Wind and solar integrated photovoltaic tracking system

Abstract

The present invention provides a wind-solar integrated photovoltaic tracking system, comprising a first column, a plurality of second columns, a rotor, a driving mechanism, a torque clutch mechanism and a wind power conversion mechanism: the rotor is movably connected to a plurality of parallel second columns for support, and one end is movably connected to the top of the first column for rotational movement; the driving mechanism is arranged at the top of the first column, and has at least one power output end, the rotor runs through the power output end of the driving mechanism, and can coaxially rotate and move with the power output end of the driving mechanism to obtain the torsional force provided by the driving mechanism; the torque clutch mechanism is connected between the rotor and the power output end of the driving mechanism, so as to cut off the torsional force transmission after the rotor wind load reaches a predetermined value so that the rotor rotates with the wind; the wind power conversion mechanism is connected to the rotor, and can convert kinetic energy into electrical energy when the rotor rotates with the wind. The system effectively realizes the utilization of wind energy by the photovoltaic tracker, and reduces the power generation cost while improving the power generation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic tracking, and in particular to a wind-solar integrated photovoltaic tracking system. Background Art

[0002] With the development of clean energy, photovoltaic modules have been used more and more. As the core component for converting solar energy into electrical energy, the installation and placement of photovoltaic modules is very important. In photovoltaic power generation systems, in order to improve the photoelectric conversion capacity, photovoltaic modules are generally placed on the support mechanism facing the sunlight. Since the power generation efficiency of photovoltaic power generation is greatly affected by the angle of sunlight, moving the direction of the solar panel with the angle of sunlight can effectively improve the photoelectric conversion efficiency of the solar panel.

[0003] Photovoltaic tracking system is one of the powerful methods to improve power generation efficiency and increase investment returns. At present, in the photovoltaic industry at home and abroad, the traditional fixed installation component form is gradually being eliminated due to backward technology and serious waste of resources, while large power stations are being upgraded or built into photovoltaic systems that can track the angle of sunlight incidence. The construction of solar tracking photovoltaic systems is a general trend and the market demand is strong. However, in order to ensure stable operation under strong wind conditions, the existing photovoltaic tracking system has high requirements for the columns and driving mechanisms, which makes the production cost of photovoltaic trackers high; at the same time, the existing photovoltaic tracking system cannot effectively utilize wind energy and can only enter the wind avoidance mode under strong wind conditions to avoid damage. Summary of the invention

[0004] The present invention provides a wind-solar integrated photovoltaic tracking system for effectively utilizing wind energy, improving power generation efficiency and reducing power generation costs. The wind-solar integrated photovoltaic tracking system comprises a first column, a plurality of second columns, a rotor, a driving mechanism, a torque clutch mechanism and a wind power conversion mechanism, wherein:

[0005] A plurality of the second columns are arranged in sequence parallel to the first column; the rotor is movably connected to the plurality of the second columns for support, and one end of the rotor is movably connected to the top end of the first column for rotational movement;

[0006] The driving mechanism is arranged at the top of the first column and has at least one power output end. The rotor runs through the power output end of the driving mechanism and can coaxially rotate and move with the power output end of the driving mechanism to obtain the torsional force provided by the driving mechanism. The torque clutch mechanism is coaxially connected between the rotor and the power output end of the driving mechanism to cut off the torsional force transmission after the wind load of the rotor reaches a predetermined value so that the rotor rotates with the wind.

[0007] The wind power conversion mechanism is connected to the rotor and can convert kinetic energy into electrical energy when the rotor rotates with the wind.

[0008] In a specific implementation, the wind power conversion mechanism includes a large pulley, a small pulley, a transmission component and a generator, wherein:

[0009] The large pulley is coaxially connected between the rotor and the torque clutch and can rotate and move with the rotor. The small pulley is connected to the large pulley through the transmission component and can rotate and move with the large pulley. The power input end of the generator is coaxially connected to the small pulley and can rotate and move with the small pulley to obtain torsional force.

