WO2008064382A2 - System for generating electric power by means of photovoltaic elements - Google Patents
System for generating electric power by means of photovoltaic elements Download PDFInfo
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- WO2008064382A2 WO2008064382A2 PCT/AT2007/000531 AT2007000531W WO2008064382A2 WO 2008064382 A2 WO2008064382 A2 WO 2008064382A2 AT 2007000531 W AT2007000531 W AT 2007000531W WO 2008064382 A2 WO2008064382 A2 WO 2008064382A2
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- Prior art keywords
- photovoltaic elements
- axes
- approximately
- support
- deflection pulleys
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims 3
- 238000010276 construction Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000002420 orchard Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Classifications
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- 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
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- 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
- F24S30/45—Arrangements for moving or orienting solar heat collector modules for rotary movement with two rotation axes
- F24S30/452—Vertical primary axis
-
- 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
-
- 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
- F24S2030/13—Transmissions
- F24S2030/133—Transmissions in the form of flexible elements, e.g. belts, chains, ropes
-
- 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
- F24S2030/13—Transmissions
- F24S2030/136—Transmissions for moving several solar collectors by common transmission elements
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- 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
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- 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 subject invention relates to a plant for the production of electrical energy by means of photovoltaic elements, which are located on a support structure mainly formed by support or control cables, wherein the photovoltaic elements are pivotable about at least approximately vertically aligned axes and also at least approximately horizontally aligned axes ,
- the subject invention is therefore an object of the invention to provide a support structure, which, although it is met by the existing technical requirements, has a very simple construction.
- This is inventively achieved in that the structure alternately two types of self-contained support and control cables are provided, between each of which is a group of photovoltaic elements and to which the free ends of the at least approximately horizontally oriented axes of the photovoltaic elements are articulated ,
- the photovoltaic elements are pivotable about at least approximately vertically aligned axes by a first type of support and control cables, whereby they are the East-West movement of the sun trackable and by the second type of support and control cables
- the photovoltaic elements at least Almost horizontally aligned axes are pivotable, whereby they are adjustable to the height of the sun.
- This structural design is therefore particularly advantageous because only two groups of different, self-contained control cables need to be provided, by which both the support function and the control function for the photovoltaic elements are met.
- each actuating cable of the first type is formed by a self-contained cable, which is guided over two at least approximately horizontally oriented deflection pulleys and thus has two at least approximately horizontally adjacent Seiltrume, wherein the respective associated end of the approximately horizontally oriented axes of the adjacent photovoltaic Elements is hinged to one of the two Seiltrume.
- at least one of the deflection plates can be driven.
- the drivable deflection pulleys or groups thereof can be coupled to one another via rotation via a common drive, eg a drive cable.
- each adjusting cable of the second type is formed by a self-contained cable, which is guided over two at least approximately vertically aligned pulleys and thus has two at least approximately vertically superimposed Seiltrume, wherein the respective associated end of the at least approximately horizontal axes of the adjacent photovoltaic elements is articulated by means of a two-armed lever to both these Seiltrume.
- at least one of the deflecting disks can be driven.
- the drivable deflecting disks or groups thereof are coupled to one another via rotation via a common drive, eg a drive shaft.
- Fig.l, Fig. Ia an embodiment of a system according to the invention, in two different operating positions and in axonometric representation;
- FIG.2 Fig.3 two details of Fig. 1, in relation to this enlarged view.
- FIGS. 1 to 3 for the production of electrical energy by means of photovoltaic elements has four supports 1 on which a horizontally oriented, square-shaped supporting structure 2 for a multiplicity of photovoltaic elements 3 is located.
- the support structure 2 for the photovoltaic elements 3 consists of two longitudinally extending, mutually parallel bars 21 and 22, between which there are two types of self-contained control cables 41 and 51, to which the photovoltaic elements 3 are hinged, passing through these cables 41 and 51 are adjustable together.
