MD1052Z - Photovoltaic panel biaxial orientation system - Google Patents

Photovoltaic panel biaxial orientation system Download PDF

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Publication number
MD1052Z
MD1052Z MDS20150154A MDS20150154A MD1052Z MD 1052 Z MD1052 Z MD 1052Z MD S20150154 A MDS20150154 A MD S20150154A MD S20150154 A MDS20150154 A MD S20150154A MD 1052 Z MD1052 Z MD 1052Z
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MD
Moldova
Prior art keywords
photovoltaic panel
rod
shaft
bushing
biaxial orientation
Prior art date
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MDS20150154A
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Romanian (ro)
Russian (ru)
Inventor
Ион БОСТАН
Валериу ДУЛГЕРУ
Олег ЧОБАНУ
Раду ЧОБАНУ
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Технический университет Молдовы
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Priority to MDS20150154A priority Critical patent/MD1052Z/en
Publication of MD1052Y publication Critical patent/MD1052Y/en
Publication of MD1052Z publication Critical patent/MD1052Z/en

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/47Mountings or tracking

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  • Photovoltaic Devices (AREA)

Abstract

The invention relates to power engineering, in particular to photovoltaic panel biaxial orientation systems, and can be used in the orientation of photovoltaic panels by the sun.The photovoltaic panel biaxial orientation system comprises a photovoltaic panel (1), a shaft (2) for orientation of the photovoltaic panel (1) in the meridional plane, and a rotation mechanism, consisting of a worm reduction gearbox (3) and an electric motor (4). The photovoltaic panel (1) is pivotally connected in its middle part to the shaft (2) and kinematically to the rotation mechanism. In the lower part the photovoltaic panel (1) is pivotably connected by means of a pull rod (5) to a cylindrical sleeve (6). On the contact surface of the shaft (2) with the sleeve (6) is made a sinusoidal channel (9), in which is placed a roller (10). The pull rod (5) comprises a threaded sleeve (13), which on one side is connected to a threaded end (11) of the pull rod (5), and on the other side the sleeve (13) is connected to the opposite end (12) of the rod (5) by means of rollers (14).

Description

Invenţia se referă la energetică, în special la sisteme de orientare biaxială a panourilor fotovoltaice, şi poate fi utilizată la orientarea panourilor fotovoltaice după soare. The invention relates to energy, in particular to biaxial orientation systems for photovoltaic panels, and can be used to orient photovoltaic panels towards the sun.

Este cunoscut un sistem de orientare după soare, care conţine motoare cu rotor rulant şi întrefier axial, destinate să acţioneze panoul solar după cele două axe, care definesc sistemul de orientare azimutală, motoarele fiind alimentate cu câte o succesiune de impulsuri furnizate de o sursă de curent continuu, comandată prin intermediul unui calculator [1]. A sun-tracking system is known, which contains motors with a rolling rotor and axial air gap, designed to drive the solar panel along the two axes that define the azimuthal tracking system, the motors being powered by a sequence of pulses provided by a direct current source, controlled by a computer [1].

Dezavantajele sistemului cunoscut constau în construcţia complicată şi eficienţa de conversie scăzută. The disadvantages of the known system consist in the complicated construction and the low conversion efficiency.

De asemenea este cunoscut un sistem de orientare după două axe, care conţine o platformă acţionată de un motor rotativ. Mişcarea de rotaţie a motorului de acţionare este transmisă unei roţi melcate, prin intermediul unui melc fixat de un arbore vertical, pe care este montată şi o roată dinţată conică, ce angrenează cu nişte roţi conice, ce sunt montate pe un arbore orizontal, pe care este asamblată o platformă orientabilă cu panouri fotovoltaice. Componentele sistemului sunt dispuse în interiorul unei carcase mobile a transmisiei, iar pentru comanda sistemului sunt prevăzute nişte cuplaje frână, cuplate prin intermediul unor arcuri, care pot fi decuplate cu ajutorul unor bobine electromagnetice [2]. Also known is a two-axis orientation system, which contains a platform driven by a rotary motor. The rotational movement of the drive motor is transmitted to a worm wheel, by means of a worm fixed to a vertical shaft, on which is mounted a bevel gear, which meshes with bevel gears, which are mounted on a horizontal shaft, on which is assembled a directional platform with photovoltaic panels. The components of the system are arranged inside a mobile transmission housing, and for the control of the system are provided some brake couplings, coupled by means of springs, which can be decoupled using electromagnetic coils [2].

Dezavantajele sistemului cunoscut constau în construcţia complicată şi eficienţa de conversie scăzută. The disadvantages of the known system consist in the complicated construction and the low conversion efficiency.

