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245
results.
Updated on
04/07/2025 [07:35:00]
Results 50 to 75 of 245
Absstract of: 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.
Absstract of: AU2025204150A1
The present invention provides a mount assembly for securing a solar panel rail or rail-less support structure directly to a roof surface. The mount assembly comprises a base having a top portion and a bottom portion, the top portion having a top surface and a bottom surface. The bottom portion comprises a cavity and a bottom surface including multiple openings. The mount assembly also comprises a guide extending upwards from the top surface of the base, wherein the guide forms a pair of members extending from opposing sides of the base and an aperture between the pair of members. The cavity is formed within the base, wherein the base has an open end. The mount assembly further comprises a sealant within the cavity, and a through-hole, wherein the through-hole extends from the bottom surface of the bottom portion to the top surface of top portion of the base. The present invention provides a mount assembly for securing a solar panel rail or rail-less support structure directly to a roof surface. The mount assembly comprises a base having a top portion and a bottom portion, the top portion having a top surface and a bottom surface. The bottom portion comprises a cavity and a bottom surface including multiple openings. The mount assembly also comprises a guide extending upwards from the top surface of the base, wherein the guide forms a pair of members extending from opposing sides of the base and an aperture between the pair of members. The cavity is formed within the base, wh
Absstract of: WO2025136989A1
A digital signage stand can include a main body having a display area outwardly oriented and a display device positioned on the stand main body. A processor can be connected to a display component and positioned within the display area. The processor can receive, without user input, an instruction to change content displayed at the display component. The processor can also change the content displayed at the display component based on the instruction. The digital signage stand can also include a power supply component, electrically connected to the display component and the processor.
Absstract of: 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.
Absstract of: WO2025135325A1
The present invention relates to a solar soundproof barrier capable of simultaneously implementing both a soundproof function and a solar power generation function in a soundproof wall structure installed around a road to block noise of a moving vehicle, by installing a solar panel of a solar power generation device to the structure. The solar soundproof barrier comprises a plurality of supports (10) installed apart from each other at regular intervals and a plurality of solar panels (20) stacked in a perpendicular structure between neighboring supports (10), wherein each of the supports (10) comprises a pair of support frames (10a) combined in a mutually symmetrical shape and each having a receiving groove (11) formed inside thereof so that a side part of the solar panel (20) is fitted and combined thereinto, and a load distribution member (100) for distributing load of the solar panel (20) is provided between solar panels (20) adjacent above and below.
Absstract of: WO2025137474A1
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.
Absstract of: WO2025135925A1
An insulation resistance measurement device according to an embodiment of the present invention comprises: a variable resistance unit that is connected between a DC link terminal and a ground; and an insulation resistance calculation unit that calculates insulation resistance by using a first voltage of the DC link terminal and a second voltage measured from the variable resistance unit, wherein the insulation resistance calculation unit calculates the insulation resistance by using the second voltage in a first state and the second voltage in a second state in which the resistance from the first state is variable.
Absstract of: WO2025135923A1
A power conversion device according to an embodiment of the present invention comprises: an input unit connected to a PV module; a voltage distribution unit for distributing a voltage between both ends of the input unit; an offset voltage unit for adding an offset voltage to the voltage input from the voltage distribution unit; and a control unit for using the output of the offset voltage unit to determine whether the input unit and the PV module are reversely connected.
Absstract of: WO2025137241A1
A method of making a photovoltaic module having a first set and second sets of photovoltaic cells connected in series is provided. A module precursor structure is formed having first and second electrically isolated photovoltaic structures on a substrate and defined by a first scribe structure along a first dimension. Each photovoltaic structure includes i) a bottom electrode overlaying the substrate; ii) a photoactive layer overlaying the bottom electrode, the photoactive layer including at least a perovskite absorber layer and iii) a top electrode overlaying the photoactive layer, wherein at least one of the top and bottom electrodes is a transparent electrode. A series connection is made between the first and second photovoltaic structures by forming an electrically conductive connector. A second scribe structure is formed through the first and second photovoltaic structures by selectively removing the top electrode, the photoactive layer, and the bottom electrode in a target area along a second dimension substantially orthogonal to the first dimension.
