a gauge wire (1) made of resistive material, the resistance of the gauge wire varying with temperature according to a known law, the measurement of potential difference between the terminals (7a, 7b) of said gauge wire, and a step of calculation transforming the potential difference into a mean temperature of the gauge wire, said gauge wire (1) being wound inside the coil, and arranged as a series of "outbound" turns (5) and a series of "inbound" turns (6) associated pairwise with a geometry and a position that are substantially equal. It also relates to a component made in order to be able to implement this method and the measurement device as a whole.

Classes IPC  ?

• G01K 7/18 - Mesure de la température basée sur l'utilisation d'éléments électriques ou magnétiques directement sensibles à la chaleur utilisant des éléments résistifs l'élément étant une résistance linéaire, p. ex. un thermomètre à résistance de platine
• G01K 7/22 - Mesure de la température basée sur l'utilisation d'éléments électriques ou magnétiques directement sensibles à la chaleur utilisant des éléments résistifs l'élément étant une résistance non linéaire, p. ex. une thermistance
• G01K 13/00 - Thermomètres spécialement adaptés à des fins spécifiques

Abrégé

The invention concerns a DC-DC voltage converter characterised in that it comprises a main switch (K) formed by a normally-on switch element (J1) mounted in series with a normally-off switch element (M1) provided with a control circuit (G2), a load (Z1) in series with the main switch (K), the main switch and the load (Z1) being intended to be mounted at the terminals of a DC voltage source (E). A voltage source (Vp) that can be used to control (K) is obtained by connecting a main peak detector circuit (DC) at the mid-point of (K), at the point marked (A). The control circuit (G2) of the normally-off switch element (M1) can be powered with DC voltage (Vp), which makes the whole device self-powered. Application in particular to aeronautics.

Classes IPC  ?

• H02M 1/00 - Détails d'appareils pour transformation
• H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
• H02M 3/07 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des résistances ou des capacités, p. ex. diviseur de tension utilisant des capacités chargées et déchargées alternativement par des dispositifs à semi-conducteurs avec électrode de commande
• H02M 3/155 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
• H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
• H03K 17/10 - Modifications pour augmenter la tension commutée maximale admissible
• H03K 17/567 - Circuits caractérisés par l'utilisation d'au moins deux types de dispositifs à semi-conducteurs, p. ex. BIMOS, dispositifs composites tels que IGBT

Abrégé

The invention concerns a DC-DC voltage converter characterised in that it comprises a main switch (K) formed by a normally-on switch element (J1) mounted in series with a normally-off switch element (M1) provided with a control circuit (G2), a load (Z1) in series with the main switch (K), the main switch and the load (Z1) being intended to be mounted at the terminals of a DC voltage source (E). A voltage source (Vp) that can be used to control (K) is obtained by connecting a main peak detector circuit (DC) at the mid-point of (K), at the point marked (A). The control circuit (G2) of the normally-off switch element (M1) can be powered with DC voltage (Vp), which makes the whole device self-powered. Application in particular to aeronautics.

Classes IPC  ?

• H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
• H03K 17/567 - Circuits caractérisés par l'utilisation d'au moins deux types de dispositifs à semi-conducteurs, p. ex. BIMOS, dispositifs composites tels que IGBT
• H03K 17/10 - Modifications pour augmenter la tension commutée maximale admissible
• H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
• H02M 3/155 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
• H02M 1/00 - Détails d'appareils pour transformation

Abrégé

The invention relates to a method for converting alternating current into direct current, implemented by a conversion device that includes a three-phase bridge in which at least one arm consists of a first switch and a second switch mounted in series, the method including a step of adjusting the direct voltage output by the conversion device, characterised in that said method includes a transition step which precedes the adjustment step, the transition step including the formation of signals for controlling the first and second switches capable of limiting the amplitude of the inrush currents when switching the conversion device to the alternative network.

Classes IPC  ?

• H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
• H02M 7/217 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
• H02M 7/219 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs dans une configuration en pont

Abrégé

An electrical power supply device for an aircraft on the ground, the device including two electricity generators driven by an auxiliary power unit, wherein the first generator is connected by a selective connection/disconnection mechanism to an aircraft network and to an electrical taxiing network, and is configured to deliver either a first AC voltage to the aircraft network when it is connected to that network, or an AC voltage or a power to the taxiing network when it is connected to that network, and wherein the second generator is connected by the connection/disconnection mechanism to the aircraft network to deliver the first AC voltage to that network solely when the first generator is powering the taxiing network.