- Each actuating cable 41 is guided around two horizontally oriented deflection disks 42 and 43 mounted on the beams 21 and 22 and which are rotatable about vertical axes.
- each actuating cable 41 has two parallel adjacent runs 41a and 41b (see FIG. 2), which are moved in opposite directions by a rotation of the deflection disks 42.
- For the rotation of the pulleys 42 at least one transverse to the actuating cable 41 extending cable 44 is provided, which is driven by a motor 45 and which is coupled to a group of pulleys 42.
- each photovoltaic element 3 is formed with an at least approximately horizontally aligned first journal 31, which is articulated to one of the associated strands 41a and 41b.
- Each actuating cable 51 is guided around two horizontally oriented deflection disks 52 and 53 mounted on the beams 21 and 22 and which are rotatable about at least approximately horizontal axes.
- each setting cable 51 has two parallel and superposed strands 51a and 51b (see Fig. 3], which are moved in opposite directions by a rotation of the deflection pulleys 52.
- For the rotation of the pulleys 52 at least one located next to the bar 21 shaft 54 is provided , which is driven by a motor 55 and which is coupled via gear with the pulleys 52 on the rotation thereof.
- the photovoltaic elements 3 are formed on the side facing away from the first journal 31 with a second journal 32, on which a transverse to the axle 32 aligned two-armed lever 33 is located, whose free ends are hinged to the two Seiltrume 51 a and 51 b.
- FIG. 1 shows a middle position of the photovoltaic elements 3.
- the respective two Seiltrume 41 a and 41 b are moved in opposite directions, whereby all photovoltaic elements 3 are pivoted about at least approximately vertical axes, so that they are tracked the east-west movement of the sun.
- the respective two Seiltrume 51 a and 51 b are moved in opposite directions, whereby the photovoltaic elements 3 are rotated about at least approximately horizontal axes on the pivot lever 33 and the axle journals 32, whereby they are adjusted to the height of the sun.
- a position of the photovoltaic elements is shown in Fig.2.
- adjustable cables fulfill both the support function and the positioning function for the photovoltaic elements, a significant simplification in the structural design is achieved.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (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
Disclosed is a system for generating electric power by means of photovoltaic elements (3) located on a supporting framework (2) that is predominantly formed by supporting or positioning cables. The photovoltaic elements (3) can be swiveled about at least nearly vertical shafts and about at least nearly horizontal shafts. Two types of self-contained supporting and positioning cables (41, 51), between which one respective group of photovoltaic elements (3) is arranged and to which the ends (31, 32) of the at least nearly horizontal shafts of the photovoltaic elements (3) are hinged, are alternately provided on the supporting framework (2). The photovoltaic elements (3) can be swiveled about at least nearly vertical shafts by means of a first type of supporting and positioning cables (41) so as to be able to follow the movement of the sun from the East to the West, while the photovoltaic elements (3) can be swiveled about nearly horizontal shafts by means of a second type of supporting and positioning cables (51) so as to be adjustable to the level of the solar altitude.
Description
Anlage zur Gewinnung von elektrischer Energie mittels photovoltaischer Elemente Plant for the production of electrical energy by means of photovoltaic elements
Die gegenständliche Erfindung betrifft eine Anlage zur Gewinnung von elektrischer Energie mittels photovoltaischer Elemente, welche sich auf einem überwiegend durch Trag- bzw. Stellseile gebildeten Tragwerk befinden, wobei die photovoltaischen Elemente um zumindest angenähert vertikal ausgerichtete Achsen sowie zudem um zumindest angenähert horizontal ausgerichtete Achsen verschwenkbar sind.The subject invention relates to a plant for the production of electrical energy by means of photovoltaic elements, which are located on a support structure mainly formed by support or control cables, wherein the photovoltaic elements are pivotable about at least approximately vertically aligned axes and also at least approximately horizontally aligned axes ,
Es ist bekannt, photovoltaische Elemente an Dächern oder an Fassaden von Gebäuden bzw. an eigens dafür errichteten Tragkonstruktionen zu befestigen. Sofern photovoltaische Elemente an für diese gesondert errichteten Tragkonstruktionen vorgesehen werden, muss der für diese Tragkonstruktionen erforderliche Platz zur Verfügung gestellt werden.It is known to attach photovoltaic elements on roofs or facades of buildings or on specially constructed supporting structures. If photovoltaic elements are provided on these separately constructed supporting structures, the space required for these supporting structures must be made available.
