WO2011131402A2 - Dispositif capteur et dispositif destiné à convertir la lumière solaire en une autre forme d'énergie - Google Patents

Dispositif capteur et dispositif destiné à convertir la lumière solaire en une autre forme d'énergie Download PDF

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Publication number
WO2011131402A2
WO2011131402A2 PCT/EP2011/053099 EP2011053099W WO2011131402A2 WO 2011131402 A2 WO2011131402 A2 WO 2011131402A2 EP 2011053099 W EP2011053099 W EP 2011053099W WO 2011131402 A2 WO2011131402 A2 WO 2011131402A2
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
sunlight
mirrors
mirror
energy
Prior art date
Application number
PCT/EP2011/053099
Other languages
German (de)
English (en)
Other versions
WO2011131402A3 (fr
Inventor
Volker Schulmayer
Kai Heinrich
Florian Klein
Original Assignee
Zf Friedrichshafen Ag
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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2011131402A2 publication Critical patent/WO2011131402A2/fr
Publication of WO2011131402A3 publication Critical patent/WO2011131402A3/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/785—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system
    • G01S3/786—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system the desired condition being maintained automatically
    • G01S3/7861—Solar tracking systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
    • F24S30/422—Vertical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
    • F24S30/425—Horizontal axis
    • 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
    • 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

