WO1992011496A1 - Dispositif d'orientation de collecteurs solaires - Google Patents

Dispositif d'orientation de collecteurs solaires Download PDF

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Publication number
WO1992011496A1
WO1992011496A1 PCT/CH1991/000252 CH9100252W WO9211496A1 WO 1992011496 A1 WO1992011496 A1 WO 1992011496A1 CH 9100252 W CH9100252 W CH 9100252W WO 9211496 A1 WO9211496 A1 WO 9211496A1
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WO
WIPO (PCT)
Prior art keywords
cylinders
tube
cylinder
axis
frame
Prior art date
Application number
PCT/CH1991/000252
Other languages
German (de)
English (en)
Inventor
Hans Ackeret
Original Assignee
Hans Ackeret
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 Hans Ackeret filed Critical Hans Ackeret
Publication of WO1992011496A1 publication Critical patent/WO1992011496A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
    • H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
    • 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
    • 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
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S2030/10—Special components
    • F24S2030/11—Driving means
    • F24S2030/115—Linear actuators, e.g. pneumatic cylinders
    • 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
    • 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
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the invention relates to a device for tracking solar collectors, in particular flat arrangements of photovoltaic cells.
  • Photovoltaic cells for obtaining electrical energy from solar radiation are generally combined in panels in a flat arrangement; In accordance with the geographical latitude, these panels are inclined and permanently fixed, oriented essentially to the south, be it on or on buildings, or at special locations. However, they only provide part of the possible yield, since the effective area exposed to the sun obeys the cosine law; in other words: the yield of electrical power is at a maximum only when the incidence of solar radiation is perpendicular. At any other angle, the effective area is reduced by the factor cos ⁇ , where ⁇ is the angle between the surface normal and the direction of incidence.
  • the object of the present invention is to provide a tracking device which functions completely without electrical energy and which provides tracking with the required - moderate - accuracy.
  • FIG. 1 shows a detail of FIG. 1
  • FIG. 6 shows a detail of FIG. 5,
  • Fig. 7b shows a detail of Fig. 7a
  • Fig. 8 shows the fourth embodiment.
  • Fig. 9 shows the fifth embodiment.
  • Solar panel 1 which is supported by a frame 2, preferably, for example, a foot 3, the frame 2 is connected to a tube 16, which is pivotally mounted on a frame 4 about its longitudinal axis.
  • a frame 4 On frame 4 is For this purpose, an axis 5 is attached, which is oriented essentially to the south and has an angle of inclination to the horizontal.
  • This angle of inclination 1. is essentially the angle of the midday height of the sun at the installation locations of the solar panel 1 at about the same time as day and night, in other words the angle of the latitude.
  • the angle ⁇ & above can be modified to the Intelaus ⁇ yield over the whole year either optimize or ximieren to ma.
  • Two cylinders 6, 7 are articulated to the frame 4 and are installed in parabolic reflectors 8 over their entire length.
  • the reflectors 8 are closed, for example, by transparent plates 9, but have openings 10, 11 on their end faces for the mechanical connections of the cylinders 6, 7.
  • cylinders 6, 7, such devices come into consideration which are filled with a low-boiling substance - be it a liquid or a solid substance - and move a piston as a function of the temperature from a certain threshold temperature. This is connected to a rod 13 and moves axially to the cylinder 6, 7.
  • the other end of the cylinder 6, 7 is attached to a further rod 12.
  • Such cylinders are widely used for lifting cold frame covers and greenhouse windows.
  • the restoring forces are applied, for example, by a helical spring which is either integrated in the cylinder or surrounds the cylinder.
  • the cylinders 6, 7 are attached to the frame 4 by means of the
  • Rods 12 via, for example, elastic joints 28.
  • the reflectors 8 are fastened to the rods 12, while the rods 13 are in the opening. can glide back and forth 11.
