Swing wind-resistant stable power generation agriculture and light complementary system

Abstract

The invention provides a swing wind-resistant stable power generation agriculture and light complementary system. The system comprises a stand column, a cross beam, a photovoltaic support and a photovoltaic panel which are erected in a farmland. The photovoltaic panel is provided with a buffer mechanism and an overload release device, the buffer mechanism can effectively absorb kinetic energy through the elasticity of the buffer mechanism and slow down the swing amplitude and speed of the photovoltaic panel, and the photovoltaic panel can be automatically reset after strong wind; the overload release device can protect the photovoltaic panel from being damaged by strong wind impact. The technical defects of static wind resistance in the prior art are overcome, wind resistance of the system is reduced, super typhoon can be resisted, power generation and irrigation can be stabilized, and agricultural production can be promoted.

Description

Technical Field

[0001] The present application belongs to the field of agricultural-photovoltaic complementary technology, and specifically relates to a swing-resistant, wind-resistant, stable power generation agricultural-photovoltaic complementary system. Background Art

[0002] The patent document "A Flexible Photovoltaic Support for Agricultural and Photovoltaic Complementarity with Stackable and Storage Modules (CN119109385B)" discloses a wind-resistant agricultural and photovoltaic hybrid solution that allows photovoltaic panels to be retracted during extreme winds and hailstorms. However, its high cost makes it difficult to implement on a large scale. Figure 1 The patented "Solar Photovoltaic Module Bracket for Fishery-Photovoltaic Complementarity (CN204498056U)" is a photovoltaic system comprising columns, beams, and photovoltaic panels. The applicant's research has revealed that the aforementioned patent and thousands of other prior art technologies share a common technical feature: the use of sturdy photovoltaic brackets to stabilize the panels and static photovoltaic panels to withstand strong winds. In short, these systems employ a static wind-resistant technology and design approach.

[0003] When the applicant investigated the implementation cases of the above-mentioned static wind-resistant technology route, he found that a photovoltaic power plant built in May 2024 in Sanjiang Town, Meilan District, Haikou City, Hainan Province, Figure 1 A 100-megawatt, 1,663-mu (approximately 1,000 mu) fishery-photovoltaic power generation demonstration project, using the technical solution shown, was completely destroyed by Typhoon Makar (Typhoon No. 11) in 2024, causing economic losses exceeding 400 million yuan. Statistics show that Makar caused losses exceeding 8 billion yuan for photovoltaic power generation projects. This demonstrates that the current static wind resistance technology, which uses stationary photovoltaic panels to withstand strong winds, faces severe challenges during super typhoons. Summary of the Invention

[0004] The purpose of this application is to provide a swinging, wind-resistant, stable power generation agricultural and photovoltaic complementary system, so that it can resist super typhoons in extraordinary times and can generate electricity and irrigate stably under normal conditions, thereby achieving the technical effect of promoting agricultural production.

[0005] In order to achieve the above-mentioned purpose of the invention, the present application proposes a swinging wind-resistant stable power generation agricultural-photovoltaic complementary system that is different from the current static wind-resistant technical route.

[0006] The present application provides a swaying, wind-resistant, stable power generation system for agriculture and photovoltaics, comprising a column erected in farmland (or on the ground), a beam disposed on the column, a photovoltaic support consisting of the column and the beam, and a photovoltaic panel mounted on the photovoltaic support, characterized in that: ① The photovoltaic panels are mounted on the photovoltaic supports via a non-fixed mounting structure. This non-fixed mounting structure allows the photovoltaic panels to swing relative to the photovoltaic supports under strong winds, thereby reducing the windward area of ​​the photovoltaic panels and expanding the wind passage, thereby reducing the impact of strong winds on the photovoltaic panels and improving the system's wind resistance (reducing system investment). ② When there is no wind or light wind (i.e., under normal conditions), the photovoltaic panels remain relatively stationary (i.e., maintain a stable state) to receive sunlight and generate electricity; ③ The photovoltaic panel is equipped with at least one buffer mechanism, which connects the swingable photovoltaic panel and the fixed photovoltaic support. The buffer mechanism includes but is not limited to a spring (buffer) mechanism or a weight (buffer) mechanism; the buffer mechanism is used to absorb kinetic energy (for example, through its elasticity), limit the swing amplitude of the photovoltaic panel (caused by wind force) and slow down the swing speed during strong winds (i.e., extraordinary times), so as to avoid damage to the photovoltaic panel due to excessive stress (caused by violent swinging), and automatically reset the photovoltaic panel (to a static normal state) after the strong wind (i.e., under normal conditions).

[0007] It should be noted that the "buffer mechanism" referred to in this application refers to a design used to mitigate or absorb the impact of wind (or other kinetic energy) on photovoltaic panels to protect the panel's structural safety and maintain its power generation. This buffer mechanism includes, but is not limited to, any of a variety of buffer mechanisms, including spring (buffer) mechanisms, elastic (buffer) mechanisms, brake (buffer) mechanisms, weight (buffer) mechanisms, and damping (buffer) mechanisms.

[0008] Existing technical data shows that when the tension generated by the wind is small, the spring remains stationary. However, when the tension exceeds a certain value (e.g., 4.13 kg or 12.26 kg), the spring begins to stretch. This specific tension value is generally referred to as the spring's critical tension or yield point. When the tension is very high, the maximum length the spring can stretch is the spring's maximum working length, L. After adopting the aforementioned "buffer mechanism" in this application, when the wind is not strong (i.e., light) and the tension generated by the wind blowing against the photovoltaic panel is less than the spring's yield point, the spring cannot be pulled, thus maintaining the photovoltaic panel's static state. However, when strong winds strike and the tension generated by the wind blowing against the photovoltaic panel exceeds the spring's yield point, the spring can be pulled, making it impossible to maintain the photovoltaic panel's static state, inevitably causing the photovoltaic panel to sway with the strong wind to buffer the wind force.

[0009] Preferably, the swing-resistant wind-resistant stable power generation agricultural-photovoltaic complementary system is characterized in that: the buffer mechanism is a spring mechanism, one end of the spring is connected to the swingable photovoltaic panel (preferably connected to the lower part of the photovoltaic panel) (for example, directly or through a lever), and the other end is connected to a fixed photovoltaic bracket (for example, connected to a stabilizing rod) to limit the swing amplitude and slow down the swing speed of the photovoltaic panel through the elastic deformation of the spring. The total yield point of the springs used for the same photovoltaic panel meets the following requirements: ≥C×D×9.25N / m², preferably ≥C×D×19.6N / m², and more preferably ≥C×D×35.7N / m², where C is the length of the photovoltaic panel and D is the width of the photovoltaic panel.

[0010] Preferably, the aforementioned swing-resistant, wind-resistant, stable power generation system for agriculture and photovoltaics is characterized in that: the buffer mechanism comprises a weight mechanism, the weight being suspended below the photovoltaic panel. In calm or light winds, the weight of the weight pulls the photovoltaic panel to maintain its stability. In strong winds, the weight of the weight limits the swing amplitude and slows the swing speed of the photovoltaic panel. The total weight of the weights used for the same photovoltaic panel satisfies the following requirements: ≥ C × D × 3 × 0.95 kg / m², preferably ≥ C × D × 3 × 2 kg / m², and more preferably ≥ C × D × 3 × 3.65 kg / m². It should be noted that, because improved technical measures such as the limiting slides to be introduced below have not yet been adopted, the total weight of the weights used must be increased by more than three times, which places higher demands on the load capacity of the photovoltaic support and is not conducive to reducing the cost of the photovoltaic support.

[0011] Preferably, the aforementioned swing-resistant, wind-resistant, stable power generation system for agriculture and photovoltaics is characterized by: the non-fixed mounting structure being a movable connection between the photovoltaic panel and the crossbeam of the photovoltaic support, including but not limited to a hinge connection, a rotating shaft connection, or a hanging connection, so that the photovoltaic panel can swing (for example, around the crossbeam) in response to strong winds; the swing angle of the photovoltaic panel is preferably limited to within 90 degrees to prevent the photovoltaic panel from spinning and severing electrical wiring. The term "non-fixed mounting" refers to the photovoltaic panel being able to swing within a certain range relative to the photovoltaic support in response to wind, rather than being completely fixed.

[0012] Preferably, the aforementioned wind-resistant, stable, and sway-resistant agricultural photovoltaic hybrid system features a spring connecting the photovoltaic panel and the photovoltaic mount via a lever structure, wherein the ratio of the lever length B to the panel width D (B / D) is ≥ 0.5. This ratio (B / D) is preferably ≥ 1, 2, 3, 4, 5, or 10, allowing for the use of inexpensive springs with a low yield point (e.g., 4.13-12.26 kg) to maintain the panel in a stationary state. Furthermore, the ratio (B / L) of the lever length B to the spring's maximum working length (L) is ≥ 1.5, 3, or 6, limiting the panel's sway amplitude to a relatively small range. Research has shown that a longer lever length (B) increases the B / D ratio, resulting in greater torque and greater stability for the photovoltaic panel. Research indicates that a lever length of 1-2 meters is optimal.