Classes IPC  ?

• B64D 41/00 - Installations génératrices de puissance pour servitudes auxiliaires
• B64C 25/40 - Trains d'atterrissage caractérisés par les éléments de contact avec le sol ou une surface analogue un mouvement rotatif étant communiqué aux éléments avant l'impact
• H02J 4/00 - Circuits pour réseaux principaux ou de distribution, la nature alternative ou continue du courant n'étant pas précisée

Abrégé

A method for monitoring a meshed current return network of an aircraft, the meshed network comprising at least two sub-networks electrically connected by a plurality of electrical junctions (1), the method comprising: a step of measuring a current intensity (IMES) in at least one electrical junction (1) in which there flows a nominal current for pre-defined flight conditions of the aircraft; a step of wirelessly transmitting the value of the measured current intensity (IMES); a step of receiving the measured current intensity (IMES); a step of comparing the measured current intensity (IMES) with a reference intensity of the nominal current pre-defined for said electrical junction (1) for said pre-defined flight conditions; and a step of diagnosing the health of the electrical junction (1) following the comparison step.

Classes IPC  ?

• G01R 31/02 - Essai des appareils, des lignes ou des composants électriques pour y déceler la présence de courts-circuits, de discontinuités, de fuites ou de connexions incorrectes de lignes
• G01R 31/00 - Dispositions pour tester les propriétés électriquesDispositions pour la localisation des pannes électriquesDispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs
• H02G 3/36 - Installations de câbles ou de lignes dans les murs, les sols ou les plafonds
• H01R 25/14 - Rails ou barres omnibus réalisés de telle sorte que les pièces complémentaires puissent leur être connectées en tout point de leur longueur
• B64C 1/00 - FuselagesCaractéristiques structurales communes aux fuselages, voilures, surfaces stabilisatrices ou organes apparentés
• H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
• G01R 15/14 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort

Abrégé

The invention concerns a coiled power device comprising a magnetic core (4) which has a first member (J1) and a second member (J2) which are mutually parallel, the device comprising a first coiling (B1) and a second coiling (B2), so as to generate mutual inductance between the coilings (B1, B2). The first coiling (B1) comprises a first winding (E1) of conducting wires wound about the first member (J1) and a second winding (E2) of conducting wires wound about the second member (J2). The second coiling (B2) comprises at least a third winding (E3) of conducting wires wound about the second member (J2) and a fourth winding (E4) of conducting wires wound about the first member (J1). The first winding (E1) and the fourth winding (E4) cover the same portion of the first member (J1) so as to limit the leak inductance from the coiled power device.

Classes IPC  ?

• H01F 27/38 - Organes de noyaux auxiliairesBobines ou enroulements auxiliaires
• H01F 38/02 - Adaptations de transformateurs ou d'inductances à des applications ou des fonctions spécifiques pour fonctionnement non linéaire

Abrégé

The invention relates to an emergency power supply device (3) for an aircraft (1), characterised in that it comprises at least one air intake duct (5) designed to receive a relative airflow V (during the flight of the aircraft), a turbine (25) arranged in said duct (5), to be driven by the relative airflow V, and at least one device (31) for generating power for the aircraft, said turbine (25) being connected to said power-generating device (31) in order to produce power for the aircraft at least under flight conditions thereof.

Classes IPC  ?

• B64D 41/00 - Installations génératrices de puissance pour servitudes auxiliaires

Abrégé

The invention aims to optimise all of the engine power available on a helicopter provided with an auxiliary engine by allowing that auxiliary engine to provide non-propulsive and/or propulsive energy during flight. For this purpose, this auxiliary engine is coupled in such a way as to be able to directly contribute to the supply of propulsive mechanical or electrical energy and non-propulsive electrical energy of the aircraft. An example configuration architecture comprises an onboard electrical network (2), two main engines (5a, 5b) and an energy conversion system for converting mechanical/electrical energy (6, 6a, 6b, 7) between a main gearbox BTP (40) transferring power to the propulsion members (4, 41) and means for receiving electrical energy comprising the onboard network (2) and a power electronics system (9) linked with starters (8) of the main engines (5a, 5b). The configuration also comprises an auxiliary power engine (3) supplying electrical energy to the means for receiving electrical energy (2, 9) via the energy conversion system (6, 6a, 6b, 7) and mechanical coupling means (8a, 11a to 11d) between the auxiliary engine (3, 0, 30) and at least one propulsion means (4, 41).

