WO2017051360A1 - Réseau de poursuite solaire - Google Patents

Réseau de poursuite solaire Download PDF

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Publication number
WO2017051360A1
WO2017051360A1 PCT/IB2016/055687 IB2016055687W WO2017051360A1 WO 2017051360 A1 WO2017051360 A1 WO 2017051360A1 IB 2016055687 W IB2016055687 W IB 2016055687W WO 2017051360 A1 WO2017051360 A1 WO 2017051360A1
Authority
WO
WIPO (PCT)
Prior art keywords
solar tracking
tracking array
drive assembly
array according
actuator
Prior art date
Application number
PCT/IB2016/055687
Other languages
English (en)
Inventor
Russell Anthony BOWDEN
Shaun John DE PONTE
Original Assignee
Solar Track (Pty) Limited
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 Solar Track (Pty) Limited filed Critical Solar Track (Pty) Limited
Publication of WO2017051360A1 publication Critical patent/WO2017051360A1/fr
Priority to ZA2018/02690A priority Critical patent/ZA201802690B/en

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
    • F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
    • F24S30/425—Horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • 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
    • F24S30/455—Horizontal primary axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
    • F24S40/80—Accommodating differential expansion of solar collector elements
    • F24S40/85—Arrangements for protecting solar collectors against adverse weather conditions
    • 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
    • F24S2030/10—Special components
    • F24S2030/13—Transmissions
    • F24S2030/135—Transmissions in the form of threaded elements
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
    • 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 present invention relates to a solar tracking array. More specifically, the present invention relates to a solar tracking array which supports one or more photovoltaic panels and is capable of rotating the array about one or more axes using an actuator and drive assembly.
  • Solar tracking devices to be used in conjunction with photovoltaic panels are well known in the art, with many types of configurations already available.
  • So called static devices include a fixed structure supporting one or more photovoltaic panels in a fixed angled position relative to the sun.
  • These devices are relatively simple to erect and maintain, but have disadvantages in terms of the low overall efficiency of the supported photovoltaic panels. This is because the face of the photovoltaic panel is not perpendicular to that of the rays from the sun for the majority of the daylight hours. Additionally, these types of devices are vulnerable to the elements and can be damaged by excessive gusts of wind, hail, rain and the like.
  • linear tracking devices rotation is only possible about one of the above mentioned axis. More often than not, they are arranged along an axis running either from North to South (X axis) or East to West (Y axis). In the first instance, a roll about the X axis allows the photovoltaic panels to track the sun in its movement from East to West whereas in the second (less preferable) instance a pitch about the Y axis allows tracking of the sun from the horizon to its zenith. In either case, the overall efficiency of linear tracking devices is better than static devices as the angle of incidence is closer to the desired perpendicular angle.
  • linear tracking devices One benefit of such linear tracking devices is that numerous panels can be supported along the rotating axis (X or Y as the case may be) and this has a substantial cost benefit. However; this linear system may not be optimally efficient as no provision is made for rotation about the Z axis (yaw), which would enable the device to rotate the photovoltaic panels in an East to West direction.
  • United States Patent No. 6,058,930 teaches of a ganged single axis solar tracker system, wherein multiple solar trackers are linked together with a linear motion linkage and operated by a single linear actuator, such as a screw jack, attached to a separate foundation located away from the solar tracker system.
  • a single linear actuator such as a screw jack
  • An advantage of such an array is that the costs of motor and drive system are shared by multiple tracker rows.
  • an important disadvantage of this system is that both the linkage member and the drive has to withstand significant and often fluctuating wind loads on the entire tracker array, which necessitates the use of exceedingly expensive building materials and complicated drive systems to maintain a stable angle of incidence on the photovoltaic panel.
  • Cigar Patent Application No. CN102968127(A) discloses a linear driving device for a solar tracker comprising an outer tube and a sealing end cover arranged at the end portion of the outer tube; a screw arranged in the outer tube with one end of the screw being connected to a drive mechanism; a transmission nut in threaded match with the screw is arranged on the screw and a telescopic rod is arranged between the outer tube and the screw.
  • One end of the telescopic rod is connected with the transmission nut, with the other end of the telescopic rod penetrating through the sealing end cover for connecting with a solar panel support member.
  • CN102968127(A) acknowledges the fact that corresponding structural design should be performed on the aspects of deflection, load resistance and protection for the device according to the using environment of the solar tracker.
  • the disadvantage of providing further structural reinforcement is expected as telescopic rods' tensile strength are by its very nature inferior to that of a rigid solid member.
  • it is a significant disadvantage that the construction of the solar track system which is to use the drive system is not standardized which increases manufacturing and installation costs.
  • a further disadvantage is that such dual-axis devices require expensive machinery and, compared to single-axis devices, results in substantially higher maintenance and initial capital outlay costs. Increased overall efficiency of such dual-axis trackers therefore needs to be weighed up against the higher initial capital outlay and maintenance costs involved in installing such devices.
  • the solar tracking array should use fewer parts and rely on simpler mechanisms than existing linear and duel-axis tracking designs, while being more efficient than static devices.
  • a solar tracking array including:
  • the rotating means consisting of an actuator attached to the elongate member and a drive assembly attached both to the actuator and the vertical support shaft;
  • the drive assembly pivotally attached to the vertical support shaft such that the drive assembly can pivot about an axis substantially parallel to the axis of rotation of the elongate member;
  • the drive assembly pivoting as the actuator moves along its long axis to provide a constant distance between the actuator and the portion of the drive assembly to which the actuator is attached.
  • the actuator may be attached to a terminal end of the elongate member.
  • the drive assembly to be a screw drive.
  • the screw drive to be selected from any one of the group consisting of an acme screw drive, a ball screw drive and a roller screw drive.
  • the elongate member to be selected from any one of the group consisting of a square tube, round tube, bar, and spaced parallel round bars.
  • the solar tracking array to include a further pivoting means for pivoting the photovoltaic panel support frame along a second axis.
  • the further pivoting means pivots substantially about the Y (pitch) axis.