[0013] Preferably, the swinging wind-resistant stable power generation agricultural-photovoltaic complementary system is characterized in that the swinging photovoltaic panel is equipped with an overload release device connected to a (fixed) photovoltaic bracket (for example, connected to a stabilizing rod), and the overload release device is used to stabilize the photovoltaic panel (for example, by tying, clamping, braking, blocking, holding, locking, etc.) to maintain a static state when there is no wind or light wind, and is used to release the photovoltaic panel in strong winds and let the buffer mechanism limit the swing amplitude of the photovoltaic panel and slow down the swing speed.

[0014] Preferably, the swinging wind-resistant stable power generation agricultural-photovoltaic complementary system is characterized in that: the overload release device includes a limiting permanent magnet, which is used to attract the photovoltaic panel to keep it stationary through the magnetic attraction of the limiting permanent magnet when there is no wind or light wind, and is used to allow the photovoltaic panel to break free from the magnetic attraction limit by itself and let the buffer mechanism limit the swing amplitude of the photovoltaic panel and slow down the swing speed when there is strong wind; the total magnetic attraction of the limiting permanent magnets used for the same photovoltaic panel meets the following requirements: ≥C×D×9.25N / m², preferably ≥C×D×19.6N / m², and more preferably ≥C×D×35.7N / m², where C is the length of the photovoltaic panel and D is the width of the photovoltaic panel.

[0015] Preferably, the swinging wind-resistant stable power generation agricultural-photovoltaic complementary system is characterized in that: the overload release device includes a limit bolt and an electric device (such as an electromagnet or a small motor) for driving its action, which is used to lock the photovoltaic panel to keep it stationary through the limit bolt when there is no wind or light wind, and is used to drive the limit bolt to move away through the electric device when there is strong wind, so that the photovoltaic panel is disengaged from the lock (of the limit bolt) and is handed over to the buffer mechanism to limit the swing amplitude of the photovoltaic panel and slow down the swing speed.

[0016] Preferably, the swing-resistant wind-resistant stable power generation agricultural-photovoltaic complementary system is characterized in that the overload release device includes a fuse limit rope and an electric heating element, which is used to restrain the photovoltaic panel to keep it still through the fuse limit rope when there is no wind or light wind, and is used to heat the fuse limit rope through the electric heating element when there is strong wind, so that the photovoltaic panel is freed from the restraint and the buffer mechanism takes over to limit the swing amplitude of the photovoltaic panel and slow down the swing speed.

[0017] Preferably, the swing-resistant wind-resistant stable power generation agricultural-photovoltaic complementary system is characterized in that: the overload release device includes a limit overload self-breaking rope, which is used to restrain the photovoltaic panel to keep it stationary through the limit overload self-breaking rope when there is no wind or light wind, and is used to limit the swing amplitude of the photovoltaic panel and slow down the swing speed by allowing the photovoltaic panel to break the limit overload self-breaking rope by itself when there is strong wind.

[0018] Preferably, the swinging wind-resistant stable power generation agricultural-photovoltaic complementary system is characterized in that: the overload release device includes a weight (for both buffering and limiting purposes), which is used to press down (can be pressed down at this time) the photovoltaic panel to keep it still by part of the gravity of the weight when there is no wind or light wind, and is used to pull up the weight by the photovoltaic panel itself to overcome gravity (cannot be pressed down at this time) when there is strong wind, and then use the full gravity of the pulled weight to limit the swing amplitude of the photovoltaic panel and slow down the swing speed.

[0019] Preferably, the aforementioned sway-resistant, wind-resistant, and stable agricultural-photovoltaic hybrid system is characterized in that the overload release device includes a spring with a relatively high yield point. In calm or light winds, the unstretched spring is used to pull the photovoltaic panel to maintain its position. In strong winds, the photovoltaic panel itself stretches the spring (in which case it cannot pull), allowing the stretched spring to limit the panel's sway amplitude and slow its speed. The total yield point of the springs used for a single photovoltaic panel satisfies the following requirements: ≥ C × D × 9.25 N / m², preferably ≥ C × D × 19.6 N / m², and more preferably ≥ C × D × 35.7 N / m², where C is the length of the photovoltaic panel and D is the width. The spring specifications can be selected to meet different yield point requirements based on the size of the photovoltaic panel, for example, springs with (total) yield points of 4.13 kg, 5 kg, 10 kg, 15 kg, 50 kg, 122 kg, and other suitable specifications.

[0020] Research shows that strong winds (force 6 and above) with speeds exceeding 10.8 m / s can exert a wind pressure of 7.29 kg / m² (71.4 N / m²) or more on vertically mounted photovoltaic panels (perpendicular to the wind direction), with the crossbeams and stabilizers each bearing 50% of this pressure, or 35.7 N / m². Strong winds (force 5 and above) with speeds exceeding 8 m / s can exert a wind pressure of 4 kg / m² (39.2 N / m²) or more on vertically mounted photovoltaic panels (perpendicular to the wind direction), with the crossbeams and stabilizers each bearing 50% of this pressure, or 19.6 N / m². Slightly stronger winds (i.e., level 4 and above) have a wind speed of more than 5.5 m / s. The wind pressure on vertically hung photovoltaic panels (perpendicular to the wind direction) is more than 1.89 kg / m² (i.e., 18.5 N / m²). The crossbeam and stabilizer bar each bear 50% of the wind pressure, i.e., 9.25 N / m².

[0021] To ensure that the springs can stabilize the PV panel in an unstretched state even in mild wind conditions (i.e., wind speeds below level 4, 5, or 6), the spring specifications should be selected based on the following criteria: the total yield point of all springs used for a single PV panel ≥ C × D × 9.25 N / m², preferably ≥ C × D × 19.6 N / m², and most preferably ≥ C × D × 35.7 N / m², where C represents the length of the PV panel and D represents the width. Similarly, if a weight buffer mechanism or overload release device is used, the weight specifications should be selected based on the following criteria: the total weight of all weights used for a single PV panel ≥ C × D × 9.25 N / m², preferably ≥ C × D × 19.6 N / m², and most preferably ≥ C × D × 35.7 N / m², where C represents the length of the PV panel and D represents the width. Similarly, if permanent magnets are used in the overload release device, the specifications of the permanent magnets can follow the following selection criteria: the total magnetic attraction force of the permanent magnets used in the same photovoltaic panel is ≥ C×D×9.25N / m², preferably the total magnetic attraction force of the permanent magnets is ≥ C×D×19.6N / m², and most preferably the total magnetic attraction force of the permanent magnets is ≥ C×D×35.7N / m², where C represents the length of the photovoltaic panel and D represents the width of the photovoltaic panel.

[0022] Preferably, the swing-resistant wind-stable power generation and agricultural-photovoltaic complementary system is characterized in that: the overload release device includes a spring, a limiting slide (fixed on the photovoltaic support) near the photovoltaic panel frame or lever, and a (flexible or rigid) limiting pull rope passing through (including bypassing or passing through) the limiting slide (to be precise, the rigid limiting pull rope should be called a limiting pull rod, and the limiting pull rope described in this application includes a rigid limiting pull rod); the limiting pull rope on one side of the limiting slide is shorter, and the short section is connected to the photovoltaic panel, and the limiting pull rope on the other side of the limiting slide is longer, and the long section is connected to the spring; In calm or light winds (e.g., winds below force 5), the unstretched spring pulls (can hold) the photovoltaic panel to maintain its position via the limit rope. In strong winds, the photovoltaic panel stretches the spring itself (cannot hold), leaving the stretched spring to limit the panel's swing amplitude and slow its speed. The total yield point of the springs used for the same photovoltaic panel satisfies the following requirements: ≥C×D×9.25N / m², preferably ≥C×D×19.6N / m², and more preferably ≥C×D×35.7N / m², where C is the length of the photovoltaic panel and D is the width of the photovoltaic panel. The short segment length is ≤240mm, preferably ≤120mm, more preferably ≤60mm, most preferably ≤30mm, and extremely preferably ≤15mm. The limit rope on the other side of the limit slide is longer, and the long segment is preferably ≤1.414 times the length of the strut or the distance between the rods H. Because the limiting slider is very close to the photovoltaic panel and the short section of the limiting rope is very short, it is easy to stabilize the photovoltaic panel and keep it motionless in calm or light wind conditions. Research has shown that the closer the limiting slider is to the photovoltaic panel and the shorter the short section of the limiting rope, the easier it is to keep the photovoltaic panel motionless in calm or light wind conditions.