Classes IPC  ?

• B64D 41/00 - Installations génératrices de puissance pour servitudes auxiliaires
• B64C 27/04 - Hélicoptères

Abrégé

The invention relates to a method and device for monitoring an electrical network, comprising: means (51a-52b) for detecting electrical signals (S1a, S1b) and complementary signals (S2a, S2b) generated in the electrical network (3), the complementary signals (S2a, S2b) having a different physical nature than that of the electrical signals (S1a, S1b); a means (7) for processing said electrical signals in order to define a first time reference (t1) representative of a time of detection of the electrical signals transmitted during a fault event (E1, E2) that occurred in the electrical network; a means (7) for processing said complementary signals in order to define a second time reference (t2) representative of a time of detection of the complementary signals transmitted during said fault event that occurred in the electrical network; and a processing means for spatially locating said fault event in the electrical network in accordance with said first and second time references (t1, t2).

Classes IPC  ?

• G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux

Abrégé

The invention relates to a three-phase/two-phase transformer (10) comprising a three-phase part (11) and a two-phase part (12) which can rotate about an axis A in relation to one another, the three-phase part (11) comprising a first body made from ferromagnetic material and three-phase windings (24, 25, 26, 27), the two-phase part (12) comprising a second body made from ferromagnetic material and two-phase windings (28, 29, 30, 31), the second body defining a first annular slot (34) of axis A and a second annular slot (35) of axis A, the two-phase windings comprising a first toroidal winding (29) of axis A in the first slot (34), a second toroidal winding (28) of axis A in the first slot (34), a third toroidal winding (30) of axis A in the second slot (35) and a fourth toroidal winding (31) of axis A in the second slot (35), the first winding (29) and the fourth winding (31) being connected in series, and the second winding (28) and the third winding (30) being connected in series.

Classes IPC  ?

• H01F 38/18 - Transformateurs rotatifs

Abrégé

The invention relates to a three-phase transformer (10) comprising a primary part (11; 12) and a secondary part (12; 11), the primary part (11) comprising a first body made from ferromagnetic material and primary windings (24, 25, 26, 27), the secondary part (12) comprising a second body made from ferromagnetic material and secondary windings (28, 29, 30, 31), the first body defining a first annular slot (22) of axis A and a second annular slot (23) of axis A, the primary windings comprising a first toroidal winding (24) of axis A in the first slot (22), a second toroidal winding (25) of axis A in the first slot (22), a third toroidal winding (26) of axis A in the second slot (23) and a fourth toroidal winding (27) of axis A in the second slot (23), the second winding (25) and the third winding (26; 226) being connected in series.

Classes IPC  ?

• H01F 38/18 - Transformateurs rotatifs
• H01F 30/12 - Transformateurs diphasés, triphasés ou polyphasés

Abrégé

The invention relates to a three-phase/two-phase transformer (10) comprising a three-phase part (11) and a two-phase part (12) which can rotate about an axis A in relation to one another, the three-phase part (11) comprising a first body made from ferromagnetic material and three-phase windings (24, 25, 26, 27), the two-phase part (12) comprising a second body made from ferromagnetic material and two-phase windings (28, 29, 30, 31), the second body defining a first annular slot (34) of axis A and a second annular slot (35) of axis A, the two-phase windings comprising a first toroidal winding (29) of axis A in the first slot (34), a second toroidal winding (28) of axis A in the first slot (34), a third toroidal winding (30) of axis A in the second slot (35) and a fourth toroidal winding (31) of axis A in the second slot (35), the first winding (29) and the fourth winding (31) being connected in series, and the second winding (28) and the third winding (30) being connected in series.

Classes IPC  ?

• H01F 38/18 - Transformateurs rotatifs

Abrégé

The invention concerns a rotating three-phase transformer (10) with linked and free flux comprising a first portion (11) and a second portion (12) mobile in rotation about axis A relative to each other. A first body delimits a first annular slot (19) of axis A, a second annular slot (20) of axis A, a third annular slot (21) of axis A and a fourth annular slot (22) of axis A. The windings of the first portion (11) comprise a first toric winding (34) of axis A in the first slot (19), a second toric winding (35) of axis A in the second slot (20), a third toric winding (36) of axis A in the second slot (20), a fourth toric winding (37) of axis A in the third slot (21), a fifth toric winding (38) of axis A in the third slot (21) and a sixth toric winding (39) of axis A in the fourth slot (22).