  • the two openings 10, 11 in the reflectors 8 are arranged such that the longitudinal axes of the cylinders 6, 7 are located in the focal line of the reflectors 8.
  • the reflector 8 with the cylinder 6 is oriented essentially to the east, that with the cylinder 7 is oriented essentially to the west.
  • the rods 13 are mounted on a short, plate-shaped lever 14 by means of two joints 18.
  • the lever 14 can be pivoted about an axis 15 which is perpendicular to the axis 5 and which passes through a flag 17, for example welded to the tube 16.
  • the lever 14 is in the embodiment of FIG. 1 two legs!
  • the normal position of the solar panel 1 in the arrangement according to the invention is - as indicated in FIG. 1 - the orientation to the south, parallel to the axis 5.
  • the normal position is assumed, for example, at night or when the sky is overcast. If the sun rises in the morning, it shines in grazing light, or even from behind on the solar panel 1; at the same time, however, it radiates onto the reflector 8, which essentially faces east and contains the cylinder 6. As a result, this is heated and the rod 13 axially displaced; a force acts on the lever 14 which would push it upwards if it were not forced through the rod 13 of the cylinder 7, as shown in FIG. 2.
  • A_ denotes the arc which is described by the joint of the cylinder 6 and that of the cylinder 7.
  • the stroke of the cylinder 6 thus causes the tube 16 to rotate, since only the cylinder 6 is illuminated by the sun.
  • the orientation of the reflector 8, which is open to the east, means that less radiation falls on it as the sun rises, the heating of the cylinder 6 ceases, or the cylinder 6 is partially shaded by the solar panel 1.
  • no more radiation falls into the reflector 8 oriented to the east, or, with a corresponding adjustment, equally little onto both reflectors 8, which compensates for the rotary effects of both cylinders 6, 7.
  • Extensions of the two cylinders 6, 7, which are caused by the ambient temperature are absorbed by the rotary movement of the lever 14 about the axis 15, without causing a rotary effect about the axis 5.
  • the local air temperatures, the wind loads to be expected on the solar panel 1, the areas of the reflectors 8, the length of the lever 14 and the angle ⁇ can be varied in order to achieve an optimal result, that is to say the pivoting of the device according to the invention based on the position of the sun to effect.
  • the frame 4, the two cylinders 6, 7 and the lever 14 are only shown schematically.
  • the reflector 8 containing the cylinder 7 is gradually illuminated more and more, whereupon the cylinder 7 exerts thrust on its rod 13 and thus swings the tube 16 to the other side.
  • This reflector 8, which is essentially open to the west, can of course be adjusted according to the climatic and topographical conditions, and independently of the other reflector 8.
  • the joints 18, which are schematically combined here to form a point, are designated by j3 in the normal position of the solar panel 1.
  • FIG. 4 shows the same device as FIG. 1, here supplemented by a third cylinder 20 that is completely shielded from the solar radiation. Furthermore, a foot 21 with a hinge joint 22 replaces the foot 3 rigidly connected to the frame 2. this allows the solar panel 1 to be pivoted in the elevation direction by an angle of, for example, 45 °.
  • the above-mentioned cylinder 20 functions as a thermometer for the ambient temperature and causes the solar panel to flatten at high temperatures, which approximates the annual cycle of the sun, which has not been taken into account to date.
  • the solar panel 1 in the normal position that is to say when the cylinder 20 is completely retracted, is set steeper by approximately 23 ° than the axis 5 about which the tube 16 rotates. With the cylinder 20 fully extended, the highest position of the sun can thus be approximately reached.
  • climatic and topographical elements are decisive for the use and dimensioning of the cylinder 20.
  • the device according to the invention can also be used in equatorial widths.
  • the axis 5 is horizontal, the two reflectors 8 are still oriented essentially to the east and to the west.
  • the use of the cylinder 20 is eliminated because of the double periodicity of the position of the sun in the annual cycle and due to the lack of a pronounced annual temperature cycle. Included in the inventive concept is to arrange the cylinders 6, 7 in front of the axis 5 instead of behind it.
