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226
resultados
Última actualización
28/06/2025 [07:25:00]
Resumen de: FR3157733A1
La présente invention concerne un dispositif de surveillance (1) de la propreté d’une surface (2), comprenant une source d’alimentation (3) électrique configuré pour être connectée à la surface (2) afin de mettre sous tension la surface (2) en plusieurs points, un système de mesure de la tension et du courant (4), une station météorologique (6) configurée pour acquérir des données environnementales de la surface (2), le dispositif de surveillance (1) comprenant une unité de contrôle (5) configurée pour - commander la source d’alimentation (3) selon un profil d’alimentation, - déterminer à partir du courant et de la tension mesurés une impédance d’isolement induite par la surface (2), - déterminer un niveau de salissure de la surface (2) par rapport à un état initial « propre » de la surface (2) à partir de la mesure d’impédance et des données d’environnement issues d’une station météorologique (6). Figure pour l’abrégé : Fig. 1
Resumen de: WO2025130721A1
Provided in the present application is a photovoltaic energy storage system, comprising: an inverter, an energy storage device and a voltage compensation assembly. The inverter comprises a direct-current conversion circuit, a direct-current bus, an inverter circuit and a first switch, wherein a positive input end of the direct-current conversion circuit is used for connecting to a positive electrode of a photovoltaic assembly, and a negative input end of the direct-current conversion circuit is used for connecting to a negative electrode of the photovoltaic assembly; and the first switch is disposed between a connection point of the voltage compensation assembly and the negative input end of the direct-current conversion circuit and a negative electrode of the direct-current bus, and is used for controlling connection and disconnection between the voltage compensation assembly and the negative electrode of the direct-current bus. The photovoltaic energy storage system further comprises a controller, which is used for, when an output voltage and/or an output current of the photovoltaic assembly is less than or equal to a threshold value, controlling the first switch to be disconnected and controlling the voltage compensation assembly to operate, so that the voltage of the negative electrode of the photovoltaic assembly relative to the ground is raised to a zero voltage or a positive voltage. According to the solution, PID compensation can be carried out on a photovoltaic assem
Resumen de: WO2025130947A1
Provided are a perovskite-silicon tandem solar cell and a preparation method therefor. The perovskite-silicon tandem solar cell comprises a silicon-based battery, an ITO intermediate composite layer, a first hole transport layer, a second hole transport layer, a perovskite light absorption layer, a first electron transport layer, a second electron transport layer, a top transparent conductive layer, and a conductive metal electrode, which are all sequentially stacked. The perovskite-silicon tandem solar cell of the present application can fully achieve the advantages of perovskite batteries and crystalline silicon batteries, reduce the effect of humidity and oxygen on the perovskite material while reducing the optical coupling effect of the perovskite material and the crystalline silicon material, lower the interface effect, and improve the efficiency and stability of the perovskite-silicon tandem solar cell.
Resumen de: WO2025130570A1
Disclosed in the present invention are an overvoltage treatment method and system for a photovoltaic transformer area based on a floating neutral wire voltage. The method comprises: a controller collecting a voltage U of a photovoltaic transformer area and a voltage U0 of a neutral point of a transformer; comparing the collected voltage data with a set threshold; on the basis of the comparison result, generating a control instruction for cancellation and compensation; and a neutral wire voltage regulator receiving the instruction, and performing voltage control. A floating neutral wire is introduced between a photovoltaic power supply and a neutral point of a grid-connected transformer, and a neutral wire voltage regulator is arranged at the floating neutral wire. The direction and the amplitude of the neutral wire voltage regulator are adjusted, so that the neutral wire voltage regulator adapts to the voltage problem of a transformer area in different states. Moreover, by adjusting the voltage of the neutral point side of the grid-connected transformer, the voltage of the neutral point of the grid-connected transformer is zero.
