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1. 发明公开

EP4436038A1 PHOTOVOLTAIC INVERSION SYSTEM AND LIGHTNING PROTECTION DEVICE 审中-实审
公开(公告)号：EP4436038A1
公开(公告)日：2024-09-25
申请号：EP23901746.0
申请日：2023-11-28
申请人： Huawei Digital Power Technologies Co., Ltd.
发明人： YAN, Yang , LI, Luo , LIU, Weiping , YANG, Gun
IPC分类号： H02S40/30
CPC分类号： Y02E10/56
摘要： This application discloses a photovoltaic inverter system and a lightning protection apparatus. The photovoltaic inverter system includes a lightning protection apparatus, a plurality of DC/DC conversion circuits, and an inverter circuit. Each DC/DC conversion circuit is connected to a component. The plurality of DC/DC conversion circuits are connected in parallel and then connected to the inverter circuit. The lightning protection apparatus includes a gas lightning protection unit and a first lightning protection unit. The gas lightning protection unit is separately connected to a first terminal of the component and a first terminal of another component. The first lightning protection unit is connected between the first terminal of the component and a grounding terminal. The gas lightning protection unit is configured to transmit, to the first lightning protection unit, a first current, namely a current introduced by any terminal of the another component. The first lightning protection unit is configured to transmit the first current and/or a second current to the grounding terminal, where the second current is a current introduced by the first terminal of the component, and the first terminals have a same polarity. Because a starting voltage of a gas discharge tube is low, normal operation is ensured. In addition, because the gas discharge tube is small in size, a system size is reduced.

2. 发明公开

EP4398481A1 PHOTOVOLTAIC CONVERTER AND PHOTOVOLTAIC POWER GENERATION SYSTEM 审中-实审
公开(公告)号：EP4398481A1
公开(公告)日：2024-07-10
申请号：EP23829997.8
申请日：2023-06-16
申请人： Huawei Digital Power Technologies Co., Ltd.
发明人： TANG, Yunyu , ZHANG, Yaojia , SHI, Lei , LIU, Chao
IPC分类号： H02S40/30 , H02S40/32 , H02S50/00 , G01R19/00 , G01R15/18 , H01F38/30
摘要： This application provides a photovoltaic converter and a photovoltaic generation system. The photovoltaic converter is configured to electrically connect to a first photovoltaic module and a second photovoltaic module, where the first photovoltaic module includes a first positive electrode output end and a first negative electrode output end, and the second photovoltaic module includes a second positive electrode output end and a second negative electrode output end. The photovoltaic converter includes a current transformer and a power conversion circuit. The current transformer includes a magnetic structure, a first positive primary side winding, a second positive primary side winding, a negative primary side winding, and a first secondary side winding. The three primary side windings all pass through the magnetic structure and are spaced from each other. One end part of one of the two positive primary side windings and one end part of the other positive primary side winding are respectively electrically connected to the first positive electrode output end and the second positive electrode output end, and the other end part of each of the two positive primary side windings is electrically connected to the power conversion circuit. One end part of the negative primary side winding is electrically connected to the two negative electrode output ends, and the other end part thereof is electrically connected to the power conversion circuit. The first secondary side winding is wound around the magnetic structure. This reduces an occupied board area.

