The invention relates to a method for manufacturing a photovoltaic device (15) having electrical front contacts (11), comprising the steps: providing a mono- or multi-crystalline silicon substrate (1) comprising a predetermined quantity of a p-type or a n-type dopant and having a front surface (3) and a back surface (5), forming an oxide layer (7) on the front surface (3) of the substrate (1), depositing silicon on the oxide layer (7) in a thick layer of 60 to 300 nm on portions of the front surface to be equipped with metallic contacts (11) to create diffusion buffers (8) for metallic atoms, and in a thin layer (9) of 5 to 30 nm on the whole front surface to create a passivation layer in combination with the oxide layer, annealing the oxide layer and the deposited silicon, forming metallic front contacts (11) on the diffusion buffers.
A method, system, and device for managing off-grid power supply are provided. The method includes acquiring data from one or more loads. The one or more loads are connected to the off-grid power supply. The method further includes modeling the one or more loads based on the acquired data, estimating a state of charge of an energy storage device (ESD) associated with the off-grid power supply, and determining an operational status of each of the one or more loads. The operational status is based on at least the state of charge of the ESD and a category of each of the one or more loads. Each load is controlled based on the operational status.
H02J 3/14 - 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 interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 7/34 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p. ex. batterie tampon
H02J 7/35 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p. ex. batterie tampon avec des cellules sensibles à la lumière
3.
PASSIVATED EMITTER AND REAR CONTACT PHOTOVOLTAIC OR PHOTODETECTOR DEVICE AND METHOD FOR MANUFACTURING SUCH A DEVICE
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
ECOLE POLYTECHNIQUE (France)
INSTITUT PHOTOVOLTAIQUE D'ILE DE FRANCE - IPVF (France)
Inventeur(s)
Drahi, Etienne
Grand, Pierre-Philippe
Fischer, Guillaume
Abrégé
The invention relates to a passivated emitter and rear contact photovoltaic or photodetector device, comprising a crystalline silicon substrate (1). According to the invention, the rear face (12) of the device includes a porous layer (4) of silicon having a textured surface, the textured surface comprising pores (41, 42, 43, 44, 4n) with dimensions between approximately 20 nm and 1000 nm, said pores forming openings (51, 52, 53, 54, 5n) oriented towards the rear face (12) of the device, and the device also includes a thin passivation layer (5) matching at least one portion of the textured surface, and at least one metal electrode (2, 21, 22) formed on the rear face (12) of the device, the metal electrode (2, 21, 22) being adapted to form at least one electrical contact on the rear face (12) of the device.
H01L 31/056 - Dispositifs à semi-conducteurs sensibles aux rayons infrarouges, à la lumière, au rayonnement électromagnétique d'ondes plus courtes, ou au rayonnement corpusculaire, et spécialement adaptés, soit comme convertisseurs de l'énergie dudit rayonnement e; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives; Leurs détails adaptés comme dispositifs de conversion photovoltaïque [PV] Éléments optiques directement associés ou intégrés à la cellule PV, p.ex. moyens réflecteurs ou concentrateurs de lumière les moyens réflecteurs de lumière étant du type réflecteur en face arrière
H01L 31/068 - Dispositifs à semi-conducteurs sensibles aux rayons infrarouges, à la lumière, au rayonnement électromagnétique d'ondes plus courtes, ou au rayonnement corpusculaire, et spécialement adaptés, soit comme convertisseurs de l'énergie dudit rayonnement e; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives; Leurs détails adaptés comme dispositifs de conversion photovoltaïque [PV] caractérisés par au moins une barrière de potentiel ou une barrière de surface les barrières de potentiel étant uniquement du type homojonction PN, p.ex. cellules solaires à homojonction PN en silicium massif ou cellules solaires à homojonction PN en couches minces de silicium polycristallin
H01L 31/0232 - Dispositifs à semi-conducteurs sensibles aux rayons infrarouges, à la lumière, au rayonnement électromagnétique d'ondes plus courtes, ou au rayonnement corpusculaire, et spécialement adaptés, soit comme convertisseurs de l'énergie dudit rayonnement e; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives; Leurs détails - Détails Éléments ou dispositions optiques associés au dispositif
H01L 31/18 - Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives
H01L 31/103 - Dispositifs sensibles au rayonnement infrarouge, visible ou ultraviolet caractérisés par une seule barrière de potentiel ou de surface la barrière de potentiel étant du type PN à homojonction
4.