Es ist weiters bekannt, Parkplätze für Kraftfahrzeuge mittels Sonnenschutzdächern abzuschatten, um hierdurch ein starkes Aufheizen der Kraftfahrzeuge und dadurch verursachte Beschädigungen derselben zu verhindern bzw. um deren Benützung zu erleichtern. Weiters ist es bekannt, oberhalb von Obstplantagen Netze zu spannen, um die Plantagen gegen Schädigungen der Früchte durch Hagelschläge bzw. gegenüber Vogelschwärmen zu schützen. In gleicher Weise können Pflanzenkulturen gegenüber Hagelschlägen geschützt werden.It is also known to shade parking for motor vehicles by means of sunshades, thereby preventing a strong heating of the motor vehicle and damage caused by the same or to facilitate their use. Furthermore, it is known to stretch nets above orchards in order to protect the plantations against damage to the fruits by hailstorms or bird flocks. In the same way, crops can be protected against hailstorms.
Sofern an Tragkonstruktionen befindliche photovoltaische Elemente oberhalb von Parkplätzen oder oberhalb von Obstplantagen bzw. Pflanzenkulturen angeordnet werden, ist insofern ein Kombinationseffekt erzielbar, dass einerseits elektrische Energie gewonnen werden kann und dass andererseits die Parkplätze für Kraftfahrzeuge abgeschattet bzw. die Obstkulturen bzw. Pflanzenkulturen gegen Schädigungen durch Hagelschläge oder gegenüber Vogelschwärmen gesichert werden.Insofar as photovoltaic elements located on supporting structures are arranged above parking areas or above orchards or crops, a combination effect can be achieved insofar as electrical energy can be obtained and, on the other hand, the parking spaces for motor vehicles can be shaded or fruit crops or crops can be protected against damage Hailstorms or against bird swarms are secured.
Bei Anlagen zur Gewinnung von elektrischer Energie mittels photovoltaischer Elemente besteht das Erfordernis, sämtliche photovoltaischen Elemente sowohl um eine zumindest angenähert vertikale Achse verschwenken zu können, um sie der Ost- West- Bewegung der Sonne nachzuführen, als auch die photovoltaischen Elemente um eine angenähert horizontale Achse verschwenken zu können, um sie der Höhe des Sonnenstandes nachführen zu können, sodass sich die photovoltaischen Elemente jeweils in der Normalebene der einfallenden Sonnenstrahlen befinden. Es wird hiezu darauf verwiesen, dass durch Abweichungen der Lagen der photovoltaischen Elemente von
der Normalebene auf die einfallenden Sonnenstrahlen sehr maßgebliche Verluste im Wirkungsgrad verursacht werden.In plants for the production of electrical energy by means of photovoltaic elements, it is necessary to be able to pivot all the photovoltaic elements both about an at least approximately vertical axis in order to track the east-west movement of the sun, and the photovoltaic elements about an approximately horizontal axis to be able to pivot in order to track the height of the sun, so that the photovoltaic elements are each in the normal plane of the incident sunbeams. It is hereby pointed out that by deviations of the layers of the photovoltaic elements of the normal plane on the incident sun rays are caused very significant losses in efficiency.