[0010] In a specific implementation, the transmission component is an annular transmission belt, and the annular transmission belt is tightly sleeved on the outside of the large pulley and the small pulley to transmit the torsional force.

[0011] In a specific implementation, the generator and the small pulley are axially arranged below the large pulley along the first column, and the generator is fixedly connected to the side wall of the first column through a mounting seat.

[0012] In a specific implementation, the torque clutch mechanism is a ball-type torque clutch.

[0013] In a specific implementation, the rotor includes a photovoltaic module, a main beam and a connecting rod, wherein:

[0014] The photovoltaic assembly is arranged on the top of the main beam, and the two ends of the main beam are respectively vertically connected to a connecting rod: the outer side of one connecting rod is fixedly connected to the large pulley, and the outer side of the other connecting rod is movably connected to the second column.

[0015] In a specific implementation, the rotor includes two main beams arranged in parallel, and each of the main beams has a plurality of photovoltaic components arranged in sequence.

[0016] In a specific implementation, the large pulley is connected to the connecting rod through a torsion plate and a spline shaft, wherein:

[0017] The torsion plate is fixedly connected to the outer side of one of the connecting rods, and the large pulley is fixedly connected to the torsion plate through the spline shaft.

[0018] In a specific implementation, the photovoltaic component is fixedly connected to the top of the main beam through a component connector and a pressing block.

[0019] In a specific implementation, the component connector has a notch in the middle that matches the main beam, and is vertically straddled on the top of the main beam through the notch; the component connector has a Z-shaped cross-section, with a top plate and a bottom plate that vertically protrude from the body, and the component connector is fixedly connected to the main beam through a pad and U-shaped bolts arranged between the bottom plate and the main beam.

[0020] In a specific implementation, there may be a variety of implementation schemes for setting up the driving mechanism. For example, the driving mechanism may include a driving motor and a reducer.

[0021] In a specific implementation, in order to improve the overall power generation capacity of the system and reduce production costs and floor space, the wind-solar integrated photovoltaic tracking system may include two rotors, and the driving mechanism may have two power output ends, wherein:

[0022] The two power output ends are arranged in back-to-back relation and can rotate and move coaxially. The two rotors are arranged opposite to each other on both sides of the first column and respectively penetrate one of the power output ends.

[0023] The wind-solar integrated photovoltaic tracking system provided by the present invention comprises a first column, a second column, a rotor, a driving mechanism, a torque clutch mechanism and a wind power conversion mechanism, wherein the rotor is arranged between the first column and the second column, and both ends are movably connected to the top of the first column and the second column respectively and can rotate and move; the driving mechanism is arranged at the top of the first column, and the rotor passes through the power output end of the driving mechanism and can rotate and move coaxially with the power output end; the torque clutch mechanism is arranged between the driving mechanism and the rotor to cut off the torsional force transmission between the driving mechanism and the rotor after the wind load of the rotor reaches a predetermined value, so that the rotor rotates with the wind; the wind power conversion mechanism is connected to the rotor and can rotate and move with the rotor to convert kinetic energy into electrical energy. The wind-solar integrated photovoltaic tracking system aims at the defects of the existing photovoltaic trackers, such as high cost, low reliability and energy waste under strong wind conditions. It creatively proposes a photovoltaic tracking structure with wind power generation function. When the wind load exceeds the preset value, the freedom of the rotor rotation is released, the column no longer bears the wind load, the rotor rotates freely with the wind, and the column only needs to bear a small centrifugal force, which greatly improves the structural reliability and reduces the column cost; the free rotation of the rotor drives the wind power conversion mechanism to generate electricity, which can convert wind energy in strong winds into electrical energy, increase the overall power generation, and thus greatly increase the power generation income under the same land area, thereby effectively reducing the power generation cost. The use of the torque clutch mechanism can effectively achieve timely response to the wind load. When the wind load does not exceed the preset value, the drive mechanism and the rotor are connected as a whole to track the rotation of the sun. If it exceeds the preset value, the connection between the drive mechanism and the rotor is cut off. At this time, the drive mechanism does not need to bear the holding torque, thus greatly reducing the cost of the drive mechanism. The system effectively realizes the comprehensive utilization of wind energy and light energy by the photovoltaic tracker, greatly reducing the power generation cost while improving the power generation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the specific implementation or the prior art description. Obviously, the drawings in the following description are only some specific implementations of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0025] Figure 1 It is a structural schematic diagram of a wind-solar integrated photovoltaic tracking system according to a specific embodiment of the present invention;