A MULTI-AGENT SHARED MACHINE LEARNING APPROACH FOR REAL-TIME BATTERY OPERATION MODE PREDICTION AND CONTROL
A method, system, and device for controlling energy storage devices are provided, the method including receiving a trained machine learning model from a centralized machine learning system, recording temporal data for a respective energy storage device, periodically transmitting the temporal data to the machine learning system, performing a mode prediction for controlling the energy storage device using the trained machine learning model and the temporal data, and sending a control signal to the energy storage device to operate in the predicted mode. The machine learning system aggregates the temporal data transmitted by each agent and uses the aggregated temporal data to update the machine learning model. By using aggregated temporal data, less data is needed from an individual energy storage device so that when a new energy storage device joins the machine learning system, the new energy storage device can benefit from increased performance with less computation.
G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
A method, system, and device for controlling an energy storage device are provided. The method includes identifying a predetermined number of features based on forecasted data and data obtained from the energy storage device. The method also includes identifying an operating mode from a plurality of operating modes for a predetermined operating period using a machine learning model and operating the energy storage device in the operating mode for the predetermined operating period.
G05B 13/02 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
6.
FLEXIBLE LAMINATE OF PHOTOVOLTAIC CELLS AND METHOD FOR MANUFACTURING SUCH A FLEXIBLE LAMINATE
The present invention relates to a flexible laminate (1) of photovoltaic cells (3) comprising: • a layer of photovoltaic cells (3) connected to one another, and • a front layer (5) and a rear layer for encapsulating the layer of photovoltaic cells (3), said front (5) and rear encapsulating layers sandwiching the layer of photovoltaic cells (3), characterised in that the flexible laminate (1) also comprises at least one transparent layer of polymer-base varnish (9) deposited on one of the front (5) and/or rear encapsulation layers, said at least one transparent layer of varnish (9) being provided on the outside of the flexible laminate (1) and being configured to protect the flexible laminate (1).
H01L 31/055 - Dispositifs à semi-conducteurs sensibles aux rayons infrarouges, à la lumière, au rayonnement électromagnétique d'ondes plus courtes, ou au rayonnement corpusculaire, et spécialement adaptés, soit comme convertisseurs de l'énergie dudit rayonnement e; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives; Leurs détails adaptés comme dispositifs de conversion photovoltaïque [PV] Éléments optiques directement associés ou intégrés à la cellule PV, p.ex. moyens réflecteurs ou concentrateurs de lumière où la lumière est absorbée et réémise avec une longueur d’onde différente par l’élément optique directement associé ou intégré à la cellule PV, p.ex. en utilisant un matériau luminescent, des concentrateurs fluorescents ou des dispositions de convers
A decoupled ETP model processor is configured to store power consumption data retrieved from power systems; convert the power consumption data into power activated time cycles and power non-activated time cycles; derive a thermal resistance (R) parameter and a capacitance (C) parameter for a predetermined heat flow (Q) parameter at each of the outdoor temperatures; compare the converted power activated time cycles to the actual power activated time cycles; compare the converted power non-activated time cycles to the actual power non-activated time cycles; calculate a first improved resistance-capacitance-heat flow (RCQ) parameter set and a respective first outdoor temperature for the compared and converted power activated time cycles to the actual power activated time cycles; calculate the Q parameter at each outdoor temperature during the power activated time cycles; and calculate the R parameter and the C parameter at each outdoor temperature during the power non-activated time cycles.