Bei bekannten Tragkonstruktionen sind einerseits Tragbalken bzw. Tragseile vorgesehen, an welchen die photovoltaischen Elemente beweglich befestigt sind und sind andererseits Stelleinrichtungen, wie Stellseile, vorgesehen, mittels welcher die photovoltaischen Elemente um zumindest angenähert vertikale Achsen sowie um zumindest angenähert horizontale Achsen verschwenkbar sind. Es handelt sich dabei jedoch um relativ komplizierte und aufwendige Konstruktionen.In known supporting structures on the one hand support beams or supporting cables are provided on which the photovoltaic elements are movably mounted and on the other hand actuating means, such as control cables provided by means of which the photovoltaic elements are pivotable about at least approximately vertical axes and at least approximately horizontal axes. However, these are relatively complicated and expensive constructions.
Der gegenständlichen Erfindung liegt somit die Aufgabe zugrunde, eine Tragkonstruktion zu schaffen, welche, obwohl durch diese den bestehenden technischen Erfordernissen entsprochen wird, eine sehr einfache Konstruktion aufweist. Dies wird erfindungsgemäß dadurch erzielt, dass am Tragwerk abwechselnd zwei Arten von in sich geschlossenen Trag- und Stellseilen vorgesehen sind, zwischen welchen sich jeweils eine Gruppe von photovoltaischen Elementen befindet und an welche die freien Enden der zumindest angenähert horizontal ausgerichteten Achsen der photovoltaischen Elemente angelenkt sind, wobei durch eine erste Art der Trag- und Stellseile die photovoltaischen Elemente um zumindest angenähert vertikal ausgerichtete Achsen verschwenkbar sind, wodurch sie der Ost- West-Bewegung der Sonne nachführbar sind und durch die zweite Art der Trag- und Stellseile die photovoltaischen Elemente um zumindest angenähert horizontal ausgerichteten Achsen verschwenkbar sind, wodurch sie auf die Höhe des Sonnenstandes einstellbar sind.The subject invention is therefore an object of the invention to provide a support structure, which, although it is met by the existing technical requirements, has a very simple construction. This is inventively achieved in that the structure alternately two types of self-contained support and control cables are provided, between each of which is a group of photovoltaic elements and to which the free ends of the at least approximately horizontally oriented axes of the photovoltaic elements are articulated , In which the photovoltaic elements are pivotable about at least approximately vertically aligned axes by a first type of support and control cables, whereby they are the East-West movement of the sun trackable and by the second type of support and control cables, the photovoltaic elements at least Almost horizontally aligned axes are pivotable, whereby they are adjustable to the height of the sun.
Diese konstruktive Gestaltung ist deshalb besonders vorteilhaft, da nur zwei Gruppen von unterschiedlichen, in sich geschlossenen Stellseilen vorgesehen zu sein brauchen, durch welche sowohl die Tragfunktion als auch die Stellfunktion für die photovoltaischen Elemente erfüllt werden.This structural design is therefore particularly advantageous because only two groups of different, self-contained control cables need to be provided, by which both the support function and the control function for the photovoltaic elements are met.
Vorzugsweise ist jedes Stellseil der ersten Art durch ein in sich geschlossenes Seil gebildet, welches über zwei zumindest angenähert horizontal ausgerichtete Umlenkscheiben geführt ist und welches somit zwei zumindest angenähert horizontal nebeneinander befindliche Seiltrume aufweist, wobei das jeweils zugeordnete Ende der angenähert horizontal ausgerichteten Achsen der anliegenden photovoltaischen Elemente an jeweils eines der beiden Seiltrume angelenkt ist. Dabei ist zumindest eine der Umlenkscheiben antreibbar. Weiters können die antreibbaren Umlenkscheiben bzw. Gruppen derselben über einen gemeinsamen Antrieb, z.B. ein Antriebsseil, miteinander auf Verdrehung gekuppelt sein.