[0026] Figure 2 is a side view of a wind-solar integrated photovoltaic tracking system according to a specific embodiment of the present invention;

[0027] Figure 3 It is a schematic diagram of the partial structure of a wind-solar integrated photovoltaic tracking system according to a specific embodiment of the present invention;

[0028] Figure 4 is a structural schematic diagram of a torque clutch mechanism according to a specific embodiment of the present invention;

[0029] Figure 5 It is a schematic structural diagram of a driving mechanism according to a specific embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the specific implementation of the present invention more clear, the specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings. Here, the schematic specific implementation of the present invention and its description are used to explain the present invention, but are not intended to limit the present invention.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the present invention provides a wind-solar integrated photovoltaic tracking system for effectively utilizing wind energy, improving power generation efficiency and reducing power generation costs. The wind-solar integrated photovoltaic tracking system includes a first column 100, a plurality of second columns 200, a rotor 300, a driving mechanism 400, a torque clutch mechanism 500 and a wind power conversion mechanism 600, wherein:

[0032] A plurality of the second columns 200 are arranged in sequence parallel to the first columns 100; the rotor 300 is movably connected to the plurality of the second columns 200 for support, and one end of the rotor 300 is movably connected to the top of the first column 100 for rotational movement;

[0033] The driving mechanism 400 is disposed at the top of the first column 100 and has at least one power output end 410. The rotor 300 passes through the power output end 410 of the driving mechanism 400 and can coaxially rotate and move with the power output end 410 of the driving mechanism 400 to obtain the torsional force provided by the driving mechanism 400. The torque clutch mechanism 500 is coaxially connected between the rotor 300 and the power output end 410 of the driving mechanism 400 to cut off the torsional force transmission after the wind load of the rotor 300 reaches a predetermined value so that the rotor 300 rotates with the wind.

[0034] The wind power conversion mechanism 600 is connected to the rotor 300 and can convert kinetic energy into electrical energy when the rotor 300 rotates with the wind.

[0035] In a specific implementation, the rotor 300 is disposed on the top of each of the second columns 200 , and can rotate one circle without interfering with each of the second columns 200 .

[0036] In the specific implementation, the photovoltaic tracker rotor 300 is a whole, not a multi-section type. This makes it easier to reset and restart the control system. If the rotor 300 is a multi-section type, the angle of each section of the component is different when producing wind power. When the wind force drops below the limit, the component cannot be adjusted to a uniform angle, and tracking the sun becomes meaningless.

[0037] In a specific implementation, in order to alleviate the torsional impact load between the driving mechanism and the rotor under unstable working conditions, the wind-solar integrated photovoltaic tracking system may also include a torque damping device, thereby effectively improving the working stability of the system.

[0038] In a specific implementation, in order to improve the working stability of the system, the rotor 300 may also be provided with an eccentric torque device.

[0039] In a specific implementation, there are multiple implementations for connecting the driving mechanism 400 and the torque clutch mechanism 500. For example, the driving mechanism 400 and the torque clutch mechanism 500 can be connected by flanges and fixed by bolts, thereby effectively improving the connection stability.