Classes IPC  ?

• B63B 21/50 - Dispositifs d'ancrage pour navires spéciaux, p. ex. pour plates-formes flottantes de forage ou dragues
• H01F 30/12 - Transformateurs diphasés, triphasés ou polyphasés
• H01F 38/18 - Transformateurs rotatifs
• H01F 3/02 - Noyaux, culasses ou induits en feuilles

Abrégé

System for control and electric power supply of at least one helicopter motor/generator comprising a first DC/AC converter (30) intended to provide selectively, according to the respective positions of contactors (320, 322, 324, 326, 328, 330, 332) of a connection matrix (32) which are actuated from an electronic control circuit (34), an AC power supply to at least one motor/generator, this first DC/AC converter being powered with DC voltage by a voltage supply device delivering a DC voltage Vdc and formed either by a circuit (36) for rectifying an AC voltage delivered via a contactor (22) by a starter/generator (18) of an APU (16) or by a DC/DC voltage boosting converter (38) powered from a battery (20) via a contactor (24), the connection matrix furthermore comprising a contactor (328) for placing the first DC/AC converter in parallel with the second DC/AC converter so as to allow, once one at least of these motors/generators has been started, an injection of additional power from the starter/generator of the APU.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 5/00 - Circuits pour le transfert d'énergie électrique entre réseaux à courant alternatif et réseaux à courant continu
• B64D 31/02 - Dispositifs amorçant la mise en œuvre

Abrégé

The present invention relates to a turbofan engine comprising at least one fluid circuit and one air/fluid exchanger (40) by means of which said fluid is cooled with air external to the turbofan and a boiler (3) that splits the air stream downstream of the fan into a primary stream and a secondary stream, characterized in that the heat exchanger (40) is associated with a thermoelectric generator (46) comprising a first heat exchange surface (47) and a second heat exchange surface (48) in which the first surface is in thermal contact with said air stream and the second surface is in thermal contact with the fluid that is to be cooled in the exchanger (40).

Classes IPC  ?

• F02C 7/04 - Entrées d'air pour ensembles fonctionnels de turbines à gaz ou de propulsion par réaction
• F02C 7/14 - Refroidissement des ensembles fonctionnels des fluides dans l'ensemble fonctionnel
• F02K 3/115 - Chauffage du flux dérivé à l'aide d'un échange indirect de chaleur

Abrégé

The invention seeks to achieve a repeatable, uniform and reliable connection both for intermediate and for terminal connections of a wiring loom in the form of a layer of conductors. To do this, the invention envisages simultaneously crimping the conductors into the connectors by applying a continuous and uniform pressure in a crimping zone. In one embodiment, the crimping according to the invention is performed by a tool that has two shells (21s, 21i), each shell having a main wall (P1) forming an internal face (F1) equipped with transverse ribs (N1, N2, N3). Each shell (21s, 21i) also has end edges (B1) folded over at right angles to the walls (P1) so as to define an internal space (E1). A connector (32) for uninsulated conductors (51) arranged perpendicular to the ribs (N1, N2, N3) is introduced into this space (E1) to form transverse grooves by compressing (Ps) the ribs (N1, N2, N3) onto the walls (32s, 32i) of the connector (32). Application to current return networks in the passenger cabins of composite-skinned airplanes.

Classes IPC  ?

• H01R 43/048 - Appareils ou procédés de sertissage
• H01R 12/69 - Connexions fixes pour circuits imprimés flexibles, câbles plats ou à rubans ou structures similaires caractérisées par les bornes bornes déformables, p. ex. bornes à sertir

Abrégé

The invention seeks to provide bonded (equipotential) connections between the various parts of a current return network. To do this, the invention provides a wiring loom with a layer of conductors coated in a fluidtight jacket. Such a wiring loom (30) is able to connect structural metallic components in a volume available between a protective structure and a transverse frame made of carbon composite material or a cabin lining. In one embodiment, it comprises conductors (51) laid in parallel to form a flat and flexible layer (50), multipoint modular end connectors (32) and multipoint modular intermediate connectors (34), a protective jacket made up of an external jacket (60) which in portions (60T) covers the loom and a common jacket (62) which in portions (62T) covers the edges (32b, 34b; 60b) of the connectors (32, 34) and of the outer jacket (60). Openings (54, 56) are formed in the connectors (32, 34) for fixing means. The conductors (51) are fixed individually into the connectors (32, 34) and are coated with sealant inside a heat-shrink sleeve (46) in the region of the connectors (32, 34).