  • the flag 17 and lever 14 are then attached accordingly at the front, and the positions of the cylinders 6, 7 are interchanged: the reflector 8 with the cylinder 6, which is open to the east, is to the west, the other, to the west, is open to the east of the tube 16 appropriate. Still in the inventive idea is the arrangement above 1 b of the solar panel 1, also with both possible arrangements. The angle ⁇ is then preferably opened upwards. Of course, the cylinders 6, 7 with their reflectors 8 can also be attached below the solar panel 1 with the angle ⁇ open at the top.
  • FIG. 5 A second embodiment is shown in FIG. 5.
  • two further cylinders 23, which are shielded from the solar radiation are provided. These are, for example, of the same design and the same temperature / displacement characteristic as the cylinders 6, 7, and also have rods 25 which are firmly connected to them and movable rods 26 which transmit the stroke, analogously to the rods 12, 13 of the cylinders 6 , 7. From the axis 5 to the frame 4 runs a strut 24 to which the rods 26 are attached. The rods 25 are connected to the rods 12 of the cylinders 6, 7.
  • these rods 12 are now not connected to the frame 2 by means of flexible joints, but instead run axially freely in a tube 27 each connected to the frame 4, as shown in FIG. 6. If the air temperature now rises above the threshold value of the cylinders 6, 7, 23, the rod 25 lowers and takes the rod 12 connected to it in the longitudinal direction of the rod 12, as indicated by an arrow in FIG. 6. Thus, the pivoting movement of the lever 14 is only dependent on the stroke of the cylinder 6 or 7 irradiated by the sun; the temperature change is compensated.
  • the embodiment according to FIGS. 5, 6 is particularly preferable for places with a strong daily course of the air temperature.
  • the third exemplary embodiment according to FIGS. 7a, b shows a different arrangement of the cylinders 6, 7 than the first and second.
  • the two cylinders 6, 7 are arranged parallel to one another and run essentially in a north-south direction, their axes, for example, being perpendicular to the axis 5 about which the solar panel 1 pivots.
  • the rod 13 which transmits the stroke of the cylinder 6 is attached to a flag 31 which is fixedly connected to the frame 4.
  • the rod 13 of the cylinder 7 is connected in an articulated manner to a flag 32 which is welded to the tube 16, for example.
  • the two rods 12 are connected to a fork 33 which works on a rod 34 parallel to the rods 12.
  • the Rod 34 is mounted in a longitudinally sliding manner in an articulated tube 35, and the arrangement is fastened, for example, by means of a tube 36 to a plate 37 which is screwed to a wall.
  • the reflector 8 of the cylinder is oriented essentially to the east, that of the cylinder 7 is oriented essentially to the west, each with an elevation that is adapted to the local conditions.
  • This arrangement compensates for the ambient temperature as soon as it rises above the threshold temperature of the cylinders 6, 7. If the cylinder 6 expands, it transmits the longitudinal displacement via the fork 33 to the cylinder 7, which exerts tension on the flag 32 via its rod 13 and thus pivots the solar panel 1 in an easterly direction. If the cylinder 7 receives solar radiation, it exerts a compressive force on the flag 32 and thus pivots the solar panel 1 in a westward direction. In order to avoid tension, one of the rods 12 can be attached to the fork 33 in an articulated manner.
  • the rod 13 of the cylinder 7 works on a toothed rack which extends in the same direction as the rod 13 and is firmly connected to it.
  • the flag 32 there is a gear, which also runs on the axis 5 and is firmly connected to the tube 16. This eliminates the restriction of the angle of rotation to just under 180 °; the stops 19 are of course also omitted.
  • the rod 13 of the cylinder 7 acts on a chain which rotates around a chain wheel which is fastened coaxially to the rod 16.
  • This chain is biased by a spring.
  • the pressure force supplied by the rod 13 of the cylinder 7 has a reducing effect on the pretensioning force, which produces the desired rotation.
  • a wire rope can of course also be used, which runs around a drum coaxial with the rod 16 and is also biased by a spring.
  • Fig. 7b is a section through the rod 34, the tubes 35, 36 and
  • FIGS. 8 a, b A further arrangement as a fourth embodiment is shown in FIGS. 8 a, b; 8a in perspective, FIG. 8b in a schematic top view from the rear.
