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POWER CONVERTER, POWER SYSTEM, AND METHOD FOR CONTROLLING POWER CONVERTER

Resumen de: EP4657696A1

A power converter, a power system, and a method for controlling the power converter are provided. The power converter includes a DC voltage conversion circuit, a DC-AC voltage conversion circuit connected to the DC voltage conversion circuit, a switching circuit and a controller communicatively connected to the DC voltage conversion circuit, the DC-AC voltage conversion circuit and the switching circuit. The DC voltage conversion circuit is configured for converting DC power outputted by a DC power supply to output converted DC power to the DC-AC voltage conversion circuit. The controller is configured for, when operation of the power grid is abnormal: controlling the switching circuit to disconnect the DC-AC voltage conversion circuit electrically from a power grid and a load, stopping operation of the DC-AC voltage conversion circuit and keeping operation of the DC voltage conversion circuit.

METHOD FOR WARNING AGAINST A POWER GENERATION DEVICE FAILURE AND ASSOCIATED ELECTRONIC DEVICE

Resumen de: EP4657750A2

L'invention concerne un procédé d'alerte mis en œuvre par un dispositif électronique de supervision (200) connecté à un ou plusieurs dispositifs de production d'énergie (100). Le procédé comprend : une détermination, par un modèle de classification de cause de déviations prenant en entrée un historique de déviations entre une valeur représentative d'une prédiction d'une quantité d'énergie produite par ce ou ces dispositifs de production d'énergie et une valeur représentative d'une quantité d'énergie effectivement produite par ce ou ces dispositifs de production d'énergie, d'une occurrence d'une défaillance d'au moins un composant du ou des dispositifs de production d'énergie ; et une génération d'une alerte selon laquelle au moins un composant du ou des dispositifs de production d'énergie est défaillant.

SOLAR MODULE

Resumen de: EP4658028A1

A solar module includes a plurality of solar cells and a carrier plate. The carrier plate includes a front cover and a back cover. The plurality of solar cells are welded and connected in series to define a plurality of solar battery string groups. The plurality of solar cells are connected in series at a predetermined spacing distance therebetween in a first direction to form each of the plurality of solar battery string groups. A width of each of the plurality of solar cells in the first direction is a first length, a length of each of the plurality of solar cells in a second direction is a second length, and a ratio of the second length to the first length is greater than 10. The plurality of solar battery string groups are pressed between the front cover and the back cover via a plurality of bus strips.

SOLAR CELL AND PHOTOVOLTAIC MODULE

Resumen de: EP4658029A1

The present application provides a solar cell, including: a silicon substrate, and a plurality of fingers formed on a surface of the silicon substrate. The silicon substrate is doped with antimony; and when a grid line density of fingers with the same polarity on a unit length in a direction perpendicular to the plurality of fingers is n/cm and a concentration of antimony in the silicon substrate is a atom/cm<3>, n and a meet the following relationship: n≥35-klg a, where k is less than or equal to 2. The present application further provides a photovoltaic module formed by the solar cell provided in the present application.

SWEEPING ROBOT

Resumen de: EP4656113A1

The present invention provides a sweeping robot, which belongs to the technical field of household appliances. The sweeping robot includes a main body (1), a first cleaning mechanism (2), and a second cleaning mechanism (3). The first cleaning mechanism (2) is connected to the main body (1) and is located below the main body (1), and the first cleaning mechanism (2) is used to clean the floor. The second cleaning mechanism (3) is rotatably connected to the main body (1), and the second cleaning mechanism (3) has a first state and a second state. In the first state, the second cleaning mechanism (3) retracts relative to the side of the main body (1). In the second state, the second cleaning mechanism (3) protrudes relative to the side of the main body (1).