Resumen de: WO2025130345A1
Disclosed in the present invention are a continuous-wave perovskite polariton laser device and laser chip. A gain medium of the continuous-wave perovskite polariton laser device is a perovskite material or a mixed material containing the perovskite material, and is in the form of a thin film, a microcrystal, fluorescent powder, a nanocrystal, a quantum dot or a single crystal. A perovskite gain medium is prepared by means of a solution method or a vacuum coating method, and by combining the perovskite gain medium with an optical resonant cavity, steady-state exciton-polariton condensation is formed by means of strong interaction between excitons and photons, and low-threshold continuous-wave polariton laser emission can be achieved without the need to meet conventional laser device population inversion conditions. The laser device can implement room-temperature low-threshold continuous-wave or pulse lase emission under various coherent and incoherent light sources or electrical excitation pumping, the threshold of the laser device is 1-3 orders of magnitude lower than the thresholds of conventional semiconductor laser devices, and the optimized threshold can reach 0.1-1 W/cm2 or below; and the laser device relates to a novel ultra-low power coherent light source technology.
Resumen de: WO2025130280A1
A graphene-coated silver powder and a heterojunction low-temperature silver paste, and preparation methods therefor. The graphene-coated silver powder is prepared by utilizing the following method: adding graphene and a dispersing agent to a silver powder, and conducting ball milling, so as to obtain the graphene-coated silver powder. The raw materials of the heterojunction low-temperature silver paste comprise, in percentages by weight: 86-93% of a silver powder mixture, 7-10% of an organic carrier, and 0.5-1% of a curing agent, wherein the silver powder mixture comprises a flaky silver powder, a spherical silver powder and the graphene-coated silver powder. Compared with the prior art, the surfaces of silver particles are coated with graphene in one step by means of a high-energy ball-milling process, thereby achieving effective combination of the graphene with the surfaces of the silver particles and further improving the overall conductivity of the silver particles and the conductivity of the heterojunction low-temperature silver paste.
Resumen de: WO2025130417A1
The present application relates to the technical field of photovoltaics. Disclosed are a solar cell and a photovoltaic module, aiming to reduce the risk of cracking of a solar cell. The solar cell comprises a cell body, collector electrodes and first interconnection structures, wherein at least some regions of different first interconnection structures distributed at intervals in a second direction are located on the same connecting line; the number of connecting lines located in the same target surface is N1, the number of first interconnection structures intersecting with a target line segment located in the target surface is N2, where (I), and the target line segment is a connecting line segment between a midpoint of the longer one of two edges of the target surface that extend in a first direction and distributed opposite each other and an endpoint of a vertex angle corresponding to the shorter one of the two edges; alternatively, the number of connecting lines intersecting with a vector line segment having an inclination angle of 45° is N3, and the number of first interconnection structures intersecting with at least one the same vector line segment having the inclination angle of 45° is N4, where N3>N4.
Resumen de: WO2025133737A1
The present disclosure relates to energy storage cell, method for manufacturing and its uses. It is disclosed an energy storage cell comprising a thermally isolating outer shell comprising at least a part of an internal vessel, wherein the thermally isolating outer shell comprises a space, which is at least a partially empty space, between said internal vessel and an internal wall of the thermally isolating outer shell, wherein the internal vessel comprises a phase change material arranged to be heated; one or more thermoelectric or thermophotovoltaic converters arranged in said space for converting radiation emitted by the internal vessel to electrical energy.
Resumen de: WO2025133727A1
A photovoltaic module comprising a set of fixed elements, a rigid body connected to the set of fixed elements so as to be able to swing about a horizontal oscillation axis, one or more bifacial solar panels fixed on the rigid body such that, in the absence of external forces, the rigid body is in an equilibrium position, the rigid body being able to deviate from the equilibrium position under the effect of the wind in order to reduce the windage of the photovoltaic module.
Resumen de: US2025211166A1
An electrical bus system has a trunk bus that includes at least one positive bus line, an equal number of negative bus line, and a ground cable. The trunk bus lines extend through clamping blocks where some of the clamping blocks are coupled to brackets that are themselves coupled to vertical supports. The ground cable is coupled to vertical support using the bracket. Multi-tap shear bolt connectors are used to connect the trunk bus line to photovoltaic wires carrying the output from one or more solar panel arrays, thereby eliminating the need for combiner boxes used in conventional systems.
Resumen de: US2025211132A1
A photovoltaic inverter includes a conversion circuit, a collection circuit, and a controller. The collection circuit is configured to obtain a positive direct current bus voltage and a negative direct current bus voltage of the conversion circuit. The controller is configured to generate an even-order harmonic voltage regulation signal based on the positive direct current bus voltage and the negative direct current bus voltage of the conversion circuit and a phase of an output voltage of the photovoltaic inverter, generate a drive control signal based on the even-order harmonic voltage regulation signal, and control a switching transistor in the conversion circuit to be turned on or off to control the conversion circuit to output a target voltage and reduce a difference between the positive direct current bus voltage and the negative direct current bus voltage of the conversion circuit.