Problema pe care o rezolvă invenţia solicitată constă în simplificarea construcţiei şi majorarea eficienţei de conversie. The problem solved by the claimed invention consists in simplifying the construction and increasing the conversion efficiency.

Problema se soluţionează prin aceea că sistemul de orientare biaxială a unui panou fotovoltaic conţine un panou fotovoltaic, un arbore de orientare a panoului fotovoltaic în plan meridional, şi un mecanism de rotaţie, constituit dintr-un reductor melcat şi un motor electric. Panoul fotovoltaic este unit articulat în partea lui de mijloc cu arborele şi cinematic cu mecanismul de rotaţie, iar în partea de jos panoul fotovoltaic este legat articulat prin intermediul unei tije de lungime reglabilă cu o bucşă cilindrică, instalată pe arbore. Pe suprafaţa de contact a arborelui cu bucşa este executat un canal sinusoidal, pe suprafaţa interioară a bucşei este executat un locaş sferic, iar în canalul sinusoidal şi în locaşul sferic este amplasată o bilă. Tija conţine o bucşă filetată, care dintr-o parte este unită cu un capăt filetat al tijei, iar de altă parte bucşa este unită cu capătul opus al tijei prin intermediul unor bile, amplasate în caneluri circulare închise, executate pe suprafeţele de contact ale bucşei cu capătul opus al tijei. The problem is solved by the fact that the biaxial orientation system of a photovoltaic panel contains a photovoltaic panel, a shaft for orienting the photovoltaic panel in the meridional plane, and a rotation mechanism, consisting of a worm gear and an electric motor. The photovoltaic panel is articulated in its middle part with the shaft and kinematically with the rotation mechanism, and in the lower part the photovoltaic panel is articulated by means of an adjustable length rod with a cylindrical bushing, installed on the shaft. A sinusoidal channel is made on the contact surface of the shaft with the bushing, a spherical recess is made on the inner surface of the bushing, and a ball is placed in the sinusoidal channel and in the spherical recess. The rod contains a threaded bushing, which on one side is connected to a threaded end of the rod, and on the other side the bushing is connected to the opposite end of the rod by means of balls, placed in closed circular grooves, made on the contact surfaces of the bushing with the opposite end of the rod.

Avantajele invenţiei constau în aceea că legarea simplificată a panoului fotovoltaic, prin intermediul unei tije de lungime reglabilă, al unei bucşe cu o bilă instalată într-un locaş sferic, executat în bucşă şi un canal sinusoidal, executat pe suprafaţa arborelui, acţionat în mişcare de rotaţie cu ajutorul unui mecanism de acţionare, asigură orientarea panoului în plan meridional şi azimutal; executarea tijei cu lungime reglabilă asigură reglarea suplimentară a panoului fotovoltaic în plan azimutal, legată de factorul sezonier. The advantages of the invention consist in the fact that the simplified connection of the photovoltaic panel, by means of a rod of adjustable length, of a bushing with a ball installed in a spherical recess, made in the bushing and a sinusoidal channel, made on the surface of the shaft, driven in rotational motion by means of an actuator, ensures the orientation of the panel in the meridional and azimuthal plane; the execution of the rod with adjustable length ensures the additional adjustment of the photovoltaic panel in the azimuthal plane, related to the seasonal factor.

Invenţia se explică prin desenele din fig. 1 - 3, care reprezintă: The invention is explained by the drawings in Fig. 1 - 3, which represent:

- fig. 1, vederea generală a sistemului de orientare biaxială a unui panou fotovoltaic; - Fig. 1, general view of the biaxial orientation system of a photovoltaic panel;

- fig. 2, desfăşurata canalului sinusoidal şi a bucşei, vederea I din fig. 1; - Fig. 2, development of the sinusoidal channel and the bushing, view I of Fig. 1;

- fig. 3, construcţia mecanismului de reglare a lungimii tijei de suport a panoului fotovoltaic, vederea II din fig. 1. - fig. 3, construction of the mechanism for adjusting the length of the photovoltaic panel support rod, view II of fig. 1.