[0023] Preferably, the swinging wind-resistant stable power generation agricultural-photovoltaic complementary system is characterized in that: the overload release device includes a heavy object (for both buffering and limiting purposes), a limiting slide (fixed on the photovoltaic bracket) close to the photovoltaic panel frame or lever, and a (flexible or rigid) limiting rope passing through (including bypassing or passing through) the limiting slide (to be precise, the rigid limiting rope should be called a limiting rod, and the limiting rope described in this application includes a rigid limiting rod); the section of the limiting rope on the upper side of the limiting slide is shorter, and the short section is connected to the photovoltaic panel, and the section of the limiting rope on the lower side of the limiting slide is longer, and the long section hangs the heavy object; when there is no wind or light wind, the gravity of the heavy object pulls (can pull) the photovoltaic panel through the limiting rope. To maintain stability; in strong winds, the photovoltaic panel itself pulls the weight (which it cannot pull in this case), allowing the weight's gravity to limit the panel's swaying amplitude and slow down its swaying speed. The total weight of the weights used for the same photovoltaic panel satisfies the following requirements: ≥ C × D × 0.95 kg / m², preferably ≥ C × D × 2 kg / m², and more preferably ≥ C × D × 3.65 kg / m², where C is the length of the photovoltaic panel and D is the width of the photovoltaic panel. The length of the short segment is ≤ 240 mm, preferably ≤ 120 mm, more preferably ≤ 60 mm, most preferably ≤ 30 mm, and extremely preferably ≤ 15 mm. The limit rope on the other side of the limit slider is longer, and the long segment is preferably ≤ 1.414 times the length of the support rod or the distance H between the rods. In this way, because the limit slider is very close to the photovoltaic panel and the short segment of the limit rope is very short, the photovoltaic panel can be easily stabilized and kept motionless in calm or light wind conditions. Studies have shown that the closer the limiting slider is to the photovoltaic panel and the shorter the short section of the limiting rope is, the easier it is to keep the photovoltaic panel motionless when there is no wind or low wind force.

[0024] The above-mentioned limiting (stabilization) design, which uses a limiting slide to separate the limiting rope into two long and short sections, is very easy to stabilize the photovoltaic panel and keep it motionless in the absence of wind or with low wind speeds because the limiting slide is very close to the photovoltaic panel, the short section of the limiting rope is very short, and the swing amplitude of the photovoltaic panel is severely limited. Research shows that the closer the limiting slide is to the photovoltaic panel, the shorter the short section of the limiting rope is, and the greater the swing amplitude of the photovoltaic panel is limited, the easier it is to keep the photovoltaic panel motionless in the absence of wind or with low wind speeds; conversely, Figure 20 and Figure 21 In the solution where the limit rope without the limit slider is not divided into two sections, the swing amplitude of the photovoltaic panel is limited to a small extent, so even a small wind force cannot make the photovoltaic panel move. It should be noted that because of the improved technical measures such as the limit slider, the weight of the heavy object can be very small, which reduces the load on the photovoltaic bracket and helps reduce the cost of the photovoltaic bracket.

[0025] Preferably, the swinging, wind-resistant, stable power generation, agricultural-photovoltaic complementary system is characterized in that: the crossbeam is a load-bearing cable, the photovoltaic bracket also includes a stabilizing cable, and the photovoltaic panels with a bifaciality rate of ≥80% are vertically hung on the load-bearing cable, and maintain a static state with one side facing east and the other facing west; each photovoltaic panel is an independent and separated structure, without linkage connection, and can swing independently with strong winds.

[0026] Preferably, the swinging wind-resistant stable power generation agricultural-photovoltaic complementary system is characterized in that the columns, beams, photovoltaic panels, buffer mechanisms and overload release devices together constitute a photovoltaic stand structure.

[0027] Preferably, the swinging wind-resistant stable power generation agricultural-photovoltaic complementary system is characterized in that: there is a certain distance K between two adjacent photovoltaic panels, and the distance K is 0.1D-1D, so that a wind channel is formed between the two adjacent photovoltaic panels; or, an irrigation water pipe is also installed on the photovoltaic bracket.

[0028] Preferably, the swinging wind-resistant stable power generation agricultural-photovoltaic complementary system is characterized in that: the short section length of the limiting rope is ≤240mm, preferably ≤120mm, more preferably ≤60mm, further preferably ≤30mm, and extremely preferably ≤15mm; and / or, the long section length of the limiting rope is ≤1.41H, wherein H is the spacing between adjacent rods on the photovoltaic bracket, so as to limit the swing angle of the photovoltaic panel to within 90 degrees.

[0029] The beams mentioned in this application generally refer to horizontal beams or inclined beams with a small inclination angle (for example, less than +15° at the local latitude), including ropes, steel ropes, rods, tubes, etc.

[0030] The farmland mentioned in this application generally refers to places where crops can be grown and livestock can be raised, including places where vegetables can be grown, flowers can be grown, medicinal herbs can be grown, trees can be planted, grass can be planted, and fish can be raised.

[0031] The spring mentioned in this application generally refers to an object with elasticity, including rubber bands, elastic bands, etc.

[0032] The overload release device described in this application is a commonly used protective device, which is used to automatically release when the force exceeds the set value to protect the equipment or system from damage due to excessive pressure or load. Common types include mechanical overload protectors: using a mechanical spring or lever mechanism, when the load exceeds the set value, the device will tilt or disengage, usually used in industrial machinery, conveying equipment, etc.; overload clutch: when the set torque or force exceeds the range, the clutch will disengage, thereby protecting the drive system; overload protection switch: the load is detected by electronic or mechanical means, once it exceeds the set value, the switch will cut off the circuit or trigger an alarm; hydraulic or pneumatic overload valve: in a hydraulic or pneumatic system, when the pressure exceeds the set value, the valve will open to release the pressure and protect the system components from damage. In specific implementation, these ready-made overload release devices can be selected and used according to the specific situation, and will not be described here.

[0033] The limiting slide described in this application generally refers to common components such as pulleys, slip rings, sliding holes, sliding slots, and sliding rods. It can allow the limiting rope to pass through just right and also allow the limiting rope to shuttle back and forth smoothly. Its function is to stabilize the limiting rope so that the photovoltaic panel is not easily shaken.

[0034] The limit pull rope mentioned in this application generally refers to various flexible ropes, such as steel wire ropes, steel belts, chains, nylon ropes and other flexible ropes that are wear-resistant, water-resistant, sun-resistant and durable.

[0035] Compared with the prior art, this application has the following beneficial technical effects.

[0036] First, strong wind resistance and wind resistance: The photovoltaic panels in this application are separated structures, and there is no linkage connection between them. The violent swing kinetic energy of one photovoltaic panel will not be transmitted to other photovoltaic panels. Each photovoltaic panel will inevitably be affected by multiple, multi-phase, and multi-directional strong winds at the same time. Their directions and combined forces will inevitably offset each other, and it is difficult to superimpose (resonate) and enhance each other, and it is difficult to form a destructive force on the photovoltaic system. Therefore, the wind resistance cost of this application is extremely low. It is worth emphasizing that the attached document of this application Figure 6 The innovative "swinging wind-resistant" agricultural photovoltaic complementary project implementation plan, shown here, differs from the existing "static wind-resistant" technology approach and has passed field testing during Super Typhoon Makar (Category 17), the 11th (Category 11) of 2024. Analysis shows that the "swinging wind-resistant" approach employed in this application uses a dynamic approach to combat dynamic winds, while the existing "static wind-resistant" approach uses a static approach to combat static winds. These two approaches employ distinct technical approaches, resulting in stark contrasts in their effectiveness.

[0037] Second, air ducting reduces wind resistance: This application proposes creating a certain distance K between adjacent photovoltaic panels to create a smooth air passageway between them, thereby reducing wind resistance in the photovoltaic system. Compared to the current solution of tightly connecting adjacent photovoltaic panels without leaving any gaps, this application's technical measure of air ducting reduces wind resistance and does not increase costs.

[0038] Third, it has achieved the technical effect of being able to withstand super typhoons in extraordinary times (i.e., half a day that occurs once in ten years) and to generate stable power under normal conditions (i.e., 99.99% of the time), thus reducing wind resistance costs and hardware investment.

[0039] Fourthly, the innovative design of the limiting slide and its limiting rope can keep the photovoltaic panel motionless in light winds, achieving the technical effect of further stabilizing power generation under normal conditions.

[0040] Fifth, this application can be widely used in agricultural production and park flower cultivation. For example, a park in Lingao County has adopted the attached Figure 16 and attached Figure 19 The technical solution not only achieves stable photovoltaic power generation, but also realizes agricultural irrigation, promoting agricultural production such as flowers. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 The background technology "A solar photovoltaic component support for fish-light complementation (CN204498056U)" in the accompanying drawings of the specification Figure 1 ”.

[0042] Figure 2 This is a structural diagram of a swaying, wind-resistant, stable power generation agricultural-photovoltaic complementary system in this application (Example 1).

[0043] Figure 3 for Figure 2 Schematic diagram of the structure of the relationship between the spring, fuse limit rope and electric heating element.

[0044] Figure 4 for Figure 3 Structural diagram of the relationship between the fuse limit rope and the electric heating element.

[0045] Figure 5 This is a schematic diagram of the positional relationship structure of the photovoltaic panels, beams, stabilizer bars, levers, limit fuse ropes, etc. in this application (Example 2).

[0046] Figure 6 for Figure 5 A side view schematic diagram of a device without a limit fuse rope.

[0047] Figure 7 This is a side view schematic diagram of a heavy object used in this application (Example 3).

[0048] Figure 8 This is a side view schematic diagram of a method of using a limiting permanent magnet in the present application (Example 4).

[0049] Figure 9 This is another structural schematic diagram of a swing-resistant wind-resistant stable power generation agricultural-photovoltaic complementary system in this application (Example 5).