Resumen de: US2025211164A1
The present disclosure discloses a power supply extension line including a junction box. The junction box is fixedly connected with a conductive sheet providing with a bus. An end of the bus away from the junction box is provided with a triangular plug, an end of the conductive sheet away from the bus is provided with a branching line assembly, the branching line assembly respectively includes a branching line A, a branching line B and a branching line C at an end of the conductive sheet away from the bus, ends of the branching line A, the branching line B, and the branching line C away from the conductive sheet are respectively provided with a high-and-low voltage connector, a female plug, and a multifunctional adapter. The present application solves a problem of insufficient photovoltaic energy supply when connecting two or more solar outdoor decorative lamp groups.
Resumen de: US2025211161A1
An apparatus and method for mounting a solar panel array on a surface is disclosed. The solar panel array includes a plurality of solar panel modules and a hybrid solar panel module mounting assembly. The hybrid solar panel module mounting assembly includes a component of a rail-based mounting system and a component of a rail-less mounting system. At least one of the plurality of solar panel modules is mounted on the component of the rail-based mounting system and at least one of the plurality of solar panel modules is mounted on the component of the rail-less mounting system.
Resumen de: US2025211032A1
A system for optical wireless power transmission to a power receiving apparatus generally situated in a mobile electronic device. The transmitter has an optical resonator with end reflectors and a gain medium positioned between them, such that an optical beam is generated. The frequency of the beam is selected such that it is absorbed by almost all transparent organic materials in general use. A beam steering unit on the transmitter can direct the beam in any of a plurality of directions, and the beam is absorbed on the receiver by means of an optical-to-electrical power converter, through a low reflection surface. The band gap of this power converter is selected to be smaller than that of the gain medium. The receiver has a voltage converter including an inductor, an energy storage device and a switch. A beam steerer controller ensures that the beam impinges on the receiver.
Resumen de: US2025210960A1
A method for detecting arcing, an inverter and a photovoltaic system are provided. The inverter includes an inverter circuit and at least one DC/DC conversion circuit. The method includes: stopping outputting a control signal to a first DC/DC conversion circuit that is currently being suspected of having an electric arc, and operating other DC/DC conversion circuits connected to the inverter circuit normally; decreasing a voltage at a power supply side of the first DC/DC conversion circuit immediately after a first preset period of time elapsed; and determining that no arc fault occurs, and restoring the voltage at the power supply side of the first DC/DC conversion circuit to a first voltage that the first DC/DC conversion circuit receives before the stopping outputting the control signal, if a current at the power supply side is greater than or equal to a first preset current during the decreasing the voltage.
Resumen de: AU2025204205A1
Abstract A power receiver, comprising: a plurality of photovoltaic (PV) cells, each PV cell having: an active surface configured to receive light for conversion to electric power; and a cathode connector and an anode connector configured to produce a voltage therebetween when the active surface of the PV cell is exposed to light; a circuit board connected to at least one of the cathode and anode connectors, the circuit board having a plurality of apertures therein; and an output connector configured to electrically connect the circuit board to a load, wherein each PV cell is positioned to receive light that has passed through at least one of the plurality of apertures in the circuit board.