[0040] In specific implementation, there are many implementation schemes for the arrangement of the wind power conversion mechanism 600. For example, Figure 2 , Figure 3As shown, the wind power conversion mechanism 600 may include a large pulley 610, a small pulley 620, a transmission component 630 and a generator 640, wherein: the large pulley 610 may be coaxially connected between the rotor 300 and the torque clutch, and may rotate and move with the rotor 300, the small pulley 620 may be connected to the large pulley 610 through the transmission component 630 and may rotate and move with the large pulley 610, and the power input end of the generator 640 may be coaxially connected to the small pulley 620 and may rotate and move with the small pulley 620 to obtain torsional force. Furthermore, the transmission method between the large pulley 610 and the small pulley 620 may have multiple implementation schemes when being set, for example, Figure 2 , Figure 3 As shown, in order to ensure transmission efficiency and improve working stability, the transmission component 630 can be an annular transmission belt, which is tightly sleeved on the outside of the large pulley 610 and the small pulley 620 to transmit torsional force. For another example, the large pulley 610 and the small pulley 620 can also be gear structures and meshedly connected, thereby reducing energy loss in transmission.

[0041] In a specific implementation, there are many embodiments for setting the generator 640 and the small pulley 620. For example, Figure 2 , Figure 3 As shown, the generator 640 and the small pulley 620 can be arranged below the large pulley 610 along the axial direction of the first column 100, and the generator 640 can be fixedly connected to the side wall of the first column 100 through a mounting seat 641. The mounting seat 641 can be L-shaped, with one side being closely connected to the side wall of the first column 100 and the other side being connected to the generator 640 by bolts.

[0042] In specific implementation, there are many implementation schemes for selecting the torque clutch mechanism 500. For example, since a ball-type torque clutch has many advantages such as short response time, high sensitivity, and no residual torsional force after disengagement, the torque clutch mechanism 500 can be a ball-type torque clutch.

[0043] In a specific implementation, the rotor 300 may be arranged in a variety of embodiments. Figure 1 , Figure 2 and Figure 3As shown, the rotor 300 may include a photovoltaic assembly 310, a main beam 320 and a connecting rod 330, wherein: the photovoltaic assembly 310 may be arranged on the top of the main beam 320, and the two ends of the main beam 320 are respectively vertically connected to a connecting rod 330: the outer side of one connecting rod 330 is fixedly connected to the large pulley 610, and the outer side of the other connecting rod 330 is movably connected to the second column 200. Further, in order to increase the installed capacity of each rotor 300, the rotor 300 may include two parallel main beams 320, and each main beam 320 has a plurality of photovoltaic assemblies 310 arranged in sequence.

[0044] In a specific implementation, there are many embodiments for connecting the large pulley 610 and the connecting rod 330. For example, Figure 3 As shown, in order to ensure a firm connection and stable operation under strong wind conditions, the large pulley 610 can be connected to the connecting rod 330 through a torsion plate 611 and a spline shaft, wherein: the torsion plate 611 is fixedly fitted and connected to the outer side of the connecting rod 330, and the large pulley 610 is fixedly connected to the torsion plate 611 through the spline shaft.

[0045] In a specific implementation, there are many embodiments for connecting the main beam 320 and the connecting rod 330. For example, Figure 3 As shown, the main beam 320 can be connected to the connecting rod 330 by U-bolts, thereby effectively ensuring the stability of the connection.

[0046] In a specific implementation, there are many embodiments for connecting the photovoltaic module 310 and the main beam 320. For example, Figure 3 As shown, the photovoltaic module 310 can be fixedly connected to the top of the main beam 320 through the module connector 311 and the pressing block 322. When installing the photovoltaic module 310, the photovoltaic module 310 needs to be first placed on the module connector 311, and then the photovoltaic module 310 is pressed and fixed on the module connector 311 through the pressing block 322, and finally the pressing block 322 is fixed by bolts, thereby effectively fixing the photovoltaic module 310.