[0050] Figure 10 This is another structural diagram of a swing-resistant, wind-resistant, stable power generation agricultural-photovoltaic complementary system in the present application (Example 6).

[0051] Figure 11 This is a schematic diagram of the position relationship between the beam and the photovoltaic panel.

[0052] Figure 12 A schematic diagram of the positional relationship between the photovoltaic panel, spring, beam and stabilizer bar.

[0053] Figure 13 A schematic diagram of the positional relationship between a photovoltaic panel and adjacent photovoltaic panels.

[0054] Figure 14 This is a structural diagram of the positional relationship between the photovoltaic panel, spring, load-bearing cable (i.e., beam), stabilizing cable (i.e., stabilizing rod), and limiting permanent magnet in the present application (Example 7).

[0055] Figure 15 This is a structural diagram of the positional relationship between the photovoltaic panel, spring, load-bearing cable (i.e., beam), stabilizing cable (i.e., stabilizing rod) and limiting slide in the present application (Example 8).

[0056] Figure 16 This is a structural diagram of the positional relationship between the photovoltaic panel, spring, load-bearing cable (i.e., beam), stabilizing cable (i.e., stabilizing rod) and limiting slide in the present application (Example 9).

[0057] Figure 17 This is a structural diagram of the positional relationship between the photovoltaic panel, the heavy object, the load-bearing cable (i.e., the beam), the stabilizing cable (i.e., the stabilizing rod), and the limiting slide in the present application (Example 10).

[0058] Figure 18 This is a structural diagram of a photovoltaic stand composed of a photovoltaic panel, a spring, a beam and a limiting permanent magnet in the present application (Example 11).

[0059] Figure 19 This is a structural diagram of a photovoltaic stand composed of a photovoltaic panel, a spring, a beam and a limiting slide in the present application (Example 12).

[0060] Figure 20 The figure is a structural diagram of an undesirable infinite position slide design.

[0061] Figure 21 This is a structural diagram of another undesirable infinite position slide design.

[0062] Figure 22 This is another structural diagram of the positional relationship between the photovoltaic panel, the heavy object, the load-bearing cable (i.e., the beam), the stabilizing cable (i.e., the stabilizing rod), and the limiting slide in the present application (Example 10).

[0063] Figure 23 This is a schematic structural diagram of the positional relationship among the photovoltaic panels, springs, load-bearing cables, stabilizing cables, limiting slides, and limiting ropes in the present application (Example 13).

[0064] Figure 24 This is a schematic structural diagram of the positional relationship among the photovoltaic panels, springs, load-bearing cables, stabilizing cables, limiting slides, and limiting pull rods in the present application (Example 13).

[0065] Explanation of the accompanying numbers: 1-column, 2-spring, 3-photovoltaic panel, 4-lever, 5-stabilizer bar, 6-crossbeam, 7-limit fuse rope, 8-electric heating element, 9-electric connecting line, 10-saddle, 11-limit bolt, 12-electric device, 13-wind sensor, 14-limit permanent magnet, 15-limit overload self-breaking rope, 16-crowbar, 17-weight, 18-fulcrum, 19-support pole, 20-hanging slip ring, 21-clamp sheath, 22-gap, 23-photovoltaic stand, 24-elastic pad, 25-limit pull rope, 26-limit slide, 27-clamp spring bolt, 28-short section (of limit pull rope), 29-long section (of limit pull rope), 30-friction slide, 31-limit pull rod, 32-buffer pad, 33-irrigation water pipe. DETAILED DESCRIPTION

[0066] In order to make the technical means, creative features, objectives and effects achieved by this application easy to understand, this application is further explained below in conjunction with specific implementation methods.

[0067] In the description of this application, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on this application.

[0068] It should be noted that, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, "connected" can refer to both electrical and direct connection. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0069] Example 1.

[0070] like Figure 2 As shown, a photovoltaic support consisting of a column 1, a beam 6, and a stabilizing rod 5 is assembled on the ground.

[0071] On the crossbeam 6 of the photovoltaic support, photovoltaic panels 3 are mounted at a certain distance K.

[0072] Leverages, such as levers 4, are mounted at the top and bottom ends of the photovoltaic panel 3. A spring 2 with a yield point of 4.13-122 kgf is connected to the lower end of lever 4. The spring 2 and lever 4 pull the photovoltaic panel 3 against the stabilizer 5, allowing the photovoltaic panel 3 to be mounted on the photovoltaic support via a non-fixed mounting structure (such as a bearing, a ride-on connection, or a hinge connection). This non-fixed mounting structure allows the photovoltaic panel 3 to sway relative to the photovoltaic support in strong winds. This reduces the windward area of ​​the photovoltaic panel 3, widens the wind path, and reduces the impact of wind on the photovoltaic panel 3, improving the wind resistance of the entire photovoltaic system. In this way, in calm or light wind conditions, the photovoltaic panel 3, supported by the spring 2, remains relatively stationary, facing the sky (at the optimal tilt angle), to receive sunlight and generate electricity.

[0073] In the previous step, the lever 4, the stabilizer bar 5, and the spring 2 constitute a buffer mechanism, which is used to effectively absorb kinetic energy and slow down the swing amplitude and speed of the photovoltaic panel 3 caused by the wind through its elasticity when encountering strong wind conditions, so as to protect the photovoltaic panel 3 from excessive stress damage caused by violent swinging, and automatically restore the photovoltaic panel 3 to a relatively static normal state facing the sky after the strong wind passes.

[0074] It is desirable that Figure 3 、 Figure 4 As shown, a 150°C melting point limit fuse rope 7 is threaded through the spring 2 and tied to a heating element 8, such as a heating wire. The heating wire is then tied to the stabilizer bar 5. This allows the limit fuse rope 7, acting as an overload release device, to function during periods of calm or low winds, keeping the photovoltaic panel 3 motionless in a relatively static position facing the sky (at the optimal tilt angle) to receive sunlight and generate electricity. Finally, each heating element 8, such as a heating wire, is connected to the main control room via wires.

[0075] In this way, according to the weather forecast, before a strong typhoon hits, the staff in the main control room can close the power switch to make the heating wire and other heating elements 8 heat up and melt the limit fuse rope 7, so that the photovoltaic panel 3 can swing with the wind relative to the photovoltaic bracket; in this way, the windward area of ​​the photovoltaic panel 3 is reduced to expand the wind channel, thereby effectively reducing the direct impact of the wind on the photovoltaic panel 3 and improving the wind resistance of the entire photovoltaic system.

[0076] The disadvantage of the above-mentioned manual closing method is that after the typhoon, a new limit fuse rope 7 needs to be manually tied. Although the rope tying work is tedious, super typhoons usually occur once every ten years, so the rope tying work is also not a frequent occurrence.

[0077] The overload release devices such as the above-mentioned limit fuse rope 7 can be made of heat-meltable polymers such as polypropylene and polypropylene.

[0078] Example 2.

[0079] like Figure 5 As shown, a flexible photovoltaic support including a crossbeam 6 (for example, a steel cable is used as the crossbeam 6 ) and a stabilizing rod 5 is assembled.

[0080] On the beams 6 of the flexible photovoltaic support, photovoltaic panels 3 are placed at a certain distance K. It is best if the long sides of the photovoltaic panels 3 are parallel to the beams 6. In other words, it is best if the wide sides of the photovoltaic panels 3 are perpendicular to the beams 6 to reduce the stress caused by wind on the photovoltaic panels 3.

[0081] Lever 4 is mounted on either side of the photovoltaic panel 3. A spring 2 with a yield point of 4.13-122 kgf is connected to the lower end of lever 4. The spring 2 and lever 4 pull the photovoltaic panel 3 onto the stabilizer 5. For example, the spring 2 can directly pull the photovoltaic panel 3 onto the stabilizer 5, which is at the same height as or slightly lower than the photovoltaic panel 3. This allows the photovoltaic panel 3 to be mounted on the flexible photovoltaic support via a non-fixed mounting structure (such as a bearing connection, a riding connection, a hinge connection, or a hanging connection). This non-fixed mounting structure allows the photovoltaic panel 3 to sway relative to the flexible photovoltaic support in strong winds. This reduces the windward area of ​​the photovoltaic panel 3, expands the wind channel, effectively reduces the impact of wind on the photovoltaic panel 3, and improves the wind resistance of the entire photovoltaic system. In this way, in calm or light wind conditions, the photovoltaic panel 3, supported by the spring 2, will (consistently) remain in a relatively static state facing the sky (at the optimal tilt angle), receiving sunlight in a stable state to generate electricity.

[0082] In the previous step, the lever 4, the stabilizer bar 5, and the spring 2 constitute a buffer mechanism, which is used to effectively absorb kinetic energy and slow down the swing amplitude and speed of the photovoltaic panel 3 caused by the wind through its elasticity when encountering strong wind conditions, so as to protect the photovoltaic panel 3 from excessive stress damage caused by violent swinging, and automatically restore the photovoltaic panel 3 to a relatively static normal state facing the sky after the strong wind passes.