Resumen de: DE102023005386A1
Die Erfindung betrifft einen Bausatz zur Aufständerung von Solarmodulen (100) auf Freiflächen, Flachdächern und Dachterrassen, mit einer Unterkonstruktion (5), mindestens umfassend schienenartige Montageprofile (11), auf denen Abstützmittel angeordnet sind, mit welchen die Solarmodule (100) eine Neigungsstellung erhalten. Die Erfindung zeichnet sich dadurch aus, dass die Abstützmittel ein vorderer Montagefuß (20) und ein hinterer Montagefuß (40) in variablen Bauhöhen sind, die zueinander distanzvariabel in der Längsachse der Montageprofile (11) verstell- und fixierbar sind und wobei der vordere Montagefuß (20) eine geringere Bauhöhe als der hintere Montagefuß (40) besitzt und beide Montagefüße (20, 40) jeweils eine Aufnahme aufweisen, die zusammen eine geneigte Auflagefläche bilden, auf der sich die Solarmodule (100) abstützen und welche Mittel besitzen, in der Befestigungselemente einsetzbar sind, welche die Solarmodule (100) einklemmen und gegen Windsogkräfte sichern. Mit der Erfindung ist es möglich auf der Aufstellfläche, dies kann beispielsweise ein Flachdach oder einer Terrasse sein, ein Raster zu bilden. Dieses Raster kann an die Typen der verschiedensten Solarmodule angepasst und entsprechend der Örtlichkeit auf eine Optimierung der Absorptionsfläche ausgerichtet werden, ohne dass die Unterkonstruktion aufwendig individuell gefertigt werden muss. Während der vordere Fuß in einer Bauhöhe bereitgestellt wird, sieht der erfindungsgemäße Bausatz
Resumen de: DE102024131271A1
Die vorliegende Erfindung zielt darauf ab, eine Diagnosetechnik, die in der Lage ist, eine lokale Verschlechterung des in einer Solarzelle enthaltenen Serienwiderstands abzuschätzen, bereitzustellen. Ein Solarzellensystem gemäß der vorliegenden Erfindung erfasst den Serienwiderstand der Solarzelle, wenn die Solarzelle die Ausgabe basierend auf der ersten Menge an Sonneneinstrahlung begrenzt, erfasst den Serienwiderstand der Solarzelle, wenn die Solarzelle einen Maximalleistungspunkt nachverfolgt, und verwendet diese Serienwiderstände, um zu diagnostizieren, ob ein Verschlechterungsfaktor der Solarzelle ein lokaler Anstieg des Serienwiderstands oder ein Gesamtanstieg des Serienwiderstands ist.
Resumen de: DE102023136096A1
Die Erfindung betrifft ein Solarzellentestverfahren, eine Solarzellentestvorrichtung und ein computerlesbares Medium zur Implementierung des Solarzellentestverfahrens. Das Solarzellentestverfahren dient zur Charakterisierung einer kontaktierten Solarzelle oder eines kontaktierten Solarmoduls und umfasst folgende Verfahrensschritte: Durchführen eines ersten Messvorgangs, bei dem die Solarzelle mit Licht einer sich zeitlich ändernden Intensität bestrahlt wird und während des Bestrahlens ein zeitlicher Verlauf einer Zellspannung an der Solarzelle gemessen wird, um eine erste Sequenz an zeitaufgelösten Erst-Lichtintensitätswerten und zugehörigen zeitaufgelösten Erst-Spannungswerten zu erhalten; Durchführen eines zweiten Messvorgangs auf entsprechende Weise, um eine zweite Sequenz an zeitaufgelösten Zweit-Lichtintensitätswerten und zugehörigen zeitaufgelösten Zweit-Spannungswerten zu erhalten; Durchführung einer Umrechnung zu jedem Erst-Spannungswert, um jeweils einen Stationär-Lichtintensitätswerts (Ls) zu ermitteln, wobei die Gesamtmenge der Stationär-Lichtintensitätswerte (Ls) mit den jeweiligen Erst-Spannungswerten (V) eine Stationär-Kurve bildet.
Resumen de: DE102023136079A1
Die Erfindung betrifft ein Solarzellentestverfahren, eine Solarzellentestvorrichtung und ein computerlesbares Medium zur Implementierung des Solarzellentestverfahrens. Bei dem Solarzellentestverfahren werden an einer kontaktierten Solarzelle zwei Strom-Spannungs-Kurven ermittelt. Anschließend wird aus den beiden Kurven jeweils eine Emitterspannungskurve abgeleitet, aus denen mittels punktweise Differenzbildung eine Ladungsänderungskurve. Anschließend erfolgt die Ermittlung einer Diffusionskapazitätskurve mittels punktweise Quotientenbildung zwischen der Ladungsänderungskurve und einer nummerischen zeitlichen Ableitung der Emitterspannungskurve. Schließlich erfolgt ein Anpassen einer von einer Dotierkonzentration als freien Parameter abhängigen Diffusionskapazitätsfunktion an die ermittelte Diffusionskapazitätskurve derart, dass als Ergebnis des Anpassens ein Dotierkonzentrationswert für die Dotierkonzentration der kontaktierten Solarzelle bestimmt wird.