Definitions

  • the invention relates to a sensor device for detecting the reflected sunlight of a plurality of movable mirrors of a device for converting sunlight into another form of energy, in which the mirrors are tracked by means of a tracking device so the sun, that these together the sunlight on a transducer device which the Sunlight into the other form of energy converts, reflect.
  • a sensor device is used for optimal alignment of the mirror on the converter device according to the current state of the sun in the sky (position of the sun).
  • the invention relates to a device for converting sunlight into another form of energy, with a plurality of movable mirrors, with a converter device and with a sensor device arranged between the mirrors and the converter device.
  • the mirrors are tracked to the position of the sun so that they reflect the sunlight together on the converter device, which converts the sunlight into the other form of energy.
  • the converter device converts the incident (or reflected) from the (sunlight) light, for example, into electrical energy or heat energy and can accordingly be designed, for example, as a fluid conduit system for heating the fluid or as a photovoltaic element for generating electrical power.
  • Such a sensor device and such a device for converting sunlight into another form of energy is known from DE 10 2008 008 403 A1.
  • the sensor device proposed here or the device proposed here for converting sunlight into another form of energy uses a linear photodiode array per mirror in order to align the orientation of the mirrors as precisely as possible with intensity distributions of the reflected sunlight to capture on the photodiode arrays.
  • the device thus requires a complicated evaluation of the intensity distributions.
  • a simple sensor device with only two photosensitive sensors for tracking a solar device, for example a mirror, according to the position of the sun is disclosed in DE 10 2006 010 419 A1.
  • This sensor device provides for a vertical alignment of the solar device to the light incident on the solar device, whereby this sensor device is not suitable for aligning a plurality of mirrors on a common focal point or a common transducer device.
  • a first object is therefore a sensor device for a device for converting sunlight into another form of energy, in which the mirrors are tracked by means of a tracking device so that they reflect the sunlight together on a transducer device, which is simple in construction and no elaborate sensor data evaluation needed.
  • Another object is to provide a device for converting sunlight into another form of energy, which also has these advantages.
  • the first object is achieved in that the sensor device for each of the mirrors has a first and a second sensor opening associated with this mirror and in each case a light-sensitive sensor recessed therein.
  • a depth in which the sensors are recessed in the sensor openings is greater than a height or a width of the sensor openings.
  • the inner walls of the sensor openings are preferably matt, in particular matt black, whereby light reflections within the sensor openings are significantly reduced and incident stray light can not or only to a slight extent penetrate to the photosensitive sensors.
  • At least one of the photosensitive sensors is designed in particular as a photodiode or CCD or CMOS sensor.
  • this photosensitive sensor is preferably designed as an infrared photodiode.
  • a one-part or multi-part sensor housing which has a convexly curved surface in which the sensor openings are arranged. This surface is preferably aligned in the direction of the mirror.
  • the sensor housing may be designed, for example, half-round, wherein the sensor openings are arranged in the rounding and aligned in the direction of the mirror, that is, the open sides of the sensor openings point in the direction of the respective mirror. The space required for the sensor device space requirement can be optimized thereby.
  • a one-piece or multi-part sensor housing which has a straight, that is not curved surface in which the sensor openings are arranged, whereby the sensor housing simple and inexpensive to produce.
  • the sensor housing can be designed in the shape of a bar or cuboid.
  • the sensor openings are designed in particular bore-like or slot-like, whereby the sensor openings are simple and inexpensive to produce, for example, by a machining of the sensor housing, in which the sensor openings are arranged.
  • the further object is achieved by a device for converting sunlight into another form of energy, with a plurality of movable mirrors, with a converter device and with the sensor device according to the invention described above.
  • the mirrors are tracked by means of a tracking device so that they reflect the sunlight together on the converter device, which converts the sunlight into the other form of energy.
  • the sensor device is arranged between the mirrors and the converter device, and the sensor openings associated with a mirror are oriented in the direction of this mirror such that the sunlight reflected by this mirror passes through these sensor openings onto the photosensitive sensors recessed therein.
  • the sensor openings are aligned with the mirrors such that sunlight reflected from the respective mirror only penetrates through both sensor openings to the photosensitive sensors when the mirror is optimally aligned with the converter device.
  • the two sensors are then irradiated with different intensities, or only one of the two sensors is directly irradiated by the reflected sunlight, and in poor alignment, neither of the two sensors is irradiated directly. If none of the sensors are irradiated directly, a search may be performed in which the mirror moves all or part of its trajectory until both sensors are again irradiated by the reflected sunlight. If the sensors are irradiated with different intensities , the respective mirror can be moved in the corresponding direction depending on which of the sensors is irradiated more intensively or less intensively until both sensors are irradiated again with the same intensity.
  • the search if none of the sensors is directly irradiated, is preferably carried out in dependence on the time of day and / or weather data, which excludes that the mirror unnecessary in the dark or in bad weather (heavy clouds, fog, rain, snow, etc. ) are moved.
  • the trajectory of the mirror during the search is preferably limited depending on the current time and optionally additionally depending on the current date, whereby only the part of the total possible trajectory is traversed, in which at this time is most likely the optimal orientation of the mirror.