[0047] In a specific implementation, there are multiple implementations for connecting the component connector 311 with the main beam 320. For example, the component connector 311 has a notch in the middle that fits the main beam, and is vertically straddled on the top of the main beam 320 through the notch; the component connector 311 has a Z-shaped cross section, with a top plate and a bottom plate that vertically protrude from the body, and the component connector 311 is fixedly connected to the main beam 320 through a pad and U-shaped bolts disposed between the bottom plate and the main beam.

[0048] In a specific implementation, there may be a variety of implementation schemes for the configuration of the driving mechanism 400. For example, the driving mechanism 400 may include a driving motor and a reducer.

[0049] In specific implementation, Figure 1 , Figure 2 and Figure 3 As shown, in order to improve the overall power generation capacity of the system and reduce production costs and floor space, the wind-solar integrated photovoltaic tracking system may include two rotors 300, and the driving mechanism 400 may have two power output ends 410, wherein: the two power output ends 410 are arranged back to back and can rotate and move coaxially, and the two rotors 300 are arranged opposite to each other on both sides of the first column 100, and respectively penetrate one of the power output ends 410.

[0050] In summary, the wind-solar integrated photovoltaic tracking system provided by the present invention includes a first column 100, a second column 200, a rotor 300, a driving mechanism 400, a torque clutch mechanism 500 and a wind power conversion mechanism 600. The rotor 300 is arranged between the first column 100 and the second column 200, and both ends are movably connected to the top of the first column 100 and the second column 200 respectively and can rotate and move; the driving mechanism 400 is arranged at the top of the first column 100, and the rotor 300 passes through the power output end 410 of the driving mechanism 400 and can rotate and move coaxially with the power output end 410; the torque clutch mechanism 500 is arranged between the driving mechanism 400 and the rotor 300 to cut off the torsional force transmission between the driving mechanism 400 and the rotor 300 after the wind load of the rotor 300 reaches a predetermined value, so that the rotor 300 rotates with the wind; the wind power conversion mechanism 600 is connected to the rotor 300, and can rotate and move with the rotor 300 to convert kinetic energy into electrical energy. The wind-solar integrated photovoltaic tracking system aims at the defects of the existing photovoltaic trackers, such as high cost, low reliability and energy waste under strong wind conditions, and creatively proposes a photovoltaic tracking structure with wind power generation function. When the wind load exceeds the predetermined value, the rotational freedom of the rotor 300 is released, the column no longer bears the wind load, the rotor 300 rotates freely with the wind, and the column only needs to bear a small centrifugal force, which greatly improves the structural reliability and reduces the column cost; the free rotation of the rotor 300 drives the wind power conversion mechanism 600 to generate electricity, which can convert wind energy in strong winds into electrical energy, increase the overall power generation, and thus greatly increase the power generation income under the same land area, thereby effectively reducing the power generation cost. The use of the torque clutch mechanism 500 can effectively achieve timely response to the wind load. When the wind load does not exceed the predetermined value, the drive mechanism 400 and the rotor 300 are connected as a whole to track the rotation of the sun. When it exceeds the predetermined value, the connection between the drive mechanism 400 and the rotor 300 is cut off. At this time, the drive mechanism 400 does not need to bear the holding torque, thus greatly reducing the cost of the drive mechanism 400. The system effectively realizes the comprehensive utilization of wind energy and light energy by photovoltaic trackers, greatly reducing the cost of power generation while improving power generation efficiency.