  • the axes of the two cylinders 6, 7 also provided here are oriented east-west.
  • the rod 13 of the cylinder 6 which transmits the stroke is fastened to a column 38 which in turn is connected to the frame 4.
  • the rod 12 belonging to the cylinder 6 is, as in the previous embodiment according to FIGS. 7a, b, articulated by means of the fork 33 to the rod 12 of the cylinder 7.
  • the fork 33 also has a rod 34 which slides in a tube 35 fastened in a second column 39.
  • the rod 13 of the cylinder 7 acts on a flag 40 which, for example, is welded to the tube 16 pointing north.
  • the two reflectors 8 are directed essentially to the north and tilted slightly upwards by an angle which is dependent on the geographical latitude and the local conditions.
  • the columns 38, 39 are connected by a strut 41. In order to avoid incorrect sun exposure of the reflectors 8, they are each provided with an inner cover plate 42.
  • geometric swapping of the cylinders 6, 7 is within the inventive concept: the cylinder 7 is fastened to the column 39, the fork 33 with the rod 34 is located the east side at the column 38, and the cylinder 6 works between the fork 33 and the flag 40.
  • the reflectors 8 can be asymmetrical, in such a way that one longitudinal wall is higher than the other. If there is an increased collection effect for sunlight from one side, this form simultaneously causes shading from the other.
  • the exemplary embodiment according to FIG. 9 is a variant of that according to FIG. 4.
  • the lever 14 is not articulated, but is fixedly connected to the tube 16.
  • the tube 16 is shortened at the top, so that it is also axially displaceable along its axis 5.
  • the tube 16 is normally located at the bottom due to its weight. If the cylinders 6, 7 expand because of the high ambient temperature, regardless of the different tanning, the tube 16 is pushed axially upwards due to the common stroke.
  • the frame 2 of the solar panel 1 is articulated on the foot 21 by means of the hinge joint 22 as in FIG. 4.
  • hinge joints 45 At the upper part of the frame there are two further horizontal and mutually coaxial hinge joints 45, to which struts 46 hinged wel ⁇ che - interconnected - by a further horizontal charm 'erge- directing 47 are pivotable.
  • the hinge joint 47 is located on a ring 48, which is rotatable about the uppermost part of the axis 5, but is non-displaceable axially.
  • the annual sun exposure can be carried out via the air temperature.
  • FIG. 1 a, b shows a variant of the rotating device according to FIGS. 1, 4 and 9 in two views; 10 a from the side, FIG. 10 b from the rear.
  • the axially displaceable tube 16 according to FIG. 9 rests by its own weight on a tube 49, which is also axially displaceable, but is not rotatable. It is prevented from rotating by a bolt 50 which runs in a slot 51 and is fastened to the axis 5 of the device.
  • An arm 52 is fastened to this tube 49, which carries a cable drum 53 with a swivel arm 54 fastened thereon.
  • the rods 13 of the cylinders 6, 7 act on the two ends of the swivel arm 54 in the known manner.
  • a wire rope 55 runs around the rope drum 53 and is fastened to it, for example, by a clamp 56.
  • the wire rope 55 runs upwards over two deflection rollers 57, which are also rotatably fastened to the arm 52, is deflected by them and then runs around a further rope drum 58, which is connected coaxially to the tube 16 and whereupon the wire rope 55 by means of a further clamp 56 attached.
  • the diameters of the cable drums 53 and 58 are coordinated with one another in such a way that the maximum swivel range of the swivel arm 54 corresponds to the maximum necessary rotation of the tube 16.
  • the diameter of the cable drum 53 is therefore generally larger than that of the cable drum 58.
  • the cable drive described according to FIGS. 10 a, b can be replaced by an appropriately dimensioned bevel gear drive without leaving the scope of the inventive concept. 10 a, b can also be used in the other exemplary embodiments with small modifications which are familiar to any person skilled in the art.
  • the rotary drive according to FIGS. 10 a, b can also be used for those exemplary embodiments in which the axial displacement of the upper tube 16 is not provided , in particular in the exemplary embodiments according to FIGS. 1 and 4.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Photovoltaic Devices (AREA)