COVER ASSEMBLY FOR COVERING A ROOF OF A FIRST BUILDING MODULE

Resumen de: EP4657749A1

Ensemble de couverture (1) pour couvrir au moins un premier module de construction (10) ayant une toiture (10a), l'ensemble de couverture (1) comportant :- un premier panneau photovoltaïque (Pv1) pour capter de l'énergie solaire :- un premier support (S1) du premier panneau photovoltaïque (Pv1), le premier panneau (Pv1) définissant une partie d'une surface de couverture au-dessus de la toiture (10a).Le premier support (S1) comporte une pluralité de poteaux (S1a, S1b, S1c, S1d) pour supporter le premier panneau (Pv1), un garde-corps (G) porté par certains au moins des poteaux (S1a, S1b, S1c, S1d) présente une lisse supérieure (G1) définissant une limite périphérique d'une zone centrale (Zc) de captation d'énergie où se trouve le premier panneau photovoltaïque (Pv1).

AMPHIPATHIC MOLECULE, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: EP4656623A1

This application discloses an ambipolar molecule, a preparation method thereof, and an application thereof. The chemical structure general formula of the ambipolar molecule provided by this application is represented by formula I:where R includes a Lewis base group, X₁, X₂, X₃, X₄, and X₅ each include at least one of a hydrogen atom and a halogen atom, X₁, X₂, X₃, X₄, and X₅ are not simultaneously hydrogen, and n is an integer greater than or equal to 1. The ambipolar molecule of this application simultaneously possesses a Lewis acid group and a Lewis base group, enabling it to passivate two types of defects at perovskite grain boundaries, namely undercoordinated anions and undercoordinated cations. Thus, when used in perovskite materials, such an ambipolar molecule can significantly improve the conversion efficiency and stability of perovskite.

LIGHT CONVERSION LAYER, SOLAR CELL, AND ELECTRICAL DEVICE

Resumen de: EP4658038A1

The present application relates to the technical field of solar cells, and in particular to a light conversion layer, a solar cell, and an electrical apparatus. The light conversion layer includes a conversion material. The conversion material includes an up-conversion luminescent material and/or a down-conversion luminescent material. The light conversion layer is arranged on a light incident side of a light absorption layer of the solar cell. By introducing the light conversion layer including the up-conversion luminescent material and/or the down-conversion luminescent material into the solar cell, long-wavelength band (low energy) and/or short-wavelength band (high energy) photons can be absorbed and converted into wavebands that can be absorbed by the light absorption layer, which is beneficial to improving the solar spectrum utilization rate and the output performance of the solar cell.

MICRO-GRID SYSTEM

Resumen de: EP4657698A1

This application provides a microgrid system. The system includes a first photovoltaic power generation system, an alternating current bus, a UPS (Uninterrupted Power System, uninterruptible power supply), a first switch, and a second switch. When a photovoltaic power generation system meets a power generation condition, the first photovoltaic power supply system directly or indirectly supplies power to the UPS. After the UPS is activated, the UPS supplies power to units such as a monitoring unit and a control unit of the microgrid system, so that a system controller can control another energy storage power supply system and photovoltaic power generation system in the microgrid to start, and the entire microgrid can automatically start and restore to a normal and stable running state.

SILICON WAFER, CELL, CELL STRING, AND SOLAR MODULE

Resumen de: EP4656779A1

This application relates to a silicon wafer, where a concentration of an antimony element in the silicon wafer ranges from 4E+14 cm^-3 to 2E+16 cm^-3, preferably ranges from 4.30E+14 cm^-3 to 1.9E+16 cm^-3, and further preferably ranges from 4.45E+14 cm^-3 to 1.87E+16 cm^-3; and a minority carrier lifetime of the silicon wafer is greater than or equal to 200 µs, preferably greater than or equal to 300 µs, and further preferably greater than or equal to 500 µs. This application further relates to another silicon wafer, where a concentration of an antimony element in the silicon wafer ranges from 4E+14 cm^-3 to 2E+16 cm^-3, preferably ranges from 4.30E+14 cm^-3 to 1.9E+16 cm^-3, and further preferably ranges from 4.45E+14 cm^-3 to 1.87E+16 cm^-3; and a minority carrier lifetime of the silicon wafer is greater than or equal to 300 µs, preferably greater than or equal to 400 µs, and further preferably greater than or equal to 600 µs.