  • the first of the sensor apertures associated with one of the mirrors is directed towards a first edge region of this mirror and the second of the sensor apertures associated with this mirror is directed toward a second edge region of this mirror, such that the sunlight reflected from the first edge region of the mirror passes through the first sensor opening onto the first photosensitive sensor recessed therein, and the sunlight reflected from the second edge region of the mirror passes through the second sensor opening onto the second photosensitive sensor recessed therein.
  • a longitudinal axis of the sensor opening extending between a light incidence opening of the sensor opening and the photosensitive sensor in each case extends through the edge region of the mirror assigned to this sensor opening.
  • the mirrors of the device for converting sunlight into another form of energy are tracked in particular by pivoting about substantially vertical pivot axes of the sun, so follow the sun's position by a pivoting movement between an east and west orientation (orientation in azimuth).
  • the mirrors are adjusted by pivoting.
  • ken are tracked to substantially horizontal pivot axes of the sun, so follow the sun's position by a pivoting movement between a horizontal and vertical orientation (orientation in elevation).
  • the sensor openings are then preferably slit-like with a substantially rectangular cross-section, wherein longer sides of the cross-sections extend parallel to the pivot axes of the mirror.
  • Fig. 1 is a two-dimensional view of a device for converting sunlight into another form of energy
  • Fig. 2 is a three-dimensional view of a device for the conversion of
  • the device shown in Fig. 1 for converting sunlight into another form of energy has three movable mirrors 1, 1 ', 1 ", each with a concave reflection surface, a sensor device 2, a transducer device 3 and a tracking device 4, wherein the sensor device 2 stationary with respect to the converter device 3.
  • Mirrors 1, 1 ', 1 ", sensor device 2 and converter device 3 extend perpendicularly beyond the plane of the drawing, the sensor device 2 having a smaller extent perpendicular to the plane of the drawing than the mirrors 1, 1', 1". and the converter device 3.
  • the sensor device 2 is thus arranged only in a small area in relation to the overall extent between the mirrors 1, 1 ', 1 "and the converter device 3.
  • the sensor device 2 is preferably arranged in the immediate vicinity of the converter device 3 or at least closer to the converter arrangement 3 than to the mirrors 1, 1 ', 1 "in order to minimize the space requirement of the sensor device 2.
  • the sensor device 2 preferably surrounds , or a sensor housing 2a of the sensor device 2, the transducer device 3, as shown, along a the converter device 3 extending circular or elliptical section.
  • the sensor housing 2a of the sensor device 2 has a first surface facing the transducer device 3 and a first curved surface facing the mirrors 1, 1 ', 1 "and a convexly curved second surface, in which sensor openings 2b, 2c, 2b', 2c ', 2b ", 2c" are arranged.
  • the reflection surfaces of the mirrors 1, 1 ', 1 "reflect the sunlight shining on the mirrors 1, 1', 1" from the sun 5 onto the sensor device 2 and onto the converter device 3, which transmits the light into another form of energy, for example electrical energy or heat energy, converts.
  • the mirrors 1, 1 ', 1 are aligned in the orientation shown to the transducer device 3 so that the sun 5 shown a maximum of reflected sunlight hits the transducer device 3.
  • the angle of incidence of sunlight on the mirror 1, 1 ', 1 changes, so they must be tracked to the sun, in order to continue to reflect a maximum of sunlight on the transducer device 3.
  • the tracking device 4 has on the mirrors 1, 1 ', 1 "arranged adjusting devices 4a, which track the mirrors 1, 1', 1" the sun's position by a pivoting movement about the perpendicular to the plane extending pivot axes 4b.
  • the pivot axes 4b can extend vertically or horizontally.
  • the tracking device 4 evaluates sensor signals of the sensor device 2 and, based thereon, carries out a reorientation or tracking of the mirrors 1, 1', 1" ,
  • the sensor housing 2a has for each mirror 1, 1 ', 1 "two slot-shaped sensor openings 2b, 2c, 2b', 2c ', 2b", 2c "in which each deepened a light-sensitive sensor 2d is arranged on the optimal orientation or the Misalignment of the respective mirror 1, 1 ', 1 "to the converter device 3 can be seen.
  • the sensor openings 2b, 2c, 2b ', 2c', 2b ", 2c” have rectangular cross sections; encryption Extensions of longitudinal axes of the sensor openings 2b, 2c, 2b ', 2c', 2b "meet at the center of the converter device 3.
  • the first sensor opening 2b is oriented in the direction of a first edge region 1a of the mirror 1 such that the sunlight reflected by this first edge region 1a passes through the first sensor aperture 2b on the photosensitive sensor 2d which is recessed therein with optimum alignment of the mirror 1
  • the second sensor opening 2c is oriented in the direction of a second edge region 1b of the mirror 1
  • the sunlight reflected by this second edge region 1a is at an optimal alignment of the mirror 1 to the sun 5 through this second sensor opening 2c recessed arranged photosensitive sensor 2d falls.
  • the longitudinal axes of the two sensor openings 2b, 2c thus run substantially parallel or coaxial with the light beams reflected from the respective edge regions 1a, 1b.
  • the mirrors 1, 1 ', 1 "track the position of the sun by pivoting movements and, accordingly, the positions of the edge regions 1 a, 1 b, 1 a', 1 b ', 1 a", 1 b "in FIG
  • the sensor openings 2b, 2c, 2b ', 2c', 2b “, 2c” must therefore be designed in such a way that that of the edge regions 1 a, 1 b, 1 a ', 1 b ', 1 a ", 1 b” regardless of their position on the photosensitive sensors 2 d falls, for example, by the sensor openings 2 b, 2 c, 2 b', 2 c ', 2 b “, 2 c" starting from the photosensitive sensors 2 d in the direction of the mirror 1, 1 ', 1 "(slightly) widen.
  • the photosensitive sensors 2 d always have direct "visual connections" through the respective sensor openings 2b, 2c, 2b ', 2c', 2b ", 2c" through to the respective edge regions 1 a, 1 b, 1 a ', 1 b', 1 a ", 1 b".
  • Fig. 2 shows a device for converting sunlight into another form of energy in three-dimensional view, which is carried out according to the device for converting sunlight into another form of energy of Fig. 1.
  • Identical components / elements are therefore provided with the same reference numerals. For the sake of simplicity, only one of a plurality of mirrors 1 is shown here and the converter device 3 is shown in section.
  • the transducer device 3 is formed as a fluid-filled tubular conduit system for heating this fluid.
  • the sensor device 2 is arranged semicircularly around the converter device 3 between the latter and the mirror 1 (or the mirrors), but only within a small region of the longitudinal extent of the converter device 3.
  • the sensor openings 11 have rectangular cross sections, longer sides of the device cross sections parallel to a longitudinal axis 3a of the transducer device 3 and parallel to the pivot axis 4b of the mirror 1 (or the pivot axes of the mirror).

