Abstract: The application relates to a method for controlling a microgrid (10) comprising the steps of: maintaining a switching device (60) connecting two busbars (30, 40) of the microgrid (10) and a circuit breaker (20) connecting the microgrid (10) to a utility grid (100) closed, the microgrid (10) being operated in a grid connected mode; measuring (202) a voltage present in the microgrid (10); determining (205) if the measured voltage corresponds to a loss of voltage or a fault in the microgrid (10); and if a the loss of voltage or fault is detected in the microgrid (10), opening (210) the switching device (60), the critical loads being supplied by the battery energy storage system (50) and the circuit breaker (20) remaining closed during (215) at least a fault ride through period.

Abstract: The application relates to a method for protecting a microgrid from a voltage drop or sag occurring in a main grid connected to said microgrid, the method comprising the following steps: a. supplying (105) power to the microgrid through the main grid; b. ascertaining that the voltage drop or sag is occurring in the main grid by executing the following steps: i. measuring (110) an instantaneous output voltage; ii. comparing (130) the measured instantaneous output voltage with a reference instantaneous output voltage; iii. Incrementing (140) a counter when the measured instantaneous output voltage differs from the reference instantaneous output voltage by more than a voltage threshold; and iv. ascertaining (150) that the voltage drop or sag is occurring in the main grid when the counter holds a value that exceeds a counter threshold; and c. disconnecting the microgrid from the main grid when the voltage drop or sag occurring in the main grid has been ascertained.

Abstract: The invention relates to a system and an implementation method for pumping a fluid, the system comprising: a pump comprising a flexible membrane which has two opposing surfaces, the membrane comprising a spatially rotating permanent magnetization structure, a rigid support means to which at least a portion of the lower surface of the membrane is attached, a source of a magnetic field which is capable of generating a magnetic drive field at the location of the membrane, the magnetic drive field having a substantially homogeneous orientation.

Abstract: The present disclosure relates to phase-change-based material switch formed on a support substrate, and including: a region made of said phase-change material coupling first and second conduction electrodes of the switch; and a waveguide interposed between the support substrate and the region made of said phase-change material, and including a center region made of a first material having a first optical index surrounded by a peripheral region made of a second material having a second optical index less than the first optical index.

Abstract: 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.

Abstract: Collimation device for an X-ray detection system, the collimation device comprising: a collimator comprising a substantially planar support made of a material with partial or zero radiotransparency, the support being rotatably movable about an axis of rotation (?) which passes through the support and which is perpendicular to a first face of the support which acts as an X-ray plane of incidence referred to as the main plane of the support (P), the support (D) being provided on the first face with a slit which is completely transparent to X-rays and which is configured to generate an X-ray flow when the collimator is exposed to an X-ray source, the slit extending longitudinally in the main plane of the support along an axis located at a non-zero distance (d) from the axis of rotation (?), the slit extending through the entire thickness of the support.

Abstract: 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.

Abstract: A nanowire forming method, including the forming of a DNA origami having through openings, and the forming in the through openings of portions forming all or part of the nanowires.

Abstract: A regulation process of an electrical distribution network that comprises a main power source, among one or more electrical sources, configured to impose on the network the voltage and frequency of a power circulating on the network to which one or more loads are connected. The process includes, in the event of a variation of one of the frequency or the voltage detected on the network, during a primary regulation, one adjustment step by the main source of the other between the frequency and the voltage, to maintain constant the ratio voltage/frequency.

Abstract: The present disclosure relates to a method for detecting an electric arc in an electrical system (100), comprising the following steps: a) acquiring a signal (104) coming from at least one sensor (102) detecting acoustic waves in the system (100); b) calculating, using an electronic processing device (106), a first value representative of the error between the signal and a first projection of the signal in a first representation space defined by a first dictionary matrix; b) calculating, using the electronic processing device (106), a second value representative of the error between the signal and a second projection of the signal in a second representation space defined by a second dictionary matrix; and d) determining, from the first and second values, whether an electric arc has been produced in the system.