3. 发明公开

EP4391362A1 CIRCUIT DE CONTRÔLE D'UN MICROCONTRÔLEUR D'UN SYSTÈME PHOTOVOLTAÏQUE SANS BATTERIE, DISPOSITIFS ET PROCÉDÉ ASSOCIÉS 审中-实审
公开(公告)号：EP4391362A1
公开(公告)日：2024-06-26
申请号：EP23217917.6
申请日：2023-12-19
申请人： Commissariat à l'énergie atomique et aux énergies alternatives
发明人： VERVAART, Mark
IPC分类号： H02S40/30
CPC分类号： H01M14/00 , H02S40/30
摘要： La présente invention concerne un circuit de contrôle (16) d'un contrôleur d'un système photovoltaïque, le circuit de contrôle (16) comportant :
- une entrée (16E),
- une sortie (16S),
- une unité de démarrage formée par un circuit de dissipation (22) de la puissance, un circuit de régulation (24) en tension et un comparateur (26),
- un premier commutateur (18) présentant une position dans laquelle l'unité de démarrage est connectée à l'entrée (16E) et une position inverse, et
- un deuxième commutateur (20) présentant une position dans laquelle l'entrée (16E) et la sortie (16S) ne sont pas reliées et une position inverse,
le comparateur (26) comparant les tensions du circuit de dissipation (22) et du circuit de régulation (24), le comparateur (26) émettant une tension de commande des deux commutateurs (18, 20) dépendant de la comparaison.

4. 发明公开

EP4350982A1 PHOTOVOLTAIC PANEL WITH INTEGRATED FUNCTIONAL COMPONENT FOR INSTALLATION ON A BUILDING AND METHOD OF MANUFACTURING A PHOTOVOLTAIC PANEL 审中-公开
公开(公告)号：EP4350982A1
公开(公告)日：2024-04-10
申请号：EP22200373.3
申请日：2022-10-07
申请人： Sono Motors GmbH
发明人： HAHN, Laurin
IPC分类号： H02S20/25 , H02S20/26 , H02S40/34 , H02S40/30
摘要： The present invention relates to a photovoltaic, PV, panel (1) for an installation on a building and a method for producing the latter, the PV panel (1) including: a photovoltaic, PV, label (3) comprising a stack of at least a front side polymeric lamination foil (5), a rear side polymeric lamination foil (7) and a solar cell arrangement (9) including multiple solar cells (11) interposed between the front and rear side lamination foils (5, 7); an injection molded support structure (17) supporting the PV label (3), wherein the support structure (17) comprises a polymer covering a front surface (19) and at least partially a rear surface (21) of the PV label (3); wherein the PV panel (1) further comprises, at the rear surface (21) of the PV label (3), a connector box (61) for accommodating a connector for electrically connecting the PV label (3) and a wiring, wherein the connector box (61) comprises a housing (65), and wherein the housing (65) is integrally formed with the support structure (17) as one piece.

5. 发明公开

EP4318911A1 POWER CONVERSION APPARATUS HAVING MULTI-LEVEL STRUCTURE 审中-实审
公开(公告)号：EP4318911A1
公开(公告)日：2024-02-07
申请号：EP22776175.6
申请日：2022-03-25
申请人： LG Innotek Co., Ltd.
发明人： JUNG, Kwang Soon , PARK, Jeong Heum , KIM, Soo Hong
IPC分类号： H02M3/158 , H02M3/28 , H02S40/30 , H02M1/00
摘要： A power conversion apparatus according to an embodiment of the present invention comprises: a plurality of converters connected to a plurality of cell strings, respectively, and one control unit for applying a control signal to each of plurality of converters, wherein the plurality of converters constitute a multi-level.

6. 发明公开

EP4318910A1 POWER CONVERSION DEVICE HAVING MULTI-LEVEL STRUCTURE 审中-实审
公开(公告)号：EP4318910A1
公开(公告)日：2024-02-07
申请号：EP22776174.9
申请日：2022-03-25
申请人： LG Innotek Co., Ltd.
发明人： JUNG, Kwang Soon , PARK, Jeong Heum
IPC分类号： H02M3/158 , H02M3/07 , H02S40/30 , H02M1/00
摘要： A power conversion device according to one embodiment of the present invention comprises: a plurality of converters that are each connected to a plurality of cell strings; and a plurality of auxiliary power supply units for supplying driving power to each of the plurality of converters by using the voltage output from each cell string, wherein the plurality of converters have a multi-level structure.

