公开(公告)号：EP4372947A1

公开(公告)日：2024-05-22

申请号：EP21953699.2

申请日：2021-08-17

申请人： Huawei Digital Power Technologies Co., Ltd.

发明人： YAO, Xiaofeng ,  GU, Guilei

IPC分类号： H02J3/38 ,  H02S40/32

CPC分类号： Y02E10/56 ,  H02S40/32 ,  H02J3/38

摘要： This application discloses a photovoltaic system and a control method. The system includes a plurality of first converters, a second converter, an inverter, and a controller. The controller obtains a sum of input voltages of the plurality of first converters connected in series to each other; when the sum of the input voltages of the plurality of first converters is greater than a first voltage, adjusts the output voltage of the first converter, so that the sum of the input voltages of the first converters is less than or equal to the first voltage; and when the sum of the input voltages of the first converters is less than a second voltage, adjusts an output voltage of the second converter, so that the output voltage of the second converter is greater than or equal to the second voltage, and the first converters keep in a state of adjusting the input voltages based on power. According to the photovoltaic system provided in this application, a quantity of photovoltaic modules in a photovoltaic string can be flexibly configured, so that a photovoltaic module configuration in the photovoltaic string is not limited by an input voltage limit of the inverter, and an overall energy yield of the photovoltaic system is increased.

公开(公告)号：EP4365957A1

公开(公告)日：2024-05-08

申请号：EP22205388.6

申请日：2022-11-03

申请人： ETA SA Manufacture Horlogère Suisse

发明人： KLOPFENSTEIN, François ,  BAILAT, Julien

IPC分类号： H01L31/02 ,  G05F1/67 ,  H01L31/0465 ,  H01L31/05 ,  H02S40/32 ,  H02S40/34

CPC分类号： H01L31/02021 ,  H02S40/32 ,  H02S40/34 ,  G05F1/67 ,  H01L31/0465 ,  H01L31/0508 ,  H01L31/0516

摘要： La présente invention concerne un ensemble (10) à cellules photovoltaïques (2, 12). L'ensemble (10) comprend au moins une couche conductrice (21, 23; 25, 25') sur une face de dessus du substrat (22; 28) ou une face de dessous du substrat (22; 28) pour établir un contact électrique des cellules photovoltaïques (2, 12). Il est prévu au moins une première cellule photovoltaïque (2) de grande taille pour capter de l'énergie lumineuse à convertir en énergie électrique dans un module (1). Au moins une seconde cellule photovoltaïque (12) est prévue de petite taille et indépendante de la première cellule photovoltaïque (2). Elle est agencée pour mesurer dans le module (1) une tension ou un courant pour optimiser le fonctionnement du module (1).

公开(公告)号：EP3164938B1

公开(公告)日：2018-12-12

申请号：EP15745243.4

申请日：2015-07-01

申请人： ArcelorMittal

发明人： VIGNAL, Renaud ,  GERON, Laurent

IPC分类号： H02S20/23 ,  H02S40/36

CPC分类号： H02S40/36 ,  H01L31/03926 ,  H01L31/042 ,  H01L31/046 ,  H01L31/1876 ,  H02S20/23 ,  H02S20/25 ,  H02S40/32 ,  Y02B10/12 ,  Y02B10/14 ,  Y02E10/50

公开(公告)号：EP3387678A1

公开(公告)日：2018-10-17

申请号：EP16820083.0

申请日：2016-12-08

申请人： Alta Devices, Inc.

发明人： FRANCE, Christopher Earl ,  YANG, Linlin ,  LAN, Liguang

IPC分类号： H01L31/05 ,  H02S40/36

CPC分类号： H02S40/36 ,  H01L31/02013 ,  H01L31/022425 ,  H01L31/022466 ,  H01L31/0304 ,  H01L31/03926 ,  H01L31/046 ,  H01L31/0504 ,  H01L31/1876 ,  H01L51/0097 ,  H01L51/441 ,  H01L51/445 ,  H02S40/32 ,  H02S40/38 ,  Y02E10/549

摘要： A flexible circuit that allows a standardized connection interface to connect flexible solar cell(s) for easy integration into electronics devices. This interconnection scheme does not limit the intrinsic solar cell flexibility and may conform to standard design practices in electronic device manufacturing. In an aspect, a solar module is described that includes one or more solar panels and a flexible trace or interconnect having conductive wires inside an insulation material. In another aspect, an electronic device is described that includes a circuit board, one or more solar panels and a flexible trace or interconnect having conductive wires inside an insulation material. The electronic device may be an internet-of-things (IoT) device or an unmanned aerial vehicle (UAV), for example. In yet another aspect, a lighting module is described that includes one or more lighting panels and a flexible trace or interconnect having conductive wires inside an insulation material.