[0051] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wind-solar integrated photovoltaic tracking system, the wind-solar integrated photovoltaic tracking system comprising a first column (100), a plurality of second columns (200), a rotor (300), a driving mechanism (400), a torque clutch mechanism (500) and a wind power conversion mechanism (600), wherein: A plurality of the second columns (200) are arranged in sequence parallel to the first column (100); the rotor (300) is movably connected to the plurality of the second columns (200) for support, and one end of the rotor is movably connected to the top end of the first column (100) for rotational movement; The driving mechanism (400) is arranged at the top end of the first column (100) and has at least one power output end (410); the rotor (300) penetrates the power output end (410) of the driving mechanism (400) and can coaxially rotate and move with the power output end (410) of the driving mechanism (400) to obtain the torsional force provided by the driving mechanism (400); The torque clutch mechanism (500) is coaxially connected between the rotor (300) and the power output end (410) of the driving mechanism (400) to cut off the torsional force transmission after the wind load of the rotor (300) reaches a predetermined value so that the rotor (300) rotates with the wind; The wind power conversion mechanism (600) is connected to the rotor (300) and can convert kinetic energy into electrical energy when the rotor (300) rotates with the wind; The wind power conversion mechanism (600) comprises a large pulley (610), a small pulley (620), a transmission component (630) and a generator (640), wherein: The large pulley (610) is coaxially connected between the rotor (300) and the torque clutch mechanism (500) and can rotate and move with the rotor (300); the small pulley (620) is connected to the large pulley (610) through the transmission component (630) and can rotate and move with the large pulley (610); the power input end of the generator (640) is coaxially connected to the small pulley (620) and can rotate and move with the small pulley (620) to obtain a torsional force; The torque clutch mechanism (500) is a ball-type torque clutch.

2. The wind-solar integrated photovoltaic tracking system according to claim 1, wherein: The transmission component (630) is an annular transmission belt, and the annular transmission belt is tightly sleeved on the outside of the large pulley (610) and the small pulley (620) to transmit torsional force.

3. The wind-solar integrated photovoltaic tracking system according to claim 1, wherein: The generator (640) and the small pulley (620) are axially arranged below the large pulley (610) along the first column (100), and the generator (640) is fixedly connected to the side wall of the first column (100) via a mounting seat (641).

4. The wind-solar integrated photovoltaic tracking system according to claim 1, wherein the rotor (300) comprises a photovoltaic module (310), a main beam (320) and a connecting rod (330), wherein: The photovoltaic assembly (310) is arranged on the top of the main beam (320), and the two ends of the main beam (320) are respectively vertically connected to a connecting rod (330): the outer side of one connecting rod (330) is fixedly connected to the large pulley (610), and the outer side of the other connecting rod (330) is movably connected to the second column (200).

5. The wind-solar integrated photovoltaic tracking system according to claim 4, wherein: The rotor (300) comprises two main beams (320) arranged in parallel, and each main beam (320) has a plurality of photovoltaic components (310) arranged in sequence.

6. The wind-solar integrated photovoltaic tracking system according to claim 4, wherein: The large pulley (610) is connected to the connecting rod (330) via a torsion plate (611) and a spline shaft, wherein: The torsion plate (611) is fixedly connected to the outer side of one of the connecting rods (330), and the large pulley (610) is fixedly connected to the torsion plate (611) via the spline shaft.

7. The wind-solar integrated photovoltaic tracking system according to claim 4, wherein: The photovoltaic component (310) is fixedly connected to the top of the main beam (320) via a component connector (311) and a pressing block (322).

8. The wind-solar integrated photovoltaic tracking system according to claim 7, wherein: The component connecting piece (311) has a notch in the middle thereof that matches the main beam, and is vertically straddled on the top of the main beam (320) through the notch; the component connecting piece (311) has a Z-shaped cross section, and has a top plate and a bottom plate that vertically protrude from the main body; the component connecting piece (311) is fixedly connected to the main beam (320) through a pad and U-shaped bolts that are arranged between the bottom plate and the main beam.

9. The wind-solar integrated photovoltaic tracking system according to claim 1, wherein: The driving mechanism (400) comprises a driving motor and a reducer.

10. The wind-solar integrated photovoltaic tracking system according to claim 1, wherein the wind-solar integrated photovoltaic tracking system comprises two rotors (300), the driving mechanism (400) has two power output ends (410), wherein: The two power output ends (410) are arranged in opposite directions and can rotate and move coaxially. The two rotors (300) are arranged opposite to each other on both sides of the first column (100) and respectively penetrate one of the power output ends (410).

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