公开(公告)号：US20240283402A1

公开(公告)日：2024-08-22

申请号：US18570848

申请日：2022-06-17

申请人： NEWSOUTH INNOVATIONS PTY LIMITED

发明人： Oliver KUNZ ,  Germain Antoine REY ,  Thorsten TRUPKE ,  Mattias JUHL

IPC分类号： H02S50/15 ,  G01N21/64 ,  G01N21/88

CPC分类号： H02S50/15 ,  G01N21/6456 ,  G01N21/6489 ,  G01N21/8806 ,  G01N2021/8809 ,  G01N2021/8835

摘要： Methods and apparatus are presented for determining data indicative of a photoluminescence (PL) response to solar irradiation from at least one photovoltaic module in a first string of series-connected modules that is one of a plurality of parallel-connected strings connected to an operating inverter. Two or more signals from a module in the first string are measured while modulating its operating point by modulating the illumination intensity incident on selected portions of one or more modules in that string. Measured signals are processed to determine data indicative of a PL response from the module, discriminating the response from the much brighter reflected sunlight. Importantly, this approach has an extended effect whereby modulating the illumination incident on a subset of modules in a string affects the operating point (PL intensity) of all modules in the string, offering increased throughput, reduced cost and improved versatility for outdoor PL imaging of photovoltaic arrays.

公开(公告)号：US20240235475A1

公开(公告)日：2024-07-11

申请号：US18504459

申请日：2023-11-08

申请人： University of Central Florida Research Foundation, Inc.

发明人： Hubert Seigneur ,  Ryan Smith

IPC分类号： H02S50/15 ,  G06T7/00 ,  H04N23/20

CPC分类号： H02S50/15 ,  G06T7/0002 ,  H04N23/20 ,  G06T2207/10048 ,  G06T2207/10144 ,  G06T2207/20216 ,  G06T2207/20224

摘要： Photoluminescence and electroluminescence are essential characterization techniques for photovoltaics cells and modules. For electroluminescence, the main technical challenge is easily injecting current into the photovoltaic to cause luminescence. The technique described herein enables daylight electroluminescence imaging without the need for external power sources. For photoluminescence, characterization is performed on photovoltaic cells, modules, strings, and arrays in daylight and without temporary mounting of LED modulators. Instead, the modulation is performed using a permanent electronic module installed within the electric circuit on the DC side. This enables automation or triggering of modulation on demand, 100% inspection without changes in hardware configuration because the cells are never shaded and provides a path to high throughput imaging.

公开(公告)号：US20240048099A1

公开(公告)日：2024-02-08

申请号：US18548307

申请日：2022-03-22

申请人： PASAN SA

发明人： Gilles ARNOUX ,  Nicolas BASSI ,  Nicolas FRICK ,  Derk BÄTZNER

IPC分类号： H02S50/15

CPC分类号： H02S50/15

摘要： Disclosed is a method for measuring and calculating a current-voltage curve and a current mismatch between junctions of a tandem solar cell, including at least two solar subcells, the method being performed under simulated solar irradiance according to the international standard illumination AM1.5. The method implies the illumination by a first broad-spectral band light source S1 and includes steps for calculating the necessary light intensities of narrow-band second and the third light sources. The steps of the method achieve to determine adapted gains for second and the third light sources, so that the combination of the light sources S21 and S22 provide the same test results of the solar cell as when illuminated with the first light source S1 only. Also disclosed is a solar cell test apparatus configured to realize the method of the invention.

公开(公告)号：US11840334B2

公开(公告)日：2023-12-12

申请号：US16960151

申请日：2018-01-24

申请人： HONEYWELL INTERNATIONAL INC.

发明人： Shyh Pyng Jack Shue ,  Chao Li

IPC分类号： B64C39/02 ,  G06T7/00 ,  H02S50/15 ,  H04N5/33 ,  B64U101/30

CPC分类号： B64C39/024 ,  G06T7/0002 ,  H02S50/15 ,  B64U2101/30 ,  H04N5/33

摘要： A method for detecting a fault in a solar panel in a solar farm is disclosed. In some examples, the method includes obtaining, by a computing system (106), a first image of the solar panel captured by an unmanned aerial vehicle (UAV) (102) during a first flight and a second image of the solar panel captured by the UAV (102) during a second flight. In some examples, the method also includes determining, by the computing system (106), a first score for the solar panel based on the first image and determining a second score for the solar panel based on the second image. In some examples, the method further includes determining, by the computing system (106), whether the solar panel has the fault based on the first score and the second score and outputting an indication that the solar panel has the fault in response to determining that the solar panel has the fault.

公开(公告)号：US11799421B2

公开(公告)日：2023-10-24

申请号：US16976536

申请日：2019-02-19

申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

发明人： Kenji Saito ,  Takashi Iwasaki

IPC分类号： H02S50/15 ,  H02S20/32 ,  H02S40/32 ,  B64C39/02 ,  G01M11/02 ,  G01S3/786 ,  G01N21/95 ,  B64U101/00

CPC分类号： H02S50/15 ,  B64C39/024 ,  G01M11/0207 ,  G01S3/7861 ,  H02S20/32 ,  H02S40/32 ,  B64U2101/00 ,  G01N21/95

摘要： This inspection system for a concentrator photovoltaic apparatus includes: a module; a tracking mount configured to track the sun, the tracking mount having mounted thereto an array formed by assembling a plurality of the modules; an inverter apparatus to extract a direct-current power generated by the array, convert the direct-current power into an alternating-current power, and output the alternating-current power; and an imaging apparatus being positioned between the sun and the array tracking the sun, the imaging apparatus taking an image of the array from a direction orthogonal to a surface of the array. While the array is tracking the sun and is causing sunlight to be concentrated on the cell, the inverter apparatus produces a state where extraction of a power from the array is restricted, to cause the cell to spontaneously emit light, and the imaging apparatus takes an image of the emitted light of the cell.