  • the pivoting means includes a secondary drive assembly.
  • the secondary drive assembly is attached to the elongate member.
  • the drive assembly is connected to a secondary actuator attached to the photovoltaic panel support frame.
  • the drive assembly to be a screw drive.
  • the screw drive to be selected from any one of the group consisting of an acme screw drive, a ball screw drive and a roller screw drive.
  • the secondary drive assembly engages the secondary actuator via a nut attached to the screw drive.
  • the secondary actuator is further connected to a plurality of photovoltaic panel support frames including further pivoting means, such that in operation the action of a single secondary drive assembly to move the secondary actuator pivots a plurality of photovoltaic panel support frames about their Y axes.
  • the drive assembly may include an electrical motor.
  • the rotating means is adjustable to a desired rate of rotation.
  • the rate of rotation is synchronized to track the sun East to West.
  • the rate of rotation is computed by a processor.
  • the solar tracking array includes a means to ascertain a geographic location of the device on earth. The means to ascertain a geographic location can be via GPS. In an alternative embodiment, a longitude and/or latitude co-ordinate can be entered directly into the device by a user according to the device's geographical location.
  • the solar tracking array includes an electronic control circuit in communication with the rotating means.
  • the rate of rotation is determined by the electronic control circuit in which astronomic calculations of the exact position of the sun are based on the current time and date and depending on the geographical position of the device.
  • the solar tracking array includes an electronic control circuit in communication with the pivoting means.
  • the rate of pivoting is determined by the electronic control circuit in which astronomic calculations of the exact position of the sun are based on the current time and date and depending on the geographical position of the device.
  • control circuit includes a sensing means enabling it to accurately determine the position and orientation/s of one or more photovoltaic panel support frames.
  • these sensing means include a two axis gyro and accelerometer sensor.
  • the device includes a power supply unit.
  • the power supply unity may be linked to supported photovoltaic panels.
  • the power supply unit includes at least one battery to store electrical power.
  • the device includes a communications means.
  • the communication means links the device to a network.
  • the communication means allows for an operator to remotely control the device from a remote location.
  • the communication means is used to transmit data to a network and/or remote system.
  • the device includes a weather warning system.
  • the weather warning system includes one or more of the following: wind measuring instruments (anemometer), atmospheric pressure instruments (barometer), temperature measuring instruments (thermometer) and/or humidity measuring instruments (hygrometer).
  • the weather warning system is located at a remote location.
  • the weather warning system is in communication with the device via a communication means.
  • an override feature in the event that a predetermined weather danger threshold is met by the weather warning system, an override feature provides for the solar tracking function to be overridden.
  • the override feature causes supported panels to be rotated into a predetermined safe mode position.
  • the override feature includes a restraining means for preventing further movement of the rotating means.
  • the safe mode position includes rotating the attached photovoltaic panels so as to harbour most sensitive and/or fragile parts of supported panels from a danger.
  • attached panels are positions so as to create the smallest surface area in relation to the direction of the wind and/or winds gusts.
  • attached panels are inverted so as to face towards the ground.
  • the attached panels are orientated so as to lie substantially perpendicular to the ground.
  • at least two vertical supports support the device.
  • a first vertical support engages with the rotating means and an at least second vertical support rotatably receives and supports a portion of the elongate member.
  • the engagement means consists of a reversibly-securable attachment means allowing free rotation of the elongate member along its long axis.
  • this attachment means consists of a bearing assembly.
  • this bearing assembly is in the form of a cradle whose lower bearing surface is attached to the terminal end of the vertical support.
  • the elongate member includes one or more components in order to facilitate the attachment and removal of the elongate member to the vertical supports.
  • this component is in the form of reversibly attachable sleeves located at the terminal ends of each vertical support.
  • a plurality of solar tracking arrays to be in electronic communication with one another.
  • a plurality of solar tracking arrays to be mechanically connected to each other.
  • Figure 1 is a perspective view of the solar tracking array of the invention with multiple photovoltaic panels attached to the elongate member;
  • Figure 2 is a side on view of the solar tracking array with a photovoltaic panel in the horizontal position
  • Figure 3 is a side on view showing the rotating means with a photovoltaic panel in the horizontal position
  • Figure 4 is a side on view showing the rotating means with a photovoltaic panel rotated at an angle
  • Figure 5 is a perspective view of the solar tracking array with both a rotating means and a pivoting means
  • Figure 6 is a side on view of the solar tracking array with both a rotating means and a pivoting means with the photovoltaic panels in the horizontal position;
  • Figure 7 is a side on view of the solar tracking array with both a rotating means and a pivoting means with the photovoltaic panels in a pivoted position;
  • Figure 8 is a magnified and side on view of the pivoting means with the photovoltaic panels in a horizontal position; and Figure 9 is a magnified and side on view of the pivoting means with the photovoltaic panels in a pivoted position.
  • a solar tracking array 10 is shown.
  • a plurality of photovoltaic panels (12) can be seen supported by the solar tracking array (10).
  • Any number of photovoltaic panels (12) can be supported along a length of the solar tracking array (10) by photovoltaic panel support frames (14) attached to the elongate member (16).
  • the number of photovoltaic support frames (14) that can be ably supported will depend on a number of factors, largely determined by the required torque needed to rotate and maintain the degree of rotation of the photovoltaic panels (12) at any given time.
  • the solar tracking array (10) has been arranged such that the elongate member (16) is aligned in a substantially North/South direction with an axis running along a length of the elongate member (16) being defined as the X axis. It is preferable for the X axis to be arranged such that it lies substantially horizontal with respect to the terrain.
  • the elongate member (16) can be rotated about the X axis and, when rotated, all joined or supported structures rotate with the elongate member (16) to rotate from East to West and vice versa.
  • the solar tracking array (10) includes a rotating means (18) to, amongst other things, cause such rotation to occur and vertical support shafts (20).
