WO2023233046A1 - Suiveur solaire monoposte à deux axes - Google Patents

Suiveur solaire monoposte à deux axes Download PDF

Info

Publication number
WO2023233046A1
WO2023233046A1 PCT/ES2022/070339 ES2022070339W WO2023233046A1 WO 2023233046 A1 WO2023233046 A1 WO 2023233046A1 ES 2022070339 W ES2022070339 W ES 2022070339W WO 2023233046 A1 WO2023233046 A1 WO 2023233046A1
Authority
WO
WIPO (PCT)
Prior art keywords
rows
column
panels
hub
actuators
Prior art date
Application number
PCT/ES2022/070339
Other languages
English (en)
Spanish (es)
Inventor
Manuel Lahuerta Romeo
Original Assignee
Manuel Lahuerta Romeo
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 Manuel Lahuerta Romeo filed Critical Manuel Lahuerta Romeo
Priority to PCT/ES2022/070339 priority Critical patent/WO2023233046A1/fr
Publication of WO2023233046A1 publication Critical patent/WO2023233046A1/fr

Links

Classifications

    • 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
    • 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

Definitions

  • the object of the invention is to achieve a structure equipped with two-axis solar tracking, which allows greater use of both the solar energy and the available land, by allowing machines with high unit power, of reduced height in relation to their size, to be executed. that minimize the spaces occupied by the shadows cast, increasing the power density (MW / ha), while allowing other simultaneous uses of the land.
  • the field of application of the present invention is both self-consumption installations connected to the grid that, in current Spanish legislation, allow up to powers of 100 kW with monthly net balance, and applications for direct solar pumping in installations isolated from the grid that use positive displacement pumps, as well as their optimal power/occupied surface ratio, the implementation of large photovoltaic parks or/and the repowering of existing photovoltaic parks, as well as unique installations, for example, those applied to vehicle recharging.
  • the market offers different designs of trackers with two-axis tracking.
  • the rotating structures are built on the mobile ring of a toothed and motorized bearing.
  • the azimuthal orientation that represents 75% of the gain for locations located between 30° / 60° parallels, is based on gear mechanisms, bearing crown, pinion, reducer driven by a motor with brake, mechanisms that, to maintain orientation, must withstand the thrust and torques caused by the action of the wind on the panel-holder grill, which generate mechanical breaks in the power train due to the irreversibility of the motor with brake.
  • the two-axis trackers on the market achieve their zenith focus by tilting the entire panel-carrying grid at angles ranging from 30° to 70°, which means great exposure to the wind and very long shadows cast, which which involves spacing out the followers, using large areas of land.
  • the present application for invention finds the solution to the problems posed, on the one hand, by replacing the geared motors with brakes for their azimuthal orientation with rotation and friction braking systems, and on the other, by arranging the zenithal orientation of the rows of panels, individually as “blind slats”, on a grill with a fixed slope (7 o ), instead of tilting the entire grill.
  • a solar tracker is designed to focus the solar collectors to increase their production.
  • the Earth moves with respect to the Sun at an average speed of 15° per hour, that is, you will have to wait 12 minutes to move 3 o .
  • solar collectors require a precision of +/- 6 or at which point they begin to lose performance. Therefore, a tracker structure must correct its azimuthal focus at intervals of less than 6 o . Since for small angles and large radii, the length of the arc is similar to the chord, for turns of 3 o in a radius of 0.75 m, the displacement of the linear actuator will be:
  • Azimuth tracking represents the majority of the gain (75%) for installations at latitudes close to the 40° parallel
  • the clamps will work alternately and synchronously in a “rope pull” mode.
  • the follower will always be braked by at least one clamp, since its objective is to maintain the position, while alternatively the one or the others move to occupy the new position. While this movement lasts, the brake caliper will be open and will not exert pressure on the fixed disc secured to the column. Once it reaches the new position, the clamp will close and the actuator will lock, thus holding the position of the follower.
  • Our design reduces wind thrust by offering a minimum cross-sectional profile, by carrying the panels lying down, grouped in rows on an inclined plane with a fixed angle (7 o ). At the same time, it reduces the thrust application arm by placing the bearing at the highest point of the inverted cube, close to the thrust center of the rotating grill.
  • the inverted cube will have the shape of an octagonal prism, from whose faces there will be eight arms, like spokes, with different inclinations, the whole of which forms the base of the rotating structure. On the ends of the eight arms there will be a flat surface formed by the three stringers where the rows of panels will be located, on labeled supports, like “blind slats”, at a variable distance between them to reduce shadows between rows. depending on the parallel location of the photovoltaic field which, ultimately, will determine the angles of the solar path. We will call the set of rows of panels a grid.