[0083] Preferably, a self-breaking overload rope 15 is threaded through the spring 2, for example, one that breaks when subjected to a tensile force exceeding 12.26 kg, and is attached to the stabilizer bar 5. This allows the self-breaking overload rope 15 to function as a restraint, keeping the photovoltaic panel 3 motionless in a relatively static position (at an optimal tilt angle) facing the sky, even in calm or light winds, to receive sunlight and generate electricity.

[0084] In this way, when a strong typhoon hits, the pulling force applied by the photovoltaic panel 3 and its lever 4 will (because it is greater than 12.26 kg) break the limit overload self-breaking rope 15, allowing the photovoltaic panel 3 to swing with the wind relative to the flexible photovoltaic bracket; in this way, the windward area of ​​the photovoltaic panel 3 is dynamically adjusted and the wind channel is expanded, thereby effectively reducing the impact of wind on the photovoltaic panel 3 and improving the wind resistance of the entire photovoltaic system.

[0085] The breaking strength of the overload limit self-breaking rope 15 or the yield point of the selected spring 2 can be selected from various suitable specifications, such as 4.13 kg, 5 kg, 10 kg, 15 kg, 50 kg, and 122 kg. The specific specifications can be selected based on the board width D, board length C, rod length B, wind resistance rating tests, or empirical values. This eliminates the need for the tethering work described in Example 1, thus avoiding post-disaster recovery work such as tethering.

[0086] Best as Figure 6 As shown, photovoltaic panels 3 are mounted on the same crossbeam 6 via a movable saddle 10. Lever 4 is fixed to panel 3 at one end and to stabilizer bar 5 at the other. Lever 4 and a spring 2 with a high yield point (tension greater than 12.26 kg) pull photovoltaic panels 3, keeping them stationary, facing the sky. This allows them to swing around crossbeam 6 in strong winds. This reduces the windward area of ​​photovoltaic panels 3 and expands the wind channel, effectively reducing the direct impact of wind on panels 3 and improving the wind resistance of the entire photovoltaic system.

[0087] Furthermore, preferably, the ratio of lever length B of lever 4 to panel width D of photovoltaic panel 3 (B / D) is ≥ 0.5, 1, 2, 3, 4, 5, or 10; and the ratio of lever length B to maximum spring working length L (B / L) is ≥ 1.5, 3, or 6, to limit the swaying amplitude of the photovoltaic panel to a relatively small range. This is because the longer lever 4 and the greater B / D, the easier it is to exert leverage and stabilize photovoltaic panel 3 with minimal tension. The optimal length B of lever 4 is 1-2 meters.

[0088] It is also preferred that Figure 11 、 Figure 13As shown, the area of ​​the photovoltaic panels 3 on one side of the beam 6 is larger than that on the other side, forming an asymmetric structure. This ensures that the photovoltaic panels 3 will inevitably sway with the wind, and the smaller area can be close to zero. Conversely, if the areas of the photovoltaic panels 3 on both sides of the beam 6 are equal, a "static wind resistance" situation may occur at a certain moment, which may cause the photovoltaic panels 3 to be damaged by excessive stress.

[0089] It is also preferred that Figure 12 As shown, springs 2 are used to pull photovoltaic panels 3 onto crossbeams 6, keeping them stationary, facing the sky. This allows them to swing around crossbeams 6 when strong winds blow. This reduces the windward area of ​​photovoltaic panels 3, widens the wind passage, and effectively reduces the direct impact of wind on photovoltaic panels 3, improving the wind resistance of the entire photovoltaic system.

[0090] Example 3.

[0091] like Figure 7 As shown, referring to the above-mentioned embodiment 2, the overload release device includes a weight 17 (for both buffering and limiting purposes). In the absence of wind or weak wind, the weight 17 is used to press down (including various pulling methods such as pulling) the photovoltaic panel 3 through a crowbar 16 with one end connected to a fulcrum 18 and the other end connected to a lever 4, and to limit it to a relatively static state facing the sky; in the event of strong wind, the pulling force of the photovoltaic panel 3 pulls up (including various moving methods such as prying up and pushing away) the weight 17 (causing it to roll down), and the spring 2 takes over to limit the swing amplitude of the photovoltaic panel 3 and slow down the swing speed of the photovoltaic panel; in this way, the windward area of ​​the photovoltaic panel 3 is reduced to expand the wind passage, thereby effectively reducing the direct impact of the wind on the photovoltaic panel 3 and improving the wind resistance of the system.

[0092] The weight of the above-mentioned weight 17 can be selected from various appropriate specifications such as 1kg, 3kg, 5kg, 10kg, 15kg, 50kg, 122kg, etc. The specific specifications can be selected based on the board width D, board length C, pole length B, wind resistance level test, and can also be selected based on experience.

[0093] Example 4.

[0094] like Figure 8 As shown, referring to the third embodiment above, a set of position-limiting permanent magnets 14 with a magnetic force of 12.26 kg is connected in parallel with the spring 2. This allows the position-limiting permanent magnets 14 to function during periods of calm or low winds, keeping the photovoltaic panel 3 motionless in a relatively static position (at an optimal tilt angle) facing the sky, allowing it to receive sunlight and generate electricity.

[0095] When a strong typhoon hits, the photovoltaic panel 3 and its lever 4 will break free from the limiting permanent magnet 14 (generating a pulling force greater than 12.26 kg), allowing the photovoltaic panel 3 to swing relative to the photovoltaic bracket with the wind; in this way, the windward area of ​​the photovoltaic panel 3 is reduced to expand the wind channel, thereby effectively reducing the direct impact of the wind on the photovoltaic panel 3 and improving the wind resistance of the system.

[0096] The suction strength (commonly known as magnetic attraction) of the above-mentioned limiting permanent magnet 14 can be selected from various suitable specifications of limiting permanent magnets 14 such as 1kg, 3kg, 5kg, 10kg, 15kg, 50kg, 122kg, etc. The specific specifications can be selected based on the board width D, board length C, rod length B, and wind resistance level test, and can also be selected based on empirical values.

[0097] Example 5.

[0098] like Figure 9 As shown, referring to the above examples 1 to 4, the stabilizer bar 5 is changed into a rotatable shaft, a limit bolt 11 is installed on the rotating shaft, the electric device 12 is connected to the rotating shaft, and each photovoltaic panel 3 is blocked by the limit bolt 11.

[0099] Preferably, the photovoltaic panel 3 is pulled on the rotation axis by a spring 2 .

[0100] It is desirable to employ common technical measures such as an intelligent wind monitoring system with a wind sensor 13 and remote control to intelligently manage and control overload release devices such as the limit bolt 11. This allows the overload release device to automatically open in a timely manner under extreme weather conditions, restoring the freedom of the photovoltaic panel 3 and allowing it to sway with strong winds, thereby reducing wind resistance and damage risks. The intelligent overload release device can be an intelligent electronic control system such as a motor, an electromagnet, or an electronic lock.

[0101] During normal times (i.e., when there is no wind or the wind is not strong), a stopper 11 (equivalent to a locking tongue) holds the photovoltaic panel 3 in a position with a preset inclination angle φ of 90 degrees (i.e., the photovoltaic panel 3 is mounted vertically). This prevents the photovoltaic panel 3 from swaying in light winds and maintains its vertical stability, facilitating efficient and stable power generation. When strong winds (e.g., winds of force 12 or above) arrive, an intelligent overload release device or manual operation can activate a switch, which, through the electric device 12 (including rotation, pulling, or pneumatic means), moves the stopper 11, releasing the photovoltaic panel 3 and allowing it to sway with the strong wind. This deflects the photovoltaic panel 3 under the influence of wind, reducing its frontal area and widening the wind passage, thereby effectively reducing the direct impact of wind on the photovoltaic panel 3 and improving the wind resistance of the entire photovoltaic system. The stopper 11 referred to in this application generally refers to the component that blocks the photovoltaic panel 3 and stabilizes it.

[0102] Example 6.

[0103] like Figure 10As shown, a photovoltaic support consisting of a column 1 and a beam 6 is assembled on the ground. The photovoltaic panel 3 is installed on the beam 6 in the photovoltaic support, and the beam 6 is installed on the photovoltaic support in a rotating shaft manner so that the photovoltaic panel 3 and the beam 6 swing around the axis together.

[0104] Photovoltaic panels 3 are fixed on the crossbeams 6 of the photovoltaic support at a certain distance K.

[0105] A beam 6 serves as a rotating shaft, allowing it to rotate relative to the column 1. A lever 4 is mounted at one end of the shaft, with a spring 2 attached to each end. Lever 4 and the spring 2, which has a high yield point (tension), pull the photovoltaic panel 3 against the column 1, thereby enabling it to be mounted on the photovoltaic support via a non-fixed mounting structure. This non-fixed mounting structure allows the photovoltaic panel 3 to sway relative to the photovoltaic support in the event of strong winds. This reduces the windward area of ​​the photovoltaic panel 3, widens the wind channel, and effectively reduces the impact of wind on the photovoltaic panel 3, improving the wind resistance of the entire photovoltaic system. In this way, in calm or mild wind conditions, the photovoltaic panel 3 remains relatively stationary, facing the sky (at the optimal tilt angle), to receive sunlight and generate electricity.