  • the facilitation of such rotation can be achieved in a number of ways including by way of bearings or other means, but is achieved in this embodiment by the use of ball bearing assemblies, with the bearing being capable of rotating even where sections of the elongate member are not in perfect alignment.
  • a cradle assembly (62) is located at the terminal ends of the vertical support shafts (20) to facilitate such rotating action.
  • the rotating means (18) consists of an actuator (22) attached to the elongate member (16) and a drive assembly (24).
  • the actuator (22) includes a nut (26) capable of pivoting in order to align with the long axis of the drive assembly.
  • the drive assembly (24) is pivotally attached to the vertical support shaft (20), and includes a screw (28) to which the nut (26) is threaded.
  • the drive assembly (24) rotates the screw (28), driving the nut (26) along the long axis of the drive assembly (24).
  • the assembly pivots about the attachment point in order to maintain a constant distance between the actuator (22) and the portion of the drive assembly to which the actuator (22) is attached. In this embodiment, this point is where the nut (26) is currently attached to the screw (28).
  • this overall rotation about the X axis when the elongate member (16) is arranged in a North/South configuration, allows for an East to West tracking of the sun by the photovoltaic panel support frames (14) and any photovoltaic panels (12) attached thereto from the sun's rising position to setting position.
  • the rotating motion of the elongate member (16) is preferentially facilitated (as mentioned herein above) by a cradle assembly (62) attached to the terminal end of a vertical support shaft (20).
  • a further embodiment of the solar tracking array (38) includes a pivoting means (40).
  • the pivoting means (40) allows the photovoltaic panel support frames (14) to pitch and in so doing track the sun from the horizon to its zenith and back to the horizon again.
  • a workable arrangement for the pivoting means (40) is shown.
  • a secondary drive assembly (42) is attached to the rotating means (18).
  • the second drive assembly (42) is substantially similar to the drive assembly (28) which effects the rotation of the elongate member (16) and is connected to a lever (44) by means of an secondary actuator (46).
  • Attached to a distal end of the lever (44) is a rigid rod (48).
  • the rigid rod (48) mechanically connects the pivoting means (40) to a plurality of photovoltaic panel support frames (14).
  • the rigid rod (48) can pull an end of a mechanically connected photovoltaic panel support frame (14) toward from the pivoting means, causing the photovoltaic panel support frame (14) to pivot about independent Y axes. Such a pulling action can cause the photovoltaic panel support frame (14) to pivot from a substantially horizontal position (as seen in Figure 8) to an inclined angle (as seen in Figure 9). Conversely, if the direction of rotation of the second drive assembly (42) and lever (44) is reversed, the rigid rod (48) pushes a mechanically connected photovoltaic panel support frame (14) back toward a substantially horizontal position (as shown in Figure 8). Such arrangement also allows for the photovoltaic panel support frame (14) to pivot past the horizontal position such that the photovoltaic panel support frame (14) inclines towards the other direction (not shown).
  • multiple photovoltaic panel support frames (14) can be connected to the rigid rod (48). In doing so, multiple photovoltaic panel support frames (14) can be pivoted simultaneously using only one pivoting means (40). In such instances the secondary actuator (46) or electrical motor (not shown) connected to the secondary drive assembly (42) will be dependent on the required torque and/or power required to maintain the photovoltaic panel support frames (14) at the desired inclination.
  • pivoting means (40) In an arrangement as described above using a lever (44), rigid rod (48) and screw drive assembly (42), it is required that the pivoting means (40) remains aligned with the XY plane as this XY plane rotates about the X axis. In other words, the pivoting means (40) rotates at the same rate and the same degree as the photovoltaic panel support frames (14).
  • a power supply unit (not shown) to power the solar tracking array (10) and the further embodiment of the solar tracking array (38).
  • This power supply (not shown) is connected to the rotating means (18) and/or the pivoting means (40).
  • the solar tracking array (10 and/or 38) could be powered by other means, but a preferred scenario is that the battery (not shown) be placed in electrical communication with another photovoltaic panel (not shown) to power the solar tracking array (10 and/or 38) and/or charge the battery (not shown).
  • Such photovoltaic panel could be those forming part of the solar tracking array (10 and/or 38) or an independent photovoltaic panel (not shown).
  • a processor (not shown) forming part of the rotating assembly (24) makes the relevant astronomic calculations of the exact position of the sun based on the current time and date, depending on the geographical position of the solar tracking array (10 and/or 38). Alternatively, such calculation can be done at a remote location and transmitted to the drive assembly (24) for action.
  • An important advantage of the present invention is that the solar tracking array (10 and/or 38) is able to orientate photovoltaic panels (12) so as to maximize solar radiation capture. The ability to track the path of the sun from East to West and/or from its rising position to its zenith improves the overall efficiency of the solar tracking array (10 and/or 38).
  • the computation of the sun's position is dependent on a number of factors, including the date, time, geographical location and relief of the terrain on which the solar tracking array (10 and/or 38) is installed. It is possible that data relating to these factors can be entered in directly into the processor (not shown) at the time of installation of the solar tracking array (10 and/or 38) so that the solar tracking array (10 and/or 38) can operate independently. However, it is also possible that such processor (not shown) can be in communication with a remote computer (not shown) to receive instructions. In this regard, the most preferred means would be for the processor (not shown) to be in wireless communication with the remote computer (not shown).
  • the solar tracking array (10 and/or 38) would require a transmitter and receiver (not shown) in communication with the processor (not shown).
  • the transmitter and receiver would allow for the solar tracking array (10 and/or 38) to remain in communication with a remote computer (not shown) or remote device. Such communication would allow an operator to control the solar tracking array (10 and/or 38) from a remote location.
  • a further aspect of the invention relates to the protection of the solar tracking array (10 and/or 38) in instances where there is a danger of damage to the solar tracking array (10 and/or 38).
  • Foreseeable dangers emanating from nature include excessive wind speeds, hail and snow or a combination of these.
  • the solar tracking array (10 and/or 38) can include instrumentation to determine the current local weather conditions.
  • instrumentation could include an anemometer to determine local wind speeds (gusts and sustained speeds), barometer, to determine air pressure, thermometer etc. such instruments will need to be in communication with the processor (not shown) or with the remote computer.
  • the solar tracking array (10 and/or 38) should ideally automatically orientate the photovoltaic panel support frames (14) to an appropriate safe position.

