MA42559B1 - Calibration of heliostats of a thermoelectric solar power plant - Google Patents

Calibration of heliostats of a thermoelectric solar power plant

Info

Publication number
MA42559B1
MA42559B1 MA42559A MA42559A MA42559B1 MA 42559 B1 MA42559 B1 MA 42559B1 MA 42559 A MA42559 A MA 42559A MA 42559 A MA42559 A MA 42559A MA 42559 B1 MA42559 B1 MA 42559B1
Authority
MA
Morocco
Prior art keywords
heliostat
image
dimensional coordinates
heliostats
image captured
Prior art date
Application number
MA42559A
Other languages
French (fr)
Other versions
MA42559A1 (en
Inventor
Sánchez Pablo Climent
Markus Schramm
Escatllar Irene Oña
Original Assignee
Abengoa Solar New Tech
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Abengoa Solar New Tech filed Critical Abengoa Solar New Tech
Publication of MA42559A1 publication Critical patent/MA42559A1/en
Publication of MA42559B1 publication Critical patent/MA42559B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F24S50/20—Arrangements for controlling solar heat collectors for tracking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F24S50/20—Arrangements for controlling solar heat collectors for tracking
    • F24S2050/25—Calibration means; Methods for initial positioning of solar concentrators or solar receivers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)

Abstract

Un procédé d’étalonnage d’un héliostat d’un champ d’héliostats comprend un procédé visant à fournir une transformation linéaire pour convertir des coordonnées tridimensionnelles en coordonnées bidimensionnelles dans des pixels d’une image ; obtenir les coordonnées tridimensionnelles réelles des points des coins de la surface réfléchissante de chaque héliostat ; pour une image capturée par un premier dispositif de prise d’images et une image capturée par un second dispositif de prise d’images à un moment déterminé, obtenir les coordonnées bidimensionnelles des points des coins de la surface réfléchissante ; identifier le contour de la surface réfléchissante de chaque héliostat dans chaque image ; identifier une région d’intérêt dans chaque image. Pour chaque héliostat choisi, ledit procédé consiste à obtenir un premier paramètre de l’intensité des pixels de la région d’intérêt correspondant à l’héliostat dans l’image capturée par le premier dispositif ; obtenir un second paramètre relatif à l’intensité des pixels de la région d’intérêt correspondant à l’héliostat dans l’image capturée par le second dispositif ; déterminer des réglages à appliquer à l’héliostat ; appliquer lesdits réglages.A method of calibrating a heliostat of a heliostats field includes a method of providing a linear transformation to convert three-dimensional coordinates to two-dimensional coordinates in pixels of an image; obtaining the actual three-dimensional coordinates of the points of the corners of the reflecting surface of each heliostat; for an image captured by a first imaging device and an image captured by a second imaging device at a specified time, obtaining the two-dimensional coordinates of the points of the corners of the reflecting surface; identify the contour of the reflecting surface of each heliostat in each image; identify a region of interest in each image. For each selected heliostat, said method consists of obtaining a first parameter of the intensity of the pixels of the region of interest corresponding to the heliostat in the image captured by the first device; obtain a second parameter relating to the intensity of the pixels of the region of interest corresponding to the heliostat in the image captured by the second device; determine the settings to be applied to the heliostat; apply said settings.

MA42559A 2015-10-16 2015-10-16 Calibration of heliostats of a thermoelectric solar power plant MA42559B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2015/070754 WO2017064339A1 (en) 2015-10-16 2015-10-16 Calibration of heliostats of a thermo-electric solar energy plant

Publications (2)

Publication Number Publication Date
MA42559A1 MA42559A1 (en) 2018-10-31
MA42559B1 true MA42559B1 (en) 2020-09-30

Family

ID=54707804

Family Applications (1)

Application Number Title Priority Date Filing Date
MA42559A MA42559B1 (en) 2015-10-16 2015-10-16 Calibration of heliostats of a thermoelectric solar power plant

Country Status (5)

Country Link
CN (1) CN108291742B (en)
ES (1) ES2671847B1 (en)
MA (1) MA42559B1 (en)
WO (1) WO2017064339A1 (en)
ZA (1) ZA201803173B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11017561B1 (en) * 2018-10-09 2021-05-25 Heliogen, Inc. Heliostat tracking based on circumsolar radiance maps
CN109885106B (en) * 2019-03-29 2022-02-11 西安微电子技术研究所 Heliostat installation and transmission error calibration system and method
CN110059592B (en) * 2019-03-29 2021-01-08 浙江中控太阳能技术有限公司 Multi-camera-based mirror field cloud blocking detection method and device
US11732928B1 (en) 2019-09-09 2023-08-22 Heliogen Holdings, Inc. Gas receiver for capturing solar energy
CN114877543B (en) * 2022-04-19 2023-04-28 东方电气集团东方锅炉股份有限公司 Tower type photo-thermal power station heliostat scheduling method based on heat absorber temperature control

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL114261A0 (en) * 1995-06-22 1995-10-31 Yeda Res & Dev System for control of heliostat field
EP2212626A4 (en) * 2007-10-24 2014-01-08 Esolar Inc Calibration and tracking control of heliostats in a central tower receiver solar power plant
US20110120448A1 (en) * 2009-11-25 2011-05-26 Google Inc. Heliostat control scheme using cameras
US20110317876A1 (en) * 2010-06-23 2011-12-29 Bender William H Optical Control System for Heliostats
US20120174909A1 (en) * 2011-01-07 2012-07-12 Ross Koningstein Heliostat Control Scheme Using Cameras
US20130021471A1 (en) * 2011-07-21 2013-01-24 Google Inc. Reflective Surface Orientating with Multiple View Ports
CN102506810B (en) * 2011-10-18 2014-11-12 邵文远 Heliostat angle deviation detection method for tower type solar thermal power generation system
US9222702B2 (en) * 2011-12-01 2015-12-29 Brightsource Industries (Israel) Ltd. Systems and methods for control and calibration of a solar power tower system

Also Published As

Publication number Publication date
ES2671847R1 (en) 2018-07-05
ES2671847A2 (en) 2018-06-08
CN108291742B (en) 2020-05-22
ES2671847B1 (en) 2019-05-14
WO2017064339A1 (en) 2017-04-20
CN108291742A (en) 2018-07-17
MA42559A1 (en) 2018-10-31
ZA201803173B (en) 2020-05-27

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