Classes IPC  ?

• H02G 3/30 - Installations de câbles ou de lignes sur les murs, les sols ou les plafonds
• H02G 3/32 - Installations de câbles ou de lignes sur les murs, les sols ou les plafonds utilisant des colliers de fixation
• B60R 16/02 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques
• H01B 7/00 - Conducteurs ou câbles isolés caractérisés par la forme
• H01R 25/16 - Rails ou barres omnibus pourvus de plusieurs points de connexion pour pièces complémentaires
• B64C 1/40 - Insonorisation ou isolation calorifique

Abrégé

Device (210) for supplying electrical power to an aircraft on the ground, comprising two electric generator (216, 218) driven by an auxiliary power unit (220), characterized in that the first generator is connected by connection/disconnection means (232) to an aircraft network (212) and to an electric taxiing network (214), so as to supply either an AC voltage Vac2 to the aircraft network when it is connected to this network, or an AC voltage Vac1 or a power P to the taxiing network when it is connected to this network, and in that the second generator is connected by connection/disconnection means (232) to the aircraft or taxiing networks in order to supply the AC voltage Vac2 to one of these networks.

Classes IPC  ?

• B64C 25/40 - Trains d'atterrissage caractérisés par les éléments de contact avec le sol ou une surface analogue un mouvement rotatif étant communiqué aux éléments avant l'impact
• B64D 41/00 - Installations génératrices de puissance pour servitudes auxiliaires

Abrégé

The invention relates to a method of controlling a permanent-magnet synchronous machine (3) comprising a stator and a rotor. The method comprises a step of determining an estimated position ($) of the rotor, a step of determining a second direct voltage setpoint (?d2*) which is alternately equal to a first direct voltage setpoint (?d1*) or equal to the first direct voltage setpoint (?d1*) plus a predetermined periodic signal (G). The step of determining an estimated position ($) of the rotor comprises a step of determining a coupling term (???), a step of determining a speed of rotation of the rotor (O5) as a function of said coupling term (???), and a step of determining the estimated position ($) of the rotor by integrating the speed of rotation of the rotor (O5).

Classes IPC  ?

• H02P 6/18 - Dispositions de circuits pour détecter la position sans éléments séparés pour détecter la position
• H02P 21/18 - Estimation de la position ou de la vitesse

Abrégé

The aim of the invention is to produce electrically efficient equipotential connections in terms of resistivity between portions of a current return network of a non-conductive architecture, such as an airplane fuselage. The approach adopted according to the invention is to impart an equipotential bonding function to an aluminum cable having a large cross-section, said bond being electrically connected, via direct contact, to as many pieces of equipment as is physically possible. According to one embodiment, an electrical connection assembly of an aircraft fuselage (100) having a composite skin comprises on-line shunt connections (2) for electrically interconnecting an aluminum alloy cable (1), having a large cross-section and serving as an equipotential bond, to brackets (113, 141) for primary current return networks and to brackets (111) for electrical devices via connections (202). Each on-line shunt connection (2) comprises a central sleeve (2m) for directly electrically contacting the cable (1), end portions for being assembled to the cable (1) by crimping, and an attachment means (2p) for attaching to the bracket (111) of the equipment. Each of the ends of the sleeve (2m) have seal accommodated therein. Each interconnection has two sealed areas, which surround a central contact area formed by means of window-stripping.

Classes IPC  ?

• H02G 3/00 - Installations de câbles ou de lignes électriques ou de leurs tubes de protection dans ou sur des immeubles, des structures équivalentes ou des véhicules
• H01R 4/20 - Connexions conductrices de l'électricité entre plusieurs organes conducteurs en contact direct, c.-à-d. se touchant l'un l'autreMoyens pour réaliser ou maintenir de tels contactsConnexions conductrices de l'électricité ayant plusieurs emplacements espacés de connexion pour les conducteurs et utilisant des organes de contact pénétrant dans l'isolation effectuées uniquement par torsion, enroulage, pliage, sertissage ou autre déformation permanente par sertissage en utilisant un manchon de sertissage
• H01R 4/62 - Connexions entre des conducteurs constitués de matériaux différentsConnexions entre ou avec des conducteurs en aluminium avec ou sans âme en acier

Abrégé

The invention relates to an electronic device with cooling of a heat source (32) by a liquid metal spreader, this device comprising: at least one heat source; at least one spreader (30) drilled with at least one channel for flowing a liquid metal, forming a loop passing under a heat source (32); at least one heat sink (33); and at least one electromagnetic pump (31) for making the liquid metal (34) move in said at least one channel so that the liquid metal absorbs the heat given off by a heat source and transports it to be evacuated by a heat sink, in which each spreader comprises at least two plates made of an electrical insulator placed on either side of at least one strip made of a deformable material.