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Energy (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)

Abstract

L'invention concerne un dispositif capteur (2) destiné à capter la lumière solaire réfléchie par plusieurs miroirs mobiles (1, 1', 1") d'un dispositif destiné à convertir la lumière solaire en une autre forme d'énergie, les miroirs (1, 1', 1") étant orientés au moyen d'un dispositif d'orientation (4) en fonction de la position du soleil de telle manière que ceux-ci réfléchissent ensemble la lumière solaire vers un dispositif de conversion (3) qui convertit la lumière solaire en une autre forme d'énergie. L'invention concerne également un dispositif destiné à convertir la lumière solaire en une autre forme d'énergie. Selon l'invention, le dispositif capteur (2) présente pour chacun des miroirs (1, 1', 1") une première et une deuxième ouverture (2b, 2c, 2b', 2c', 2b'', 2c'') associée à ce miroir (1, 1', 1") et dans celles-ci un capteur (2d) sensible à la lumière disposé en profondeur.
PCT/EP2011/053099 2010-04-21 2011-03-02 Dispositif capteur et dispositif destiné à convertir la lumière solaire en une autre forme d'énergie WO2011131402A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010028027.5 2010-04-21
DE102010028027A DE102010028027A1 (de) 2010-04-21 2010-04-21 Sensorvorrichtung und Vorrichtung zur Umwandlung von Sonnenlicht in eine andere Energieform

Publications (2)

Publication Number Publication Date
WO2011131402A2 true WO2011131402A2 (fr) 2011-10-27
WO2011131402A3 WO2011131402A3 (fr) 2012-01-05

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PCT/EP2011/053099 WO2011131402A2 (fr) 2010-04-21 2011-03-02 Dispositif capteur et dispositif destiné à convertir la lumière solaire en une autre forme d'énergie

Country Status (2)

Country Link
DE (1) DE102010028027A1 (fr)
WO (1) WO2011131402A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103472858A (zh) * 2013-09-17 2013-12-25 赖中安 高精度全自动太阳跟踪控制器
CN109539598A (zh) * 2018-10-16 2019-03-29 北京拉夫堡太阳能技术有限公司 一种槽式太阳能装置的跟踪控制方法及系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006010419A1 (de) 2006-03-04 2007-09-06 Johann Schilcher Messgerät zur Lichteinfallswinkelmessung sowie solartechnische Nachführeinrichtung
DE102008008403A1 (de) 2008-02-09 2009-08-13 Robert Bosch Gmbh Solarkraftwerk mit einer Spiegelnachführung mit Lichtsensoren

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
DE2711570A1 (de) * 1977-03-17 1978-09-21 Peter Schlueter Vorrichtung zur sonnenstandabhaengigen verstellung von lichtreflektoren fuer solarheizungen
US4227513A (en) * 1978-10-23 1980-10-14 Atlantic Richfield Company Solar system having improved heliostat and sensor mountings
DE3821743A1 (de) * 1988-06-28 1990-01-11 Bosch Gmbh Robert Sensor zur erfassung der einstrahlung
DE9010622U1 (fr) * 1990-07-14 1990-09-20 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe, De
DE19630201C1 (de) * 1996-07-26 1997-10-02 Andreas Muehe Selbstausrichtender Heliostat für Solar-Turmkraftwerk
DE102008008402A1 (de) * 2008-02-09 2009-08-13 Robert Bosch Gmbh Solarkraftwerk mit sensorgestützter Justagemöglichkeit
DE102008039692A1 (de) * 2008-08-26 2010-03-04 Pse Gmbh Sonnenkollektor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006010419A1 (de) 2006-03-04 2007-09-06 Johann Schilcher Messgerät zur Lichteinfallswinkelmessung sowie solartechnische Nachführeinrichtung
DE102008008403A1 (de) 2008-02-09 2009-08-13 Robert Bosch Gmbh Solarkraftwerk mit einer Spiegelnachführung mit Lichtsensoren

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103472858A (zh) * 2013-09-17 2013-12-25 赖中安 高精度全自动太阳跟踪控制器
CN109539598A (zh) * 2018-10-16 2019-03-29 北京拉夫堡太阳能技术有限公司 一种槽式太阳能装置的跟踪控制方法及系统
CN109539598B (zh) * 2018-10-16 2020-09-04 北京拉夫堡太阳能技术有限公司 一种槽式太阳能装置的跟踪控制方法及系统

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Publication number Publication date
DE102010028027A1 (de) 2011-10-27
WO2011131402A3 (fr) 2012-01-05

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