Weiters ist vorzugsweise jedes Stellseil der zweiten Art durch ein in sich geschlossenes Seil gebildet, welches über zwei zumindest angenähert vertikal ausgerichtete Umlenkscheiben geführt ist und welches somit zwei zumindest angenähert vertikal übereinander befindliche Seiltrume aufweist, wobei das jeweils zugeordnete Ende der zumindest angenähert waagrechten Achsen der anliegenden photovoltaischen Elemente mittels eines zweiarmigen Hebels an beide diese Seiltrume angelenkt ist. Dabei kann gleichfalls zumindest eine der Umlenkscheiben antreibbar sein. Vorzugsweise sind auch hierbei die antreibbaren Umlenkscheiben bzw. Gruppen derselben über einen gemeinsamen Antrieb, z.B. eine Antriebswelle, miteinander auf Verdrehung gekuppelt.Preferably, each actuating cable of the first type is formed by a self-contained cable, which is guided over two at least approximately horizontally oriented deflection pulleys and thus has two at least approximately horizontally adjacent Seiltrume, wherein the respective associated end of the approximately horizontally oriented axes of the adjacent photovoltaic Elements is hinged to one of the two Seiltrume. In this case, at least one of the deflection plates can be driven. Furthermore, the drivable deflection pulleys or groups thereof can be coupled to one another via rotation via a common drive, eg a drive cable. Furthermore, preferably, each adjusting cable of the second type is formed by a self-contained cable, which is guided over two at least approximately vertically aligned pulleys and thus has two at least approximately vertically superimposed Seiltrume, wherein the respective associated end of the at least approximately horizontal axes of the adjacent photovoltaic elements is articulated by means of a two-armed lever to both these Seiltrume. At the same time, at least one of the deflecting disks can be driven. Preferably, in this case too, the drivable deflecting disks or groups thereof are coupled to one another via rotation via a common drive, eg a drive shaft.
Eine erfindungsgemäße Anlage ist nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:A system according to the invention is explained below with reference to an embodiment shown in the drawing. Show it:
Fig.l , Fig. Ia eine Ausführungsform einer erfindungsgemäßen Anlage, in zwei unterschiedlichen Betriebsstellungen und in axonometrischer Darstellung; undFig.l, Fig. Ia an embodiment of a system according to the invention, in two different operating positions and in axonometric representation; and
Fig.2, Fig.3 zwei Details der Fig. 1 , in gegenüber dieser vergrößerter Darstellung.Fig.2, Fig.3 two details of Fig. 1, in relation to this enlarged view.
Die in den Fig.1 bis Fig.3 dargestellte Anlage zur Gewinnung von elektrischer Energie mittels photovoltaischer Elemente weist vier Stützen 1 auf, auf welchen sich ein horizontal ausgerichtetes, im Grundriss viereckiges Tragwerk 2 für eine Vielzahl von photovoltaischen Elementen 3 befindet.The system illustrated in FIGS. 1 to 3 for the production of electrical energy by means of photovoltaic elements has four supports 1 on which a horizontally oriented, square-shaped supporting structure 2 for a multiplicity of photovoltaic elements 3 is located.
Das Tragwerk 2 für die photovoltaischen Elemente 3 besteht aus zwei sich längserstreckenden, zueinander parallelen Balken 21 und 22, zwischen welchen sich zwei Arten von in sich geschlossenen Stellseilen 41 und 51 befinden, an welche die photovoltaischen Elemente 3 angelenkt sind, wobei sie durch diese Seile 41 und 51 gemeinsam verstellbar sind.The support structure 2 for the photovoltaic elements 3 consists of two longitudinally extending, mutually parallel bars 21 and 22, between which there are two types of self-contained control cables 41 and 51, to which the photovoltaic elements 3 are hinged, passing through these cables 41 and 51 are adjustable together.