  • the lengths of the rows of panels will be distributed in different lengths in order to seek an elliptical shape contour, reducing the length of the north / south axis, and lengthening that of the east / west axis, in order to minimize the shadows cast, achieving a higher power density of the photovoltaic park.
  • Other contour shapes (circular, rectangular, etc.) can be achieved if desired.
  • the new two-axis single-pole tracker represents an innovative structure with construction characteristics unknown until now for this purpose, reasons that, together with its practical usefulness, provide the basis for obtaining the privilege of exclusivity requested.
  • Figure 1 shows a plan view of the structure of the follower according to the invention, in which the inverted cube (1) can be seen from which eight arms (2) radiate at different inclinations, on which the three rest. stringers (3) that form the inclined plane on which the rows (4) of the solar collectors (11) are spaced apart on supports with ball joints (12)
  • Figure 2 shows a profile view of the follower in which the structural assembly can be seen on the column (5) showing the brake disc (8) and the arms (2) at a different inclination, starting radially from the inverted hub.
  • (1) support the stringers (3) that form the inclined plane on which the rows of panels (4) are fixed on swivels (12) as “blind slats” synchronously oriented by a connecting rod-crank mechanism (13) driven by actuators (10).
  • Figure 3 shows section and profile of the assembly detail of the inverted hub (1) on the mobile ring of the bearing (7) located in the upper part of the embraced column (5). by the disc (8) on which the two or more negative brake calipers (9) integrated in the housing of two or more linear actuators (10) act, which cause both the azimuthal rotation and the maintenance of the position.
  • Figure 4 represents a detail of the overhead drive of the rows (4) of the solar collectors (11) in which you can see the support with a ball joint (12) on the stringers (3) that form the inclined plane.
  • the rows (4) of the solar collectors (11) are driven in unison by linear actuators (10) through a connecting rod/crank mechanism (13).
  • the selected panel is the Vertex 550 model with dimensions 2,380 x 1100 x 40 and a unit power of 550 watts.
  • the way to distribute the 200 panels will be in rows of different lengths to form an elliptical contour.
  • Each row (4) of solar collectors (11) will rest on three ball joints (12) screwed to the stringers (3) that form an inclined plane depending on the latitude of their location, which facilitates the zenith focus and minimizes the separation between rows (4) increasing the power density.
  • the stringers (3) as well as the rows (4) of panels will be sized with maximum lengths of 12 m for supply and transportation reasons. With these criteria, the grid of 200 panels in rows with an elliptical contour will have diameters of 25 m on the north/south axis, and 28 m on the east/west axis.
  • Each beam (3) will rest on three points screwed to the ends of the 8 radial arms (2) that converge on the inverted cube (1), joined at its bottom to the mobile ring of a large diameter bearing (7) located in the end of the column (5).
  • the weight on the bearing of the entire rotating part, including sensors, will amount to 15,000 kg «150 KN
  • the rolling diameter of the balls is 1005 mm with each ball being 20 mm, which will mean, according to the manufacturer's data, being able to withstand for this axial load of 150 KN and a tipping torque of 460 KN x meter (See Rotherde catalog , KD 600 series, model 062.20.1094.500.01 .1503).
  • This overturning torque is constant for axial loads of up to 300 KN, so the excess weight due to snow remains within the reserve margin of the bearing (7).
  • the overturning torque will be caused by the drag force of the wind when it affects the projected area in any direction (windward, leeward or profile).
  • the azimuthal rotation will be caused by the linear actuators (10), integral with the hub (1), which integrate, in their mobile casing, the negative brake calipers (9) that clamp the fixed disc (8) that embraces the column ( 5).
  • the linear actuators (10) will be fixed to the hub (1) using two pins, one at each end of the through stem, so that when acting, it will remain fixed, with the casing being the one to move.
  • Each housing will integrate into its structure a negative brake caliper (9) in such a way that through a sequence of signals from a programmer, two or more calipers (9) can be actuated alternatively and synchronously to make the rotating part of the follower move. azimuthally in one direction or another (swaying) without making a complete revolution and at the same time remaining fixed in a position for a certain time.
  • the moving part of the tracker will rotate at intervals of 3 o during the day in the East - West direction and will return to its starting position (ortho) at night.
  • the linear actuators (10) will be sized with a force lower than the drag force of the clamps (9) to, in no case, cause slippage and thus avoid premature wear.
  • the zenithal orientation will be achieved by attaching the rows (4) of the panel-holder tubes to a connecting rod-crank mechanism activated by linear actuators (10), electric or hydraulic, on a bar that synchronizes them. Control of the zenith angle is carried out using an inclinometer.