公开(公告)号：EP3041110B1

公开(公告)日：2018-08-29

申请号：EP15199425.8

申请日：2015-12-10

申请人： Sungrow Power Supply Co., Ltd.

发明人： Pan, Nianan ,  Cheng, Lin ,  Tao, Lei

IPC分类号： H02J3/38 ,  H02S40/32 ,  H02M7/493 ,  H02M1/12

CPC分类号： H02J3/383 ,  H02J3/385 ,  H02M7/44 ,  H02M7/493 ,  H02M2001/123 ,  H02S40/32 ,  Y02E10/563 ,  Y02E10/58

摘要： A control method and apparatus for photovoltaic inverters connected in parallel at an AC side are provided, the method is applied for an inverter system in which inverters are connected in parallel at an AC side and independent from each other at a DC side, where an input terminal of the first inverter is connected with a first PV array, an input terminal of the second inverter is connected with a second PV array, each of the first PV array and the second PV array has a parasitic capacitance to ground, and the first inverter and the second inverter form a common-mode loop by coupling with the parasitic capacitances, where the method includes the following steps: detecting a first direct voltage of the first inverter and a second direct voltage of the second inverter; obtaining a difference between the first direct voltage and the second direct voltage; and adjusting the direct voltages of the inverters to control the difference to be within a predetermined range and control a common-mode voltage in the common-mode loop to be within a predetermined common-mode voltage range. The smaller the difference between direct voltages of the inverters is, the smaller the common-mode voltage difference between the inverters is, and the smaller the common-mode current is, thereby restraining the common-mode circulation current between the inverters.

公开(公告)号：EP3364514A1

公开(公告)日：2018-08-22

申请号：EP17202503.3

申请日：2017-11-20

申请人： Omron Corporation

发明人： TSUBOTA, Yasuhiro ,  KOBAYASHI, Kenji ,  KUMAGAI, Takuji ,  MAKI, Naoki ,  TSUCHIMICHI, Kazumi

IPC分类号： H02J3/38

CPC分类号： H02M3/335 ,  H02J3/383 ,  H02M1/00 ,  H02M7/537 ,  H02M2001/0048 ,  H02S40/32 ,  Y02E10/563

摘要： A power supply system (100, 200, 300, 400, 500,), comprising:
a solar cell (110);
a non-isolated type DC/DC converter (120), boosting a DC voltage from the solar cell (110) input from an input end with a predetermined boosting ratio and outputting a DC voltage from an output end; and
an inverter (31), converting the DC voltage output from an output end of the DC/DC converter (120) into an AC voltage, the power supply system (100, 200, 300, 400, 500,) being connected to an external power system for system interconnection,
wherein the power supply system (100, 200, 300, 400, 500,) comprises a potential adjustment device (130, 131, 132, 133, 134, 135, 136, 137, 138) for applying a voltage of an external power system to the solar cell (110) via the inverter (31) to set a ground potential of a negative electrode of the solar cell (110) to positive when an output of the solar cell (110) is smaller than a predetermined value.

公开(公告)号：EP3360223A1

公开(公告)日：2018-08-15

申请号：EP16785065.0

申请日：2016-10-07

申请人： Johnson Controls Technology Company

发明人： WENZEL, Michael ,  ELBSAT, Mohammad ,  DREES, Kirk

IPC分类号： H02J3/14 ,  H02J3/32 ,  H02J3/38

CPC分类号： H02J7/007 ,  H02J3/00 ,  H02J3/14 ,  H02J3/32 ,  H02J3/381 ,  H02J7/35 ,  H02J13/0086 ,  H02J2003/007 ,  H02S40/32 ,  Y02B70/3225 ,  Y02E40/72 ,  Y02E40/76 ,  Y02E60/76 ,  Y04S10/123 ,  Y04S10/545 ,  Y04S20/222 ,  Y04S40/22