Resumen de: WO2025131175A1
The invention relates to a solar cell test method, to a solar cell test device, and to a computer-readable medium for implementing the solar cell test method. The solar cell test method is used to characterize a contacted solar cell or a contacted solar module and has the following steps: carrying out a first measuring process in which the solar cell is irradiated with light with an intensity which changes over time, and during the irradiation, the time curve of the cell voltage in the solar cell is measured in order to obtain a first sequence of time-resolved first light intensity values and corresponding time-resolved first voltage values; carrying out a second measuring process in a corresponding manner in order to obtain a second sequence of time-resolved second light intensity values and corresponding time-resolved second voltage values; and carrying out a calculation for each first voltage value in order to ascertain a respective stationary light intensity value (Ls), wherein the total quantity of stationary light intensity values (Ls) together with respective first voltage values (V) forms a stationary curve.
Resumen de: US2025207819A1
A system may include a solar collector configured to receive sunlight, wherein the solar collector includes a solar thermal collector and a photovoltaic (PV) module. A system may include a hot energy storage (HES) configured to receive solar heat from the solar thermal collector and heat the HES to a first temperature range. A system may include a cold energy storage (CES). A system may include a refrigeration unit for cooling the CES to a second temperature range less than the first temperature range. A system may include a thermodynamic generator configured to provide electricity to the refrigeration unit based on a temperature difference between the HES and a heat sink. A system may include a load including one or more electrical devices and a load fluid circuit for cooling the load, wherein the load fluid circuit is in thermal communication with the CES.
Resumen de: WO2025136676A1
A solar tracing system includes a torque tube (1810), a first single frame structure (1600) coupled to the torque tube (1810), and a second single frame structure (1700) coupled to the torque tube (1810). The first single frame structure (1600) includes first frame structure first and second module receptacles (1610,1612) at opposite sides of the first frame structure (1600), a first pair of solar modules (1602a, 1602b) received at the first frame structure first and second module receptacles (1610,1612), a first frame structure coupling flange (1614), and a first frame structure coupling flange receptacle (1618). The second single frame structure (1700) includes second frame structure first and second module receptacles (1710,1712) at opposite sides of the second frame structure (1700), a second pair of solar modules (1602c, 1602d) received at the second frame structure first and second module receptacles (1710,1712), a second frame structure coupling flange (1714), and a second frame structure coupling flange receptacle (1718).
Resumen de: WO2025131174A1
The invention relates to a solar cell test method, a solar cell test device and a computer readable medium for implementing the solar cell test method. In the solar cell test method, two current-voltage curves are ascertained at a contacted solar cell. Then, from each of the two curves, an emitter voltage curve is derived is each case, from which a charge change curve is ascertained by means of point-wise difference calculation. Then, a diffusion capacity curve is ascertained by means of point-wise quotient calculation between the charge change curve and a numeric temporal derivation of the emitter voltage curve. Then, a diffusion capacity function, which depends on a doping concentration as a free parameter, is adjusted to the ascertained diffusion capacity curve such that as a result of the adjustment, a doping concentration value for the doping concentration of the contacted solar cell is determined.
Nº publicación: WO2025132166A1 26/06/2025
Solicitante:
HULIN BISCHOF PETER [DE]
HULIN-BISCHOF, Peter
Resumen de: WO2025132166A1
A system (11) for achieving an efficient energy management in a building (13), in particular for a highly efficient use of renewable energies, comprises at least one module array (19, 20) which can be attached to the building (13) and which forms an air duct (29) on the building (13) for enclosing an air cushion (27). The system (11) achieves previously unused synergistic effects by means of an absolutely innovative use, in particular by means of a unique combination of possibly already known or existing technologies, in that energy losses occurring on the building (13) can be reduced to a minimum and used in order to increase the efficiency of devices for generating or converting renewable energies. Embodiments can have an air duct (29) enclosing the building (13) in order to use synergistic effects explained in the description in conjunction with one another. In particular, such an air duct (29) can be connected to an air-to-soil collector (41), a roof ridge draw-off point and a heat pump (37) in order to be able to improve the operating point of the heat pump (37) by supplying heated air. In addition, a systematic construction of insulating layers (for example, with reflective elements on the roof and with controllable insulating materials on the facade) in conjunction with a module array (19, 20) can provide an energy management that is as efficient as possible. Any additional energy requirement can be compensated for by a supplementary innovative system (69) comprising e
BOPI
Sede Electrónica