SYSTEM AND METHOD FOR IMPROVING COLOR APPEARANCE OF SOLAR ROOFS

Resumen de: AU2025256149A1

One embodiment can provide a photovoltaic roof tile. The photovoltaic roof tile can include a transparent front cover, a transparent back cover, and a plurality of polycrystalline­ Si-based photovoltaic structures positioned between the front cover and the back cover. A 5 respective polycrystalline-Si-based photovoltaic structure has a front surface facing the front cover and a back surface facing the back cover. The photovoltaic roof tile can further include a paint layer positioned on a back surface of the back cover facing away from the front cover. A color of the paint layer substantially matches a color of the front surface of the respective polycrystalline-Si-based photovoltaic structure. One embodiment can provide a photovoltaic roof tile. The photovoltaic roof tile can include a transparent front cover, a transparent back cover, and a plurality of polycrystalline- Si-based photovoltaic structures positioned between the front cover and the back cover. A 5 respective polycrystalline-Si-based photovoltaic structure has a front surface facing the front cover and a back surface facing the back cover. The photovoltaic roof tile can further include a paint layer positioned on a back surface of the back cover facing away from the front cover. A color of the paint layer substantially matches a color of the front surface of the respective polycrystalline-Si-based photovoltaic structure. ct c t

PHOTOVOLTAIC DISTRIBUTION NETWORK SYSTEM AND NETWORK CONFIGURATION METHOD FOR PHOTOVOLTAIC DISTRIBUTION NETWORK SYSTEM

Resumen de: CA3256219A1

A photovoltaic distribution network system and a network configuration method therefor are provided. The photovoltaic distribution network system includes a distribution network control device, multiple photovoltaic devices and a router. The distribution network control device is configured to generate a device list including device information of to-be-configured devices, and transmit the device list and network configuration information to the to-be-configured devices. The to-be-configured device is configured to broadcast device information of the to-be-configured devices based on the network configuration information. The router is configured to receive the device information broadcast by the to-be-configured devices, and establish a communication connection with a first distribution network device among the to-be-configured devices based on device information of the first distribution network device. The first distribution network device is configured to receive device information broadcast by a to-be-configured device not in a communication connection, and establish a direct or indirect communication connection with the to-be-configured device not in the communication connection. With the method, the communication quality between the photovoltaic device and the router is improved, and the hardware cost of the photovoltaic distribution network system is reduced.

ATOMIC HYDROGEN AND MOLTEN METAL POWER GENERATOR

Resumen de: US2025350180A1

Systems to induce current flow in a circuit formed by intersecting molten metal streams are provided. The systems involve induction type electromagnetic pumps that produce each molten metal stream. In some embodiments, the current induced through the molten metal streams is induction current.

U-Profil zur Befestigung eines Photovoltaik-Moduls

Resumen de: CH721825A1

Die Erfindung betrifft ein U-Profil (11) zur Befestigung eines PV-Moduls (13) an einer Haltekonstruktion (15). Das U-Profil umfasst einen Basissteg (17) und einen ersten und zweiten an den Basissteg (17) anschliessenden Schenkel (19,21). Der zweite Schenkel (21) ist niedriger als der erste Schenkel (19). An der Aussenseite (23) des zweiten Schenkels (21) ist ein dritter Schenkel (25) befestigt, welcher höher als der zweite Schenkel (21) ist.

Storage of wind and solar electricity in compressed air

U-Profil zur Befestigung eines Photovoltaik-Moduls

Nº publicación: CH721822A2 28/11/2025

Solicitante:

ROPROD GMBH [CH]
ROPROD GMBH

Resumen de: CH721822A2

Die Erfindung betrifft ein U-Profil (11) zur Befestigung eines PV-Moduls (13) an einer Haltekonstruktion (15). Das U-Profil umfasst einen Basissteg (17) und einen ersten und zweiten an den Basissteg (17) anschliessenden Schenkel (19,21). Der zweite Schenkel (21) ist niedriger als der erste Schenkel (19). An der Aussenseite (23) des zweiten Schenkels (21) ist ein dritter Schenkel (25) befestigt, welcher höher als der zweite Schenkel (21) ist.