Abstract: Method for controlling a generator comprising an inverter and an electrical energy source, the generator being configured to deliver output electrical values to an electrical distribution grid, the inverter being controlled by a control law, the control law comprising a set of fixed values of parameters for modelling the functioning of a synchronous virtual generator so that the control law is configured to determine at least one target output value that must be delivered by the generator to the electrical distribution grid.

Abstract: 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.

Abstract: A regulation process of an electrical distribution network that comprises a main power source, among one or more electrical sources, configured to impose on the network the voltage and frequency of a power circulating on the network to which one or more loads are connected. The process includes, in the event of a variation of one of the frequency or the voltage detected on the network, during a primary regulation, one adjustment step by the main source of the other between the frequency and the voltage, to maintain constant the ratio voltage/frequency.

Abstract: The invention relates to a method of protecting a network comprising: electrical lines (120, 130, 230); three interconnection nodes (10, 20, 30) with: a high-voltage interface with controlled switches; a local network interface; local networks for each respective node (10, 20, 30), comprising: an MMC converter (16, 26, 36); a protection circuit with, in parallel, a first controlled switch (14) and a first limiter (15), a second controlled switch (12) and a second limiter (13). The method comprising the steps for: maintaining the said first switches (14) closed and the said second switches (12) open; measuring voltage and current on the 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.

Abstract: The invention concerns an airborne device comprising at least three supporting wings and a linking device, the wings being linked to each other by first flexible cables, each wing being further linked to the linking device by a second flexible cable, the linking device being linked to a third flexible cable intended to be linked to a base, the first second, and third cables being tensioned when the airborne device is carried in the wind.

Abstract: A method for capturing a molecule in a sample, comprising mixing the sample with magnetic particles. Each of the particles being coupled with an element capable of binding selectively to the molecule for capture, so as to form at least one complex comprising a magnetic particle. The element and the molecule bound to the element, immobilizing the at least one complex on a support comprising ordered magnetic field microsources.

Abstract: An electricity generator including a first converter suitable for converting a variation of an energy to be harvested into a corresponding excess of electrical charges. The generator includes a circuit for collecting the excess of electrical charges, the circuit has a first controllable mechanical switch, and a control device for the first switch designed to control the switching of the switch to its closed position when the excess of electrical charges exceeds a first predetermined threshold. The switch is a magnetic switch and the control device comprises a variable magnetic field source which controls the switching of the first switch to its closed position only at the time when the excess of electrical charges exceeds the first predetermined threshold.

Abstract: A power generator including a converter with an electromechnical transducer and a magnetostrictive layer to convert a variation of a magnetic field into a mechanical deformation exerted on the transducer. There is a magnetic field source including a group of several permanent magnets. One of the group or the converter is movable, between first and second positions. The group has several first permanent magnets, one having an aspect ratio of between 1/10 and ten and most of the field lines that loop back do not pass through another first permanent magnet. The first permanent magnets are arranged such that the magnetic field induced inside the magnetostrictive material in the first position by one of the first permanent magnets is parallel to and in the direction opposite to the magnetic field induced at the same instant in the magnetostrictive material by the next first permanent.

Abstract: The present invention relates to a set of security documents. Each security document within the set having an optical code, notably a barcode, which is neither connected nor coupled to any electronic chip that may be carried by the security document. The optical code on each security document within the set encodes the same information for the same optical reader. Each security document having different respective electromagnetic signature, these signatures being unique to each of the security documents.

Abstract: The invention relates to a voltage converter (100), including: a plurality of two-way conversion cells (303), each cell comprising a primary circuit (307, Wp), and a secondary circuit (308, Ws) that is insulated from the primary circuit, wherein each circuit can be separately activated in order to supply an output voltage from the converter; and at least one control circuit (306) configured to, in a first operating mode, control the activated cells in order to transfer electrical energy from the primary circuit to the secondary circuit, and control the inactivated cells in order to transfer electrical energy from the secondary circuit to the primary circuit.