7. 发明授权

EP3723281B1 POWER WIRING DEVICE 有权
公开(公告)号：EP3723281B1
公开(公告)日：2023-09-06
申请号：EP18884984.8
申请日：2018-11-05
发明人： YOSHIDA, Masayoshi , KOJIMA, Kiyoshige
IPC分类号： H02S40/36 , H02S10/20 , H02S40/30

8. 发明公开

EP4210189A1 REGULATING POWER BETWEEN POWER SOURCES IN A PHOTOVOLTAIC POWER SYSTEM 审中-实审
公开(公告)号：EP4210189A1
公开(公告)日：2023-07-12
申请号：EP23150476.2
申请日：2023-01-05
申请人： Solaredge Technologies Ltd.
发明人： SHKOURY, Roy , GIDON, Ohad , EITAN, Gideon
IPC分类号： H02J1/10 , H02M1/00 , H02S40/30 , H02S50/00 , G05F1/67
摘要： A power system may comprise a plurality of power sources, each connected to a corresponding power regulator. The power regulators may be connected in series or in parallel, and may form a string. Each power regulator may comprise input terminals connected to the corresponding power source, output terminals, and a power converter that may be configured to convert input power from the corresponding power source to output power. The power regulator may further comprise a regulator communications module that may be configured to receive a power regulation indication relating to regulating an operational characteristic of the power regulator. The regulator controller may be configured to instruct the power converter to increase or decrease the regulator operational characteristic based on the power regulation indication, and based on power production characteristics of the power regulator.

9. 发明公开

EP4096049A1 PHOTOVOLTAIC POWER GENERATION SYSTEM AND METHOD FOR CONTROLLING POWER BALANCE 审中-公开
公开(公告)号：EP4096049A1
公开(公告)日：2022-11-30
申请号：EP22161810.1
申请日：2022-03-14
申请人： Sungrow Power Supply Co., Ltd.
发明人： ZHUANG, Jiacai , LIU, Wei , XU, Jun
IPC分类号： H02J3/38 , H02S40/30
摘要： A photovoltaic power generation system and a method for controlling power balance are provided. The system includes at least two photovoltaic arrays, at least one power balance circuit and a power converter. Each of input ports of the power balance circuit is connected with at least one photovoltaic array, and an output port of the power balance circuit is connected with the power converter. The power balance circuit performs power transfer based on a difference between output powers of the two photovoltaic arrays to control a difference between powers of two output terminals of the power balance circuit to be within a preset range.

10. 发明公开

EP3926820A1 COMPONENT VOLTAGE LIMITING CIRCUIT AND DEVICE APPLYING SAME 审中-公开
公开(公告)号：EP3926820A1
公开(公告)日：2021-12-22
申请号：EP19858662.0
申请日：2019-05-13
申请人： Sungrow Power Supply Co., Ltd.
发明人： CAO, Renxian , YANG, Zongjun
IPC分类号： H02S40/30 , H02J3/38
摘要： A circuit for component voltage limitation and an apparatus for applying the same. A detection-and-control unit detects a parameter of a photovoltaic-cell string, and controls operation of a switch unit according to the parameter of the photovoltaic-cell string. The switch unit controls, according to control of the detection-and-control unit, at least one photovoltaic cell connected to the switch unit to operate in the voltage-limited mode, or a photovoltaic cell operating in a voltage-limited mode to resume a normal output. In a case that the switch unit controls the at least one photovoltaic cell connected to the switch unit to operate in the voltage-limited mode according to control of the detection-and-control unit, a voltage of the photovoltaic-cell string can be reduced. Thereby, a quantity of photovoltaic modules connected in series can be increased while the highest voltage of the system is guaranteed not to exceed a corresponding requirement, and a cost of the system is reduced. In a case that that the switch unit controls the photovoltaic cell operating in the voltage-limited mode to resume the normal output according to control of the detection-and-control unit, an output voltage of the photovoltaic-cell string can be increased. Thereby, the rate of utilization on the direct voltage and the PVIR of DC/AC are improved for the photovoltaic system.

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