[0106] The spring 2 with a high yield point (tension) can be selected from various suitable specifications, such as 5kg, 10kg, 15kg, 30kg, 50kg, or 122kg. The specific specifications can be selected based on the board width D, board length C, rod length B, wind resistance rating tests, or empirical values. This eliminates the need for the tethering process described in Example 1, thus avoiding the inconvenience of tethering.

[0107] It should be noted that the lever 4, beam 6, column 1, spring 2, and photovoltaic panel 3 together constitute a buffer mechanism, which is used to effectively absorb and slow down the swing amplitude and speed of the photovoltaic panel 3 caused by wind force through its elasticity when encountering strong wind conditions, so as to protect the photovoltaic panel 3 from excessive stress damage caused by violent swinging, and automatically reset the photovoltaic panel 3 as a whole after the strong wind passes.

[0108] Example 7.

[0109] like Figure 14 As shown, a steel winch is used as a crossbeam 6 and a load-bearing cable, and a stabilizing cable is used as a stabilizing rod 5 to vertically suspend the (double-sided) photovoltaic panel 3 (preferably through a hanging slip ring 20 and a clamp sheath 21), so that the (double-sided) photovoltaic panel 3 remains in a stationary state with one side facing east and the other side facing west.

[0110] In other words, the crossbeam 6 is a load-bearing cable, and the stabilizer bar 5 is a stabilizing cable. The photovoltaic panel 3 (with a bifaciality ≥ 80%) is vertically suspended (i.e., vertically installed) on the load-bearing cable (preferably through a hanging slip ring 20 and a clamp sheath 21), so that the (bifacial) photovoltaic panel 3 maintains a static state with one side facing east and the other side facing west; the photovoltaic panels 3 are separated structures, have no linkage connection with each other, and can sway independently with strong winds.

[0111] An overload release device is assembled using a limiting permanent magnet 14, an elastic pad 24 (e.g., a retractable base), a lever 4, and a strut 19, each with a gap 22 of 0.10-15 mm (preferably self-opening). In other words, the overload release device has a self-opening gap 22 of 0.10-15 mm. This allows the photovoltaic panel 3 to sway in strong winds, breaking free from the magnetic attraction and opening the gap 22 to avoid collision. When the photovoltaic panel 3 needs to resist swaying in light winds, the magnetic attraction attracts it, closing the gap 22 to stabilize the panel 3. Experiments have also shown that without the overload release device, the spring 2 has difficulty stabilizing the photovoltaic panel 3 at wind speeds of level 3 to 6, resulting in a decrease in output power.

[0112] Embodiment 8.

[0113] like Figure 15 As shown, based on the seventh embodiment, the overload release device is replaced by a spring 2 (preferably with a yield point of 4.13-30 kg and a maximum working length L of less than 1.414 times the length of the strut 19) horizontally arranged on the stabilizing cable, a limiting slide 26 (i.e., a slip ring or pulley) fixed to the stabilizing cable (i.e., the stabilizing bar 5) with a clamp near the lower edge of the photovoltaic panel 3, and a (flexible) limiting rope 25 (e.g., a steel wire rope) passing through the limiting slide 26. The section of the limiting rope 25 on the left side of the limiting slide 26 is shorter, the short section 28 is connected to the lower edge of the photovoltaic panel 3, and the short section 25 is connected to the lower edge of the photovoltaic panel 3. 8 is less than 240 mm in length, preferably less than 120 mm, more preferably less than 60 mm, most preferably less than 30 mm, and extremely preferably less than 15 mm. The section of the limiting rope 25 on the right side of the limiting slide 26 is longer, and the long section 29 is preferably less than or equal to 1.414 times the rod rope spacing H, which is used to limit the swing angle of the photovoltaic panel 3 to within 90 degrees to prevent the photovoltaic panel 3 from being blown in circles by strong winds and tearing off the electrical connection line 9. The long section 29 turns right and is horizontally connected to one end of the spring 2. The other end of the spring 2 is fixed to the stabilizing cable (i.e., the stabilizing bar 5) with a clamp spring bolt 27.

[0114] Preferably, the specifications of spring 2 can follow the following selection criteria: the yield point of spring 2 ≥ C×D×9.25N / m², preferably the yield point of spring 2 ≥ C×D×19.6N / m², and best the yield point of spring 2 ≥ C×D×35.7N / m², where C represents the length of the photovoltaic panel and D represents the width of the photovoltaic panel.

[0115] In this way, when there is no wind or light wind, the photovoltaic panel 3 can be pulled by the unstretched spring 2 to maintain a normal state of stillness; when encountering strong winds, the photovoltaic panel 3 can pull the spring 2 to slow down the swing amplitude and speed of the photovoltaic panel 3.

[0116] In this example, because the limiting slide 26 is very close to the photovoltaic panel 3, because the short section 28 of the limiting rope 25 on the left side of the limiting slide 26 is very short, and because the limiting rope 25 bends around the limiting slide 26, the friction contact surface (between the two) is expanded and the friction force is increased. Therefore, when there is no wind or low wind force, it is easy to stabilize the photovoltaic panel 3 and keep it motionless. Research shows that the closer the limiting slide 26 is to the photovoltaic panel 3 and the shorter the short section 28 of the limiting rope 25, the easier it is to keep the photovoltaic panel 3 motionless when there is no wind or low wind force. On the contrary, if Figure 20 The design scheme shown does not use the limiting slide 26. Under the same light wind, it is easy to cause the photovoltaic panel 3 to swing, and the technical effect of stable power generation under normal conditions cannot be achieved, which will cause the system output power to drop significantly.

[0117] Embodiment 9.

[0118] like Figure 16 As shown, based on the eighth embodiment, the overload release device is replaced by a spring 2 (preferably with a yield point of 4.13-30 kg and a maximum working length L of less than 1.414 times the length of the support rod 19) vertically arranged between the stabilizing cable (stabilizing rod 5) and the irrigation water pipe 33, a limiting slide 26 (i.e., a slip ring) fixed to the upper stabilizing cable (i.e., the stabilizing rod 5) by a clamp near the lower edge of the photovoltaic panel 3, and a (flexible) limiting rope 25 (e.g., a steel wire rope) passing through the limiting slide 26. The portion of the limiting rope 25 on the upper side of the limiting slide 26 is fixed to the upper stabilizing cable (i.e., the stabilizing rod 5). It is shorter, and the short section 28 is connected to the lower edge of the photovoltaic panel 3. The length of the short section 28 is less than 240 mm, preferably less than 120 mm, more preferably less than 60 mm, and most preferably less than 30 mm. The limit rope 25 on the lower side of the limit slide 26 is longer, and the long section 29 is preferably less than or equal to 1.414 times the rod rope spacing H, which is used to limit the swing angle of the photovoltaic panel 3 to within 90 degrees to prevent the photovoltaic panel 3 from being blown in circles by strong winds and tearing off the electrical connection line 9. The long section 29 is connected to the upper end of the spring 2, and the lower end of the spring 2 is fixed to the irrigation water pipe 33.

[0119] In this way, when there is no wind or light wind, the photovoltaic panel 3 can be pulled by the unstretched spring 2 to maintain a normal state of stillness; when encountering strong winds, the photovoltaic panel 3 can pull the spring 2 to slow down the swing amplitude and speed of the photovoltaic panel 3.

[0120] In this example, because the limiting slide 26 is very close to the photovoltaic panel 3 and because the short section 28 of the limiting rope 25 on the upper side of the limiting slide 26 is very short, it is easy to stabilize the photovoltaic panel 3 and keep it motionless when there is no wind or low wind force. Research shows that the closer the limiting slide 26 is to the photovoltaic panel 3 and the shorter the short section 28 of the limiting rope 25 on the upper side of the limiting slide 26, the easier it is to keep the photovoltaic panel 3 motionless when there is no wind or low wind force. Conversely, if Figure 20 In the design scheme shown in the figure, which does not use the limiting slide 26, it is difficult to keep the photovoltaic panel 3 motionless under the same light wind.

[0121] This example reduces system costs and increases irrigation function for farmland.

[0122] Example 10.

[0123] like Figure 17 、 Figure 22 As shown, based on Example 8, the overload release device is replaced with a vertically suspended weight 17 (weighing 4.13-30 kg), a limiting slider 26 (i.e., a slip ring) secured to the stabilizing cable (i.e., the stabilizing rod 5) with a clamp near the bottom edge of the photovoltaic panel 3, and a limiting pull rope 25 (e.g., a steel wire rope) passing through the limiting slider 26. The upper portion of the limiting pull rope 25 is shorter, with a short section 28 connecting to the bottom edge of the photovoltaic panel 3. The short section 28 is less than 240 mm, preferably less than 120 mm, more preferably less than 60 mm, and most preferably less than 30 mm. The lower portion of the limiting pull rope 25 is longer, with a long section 29 suspending the weight 17. The long section 29 is preferably less than or equal to 1.414 times the rod-cable spacing H, and is used to limit the swing angle of the photovoltaic panel 3 to within 90 degrees to prevent the photovoltaic panel 3 from spinning in strong winds and severing the electrical connection lines 9.