Abstract

Le dispositif décrit permet de résoudre le problème qui consiste à orienter des collecteurs plats photovoltaïques dans la direction du soleil, sans consommer de l'énergie électrique. Un panneau solaire (1) est fixé à un tube (16) pivotant autour d'un axe (5) orienté environ vers le sud et incliné par rapport à l'horizontale essentiellement au même angle que la latitude géographique. Le tube (16) porte en outre une ailette (32) qui lui est perpendiculaire. Une deuxième ailette (31) identique à la première est fixée au cadre (4) porteur de toute l'installation. Les tiges mobiles (13) de deux vérins (6, 7) sont fixées aux ailettes (31, 32). Les vérins sont remplis d'une substance à bas point d'ébullition sous la pression de laquelle les tiges (13) sont axialement déplacées en fonction de la température. Les tiges fixes (12) des vérins (6, 7) sont assujetties à une fourchette (33) reliée à une tige (34) coaxiale par rapport aux tiges (12, 13) et axialement mobile dans un tube (35) monté de façon articulée. Les vérins (6, 7) sont incorporés dans des réflecteurs paraboliques (8); le premier vérin (6) est essentiellement orienté vers l'est, l'autre vérin (7) est essentiellement orienté vers l'ouest. Lorsque le rayonnement du soleil levant frappe le vérin (6), celui-ci s'allonge lorsqu'il atteint la température de seuil et fait pivoter le tube (16) avec le panneau solaire (1) dans la direction du soleil. La même chose se produit avec le vérin (7) lorsque la hauteur méridienne est dépassée. Lorsque la température ambiante dépasse la température de seuil des vérins (6, 7), les deux vérins s'allongent et la tige (34) est axialement poussée dans le tube (35); l'effet de mise en rotation ne se produit plus.
PCT/CH1991/000252 1990-12-18 1991-12-10 Dispositif d'orientation de collecteurs solaires WO1992011496A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4028/90-5 1990-12-18
CH402890 1990-12-18

Publications (1)

Publication Number Publication Date
WO1992011496A1 true WO1992011496A1 (fr) 1992-07-09

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Application Number Title Priority Date Filing Date
PCT/CH1991/000252 WO1992011496A1 (fr) 1990-12-18 1991-12-10 Dispositif d'orientation de collecteurs solaires

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DE (1) DE9116151U1 (fr)
WO (1) WO1992011496A1 (fr)