Absstract of: 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.
Absstract of: 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).
Absstract of: 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.
Absstract of: WO2025135924A1
An auxiliary power source device according to one embodiment of the present invention generates an auxiliary power source of a power conversion device, and comprises: a first input unit into which DC power is input; a second input unit into which AC power is input; a rectification unit for converting, into DC power, the AC power input into the second input unit; and a power conversion unit connected to the first input unit and the rectification unit so as to convert the power input from the first input unit or the rectification unit and generate an auxiliary power source.
Absstract of: WO2025135927A1
A power conversion device according to an embodiment of the present invention comprises: a switching element; a temperature sensing element for measuring the temperature of the switching element; and a control unit for calculating an outdoor air temperature from the temperature measured by the temperature sensing element by using a temperature transfer function of the switching element, wherein the temperature transfer function represents an estimated temperature of the switching element according to output power.
Absstract of: WO2025135391A1
The present disclosure provides an electronic device for photovoltaic power generation simulation. The electronic device can acquire at least one piece of information for performing photovoltaic power generation simulation on a device having a photovoltaic power generation function, transmit at least one piece of information including window transmission loss rate-related information to a server, receive result data of the photovoltaic power generation simulation from the server, and display, on the basis of the result data, a recommended arrangement area and first information related to a photovoltaic power generation effect on a space or a map associated with the space. The information about the photovoltaic power generation effect can be acquired on the basis of the window transmission loss rate-related information.
Absstract of: WO2025133412A1
The invention relates to a bearing assembly for solar tracker rotation profiles, which comprises a bearing support that attaches to a support post, and a rotating frame. The bearing assembly comprises a sleeve arranged between the rotating frame and the rotation profile. The sleeve is a damping element, such that it absorbs impact between the rotating frame and the rotation profile during relative accelerations between the two structural elements. The surfaces of the damping sleeve and/or of the rotation profile that are to be in mutual contact may comprise an adhesive to facilitate installation and operation. The damping sleeve may comprise one or more channels at the two longitudinal ends thereof. If there is only one channel, the channel may run along the entire perimeter edge of the border that surrounds the rotation profile, closing on itself.
Absstract of: WO2025133411A1
The invention relates to a damping belt (1) for solar trackers, for attaching panels to a rotation shaft of a solar tracker, which comprises at least one vibration-damping device (2) with a rigid central body (3), the upper part of which comprises a plate (4) for fastening the solar panels thereon, while the lower part thereof comprises a crosspiece (5) disposed in the longitudinal direction of the belt (1) in an operative position, the ends thereof being embedded in blocks (6) of elastic material. The blocks (6) are joined to flat bars (7), the flat bars (7) having tabs (7.1) for attaching the vibration-damping device (2) to the damping belt (1), such that the blocks (6) sit on the bottom (1.2) of a channel in the damping belt (1) and the rigid central body (3) has freedom of movement perpendicular to the plane of the panel to damp vibrations in the operative position.
Absstract of: 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
Absstract of: 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.
Absstract of: 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.
Absstract of: 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
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Nº publicación: WO2025132716A1 26/06/2025
Applicant:
AIT AUSTRIAN INSTITUTE OF TECH GMBH [AT]
AIT AUSTRIAN INSTITUTE OF TECHNOLOGY GMBH
Absstract of: WO2025132716A1
A system comprising a high-voltage direct current (HVDC) transmission line (10) carried by pylons (20), a high-voltage PV generator (30) connected to the high-voltage direct current transmission line (10), a power conversion equipment (40) with an input connected to the high-voltage direct current transmission line (10) and an output connectable to an AC or DC grid (50), comprises at least one of a point-source, a load and a network. A high-voltage output of the high-voltage PV generator (30) is directly connected (11) to a transmission pole (12) of the high-voltage direct current transmission line (10). The high-voltage PV generator (30) comprises at least one row of PV modules (35) which are directly serially connected (31) along a meandering arrangement. The single PV modules (35) and the rows are connected to independent power lines. The independent power lines are mechanically and/or electrically connected to the pylons (20) directly.
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