[0124] Preferably, the specifications of the weight 17 can follow the following selection criteria: the total weight of one or more weights 17 used for the same photovoltaic panel is ≥ C×D×9.25N / m², preferably the total weight is ≥ C×D×19.6N / m², and most preferably the total weight is ≥ C×D×35.7N / m², where C represents the length of the photovoltaic panel and D represents the width of the photovoltaic panel.

[0125] In this way, when there is no wind or light wind, the photovoltaic panel 3 can be pulled by the weight 17 to keep it stationary; when encountering strong wind, the photovoltaic panel 3 can pull up the weight 17 to reduce the swing amplitude and speed of the photovoltaic panel 3.

[0126] In this example, because the limiting slide 26 is very close to the photovoltaic panel 3 and because the short section 28 of the limiting rope 25 on the upper side of the limiting slide 26 is very short, it is easy to stabilize the photovoltaic panel 3 and keep it motionless when there is no wind or low wind force. Research shows that the closer the limiting slide 26 is to the photovoltaic panel 3 and the shorter the short section 28 of the limiting rope 25 on the upper side of the limiting slide 26, the easier it is to keep the photovoltaic panel 3 motionless when there is no wind or low wind force. Conversely, if Figure 21 In the design shown without using the stabilizing rope (ie, the stabilizing rod 5 ) and the limiting slide 26 , it is difficult to keep the photovoltaic panel 3 motionless under the same light wind.

[0127] In this example, the photovoltaic panel 3 can also be mounted on the load-bearing cable at the optimal local inclination angle (i.e., non-fixed installation), or the stabilizing cable can be installed at the same height or slightly lower than the photovoltaic panel 3, and the photovoltaic panel 3 can be pulled on the stabilizing cable through the weight 17, the limiting slide 26 and the limiting pull rope 25 to maintain a static normal state.

[0128] Example 11.

[0129] like Figure 18 As shown, a photovoltaic signboard 23 is constructed using two 300mm diameter PHC precast concrete piles (serving as columns 1) 5 meters above the ground (buried 3 meters in the soil), four 80mm diameter steel pipe beams 6, and (bifacial) photovoltaic panels 3. For example, four 1134mm x 1720mm (bifacial) photovoltaic panels 3 are vertically suspended from the beams 6 (preferably via suspension slip rings 20). Springs 2 are used to pull the (bifacial) photovoltaic panels 3 onto the beams 6 below them, maintaining a stationary state with one side facing east and the other west.

[0130] The overload release device is then assembled using the limiting permanent magnets 14, the springs 2, and the crossbeam 6, creating a gap 22 with a range of 0.10-15 mm (preferably self-opening). This prevents collisions between the limiting permanent magnets 14 when the photovoltaic panels 3 sway in the wind. Tests have also shown that without the overload release device, the springs 2 are unable to stabilize the photovoltaic panels 3 at wind speeds of level 3 to 6, resulting in a decrease in output power.

[0131] It is desirable that the specifications of the limiting permanent magnet 14 should follow the following selection criteria: the magnetic attraction force of the permanent magnet ≥ C×D×9.25N / m², preferably the magnetic attraction force of the permanent magnet ≥ C×D×19.6N / m², and best the magnetic attraction force of the permanent magnet ≥ C×D×35.7N / m², where C represents the length of the photovoltaic panel and D represents the width of the photovoltaic panel.

[0132] In comparison, the "Photovoltaic Stand Unit J" in the "Inter-Standard Agricultural Photovoltaic Complementary Method (CN120074337A)" lacks a buffer mechanism like Spring 2 or an overload release device. When used in the same wind conditions (e.g., a level 12 typhoon), its "Stands A / B" must use 500mm diameter PHC piles. Based on current market prices, 500mm diameter PHC piles (including materials and labor) cost 230 yuan per meter, while 300mm diameter PHC piles (including materials and labor) cost 105 yuan per meter. In comparison, the present application's use of buffer mechanisms like Spring 2 and an overload release device reduces the cost of column 1 by 54%, a significant cost savings.

[0133] In summary, the optimal implementation scheme of the swinging, wind-resistant, stable power generation, agricultural and photovoltaic complementary system provided by this application is: the column 1, the beam 6, the photovoltaic panel 3, the buffer mechanism including but not limited to the spring 2, and the overload release device including but not limited to the limiting permanent magnet 14, together constitute a photovoltaic stand 23 structure (the column 1 has a very low cost).

[0134] Example 12.

[0135] like Figure 19 As shown, referring to Examples 9 and 11, a photovoltaic signboard 23 is constructed using two 300mm diameter PHC precast concrete piles (serving as columns 1) 5 meters above the ground (buried 3 meters in the soil), four 80mm diameter steel pipe beams 6, and (bifacial) photovoltaic panels 3. For example, four 1134mm x 1720mm (bifacial) photovoltaic panels 3 are vertically suspended from the beams 6 (preferably via suspension rings 20). Springs 2, limit ropes 25, and limit slides 26 (e.g., pulleys or slip rings) are used to pull the (bifacial) photovoltaic panels 3 onto the beams 6 below them, maintaining a stationary state with one side facing east and the other facing west.

[0136] In this way, when there is no wind or light wind, the photovoltaic panel 3 can be pulled by the spring 2 to maintain a normal state of stillness; when encountering strong winds, the photovoltaic panel 3 can pull the spring 2 to slow down the swing amplitude and swing speed of the photovoltaic panel 3.

[0137] In this example, because the limiting slider 26 is very close to the photovoltaic panel 3, the shorter section 28 on the left side of the limiting slider 26 is very short, and the limiting rope 25 curves around the limiting slider 26, the frictional contact surface is expanded and the frictional force is increased. Therefore, the photovoltaic panel 3 is easily stabilized in calm or low wind conditions. Research has shown that the closer the limiting slider 26 is to the photovoltaic panel 3, the shorter the shorter section 28 of the limiting rope 25 on the upper side of the limiting slider 26, and the greater the curve of the limiting slider 26, the easier it is to stabilize the photovoltaic panel 3 in calm or low wind conditions.

[0138] In comparison, the "Photovoltaic Stand Unit J" in the "Inter-Standard Agricultural Photovoltaic Complementary Method (CN120074337A)" lacks a buffer mechanism like Spring 2 or an overload release device. When used in the same wind conditions (e.g., a level 12 typhoon), its "Stands A / B" must use 500mm diameter PHC piles. Based on current market prices, 500mm diameter PHC piles (including materials and labor) cost 230 yuan per meter, while 300mm diameter PHC piles (including materials and labor) cost 105 yuan per meter. In comparison, the present application's use of buffer mechanisms like Spring 2 and an overload release device reduces the cost of column 1 by 54%, a significant cost savings.

[0139] In summary, the preferred implementation scheme of the swinging, wind-resistant, stable power generation agricultural-photovoltaic complementary system provided by the present application is: columns 1, beams 6, photovoltaic panels 3, buffer mechanisms including but not limited to springs 2, and overload release devices including but not limited to limiting slides 26 and limiting pull ropes 25, together constitute a photovoltaic stand 23 structure (with very low cost for the column 1).

[0140] Example thirteen.

[0141] As shown in Figure 23, on the basis of Example 10, a friction slider 30 with a rough surface and other large friction force is fixed on the stabilizing cable (i.e., the stabilizing rod 5) and is close to the photovoltaic panel 3; the limiting pull rope 25 bends and passes around the friction slider 30 to expand the friction contact surface (between the two) and increase the friction force, wherein the long section 29 of the limiting pull rope 25 is used to hang the weight 17 (or the pulling spring 2), and the short section 28 (with a length less than 60 mm) is connected to the photovoltaic panel 3, so that the photovoltaic panel 3 is subjected to the pulling force (from the two short sections 28 in opposite directions at the same time), which is the resultant force of the sliding friction between the friction slider 30 and the limiting pull rope 25, and the gravity generated by the weight 17 (or the elastic force generated by the spring 2).

[0142] It is desirable to provide an elastic buffer such as a buffer pad 32 between the friction slider 30 and the weight 17, such as an elastic body such as a rubber washer strung on the limit pull rope 25, to prevent the weight 17 from being pulled up rapidly in strong winds and directly hitting the friction slider 30, thereby avoiding strong impact noise and vibration.

[0143] In this way, when there is no wind or light wind, the two limit ropes 25 can pull the photovoltaic panel 3 from both sides of the friction slide 30 to keep it in a static state; when encountering strong winds, the photovoltaic panel 3 can overcome the friction force and pull up the weight 17 to slow down the swing amplitude and speed of the photovoltaic panel 3.

[0144] The two limit ropes 25 in this embodiment can also be Figure 24 As shown, a rigid U-shaped limiting rod 31 is used.

[0145] The above disclosure is only a preferred embodiment of the present application. The drawings are merely schematic structural diagrams and are not drawn according to the actual size ratio. They cannot be used to limit the scope of rights of the present application. Equivalent changes made based on the claims of the present application still fall within the scope covered by the present application.