Landscapes

  • 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

Suiveur solaire monoposte à deux axes caractérisé en ce qu'il consiste en une structure rotative construite à partir d'un cube inversé, croisé au niveau de sa base avec la bague mobile d'un roulement (7) solidaire à l'extrémité d'une colonne (5), dont le mécanisme d'orientation azimutal profite de la force de friction de deux ou plusieurs pinces de frein négatives (9) intégrées dans les boîtiers de deux ou plusieurs actionneurs linéaires de tige traversante (10), fixés au cube (1). La rotation s'effectue par pinçage et traction des actionneurs (10) alternativement et de manière synchrone, sur un disque de frein fixe (8) qui embrasse la colonne (5). Jusqu'à huit bras d'inclinaison différente partent radialement de la périphérie du cube (1), les extrémités desquels supportent trois montants parallèles (3) qui forment un plan d'inclinaison fixe orienté à midi, sur lequel se fixent transversalement les rangées de panneaux (4) sur les rotules (12). La mise au point zénitale de chaque rangée se synchronise à l'aide du mécanisme bielle-manivelle (13).
PCT/ES2022/070339 2022-06-02 2022-06-02 Suiveur solaire monoposte à deux axes WO2023233046A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2022/070339 WO2023233046A1 (fr) 2022-06-02 2022-06-02 Suiveur solaire monoposte à deux axes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2022/070339 WO2023233046A1 (fr) 2022-06-02 2022-06-02 Suiveur solaire monoposte à deux axes

Publications (1)

Publication Number Publication Date
WO2023233046A1 true WO2023233046A1 (fr) 2023-12-07

Family

ID=89025786

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2022/070339 WO2023233046A1 (fr) 2022-06-02 2022-06-02 Suiveur solaire monoposte à deux axes

Country Status (1)

Country Link
WO (1) WO2023233046A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030094194A1 (en) * 2001-11-20 2003-05-22 Gilberto Mattiuzzo Device for converting solar radiation into electric power
ES2253099A1 (es) * 2004-09-03 2006-05-16 Manuel Lahuerta Romero Seguidor solar.
EP2090848A1 (fr) * 2006-12-05 2009-08-19 Soltec Energías Renovables, SL Suiveur solaire biaxial
ES2330703A1 (es) * 2007-09-07 2009-12-14 Manuel Lahuerta Romeo Pinza de freno tractora.
ES2334187A1 (es) * 2006-10-03 2010-03-05 Manuel Lahuerta Romeo Seguidor solar de tres ejes de gran superficie.
EP2163834A1 (fr) * 2008-09-12 2010-03-17 Massimo Venturelli Appareil de poursuite de rayonnement solaire pour des panneaux absorbant ce rayonnement solaire
WO2018090155A1 (fr) * 2016-11-21 2018-05-24 Pontificia Universidad Catolica De Chile Systèmes de suivi du soleil à persiennes de capteurs solaires et procédés associés