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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

La présente invention concerne un réseau de poursuite solaire (10) comprenant au moins un cadre de support (14) de panneau photovoltaïque fixé à un élément allongé (16), au moins un arbre de support vertical (20) pour supporter en pivotement l'élément allongé (16), l'élément allongé (16) étant supporté par l'arbre de support (20) de façon sensiblement parallèle au sol, l'élément allongé (16) étant entraîné en rotation le long de son axe par un moyen de rotation (18), le moyen de rotation (18) étant constitué d'un actionneur (22) fixé sur l'élément allongé (16) et d'un ensemble d'entraînement (24) fixé à l'actionneur (22) et à l'arbre de support vertical (20), l'ensemble d'entraînement (24) étant fixé en pivotement à l'arbre de support vertical (20), de sorte que l'ensemble d'entraînement (24) puisse pivoter autour d'un axe sensiblement parallèle à l'axe de rotation de l'élément allongé (16), une partie de l'actionneur (22) étant déplacée le long de l'axe long de l'ensemble d'entraînement (24) et l'ensemble d'entraînement (24) pivotant à mesure que l'actionneur (22) se déplace le long de son axe long afin de fournir une distance constante entre l'actionneur (22) et la partie de l'ensemble d'entraînement (24) sur laquelle l'actionneur (22) est fixé.
PCT/IB2016/055687 2015-09-23 2016-09-23 Réseau de poursuite solaire WO2017051360A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA2018/02690A ZA201802690B (en) 2015-09-23 2018-04-23 A solar tracking array