Classes IPC  ?

• H01L 23/473 - Dispositions pour le refroidissement, le chauffage, la ventilation ou la compensation de la température impliquant le transfert de chaleur par des fluides en circulation par une circulation de liquides

Abrégé

Method of stabilizing a DC electric network, this network comprising a DC voltage source (11) powering electric loads (12,18, 24) which are connected in parallel across the terminals of the voltage source (11) and which are each intended to receive a setpoint of the current or the power, characterized in that the network is stabilized by regulating the setpoints applied to the loads (12,18, 24) by means of a virtual stabilization impedance generated across the terminals of each load (12,18, 24), these virtual impedances being dimensioned so as to stabilize the network in various desired operating points and in various given configurations of the network comprising the state where at least one load is inactive or faulty and the state where the stabilization of a load is inactive, each virtual impedance being generated by means of a nonlinear regulating loop acting on the setpoint of the corresponding load.

Classes IPC  ?

• H02J 1/14 - Équilibrage de la charge dans un réseau
• H02J 3/16 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par réglage de puissance réactive
• H02J 3/24 - Dispositions pour empêcher ou réduire les oscillations de puissance dans les réseaux

Abrégé

The invention relates to a device (210) for supplying an aircraft on the ground with electricity, comprising two electric generators (216, 218) driven by an auxiliary power unit (220), characterized in that the first generator is connected by connection/disconnection means (232) to an aircraft network (212) and to an electrical taxiing network (214), so as to either provide an AC voltage Vac2 to the aircraft network when it is connected to this network, or to provide an AC voltage Vac1 or power P to the taxiing network when it is connected to this network, and in that the second generator is connected by connection/disconnection means (232) to the aircraft network (212) so as to provide this network with an AC voltage Vac2 only when the first generator is supplying the taxiing network.

Classes IPC  ?

• B64C 25/40 - Trains d'atterrissage caractérisés par les éléments de contact avec le sol ou une surface analogue un mouvement rotatif étant communiqué aux éléments avant l'impact
• B64D 41/00 - Installations génératrices de puissance pour servitudes auxiliaires

Abrégé

The invention relates to a module for converting voltage between a high-voltage electrical network of an aircraft, in particular a high-voltage direct current network, and at least one energy storage element of said aircraft, in particular a supercapacitor, said conversion module being characterized in that same is capable of reversibly converting between a DC voltage E of the high-voltage electrical network of the aircraft and a DC voltage Vs of the energy storage element of the aircraft, said DC voltage Vs of the energy storage element of the aircraft being floating relative to the DC voltage E of the high-voltage electrical network of the aircraft and centered relative to the mass of the airplane, the module including an input module including two filters each capable of receiving a DC voltage E/2, a first arm and a second arm including switches, and means for controlling said switches, the control means operating per cycle of a switching period and being capable of controlling at least one first switch and at least one second switch identically but offset by a half-period, whereby the first switch is open when the second switch is closed and vice versa.

Classes IPC  ?

• H02J 7/34 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p. ex. batterie tampon
• H02M 3/135 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type thyratron ou thyristor exigeant des moyens d'extinction utilisant uniquement des dispositifs à semi-conducteurs

Abrégé

The invention relates to a circuit (1) for supplying electric power to an aircraft, including a power generator intended to be rotated by the engine (2) of the aircraft in order to power electrical equipment (7) of the aircraft engine, characterised in that the power generator includes an asynchronous machine (5) that is connected to an excitation device (8), the asynchronous machine (5) including a rotor that can be rotated by the engine (2) and a stator that is connected to said electrical equipment (7), the excitation device (8) being suitable for circulating a reactive current in said stator.

Classes IPC  ?