Jedes Stellseil 41 ist um zwei an den Balken 21 und 22 gelagerte, horizontal ausgerichtete Umlenkscheiben 42 und 43 geführt, welche um vertikale Achsen verdrehbar sind. Somit weist jedes Stellseil 41 zwei parallel nebeneinander liegende Trume 41a und 41b (siehe Fig.2) auf, welche durch eine Verdrehung der Umlenkscheiben 42 gegenläufig bewegt werden. Für die Verdrehung der Seilscheiben 42 ist mindestens ein quer zum Stellseil 41 verlaufender Seilzug 44 vorgesehen, welcher mittels eines Motors 45 antreibbar ist und welcher mit einer Gruppe von Seilscheiben 42 gekuppelt ist. Weiters ist jedes photovoltaische Element 3 mit einem zumindest angenähert horizontal ausgerichteten ersten Achszapfen 31 ausgebildet, welcher an jeweils eines der zugeordneten Trume 41a und 41b angelenkt ist.
Jedes Stellseil 51 ist um zwei an den Balken 21 und 22 gelagerte, horizontal ausgerichtete Umlenkscheiben 52 und 53 geführt, welche um zumindest angenähert horizontale Achsen verdrehbar sind. Somit weist jedes Stellseil 51 zwei parallele und übereinander befindliche Trume 51a und 51b (siehe Fig.3] auf, welche durch eine Verdrehung der Umlenkscheiben 52 gegenläufig bewegt werden. Für die Verdrehung der Seilscheiben 52 ist mindestens eine neben dem Balken 21 befindliche Welle 54 vorgesehen, welche von einem Motor 55 angetrieben ist und welche über Getriebe mit den Seilscheiben 52 auf deren Verdrehung gekuppelt ist.Each actuating cable 41 is guided around two horizontally oriented deflection disks 42 and 43 mounted on the beams 21 and 22 and which are rotatable about vertical axes. Thus, each actuating cable 41 has two parallel adjacent runs 41a and 41b (see FIG. 2), which are moved in opposite directions by a rotation of the deflection disks 42. For the rotation of the pulleys 42 at least one transverse to the actuating cable 41 extending cable 44 is provided, which is driven by a motor 45 and which is coupled to a group of pulleys 42. Furthermore, each photovoltaic element 3 is formed with an at least approximately horizontally aligned first journal 31, which is articulated to one of the associated strands 41a and 41b. Each actuating cable 51 is guided around two horizontally oriented deflection disks 52 and 53 mounted on the beams 21 and 22 and which are rotatable about at least approximately horizontal axes. Thus, each setting cable 51 has two parallel and superposed strands 51a and 51b (see Fig. 3], which are moved in opposite directions by a rotation of the deflection pulleys 52. For the rotation of the pulleys 52 at least one located next to the bar 21 shaft 54 is provided , which is driven by a motor 55 and which is coupled via gear with the pulleys 52 on the rotation thereof.
Weiters sind die photovoltaischen Elemente 3 an der dem ersten Achszapfen 31 abgewandten Seite mit einem zweiten Achszapfen 32 ausgebildet, an welchem sich ein quer zum Achszapfen 32 ausgerichteter zweiarmiger Hebel 33 befindet, dessen freie Enden an die beiden Seiltrume 51a und 51b angelenkt sind.Furthermore, the photovoltaic elements 3 are formed on the side facing away from the first journal 31 with a second journal 32, on which a transverse to the axle 32 aligned two-armed lever 33 is located, whose free ends are hinged to the two Seiltrume 51 a and 51 b.
Die Wirkungsweise dieser Anlage ist wie folgt:The operation of this system is as follows:
In Fig.1 ist eine mittlere Stellung der photovoltaischen Elemente 3 dargestellt. Durch eine Verdrehung der Umlenkscheiben 42 werden die jeweiligen beiden Seiltrume 41a und 41b gegenläufig bewegt, wodurch sämtliche photovoltaischen Elemente 3 um zumindest angenähert vertikale Achsen verschwenkt werden, sodass sie der Ost-West- Bewegung der Sonne nachgeführt werden.FIG. 1 shows a middle position of the photovoltaic elements 3. By a rotation of the deflection pulleys 42, the respective two Seiltrume 41 a and 41 b are moved in opposite directions, whereby all photovoltaic elements 3 are pivoted about at least approximately vertical axes, so that they are tracked the east-west movement of the sun.