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030094194A1 (en) * 2001-11-20 2003-05-22 Gilberto Mattiuzzo Device for converting solar radiation into electric power
ES2253099A1 (es) * 2004-09-03 2006-05-16 Manuel Lahuerta Romero Seguidor solar.
ES2334187A1 (es) * 2006-10-03 2010-03-05 Manuel Lahuerta Romeo Seguidor solar de tres ejes de gran superficie.
EP2090848A1 (fr) * 2006-12-05 2009-08-19 Soltec Energías Renovables, SL Suiveur solaire biaxial
ES2330703A1 (es) * 2007-09-07 2009-12-14 Manuel Lahuerta Romeo Pinza de freno tractora.
EP2163834A1 (fr) * 2008-09-12 2010-03-17 Massimo Venturelli Appareil de poursuite de rayonnement solaire pour des panneaux absorbant ce rayonnement solaire
WO2018090155A1 (fr) * 2016-11-21 2018-05-24 Pontificia Universidad Catolica De Chile Systèmes de suivi du soleil à persiennes de capteurs solaires et procédés associés

Similar Documents

Publication Publication Date Title
US5325844A (en) Lightweight, distributed force, two-axis tracking, solar radiation collector structures
ES2820869T3 (es) Dispositivo de seguimiento con como mínimo una estructura de alojamiento que puede ser regulada como mínimo alrededor de un eje para el montaje de como mínimo un elemento sensible a las ondas electromagnéticas con una dirección de avance por técnica de radiación
TWI424136B (zh) 用於太陽能板之雙軸式太陽追蹤器系統與裝置
US8322332B2 (en) Self-erecting gimbal mounted solar radiation collectors
US20160226437A1 (en) Heliostat apparatus and solar heat collecting apparatus and concentrating photovoltaic apparatus
CN102043228B (zh) 一种自旋-仰角跟踪模式定日镜的稳定支撑装置
US10148221B2 (en) Solar energy light collecting device and system thereof
ES2492697T3 (es) Instalación con una estructura de alojamiento regulable en un eje alrededor de un eje horizontal para el alojamiento de uno o varios paneles solares o módulos fotovoltaicos o similares
CN112343761A (zh) 集自动寻光太阳能、风能、潮汐能于一体的海上发电装置
AU2010358879B2 (en) Solar concentrator with support system and solar tracking
WO2023233046A1 (fr) Suiveur solaire monoposte à deux axes
ES2352767B1 (es) Seguidor solar circular de doble eje.
US8378282B2 (en) Device for increasing the luminous flux per unit area with the ability to reduce the light-taking distance in respect to the opposite light source
US20130128329A1 (en) Device for concentrating solar radiation with longitudinal mirrors and a longitudinal receiver
RU160476U1 (ru) Солнечная энергетическая установка
WO2009030792A1 (fr) Dispositif de poursuite solaire mécanique
ES2446765B1 (es) Seguidor solar de dos ejes
CN202614969U (zh) 一种线性菲涅尔太阳能可调曲率反射镜装置
JP2015118360A (ja) ヘリオスタット装置ならびに太陽熱集熱装置および太陽光集光発電装置
BR112021003338A2 (pt) gerador elétrico solar.
CN102062480B (zh) 一种利用太阳能给真空集热器加热的极轴式自动跟踪系统
WO2011076963A1 (fr) Disque collecteur concentrateur de rayonnement solaire à double réflexion et foyer fixe
CN213775585U (zh) 集自动寻光太阳能、风能、潮汐能于一体的海上发电装置
ES1264624U (es) Planta solar que comprende una torre central y un campo de heliostatos, y heliostato de uso en dicha planta solar
ES1063689U (es) "seguidor solar de doble eje".

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22944718

Country of ref document: EP

Kind code of ref document: A1