Sistemul de orientare biaxială a unui panou fotovoltaic conţine un panou fotovoltaic 1, legat articulat în partea de mijloc cu un arbore 2 de orientare a panoului, care este antrenat în mişcare de rotaţie printr-un mecanism de rotaţie, constituit dintr-un reductor melcat 3 şi un motor electric 4. Panoul fotovoltaic 1 este unit articulat în partea lui de mijloc cu arborele 2 şi cinematic cu mecanismul de rotaţie, iar în partea de jos panoul fotovoltaic 1 este legat articulat prin intermediul unei tije 5 de lungime reglabilă cu o bucşă 6 cilindrică, instalată pe arborele 2. Pe suprafaţa cilindrică interioară 7 a bucşei 6 este executat un locaş sferic 8, iar pe suprafaţa de contact a arborelui 2 cu bucşa 6 este executat un canal sinusoidal 9. În canalul sinusoidal 9 şi în locaşul sferic 8 este amplasată o bilă 10. Tija 5 conţine o bucşă 13 filetată, care dintr-o parte este unită cu un capăt 11 filetat al tijei 5, iar de altă parte bucşa 13 este unită cu capătul 12 opus al tijei 5 prin intermediul unor bile 14, amplasate în caneluri circulare închise 15, 16, executate pe suprafeţele de contact ale bucşei 13 cu capătul 12 opus al tijei 5. The biaxial orientation system of a photovoltaic panel contains a photovoltaic panel 1, articulated in the middle part with a panel orientation shaft 2, which is driven into rotation by a rotation mechanism, consisting of a worm gear 3 and an electric motor 4. The photovoltaic panel 1 is articulated in its middle part with the shaft 2 and kinematically with the rotation mechanism, and at the bottom the photovoltaic panel 1 is articulated by means of a rod 5 of adjustable length with a cylindrical bushing 6, installed on the shaft 2. On the inner cylindrical surface 7 of the bushing 6, a spherical recess 8 is made, and on the contact surface of the shaft 2 with the bushing 6, a sinusoidal channel 9 is made. A ball 10 is placed in the sinusoidal channel 9 and in the spherical recess 8. The rod 5 contains a threaded bushing 13, which on one side is joined with a threaded end 11 of the rod 5, and on the other hand the bushing 13 is connected to the opposite end 12 of the rod 5 by means of balls 14, placed in closed circular grooves 15, 16, made on the contact surfaces of the bushing 13 with the opposite end 12 of the rod 5.

Sistemul de orientare biaxială a panoului fotovoltaic funcţionează în modul următor. The photovoltaic panel biaxial orientation system works in the following way.

La pornirea motorului electric 4 mişcarea de rotaţie redusă în reductorul melcat 3 este transmisă axului principal 2, care asigură orientarea (rotirea) panoului fotovoltaic 1 în plan meridional. Simultan mişcarea de rotaţie a arborelui 2 în urma angrenării bilei 10 cu canalul sinusoidal 9 este transformată în mişcare de translaţie a bucşei 6 de-a lungul arborelui 2. Ca rezultat al acestei mişcări de translaţie tija 5, legată articulat cu bucşa 6, schimbă poziţia, realizând schimbarea poziţiei panoului fotovoltaic 1 în plan azimutal. When the electric motor 4 is started, the reduced rotational motion in the worm gear 3 is transmitted to the main shaft 2, which ensures the orientation (rotation) of the photovoltaic panel 1 in the meridional plane. Simultaneously, the rotational motion of the shaft 2 due to the engagement of the ball 10 with the sinusoidal channel 9 is transformed into a translational motion of the bushing 6 along the shaft 2. As a result of this translational motion, the rod 5, articulated with the bushing 6, changes position, thereby changing the position of the photovoltaic panel 1 in the azimuthal plane.

Varierea unghiului azimutal, legată de factorul sezonier, se efectuează periodic prin modificarea lungimii tijei 5 prin rotirea bucşei 13 care, angrenând cu filetul părţii 11 a tijei 5, o deplasează într-o direcţie - de micşorare sau alta - de mărire a lungimii tijei 5. The variation of the azimuth angle, related to the seasonal factor, is carried out periodically by changing the length of the rod 5 by rotating the bushing 13 which, engaging with the thread of the part 11 of the rod 5, moves it in one direction - to decrease or another - to increase the length of the rod 5.

Ca rezultat, invenţia permite de a simplifica construcţia prin orientarea panoului fotovoltaic în ambele planuri (meridional şi azimutal) prin intermediul unui reductor şi al unui motor electric. Varierea unghiului azimutal, legată de factorul sezonier, este realizată periodic cu ajutorul unui mecanism simplu. As a result, the invention allows to simplify the construction by orienting the photovoltaic panel in both planes (meridional and azimuthal) by means of a reducer and an electric motor. The variation of the azimuthal angle, related to the seasonal factor, is periodically achieved by means of a simple mechanism.