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US5663198A (en) * 1993-07-15 1997-09-02 Hoechst Aktiengesellschaft Drug formulations comprising coated, very sparingly water-soluble drugs for inhalational pharmaceutical forms, and process for their preparation
WO2002084183A1 (fr) * 2001-04-11 2002-10-24 Jolanta Mekal Dispositif de commande de collecteurs solaires
WO2004036124A1 (fr) * 2002-10-17 2004-04-29 Michael Terrence Patterson Appareil de poursuite solaire
AU2003254387B2 (en) * 2002-10-17 2006-11-16 Portasol Trackers Pty Ltd Solar tracking apparatus
ES2281990A1 (es) * 2006-03-16 2007-10-01 Ingenieria, Energia Y Medio Ambiente. Ingema S.L. Seguidor solar en dos ejes.
ES2302469A1 (es) * 2006-12-29 2008-07-01 Hispanotracker, S.L. Seguidor solar bidireccional.
WO2008084121A1 (fr) * 2006-12-29 2008-07-17 Hispanotracker, S.L. Suiveur solaire bidirectionnel
US20100275904A1 (en) * 2009-04-30 2010-11-04 SunPoint Technologies, Inc. Thermal-mechanical positioning for radiation tracking
WO2014056049A1 (fr) 2012-10-11 2014-04-17 Bilić Josip Dispositif utilisant des sources d'énergie renouvelable multiples
CN103753522A (zh) * 2014-02-21 2014-04-30 上海交通大学 二自由度旋转机械手
US20140238488A1 (en) * 2013-02-28 2014-08-28 Wisconsin Alumni Research Foundation Passive Solar Tracking System To Enhance Solar Cell Output
US8895836B2 (en) 2011-10-19 2014-11-25 King Saud University Dual axis solar tracker apparatus and method
CN105135511A (zh) * 2015-10-13 2015-12-09 柴春林 一种基于太阳能加热板的加热系统
CN108692470A (zh) * 2018-05-23 2018-10-23 王真 用于太阳能设备的转向器和太阳能设备
CN109164832A (zh) * 2018-08-21 2019-01-08 中冶华天南京工程技术有限公司 一种太阳能电池板支架角度自动调整系统
CN112104310A (zh) * 2020-10-15 2020-12-18 合肥凌山新能源科技有限公司 一种可调节且发电效率高的太阳能电池板组件
CN112260634A (zh) * 2020-10-22 2021-01-22 苏州聚之义智能科技有限公司 一种光伏跟踪支架

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DE102007012543A1 (de) * 2007-03-13 2008-09-18 Wolfgang Reisdorf Vorrichtung und Verfahren zur Nachführung mindestens eines Moduls einer Solarmodulanlage
PT105900A (pt) * 2011-09-23 2013-03-25 Active Space Technologies Actividades Aeroespaciais S A Sistema passivo de seguimento solar
US8763601B2 (en) * 2011-12-29 2014-07-01 Sulas Industries, Inc. Solar tracker for solar energy devices
DE102012209004A1 (de) * 2012-05-29 2013-12-05 Siemens Aktiengesellschaft Photovoltaik-Anlage mit passivem Justage-Element zum Einstellen eines Einfallswinkels elektromagnetischer Strahlung auf Photovoltaik-Zellen der Photovoltaik-Anlage, Verfahren zum Einstellen des Einfallswinkels sowie Verwendung der Photovoltaik-Anlage
GB2579361A (en) * 2018-11-28 2020-06-24 Duffin Associates Ltd Apparatus for solar tracking

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US4063543A (en) * 1976-08-12 1977-12-20 John Henry Hedger Servo tracking apparatus
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WO2004036124A1 (fr) * 2002-10-17 2004-04-29 Michael Terrence Patterson Appareil de poursuite solaire
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ES2302469A1 (es) * 2006-12-29 2008-07-01 Hispanotracker, S.L. Seguidor solar bidireccional.
WO2008084121A1 (fr) * 2006-12-29 2008-07-17 Hispanotracker, S.L. Suiveur solaire bidirectionnel
ES2344492A1 (es) * 2006-12-29 2010-08-27 Hispanotracker, S.L. Mejoras introducidas en la patente de invencion p.200603326/3 por: seguidor solar bidireccional.
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US8895836B2 (en) 2011-10-19 2014-11-25 King Saud University Dual axis solar tracker apparatus and method
WO2014056049A1 (fr) 2012-10-11 2014-04-17 Bilić Josip Dispositif utilisant des sources d'énergie renouvelable multiples
US9548697B2 (en) * 2013-02-28 2017-01-17 Wisconsin Alumni Research Foundation Passive solar tracking system to enhance solar cell output
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CN103753522A (zh) * 2014-02-21 2014-04-30 上海交通大学 二自由度旋转机械手
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