• H02P 9/46 - Commande d'une génératrice asynchrone par variation d'une capacité

Abrégé

The invention relates to an aircraft electrical power supply circuit including: an power distribution network (17), onboard the aircraft, for electrical devices (5b) located in an engine of the aircraft or near said engine; and a power supply generator (27) built into the engine of the aircraft so as to supply AC voltage power to a de-icing or anti-icing system (5a). Said aircraft power supply circuit is characterized in that the power supply generator (27) is connected to a thrust reverser electromechanical actuator (5c) by means of a rectifier (1) for supplying DC voltage power to said actuator.

Classes IPC  ?

• B64D 41/00 - Installations génératrices de puissance pour servitudes auxiliaires

Abrégé

The invention relates to a polyphase electrical machine (30), which is controlled by means of at least two inverters in parallel (101, 102), wherein each inverter has branches (101a, 101b, 101c, 102a, 102b, 102c), in a number equal to the number of phases of the machine, and is controlled by pulse width modulation (PWM). In response to the detection of a defective inverter branch (102a), the latter is isolated, and the phase in question is supplied with power by the or each other corresponding inverter branch (101a). The control by PWM is modified so as to make the power switches of said or each other branch (101a) consecutively conductive without switching when, in absolute value form, the strength of the current for the phase in question (1a) is greater than or equal to a threshold between 80% and 120% of (n-1) Imax/n, where n is the number of inverters and Imax is the maximum strength of the phase current. It is thus possible to maintain generation of substantially sine wave voltage over each phase while preventing overrated voltage in the power switches so that, in the event of a defect, said switches can switch currents with higher amplitudes than during normal operation.

Classes IPC  ?

• F02N 11/00 - Démarrage des moteurs au moyen de moteurs électriques
• H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions

Abrégé

The invention relates to the mutualization of the electrical converter for starting an aircraft and moving the latter on the ground. According to the invention, a single electrical converter (14) is capable of being coupled to the electrical starter/generator (DG1) combined with a turbojet engine (M1) or to the electric motor (17) of the landing gear for moving on the ground via a power distribution unit (12).

Classes IPC  ?

• B64C 25/40 - Trains d'atterrissage caractérisés par les éléments de contact avec le sol ou une surface analogue un mouvement rotatif étant communiqué aux éléments avant l'impact
• H02J 4/00 - Circuits pour réseaux principaux ou de distribution, la nature alternative ou continue du courant n'étant pas précisée

Abrégé

The invention relates to an electrical system for starting up an engine (18, 20, 22), including: an AC/DC rectifier (12), supplied with power by an AC power network (14) in order to generate a first DC voltage Vdc; a DC/AC conversion module (12) for generating, on the basis of said first DC voltage Vdc, an AC voltage for starting up the engine, comprising n phase k inverters arrange in parallel (k>1) and generating power at least two times less than a maximum power Pmax that is required to start up the engine. The two power supply lines of each inverter are connected to an electronic protection device that receives the first DC voltage Vdc, and the n outputs of each inverter generate the AC voltage for starting up the engine by means of n inductors in series.

Classes IPC  ?

• B64D 31/02 - Dispositifs amorçant la mise en œuvre
• H02H 7/122 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour convertisseursCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour redresseurs pour convertisseurs ou redresseurs statiques pour onduleurs, c.-à-d. convertisseurs de courant continu en courant alternatif
• H02M 7/493 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande les convertisseurs statiques étant agencés pour le fonctionnement en parallèle
• H02P 1/00 - Dispositions de démarrage de moteurs électriques ou de convertisseurs dynamo-électriques

Abrégé

The invention relates to an electric brake system for an electromechanical machine (M) connected to the output terminals of an inverter (3), the input terminals of which are supplied by a DC voltage source (1), the system comprising an electrical circuit connected between the input terminals of the inverter and comprising, connected in series: means for dissipating the electrical energy returned by the electromechanical machine to the input terminals of the inverter during a braking phase of the electromechanical machine; switching means (T) intended to close said electrical circuit during a braking phase of the electromechanical machine and to open said electrical circuit in the absence of a braking phase of the electromechanical machine. The electrical energy dissipation means comprise an inductor (Lf) wound around a magnetic circuit (4).

Classes IPC  ?