1. RO 125121 B1 2011.02.28 1. EN 125121 B1 2011.02.28

2. RO 126150 B1 2012.02.28 2. EN 126150 B1 2012.02.28

Claims (1)

Sistem de orientare biaxială a unui panou fotovoltaic, care conţine un panou fotovoltaic (1), un arbore (2) de orientare a panoului fotovoltaic (1) în plan meridional, şi un mecanism de rotaţie, constituit dintr-un reductor melcat (3) şi un motor electric (4), caracterizat prin aceea că panoul fotovoltaic (1) este unit articulat în partea lui de mijloc cu arborele (2) şi cinematic cu mecanismul de rotaţie, iar în partea de jos panoul fotovoltaic (1) este legat articulat prin intermediul unei tije (5) de o lungime reglabilă cu o bucşă (6) cilindrică, instalată pe arborele (2), pe suprafaţa de contact a arborelui (2) cu bucşa (6) este executat un canal sinusoidal (9), pe suprafaţa interioară a bucşei (6) este executat un locaş sferic (8), iar în canalul sinusoidal (9) şi în locaşul sferic (8) este amplasată o bilă (10), totodată tija (5) conţine o bucşă (13) filetată, care dintr-o parte este unită cu un capăt (11) filetat al tijei (5), iar de altă parte bucşa (13) este unită cu capătul (12) opus al tijei (5) prin intermediul unor bile (14), amplasate în caneluri circulare închise (15), (16), executate pe suprafeţele de contact ale bucşei (13) cu capătul (12) opus al tijei (5).Biaxial orientation system for a photovoltaic panel, comprising a photovoltaic panel (1), a shaft (2) for orienting the photovoltaic panel (1) in the meridional plane, and a rotation mechanism, consisting of a worm gear (3) and an electric motor (4), characterized in that the photovoltaic panel (1) is articulated in its middle part with the shaft (2) and kinematically with the rotation mechanism, and in the lower part the photovoltaic panel (1) is articulated by means of a rod (5) of an adjustable length with a cylindrical bushing (6), installed on the shaft (2), a sinusoidal channel (9) is made on the contact surface of the shaft (2) with the bushing (6), a spherical seat (8) is made on the inner surface of the bushing (6), and a ball (10) is placed in the sinusoidal channel (9) and in the spherical seat (8), at the same time the rod (5) contains a threaded bushing (13), which on one side is connected to a threaded end (11) of the rod (5), and on the other side the bushing (13) is connected to the opposite end (12) of the rod (5) by means of balls (14), placed in closed circular grooves (15), (16), made on the contact surfaces of the bushing (13) with the opposite end (12) of the rod (5).
MDS20150154A 2015-11-16 2015-11-16 Photovoltaic panel biaxial orientation system MD1052Z (en)

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MD1052Z true MD1052Z (en) 2017-02-28

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD2965B1 (en) * 2004-12-28 2006-01-31 Universitatea Tehnica A Moldovei Self-orienting solar plant
RO125121B1 (en) * 2008-12-02 2011-02-28 Universitatea "Ştefan Cel Mare" Din Suceava System for orientation according to the sun
RO126150B1 (en) * 2009-09-21 2012-02-28 Universitatea "Transilvania" Din Braşov System for orientation about two axes with a single motor
EA201290348A1 (en) * 2009-11-18 2012-12-28 Франц Хильбер ADJUSTMENT DEVICE FOR STATIONARY PHOTOGALVANIC INSTALLATION
MD887Y (en) * 2014-08-11 2015-02-28 Universitatea Tehnică A Moldovei System for the orientation of the platform with solar panels by the sun
MD4401B1 (en) * 2015-09-30 2016-02-29 Universitatea Tehnică A Moldovei Photovoltaic panel orientation system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD2965B1 (en) * 2004-12-28 2006-01-31 Universitatea Tehnica A Moldovei Self-orienting solar plant
RO125121B1 (en) * 2008-12-02 2011-02-28 Universitatea "Ştefan Cel Mare" Din Suceava System for orientation according to the sun
RO126150B1 (en) * 2009-09-21 2012-02-28 Universitatea "Transilvania" Din Braşov System for orientation about two axes with a single motor
EA201290348A1 (en) * 2009-11-18 2012-12-28 Франц Хильбер ADJUSTMENT DEVICE FOR STATIONARY PHOTOGALVANIC INSTALLATION
MD887Y (en) * 2014-08-11 2015-02-28 Universitatea Tehnică A Moldovei System for the orientation of the platform with solar panels by the sun
MD4401B1 (en) * 2015-09-30 2016-02-29 Universitatea Tehnică A Moldovei Photovoltaic panel orientation system

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