Durch eine Verdrehung der Umlenkscheiben 52 werden die jeweiligen beiden Seiltrume 51a und 51b gegenläufig bewegt, wodurch über die Schwenkhebel 33 und die Achszapfen 32 die photovoltaischen Elemente 3 um zumindest angenähert horizontale Achsen verdreht werden, wodurch sie auf die Höhe des Sonnenstandes eingestellt werden. Eine derartige Lage der photovoltaischen Elemente ist in Fig.2 dargestellt.By a rotation of the deflection pulleys 52, the respective two Seiltrume 51 a and 51 b are moved in opposite directions, whereby the photovoltaic elements 3 are rotated about at least approximately horizontal axes on the pivot lever 33 and the axle journals 32, whereby they are adjusted to the height of the sun. Such a position of the photovoltaic elements is shown in Fig.2.
Da die verstellbaren Seile sowohl die Tragfunktion als auch die Stellfunktion für die photovoltaischen Elemente erfüllen, wird eine maßgebliche Vereinfachung in der konstruktiven Gestaltung erzielt.
Since the adjustable cables fulfill both the support function and the positioning function for the photovoltaic elements, a significant simplification in the structural design is achieved.
Claims
1. Anlage zur Gewinnung von elektrischer Energie mittels photovoltaischer Elemente (3), welche sich auf einem überwiegend durch Trag- bzw. Stellseile gebildeten Tragwerk (2) befinden, wobei die photovoltaischen Elemente (3] um zumindest angenähert vertikal ausgerichtete Achsen sowie zudem um zumindest angenähert horizontal ausgerichtete Achsen verschwenkbar sind, dadurch gekennzeichnet, dass am Tragwerk (2) abwechselnd zwei Arten von in sich geschlossenen Trag- und Stellseilen (41, 51) vorgesehen sind, zwischen welchen sich jeweils eine Gruppe von photovoltaischen Elementen (3) befindet und an welche die Enden der zumindest angenähert horizontal ausgerichteten Achsen der photovoltaischen Elemente (3) angelenkt sind, wobei durch eine erste Art der Trag- und Stellseile (41) die photovoltaischen Elemente (3) um zumindest angenähert vertikal ausgerichtete Achsen verschwenkbar sind, wodurch sie der Ost-West-Bewegung der Sonne nachführbar sind und durch die zweite Art der Trag- und Stellseile (51) die photovoltaischen E- lemente (3) um zumindest angenähert horizontal ausgerichtete Achsen verschwenkbar sind, wodurch sie auf die Höhe des Sonnenstandes einstellbar sind.1. Plant for the production of electrical energy by means of photovoltaic elements (3), which are located on a predominantly formed by support or control cables supporting structure (2), wherein the photovoltaic elements (3] to at least approximately vertically aligned axes and also at least approximately horizontally oriented axes are pivotable, characterized in that the support structure (2) alternately two types of self-contained support and control cables (41, 51) are provided, between each of which is a group of photovoltaic elements (3) and at which the ends of the at least approximately horizontally oriented axes of the photovoltaic elements (3) are articulated, wherein the photovoltaic elements (3) are pivotable about at least approximately vertically aligned axes by a first type of support and control cables (41) -West movement of the sun are trackable and through the second type of support and Ste The cables (51), the photovoltaic E- elements (3) are pivotable about at least approximately horizontally aligned axes, whereby they are adjustable to the height of the sun.
