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1. WO2010024974 - GLOBAL SOLAR TRACKING SYSTEM

Publication Number WO/2010/024974
Publication Date 04.03.2010
International Application No. PCT/US2009/050495
International Filing Date 14.07.2009
IPC
F24J 2/38 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
JPRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
2Use of solar heat, e.g. solar heat collectors
38employing tracking means
F24J 2/40 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
JPRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
2Use of solar heat, e.g. solar heat collectors
40Control arrangements
G01J 1/20 2006.1
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1Photometry, e.g. photographic exposure meter
10by comparison with reference light or electric value
20intensity of the measured or reference value being varied to equalise their effects at the detector, e.g. by varying incidence angle
H01L 31/042 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength, or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
04adapted as photovoltaic conversion devices
042PV modules or arrays of single PV cells
CPC
F24S 50/20
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
50Arrangements for controlling solar heat collectors
20for tracking
G01J 1/0266
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1Photometry, e.g. photographic exposure meter
02Details
0266Field-of-view determination; Aiming or pointing of a photometer; Adjusting alignment; Encoding angular position; Size of the measurement area; Position tracking; Photodetection involving different fields of view for a single detector
G01J 2001/4266
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1Photometry, e.g. photographic exposure meter
42using electric radiation detectors
4266for measuring solar light
H01L 31/0543
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
04adapted as photovoltaic [PV] conversion devices
054Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
0543comprising light concentrating means of the refractive type, e.g. lenses
H01L 31/0547
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
04adapted as photovoltaic [PV] conversion devices
054Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
0547comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
H02S 20/00
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
20Supporting structures for PV modules
Applicants
  • SOLFOCUS, INC. [US]/[US] (AllExceptUS)
  • XIE, Qiang [CN]/[US] (UsOnly)
  • COWLEY, Sam [US]/[US] (UsOnly)
Inventors
  • XIE, Qiang
  • COWLEY, Sam
Agents
  • TALWALKAR, Nandu, A.
Priority Data
12/200,08628.08.2008US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) GLOBAL SOLAR TRACKING SYSTEM
(FR) SYSTÈME DE SUIVI SOLAIRE MONDIAL
Abstract
(EN) A system may include determination of whether solar tracking of a first period of time is to be performed in a first region of sky or in a second region of sky, determination of a target tracker position in a first coordinate system if the solar tracking of the first period of time is to be performed in the first region of sky, and determination of the target tracker position in a second coordinate system if the solar tracking of the first period of time is to be performed in the second region of sky. In some aspects, determination of the target tracker position in the second coordinate system includes subtracting 360° from an azimuth angle in the first coordinate system if the azimuth angle in the first coordinate system is between +180° and +360°, wherein the azimuth angle in the second coordinate system is determined to be equal to the azimuth angle in the first coordinate system if the azimuth angle in the first coordinate system is between 0° and +180°.
(FR) L’invention concerne un système permettant de déterminer si le suivi solaire d’une première période doit se faire dans une première région du ciel ou dans une seconde région du ciel, de déterminer une position de suiveur cible dans un premier système de coordonnées si le suivi solaire de la première période doit se faire dans la première région du ciel, et de déterminer une position de suiveur cible dans un second système de coordonnées si le suivi solaire de la première période doit se faire dans la seconde région du ciel. Selon certains aspects, la détermination de la position du suiveur cible dans le second système de coordonnées consiste à soustraire 360° d’un angle d’azimut dans le premier système de coordonnées si l’angle d’azimut dans le premier système de coordonnées se situe entre +180° et +360°, l’angle d’azimut dans le second système de coordonnées étant égal à l’angle d’azimut dans le premier système de coordonnées si l’angle d’azimut dans le premier système de coordonnées se situe entre 0° et +180°.
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