An aggregated distribution system includes an HVAC controller, a battery controller, and an aggregated data management engine. The aggregated data management engine is configured to retrieve an HVAC energy usage profile and retrieve a battery energy usage profile. The aggregated distribution system also includes distribution engine configured to forward a first set of HVAC dual variables and forward a first set of battery dual variables to a first neighboring unit of the aggregated distribution system, receive one or more additional sets of HVAC dual variables and one or more additional sets of battery dual variables from one or more neighboring units of the aggregated distribution system, update the HVAC energy usage profile with the one or more additional sets of HVAC dual variables, and update the battery energy usage profile with the one or more additional sets of battery dual variables.
G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation
9.
METHOD FOR RECYCLING SUB-MICRON SI-PARTICLES FROM A SI WAFER PRODUCTION PROCESS
The invention relates to a method for recycling sub-micron Si-particles from a Si wafer production process resulting from a diamond fixed abrasive process, in particular slicing and cutting comprising the steps of: - providing a paste (3) of sub-micron Si-particles resulting from said diamond fixed abrasive process, - drying and shaping into a layer (7) said paste of sub-micron Si-particles, - applying a zone melting step to said dried and shaped layer of Si-particles on a substrate (5).
C30B 13/06 - Croissance des monocristaux par fusion de zoneAffinage par fusion de zone la zone fondue ne s'étendant pas à toute la section transversale
C30B 13/24 - Chauffage de la zone fondue par irradiation ou par décharge électrique en utilisant des radiations électromagnétiques
C30B 35/00 - Appareillages non prévus ailleurs, spécialement adaptés à la croissance, à la production ou au post-traitement de monocristaux ou de matériaux polycristallins homogènes de structure déterminée
10.
SYSTEM, DEVICE, AND METHOD FOR MODE-BASED ENERGY STORAGE MANAGEMENT
A method, system, and device for controlling an energy storage device are provided. The method includes determining an operating schedule for the energy storage device based on at least an initial cost. The initial cost is a function of at least a load profile and a power production profile of at least one renewable energy source associated with the energy storage device. The operating schedule is for a predetermined period. The method further includes determining an updated cost based on at least the operating schedule, identifying an operating mode from a plurality of operating modes for a predetermined operating period based on the updated cost and the operating schedule; and operating using the operating mode for the predetermined operating period.
Methods of recycling silicon swarf into electronic grade polysilicon or metallurgical-grade silicon are described herein are described. In an example, a method includes cutting a silicon ingot and recovering silicon swarf having a first purity from the cutting process. The recovered silicon is purified in an upgraded metallurgical silicon process to produce electronic grade polysilicon particles having a second purity higher than the first purity. The upgraded metallurgical silicon process can include dissolving the recovered silicon particles in a molten aluminum metal smelt.
H01L 31/18 - Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives
B28D 5/04 - Travail mécanique des pierres fines, pierres précieuses, cristaux, p. ex. des matériaux pour semi-conducteursAppareillages ou dispositifs à cet effet par outils autres que ceux du type rotatif, p. ex. par des outils animés d'un mouvement alternatif
12.
PROCESS FOR ENCAPSULATING PHOTOVOLTAIC PANELS USING PREIMPREGNATED MATERIALS
A process is provided for manufacturing a panel of photovoltaic cells, including a step of baking a stack of a plurality of layers comprising different materials. The plurality of layers includes the following layers: a translucent front layer made of polymer, at least two layers of dry fibreglass fabric, at least two layers of fibreglass fabric that is preimpregnated with epoxy resin, a layer of photovoltaic cells, and a back layer made of polymer. The use of fibreglass fabrics that are preimpregnated with epoxy resin associated with polymer films ensures an excellent mechanical strength of the panels over time under the effect of climatic conditions. Prior to the step of stacking the layers, the process includes a step of producing the photovoltaic-cell layer including the connection of rows of cells placed in series, the rows being connected together via field-effect transistors encapsulated in the panel at the end of the baking step.
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