• H02P 3/18 - Dispositions pour l'arrêt ou le ralentissement de moteurs, génératrices électriques ou de convertisseurs dynamo-électriques pour arrêter ou ralentir individuellement un moteur dynamo-électrique ou un convertisseur dynamo-électrique pour arrêter ou ralentir un moteur à courant alternatif

Abrégé

The invention concerns an electrical supply circuit in an aircraft, including an electrical distribution network 17 onboard the aircraft supplying electrical equipment 5b located in an aircraft engine or in the surroundings of the said engine, the circuit comprising a supply generator 27 incorporated into the aircraft engine to supply a de-icing circuit 5a. The electrical equipment comprise nacelle loads 5b connected to a continuous electrical voltage distribution bus 35 connected to a voltage conversion circuit 34 supplied by the network 17. The de-icing circuit 5a comprises at least one electrical resistance 61 intended to dissipate the electrical energy eventually sent back to the continuous electrical voltage distribution bus 35 by at least a part of the nacelle loads.

Classes IPC  ?

• B64D 15/12 - Dégivrage ou antigivre des surfaces externes des aéronefs par chauffage électrique
• B64D 41/00 - Installations génératrices de puissance pour servitudes auxiliaires
• H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines

Abrégé

A power and control system for electrical equipment of an aircraft engine or its environment includes at least one direct current voltage supply bus (40, 40'), at least one assembly (50) of supply modules associated to a respective group (60) of electrical equipment, the modules (52) of the assembly being greater in number than the minimum necessary to activate the electrical equipment (62) of the group so as to provide at least one emergency module (52s), each module including a voltage converter (53) to supply alternating current at the output of the module from the direct current of the supply bus, and a switching circuit (70) inserted between the outputs of the modules of the module assembly and the equipment of the equipment group. The modules (52) and the switching circuit (70) are controlled to activate each piece of equipment (62) of the equipment group by connecting it to at least one of the modules (52) with an emergency module put into service should one of the other modules fail.

Classes IPC  ?

• B64D 33/00 - Aménagement sur les aéronefs des éléments ou des auxiliaires des ensembles fonctionnels de propulsion, non prévu ailleurs
• H02P 31/00 - Dispositions pour la régulation ou la commande de moteurs électriques non prévues dans les groupes , ou
• H05K 10/00 - Dispositions pour améliorer la sécurité de fonctionnement d'un équipement électronique, p. ex. en prévoyant une unité de réserve similaire

Abrégé

The electrical power supply for an aircraft comprises: - at least one first electrical generator (10, 10') driven by an aircraft engine, an onboard aircraft power grid (22) receiving the voltage generated by the first generator, - at least one second generator (26, 26') driven by the engine, and an electrical engine network (28), separate from the onboard aircraft power grid (22) for powering the engine equipment or its environment, the network engine (28) comprising: - at least one distribution bus (40, 40') for continuous electrical voltage for the electrical equipment and a power circuit (30) with a first input connected to the onboard aircraft power grid (22), a second input connected to the second generator (26, 26') for receiving the voltage supplied thereby, a voltage converter connected to the second input and a switching circuit to deliver voltage supplied from that received on the first input, or supplied by the converter depending on the amplitude of the voltage supplied by the second electrical generator, onto the electrical energy distribution bus (40, 40').

Classes IPC  ?

• B64D 41/00 - Installations génératrices de puissance pour servitudes auxiliaires

Abrégé

Turbomachine such as the turbine engine of an airplane including an electrical starter-generator, capable of being mounted and dismounted by axial translation in an upstream enclosure of the turbomachine, between the low pressure compressor and the high pressure compressor, and connected to electric cables which extend inside structural arms of the intermediary casing of the turbomachine.

Classes IPC  ?

• F01D 15/10 - Adaptations pour la commande des générateurs électriques ou combinaisons avec ceux-ci
• F02C 7/268 - Entraînement du rotor pour le démarrage
• H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines

Abrégé

The invention concerns the cabling in a connection box, using a printed circuit board which includes N input terminals on one of its edges, N output terminals on its opposite edge and between these two edges, a multitude of levels of elementary connection devices with two inputs and two outputs, the two inputs of one element, electrically connected to the two outputs of the said device, on the one hand with two direct connections and on the other hand, with two cross-linked junction boxes, the inputs of the first level devices being directly connected electrically to the input terminals, the outputs of the last level devices being directly connected electrically to the output terminals and between two successive levels, the outputs of the devices of the lower level are electrically connected the inputs of the devices of the next highest level. To configure the cabling, either the direct connections or the cross-linked connections of each device are cut.

Classes IPC  ?

• H01R 9/22 - Socles, p. ex. barrette, bloc, panneau
• H01R 12/71 - Dispositifs de couplage pour circuits imprimés rigides ou structures similaires