2. Anlage nach Anspruch 1, dadurch gekennzeichnet, dass jedes Stellseil der ersten Art durch ein in sich geschlossenes Seil (41) gebildet ist, welches über zwei zumindest angenähert horizontal ausgerichtete Umlenkscheiben (42, 43) geführt ist und welches somit zwei zumindest angenähert horizontal nebeneinander befindliche Seiltrume (41a, 41b) aufweist, wobei das jeweils zugeordnete Ende der horizontalen Achsen (31) der anliegenden photovoltaischen Elemente (3) an jeweils eines der beiden Seiltrume (41a, 41b) angelenkt ist.2. Installation according to claim 1, characterized in that each control cable of the first type by a self-contained rope (41) is formed, which is guided over two at least approximately horizontally aligned deflection pulleys (42, 43) and which thus two at least approximately horizontally side by side Seiltrume (41a, 41b), wherein the respectively associated end of the horizontal axes (31) of the adjacent photovoltaic elements (3) on each one of the two Seiltrume (41a, 41b) is articulated.
3. Anlage nach Anspruch 2, dadurch gekennzeichnet, dass zumindest eine der Umlenkscheiben (42, 43) antreibbar ist.3. Plant according to claim 2, characterized in that at least one of the deflection pulleys (42, 43) is drivable.
4. Anlage nach Anspruch 3, dadurch gekennzeichnet, dass die antreibbaren Umlenkscheiben (42) bzw. Gruppen derselben über einen gemeinsamen Antrieb, z.B. ein Antriebsseil (44), miteinander auf Verdrehung gekuppelt sind.4. Plant according to claim 3, characterized in that the drivable deflection pulleys (42) or groups thereof via a common drive, e.g. a drive cable (44) are coupled with each other on rotation.
5. Anlage nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass jedes Stellseil der zweiten Art durch ein in sich geschlossenes Seil (51) gebildet ist, welches über zwei zumindest angenähert vertikal ausgerichtete Umlenkscheiben (52, 53) geführt ist und welches somit zwei zumindest angenähert vertikal übereinander befindliche Seiltrume (51a, 51b) aufweist, wobei das jeweils zugeordnete Ende der zumindest angenähert horizontal ausgerichteten Achsen (32) der anliegenden pho- tovoltaischen Elemente (3) mittels eines zweiarmigen Hebels (33) an beide diese Seiltrume (51a, 51b) angelenkt ist.5. Installation according to one of claims 1 to 4, characterized in that each actuating cable of the second type by a self-contained rope (51) is formed, which is guided over two at least approximately vertically aligned deflection pulleys (52, 53) and which thus two at least approximately vertically on top of each other The respective associated end of the at least approximately horizontally oriented axes (32) of the adjacent photovoltaic elements (3) by means of a two-armed lever (33) to both these Seiltrume (51a, 51b) is articulated ,
6. Anlage nach Anspruch 5, dadurch gekennzeichnet, dass zumindest eine der beiden Umlenkscheiben (52, 53) antreibbar ist.6. Plant according to claim 5, characterized in that at least one of the two deflection pulleys (52, 53) is drivable.
7. Anlage nach Anspruch 6, dadurch gekennzeichnet, dass die antreibbaren Umlenkscheiben (52) bzw. Gruppen derselben über einen gemeinsamen Antrieb, z.B. eine Antriebswelle (54), miteinander auf Verdrehung gekuppelt sind. 7. Installation according to claim 6, characterized in that the drivable deflection pulleys (52) or groups thereof via a common drive, e.g. a drive shaft (54) are coupled to each other for rotation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT19912006 | 2006-11-30 | ||
| ATA1991/2006 | 2006-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2008064382A2 true WO2008064382A2 (en) | 2008-06-05 |
| WO2008064382A3 WO2008064382A3 (en) | 2008-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/AT2007/000531 WO2008064382A2 (en) | 2006-11-30 | 2007-11-26 | System for generating electric power by means of photovoltaic elements |
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| WO (1) | WO2008064382A2 (en) |
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| WO2008064382A3 (en) | 2008-07-17 |
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