公开(公告)号：US20230299717A1

公开(公告)日：2023-09-21

申请号：US18041438

申请日：2021-08-27

申请人： Forschungszentrum Jülich GmbH ,  Friedrich-Alexander-Universität Erlangen-Nürnberg

发明人： Bernd Doll ,  Ian Marius Peters ,  Claudia Buerhop-Lutz ,  Christoph Brabec

IPC分类号： H02S50/15 ,  G01N21/64 ,  H04N23/56 ,  H04N23/74 ,  B64D47/08 ,  B64D47/02

CPC分类号： H02S50/15 ,  G01N21/6456 ,  H04N23/56 ,  H04N23/74 ,  B64D47/08 ,  B64D47/02

摘要： A method for assessing solar cells having one or more light sources that are fastened to a fastening device, with the light sources movably fastened to the fastening device and/or a light intensity control, provided with which the light intensity of each light source can be changed independently of the other light sources, with a camera fastened to the fastening device, the method including: the fastening device is aligned relative to solar cells by the camera so that the camera axis of the camera is substantially perpendicular to the surface of the solar cells to be assessed, the light sources are aligned and/or the light intensity of the light sources are controlled that the solar cells are illuminated substantially uniformly, following the illumination that is substantially uniform, a photo of the solar cells is taken with the camera, the solar cells are assessed using the photo.

公开(公告)号：US20230231518A1

公开(公告)日：2023-07-20

申请号：US18186022

申请日：2023-03-17

申请人： Huawei Digital Power Technologies Co., Ltd. ,  SPIC Qinghai Photovoltaic Industry Innovation Center Co.,Ltd.

发明人： Jianqiang Wang ,  Yuandong Meng ,  Song Wan ,  Yanzhong Zhang ,  Feng Chong ,  Hualong Fan ,  Jiajia He ,  Shaopan Hou ,  Jie Zhang

IPC分类号： H02S50/15

CPC分类号： H02S50/15

摘要： A method and an apparatus (400) for performing fault detection, are provided includes: controlling, by a power station management system in a preset photovoltaic module order by using an inverter connected to a current to-be-detected photovoltaic module, the current to-be-detected photovoltaic module to be in a target status, and when determining that the current to-be-detected photovoltaic module is in the target status, controlling a mobile image capturing terminal to collect image data of the current to-be-detected photovoltaic module (S201), where the image data is used to detect a fault status of the current to-be-detected photovoltaic module; and when determining that the mobile image capturing terminal obtains the image data of the current to-be-detected photovoltaic module through collection, continuing, by the power station management system, to control, in the preset photovoltaic module order by using an inverter connected to a next to-be-detected photovoltaic module.

公开(公告)号：US20190245485A1

公开(公告)日：2019-08-08

申请号：US16385382

申请日：2019-04-16

申请人： Michael Gostein ,  William Stueve

发明人： Michael Gostein ,  William Stueve

IPC分类号： H02S50/15 ,  H02S50/00 ,  H01L31/042 ,  G01N15/06 ,  H02S40/10 ,  G01N21/94 ,  G01N21/47

CPC分类号： H02S50/15 ,  G01N15/0612 ,  G01N21/47 ,  G01N21/552 ,  G01N21/94 ,  G01N21/9501 ,  G01N2015/0046 ,  G01N2021/157 ,  G01N2021/4735 ,  G01N2201/061 ,  H01L31/042 ,  H02S40/10 ,  H02S40/30 ,  H02S50/00

摘要： A device comprising a transparent window, a photoemitter, a photodetector, and a measurement unit, wherein said photoemitter is configured to illuminate soiling particles accumulating on a surface of said transparent window, said photodetector is configured to generate a signal based on detection of light that passes through said transparent window and reflects and/or scatters from said soiling particles, and said measurement unit determines a soiling level of said transparent window based upon a measurement of said signal.

公开(公告)号：US20180375470A1

公开(公告)日：2018-12-27

申请号：US16013917

申请日：2018-06-20

申请人： CHROMA ATE INC.

发明人： Cheng-Ting TSAI ,  Lan-Sheng YANG

IPC分类号： H02S50/10 ,  G02B27/30 ,  H01L31/0224 ,  H01L31/048

CPC分类号： H02S50/10 ,  G02B27/30 ,  H01L31/022425 ,  H01L31/048 ,  H02S50/15

摘要： A method for inspecting a solar cell and configured to inspect a peeling state of a three-dimensional pattern of the solar cell includes obliquely illuminating the three-dimensional pattern of the solar cell using a light beam. An image of the solar cell is normally captured. An intensity of the light beam is increased to increase a contrast between the three-dimensional pattern and a shadow of the three-dimensional pattern in the image and increase a contrast between an ink pattern of the solar cell and the shadow in the image to overexpose the ink pattern in the image. Determine if the three-dimensional pattern is peeling according to the shadow of the three-dimensional pattern in the image.

公开(公告)号：US20180309405A1

公开(公告)日：2018-10-25

申请号：US15962827

申请日：2018-04-25

申请人： Analytical Mechanics Associates, Inc.

发明人： Todd Ferrante

IPC分类号： H02S50/15

CPC分类号： H02S50/15

摘要： An apparatus for inspecting a surface includes a housing and a probe. The housing includes a light source to direct light along a longitudinal axis and a shutter to selectively allow light to pass through to the probe. The probe includes a body portion and a head portion. The head portion of the probe includes a collector to detect photoelectrons emitted from the surface in response to light from the light source impinging on the surface. A proximal portion of the head portion moves relative to a distal portion of the head portion to allow for variations in angle relative to the surface.