摘要： A frequency response optimization system includes a battery configured to store and discharge electric power, a power inverter configured to control an amount of the electric power stored or discharged from the battery at each of a plurality of time steps during a frequency response period, and a frequency response controller. The frequency response controller is configured to receive a regulation signal from an incentive provider, determine statistics of the regulation signal, use the statistics of the regulation signal to generate an optimal frequency response midpoint that achieves a desired change in a state-of-charge (SOC) of the battery while participating in a frequency response program, and use the midpoints to determine optimal battery power setpoints for the power inverter. The power inverter is configured to use the optimal battery power setpoints to control the amount of the electric power stored or discharged from the battery.

公开(公告)号：EP3324509A4

公开(公告)日：2018-07-25

申请号：EP16834646

申请日：2016-08-09

申请人： HUAWEI TECH CO LTD

发明人： XIN KAI ,  GUO HAIBIN ,  GAO YONGBING

IPC分类号： H02J3/38 ,  H02J3/00

CPC分类号： H02J3/385 ,  H02J3/38 ,  H02J3/383 ,  H02J2003/001 ,  H02M7/5395 ,  H02S40/32

摘要： The present invention provides a low voltage ride-through control system for a multi-inverter grid-connected power converter, including: a photovoltaic array and an inverter. The inverter includes a DC/DC conversion unit and a DC/AC inversion unit connected to an output end of the DC/DC conversion unit, an input end of the DC/DC conversion unit is connected to an output end of the photovoltaic array, and the inverter is connected to a power grid at a grid-connected point. The inverter further includes a low voltage ride-through detection unit and a low voltage ride-through control unit. The low voltage ride-through detection unit is configured to detect an amplitude of a voltage of the power grid at the grid-connected point, to determine whether to trigger low voltage ride-through. The low voltage ride-through control unit is configured to lower an input voltage of the DC/DC conversion unit when it is determined to trigger the low voltage ride-through, to lower an output voltage of the photovoltaic array, so that the output voltage of the photovoltaic array is less than a voltage of maximum power point tracking when the inverter operates in a steady state.

公开(公告)号：EP3304729A1

公开(公告)日：2018-04-11

申请号：EP16804436.0

申请日：2016-06-02

申请人： Ja Solar USA

发明人： GALITEV, Teodor ,  SHAN, Wei

IPC分类号： H02S40/34 ,  H02S40/32 ,  H01L31/042

CPC分类号： H02S40/34 ,  H02S40/32

摘要： Embodiments of the present disclosure are directed to a universal junction box for solar modules that comprises multiple sub-assemblies with a replaceable diode black and an open-IP plug sub-assembly. The universal junction box includes a first sub-assembly (junction box platform), a second sub-assembly (a replaceable diode block), and a third sub-assembly (an open sub-assembly or plug sub-assembly). If the electronics in the diode block becomes defective, a new replaceable diode block can be used to substitute into the defective diode black without having to replace the entire junction box. The open-IP plug sub-assembly provides the flexibility to couple a variety of cable sub-assembly or IMEs to the universal junction box as long as a particular selected cable sub-assembly fits with the dimension of the open-IP plug sub-assembly.

公开(公告)号：EP3172833A4

公开(公告)日：2018-03-28

申请号：EP14898110

申请日：2014-07-22

申请人： WENCON DEV INC DBA QUICK MOUNT PV

发明人： LEMOS ROBERT A ,  MENTON DUANE

IPC分类号： H02S20/00 ,  H02S40/32

CPC分类号： H02S20/20 ,  H02S40/32

摘要： A bracket assembly for mounting a plurality of photovoltaic (PV) accessories, the bracket assembly comprises a first bracket and a second bracket. The first bracket comprises a first clamp member and a second clamp member attached by means of a tightening means. The first clamp member includes a first plate and a second plate with an opening being attached to form an angle therebetween. The second clamp member includes a clamp plate with a slot and a pair of flanges. The second bracket comprises an attachment structure having a pair of outer channels with a structural member connected therebetween and a middle channel attached and positioned at a lower plane with the structural member, a pair of arms and a plurality of flanges attached to a distal end of the pair of outer channels, the middle channel and the pair of arms.