Claims

1. A wind-resistant, stable, and swaying agricultural photovoltaic complementary system, comprising upright posts erected in farmland, beams mounted on the posts, a photovoltaic support consisting of the posts and beams, and photovoltaic panels mounted on the photovoltaic support, characterized in that: ① The photovoltaic panel is mounted on the photovoltaic support through a non-fixed mounting structure. The non-fixed mounting structure allows the photovoltaic panel to swing relative to the photovoltaic support under strong winds, thereby reducing the windward area of ​​the photovoltaic panel and expanding the wind channel, thereby reducing the impact of strong winds on the photovoltaic panel and improving the wind resistance of the system; ② When there is no wind or light wind, the photovoltaic panels remain relatively still to receive sunlight and generate electricity; ③ The photovoltaic panel is equipped with at least one buffer mechanism, which connects the swingable photovoltaic panel and the fixed photovoltaic bracket. The buffer mechanism includes but is not limited to a spring mechanism or a weight mechanism; the buffer mechanism is used to absorb kinetic energy, limit the swing amplitude of the photovoltaic panel and slow down the swing speed during strong winds to avoid damage to the photovoltaic panel due to excessive stress, and automatically reset the photovoltaic panel after the strong wind.

2. The swing wind-resistant stable power generation and agricultural photovoltaic complementary system according to claim 1 is characterized by: The buffer mechanism is a spring mechanism, one end of which is connected to the swingable photovoltaic panel and the other end is connected to the fixed photovoltaic bracket, so that the swing amplitude of the photovoltaic panel is limited and the swing speed is slowed down through the elastic deformation of the spring. The total yield point of the spring used for the same photovoltaic panel meets the following requirements: ≥C×D×9.25N / m², preferably ≥C×D×19.6N / m², and more preferably ≥C×D×35.7N / m²; Alternatively, the buffer mechanism is a weight mechanism, and the weight is suspended at the bottom of the photovoltaic panel. When there is no wind or light wind, the photovoltaic panel is pulled by the gravity of the weight to keep it still. When there is strong wind, the gravity of the weight limits the swing amplitude of the photovoltaic panel and slows down the swing speed. The total weight of the weights used for the same photovoltaic panel meets the following requirements: ≥C×D×0.95kg / m², preferably ≥C×D×2kg / m², and more preferably ≥C×D×3.65kg / m².

3. The swing wind-resistant stable power generation and agricultural photovoltaic complementary system according to claim 1 is characterized by: The non-fixed installation structure is a movable connection structure between the photovoltaic panel and the crossbeam in the photovoltaic bracket, including but not limited to a hinge connection, a rotating shaft connection or a hanging connection, so that the photovoltaic panel can swing with strong winds.

4. The swing wind-resistant stable power generation and agricultural photovoltaic complementary system according to claim 2 is characterized by: The spring connects the photovoltaic panel and the photovoltaic bracket through a lever structure.

5. The swing-resistant wind-resistant stable power generation and agricultural photovoltaic complementary system according to claim 1 is characterized by: The photovoltaic panel is equipped with an overload release device connected to the photovoltaic bracket. The overload release device is used to stabilize the photovoltaic panel to maintain a normal static state when there is no wind or light wind, and to release the photovoltaic panel in strong winds and let the buffer mechanism limit the swing amplitude of the photovoltaic panel and slow down the swing speed.

6. The swing wind-resistant stable power generation agricultural photovoltaic complementary system according to claim 5 is characterized in that: The overload release device is selected from any one of the following ①-⑧: ① The overload release device includes a limiting permanent magnet, which is used to attract the photovoltaic panel to keep it stationary through the magnetic attraction of the limiting permanent magnet when there is no wind or light wind. When there is strong wind, the photovoltaic panel will break free from the magnetic attraction limit and the buffer mechanism will limit the swing amplitude and slow down the swing speed of the photovoltaic panel. The total magnetic attraction of the limiting permanent magnets used for the same photovoltaic panel meets the following requirements: ≥ C × D × 9.25 N / m², preferably ≥ C × D × 19.6 N / m², and more preferably ≥ C × D × 35.7 N / m²; ② The overload release device includes a limit bolt and an electric device that drives it. It is used to lock the photovoltaic panel to keep it stationary through the limit bolt when there is no wind or light wind. It is used to drive the limit bolt to move away through the electric device when there is strong wind, so that the photovoltaic panel is released from the lock and the buffer mechanism is used to limit the swing amplitude of the photovoltaic panel and slow down the swing speed; ③ The overload release device includes a fusible limit rope and an electric heating element; when there is no wind or light wind, the fusible limit rope is used to restrain the photovoltaic panel to keep it still; when there is strong wind, the electric heating element is used to heat the fusible limit rope to release the photovoltaic panel from the restraint and hand it over to the buffer mechanism to limit the swing amplitude of the photovoltaic panel and slow down the swing speed; ④ The overload release device includes a limit overload self-breaking rope, which is used to restrain the photovoltaic panel to keep it stationary through the limit overload self-breaking rope when there is no wind or light wind, and is used to allow the photovoltaic panel to break the limit overload self-breaking rope by itself in strong wind, and the buffer mechanism to limit the swing amplitude of the photovoltaic panel and slow down the swing speed; ⑤ The overload release device includes a weight, which is used to press the photovoltaic panel to keep it stationary by part of the weight of the weight when there is no wind or light wind, and is used to pull the weight up by the photovoltaic panel itself to overcome the gravity when there is strong wind, and the full weight of the pulled weight is used to limit the swing amplitude of the photovoltaic panel and slow down the swing speed; ⑥ The overload release device includes a spring with a large yield point, which is used to pull the photovoltaic panel to keep it stationary through the unstretched spring when there is no wind or light wind, and is used to limit the swing amplitude of the photovoltaic panel and slow down the swing speed by stretching the spring by the photovoltaic panel itself and handing over the stretched spring to the photovoltaic panel in strong wind; The total yield point of the springs used in the same photovoltaic panel meets the following requirements: ≥C×D×9.25N / m², preferably ≥C×D×19.6N / m², and more preferably ≥C×D×35.7N / m²; ⑦ The overload release device includes a spring, a limiting slide near the photovoltaic panel frame or lever, and a limiting pull rope passing through the limiting slide; the limiting pull rope on one side of the limiting slide is shorter, and the short section is connected to the photovoltaic panel, while the limiting pull rope on the other side of the limiting slide is longer, and the long section is connected to the spring; in the absence of wind or light wind, the unstretched spring pulls the photovoltaic panel through the limiting pull rope to keep it stationary; in strong winds, the photovoltaic panel stretches the spring itself, and the stretched spring limits the swing amplitude of the photovoltaic panel and slows down the swing speed; The total yield point of the springs used in the same photovoltaic panel meets the following requirements: ≥C×D×9.25N / m², preferably ≥C×D×19.6N / m², and more preferably ≥C×D×35.7N / m²; ⑧The overload release device includes a heavy object, a limiting slide close to the photovoltaic panel frame or lever, and a limiting rope passing through the limiting slide; the section of the limiting rope on the upper side of the limiting slide is shorter, and the short section is connected to the photovoltaic panel, and the section of the limiting rope on the lower side of the limiting slide is longer, and the long section hangs the heavy object; when there is no wind or light wind, the gravity of the heavy object pulls the photovoltaic panel through the limiting rope to keep it stationary; in strong winds, the photovoltaic panel itself pulls the heavy object, and the gravity of the heavy object is used to limit the swing amplitude of the photovoltaic panel and slow down the swing speed; the total weight of the heavy objects used for the same photovoltaic panel meets the following requirements: ≥C×D×0.95kg / m², preferably ≥C×D×2kg / m², and more preferably ≥C×D×3.65kg / m².

7. The swing wind-resistant stable power generation and agricultural photovoltaic complementary system according to any one of claims 1 to 6, characterized in that: The crossbeam is a load-bearing cable, and the photovoltaic bracket also includes a stabilizing cable. Photovoltaic panels with a bifaciality rate of ≥80% are vertically hung on the load-bearing cable and maintain a static state with one side facing east and the other facing west; each photovoltaic panel is an independent and separated structure with no linkage connection, and can sway independently with strong winds.

8. The swing wind-resistant stable power generation and agricultural photovoltaic complementary system according to any one of claims 1 to 6, characterized in that: The columns, beams, photovoltaic panels, buffer mechanisms and overload release devices together constitute a photovoltaic stand.

9. The swing wind-resistant stable power generation and agricultural photovoltaic complementary system according to any one of claims 1 to 6, characterized in that: There is a certain distance K between two adjacent photovoltaic panels, and the distance K is 0.1D-1D, so that a wind channel is formed between the two adjacent photovoltaic panels; or, an irrigation water pipe is also set up on the photovoltaic bracket.

10. The swing-resistant wind-resistant stable power generation and agricultural photovoltaic complementary system according to claim 6 is characterized by: The short section length of the limiting rope is ≤240mm, preferably ≤120mm, more preferably ≤60mm, further preferably ≤30mm, and extremely preferably ≤15mm; and / or, the long section length of the limiting rope is ≤1.41H, where H is the spacing between adjacent rods on the photovoltaic bracket, so as to limit the swing angle of the photovoltaic panel to within 90 degrees.

Images