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA201507083 2015-09-23
ZA2015/07083 2015-09-23

Publications (1)

Publication Number Publication Date
WO2017051360A1 true WO2017051360A1 (fr) 2017-03-30

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WO (1) WO2017051360A1 (fr)
ZA (1) ZA201802690B (fr)

Cited By (4)

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CN107166787A (zh) * 2017-07-18 2017-09-15 江苏启能新能源材料有限公司 角度可调的挂壁式无水箱太阳能热水器
CN111180548A (zh) * 2019-12-24 2020-05-19 浙江宏阳新能源科技有限公司 一种高效的半片电池组及其制备工艺
IT201900015156A1 (it) * 2019-08-28 2021-02-28 Fausto Guglielmo Inseguitore solare a doppio grado di libertà generato simultaneamente da un solo attuatore
US11843348B2 (en) 2021-01-14 2023-12-12 Maxun Solar Inc. Dual axis solar array tracker

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CN102968127A (zh) 2012-11-13 2013-03-13 四川钟顺太阳能开发有限公司 一种直线驱动装置及其用于太阳能跟踪的控制及使用方法
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IT201900015156A1 (it) * 2019-08-28 2021-02-28 Fausto Guglielmo Inseguitore solare a doppio grado di libertà generato simultaneamente da un solo attuatore
CN111180548A (zh) * 2019-12-24 2020-05-19 浙江宏阳新能源科技有限公司 一种高效的半片电池组及其制备工艺
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