Vibration control device, flexible photovoltaic panel system and energy collection method

Abstract

The invention belongs to the photovoltaic field, and particularly relates to a vibration control device, a flexible photovoltaic panel system and an energy collection method.The vibration control device comprises an air blowing mechanism, and an air blowing opening of the air blowing mechanism faces the panel face of a flexible photovoltaic panel; according to the vibration control device provided by the invention, the vibration intensity of the flexible photovoltaic panel and the supporting suspension cable can be controlled according to the magnitude and existence of environmental wind energy, and when the environmental wind energy is high, the vibration control device reduces the vibration intensity of the flexible photovoltaic panel and the supporting suspension cable; the use stability of the cable structure flexible photovoltaic panel system is improved, the service life of the cable structure flexible photovoltaic panel system is prolonged, a good working environment is provided for the flexible photovoltaic panel so as to improve the conversion rate of solar energy, and when the environmental wind energy is small or zero, the vibration control device can enhance the vibration strength of the flexible photovoltaic panel and the supporting suspension cable so as to improve the reliability of the system. The surface of the flexible photovoltaic panel can be cleaned through vibration, the service life of the flexible photovoltaic panel is prolonged, and the conversion rate of solar energy is improved.

Description

Technical Field

[0001] The present invention belongs to the field of photovoltaics, and in particular relates to a vibration control device, a flexible photovoltaic panel system and an energy collection method. Background Art

[0002] With the depletion of non-renewable energy such as oil and coal, my country is committed to vigorously developing clean energy such as solar energy, wind energy, and ocean energy in order to cope with the global climate crisis, protect the ecological environment, achieve sustainable development, and promote the green transformation of energy structure. Solar energy has become the preferred power generation resource due to its sustainability and availability. Therefore, there have been a lot of studies on photovoltaic power stations that directly convert solar energy into electricity using the photovoltaic effect of semiconductor interfaces. However, with the development of the photovoltaic industry, the shortcomings of traditional fixed photovoltaic support structures such as large area, poor adaptability to complex terrain, high construction cost, and short span have gradually emerged. A flexible photovoltaic support structure based on tensioned cables has been studied. It can reduce construction costs, allow large spans and higher clearances, and adapt to complex terrain.

[0003] Due to the low damping of the cable, the flexible photovoltaic support structure is prone to large vibrations under the action of wind. If this vibration is not controlled, it will directly affect the efficiency of the photovoltaic panel in converting light energy into electrical energy, and will also affect the stability and service life of the photovoltaic panel. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a vibration control device, a flexible photovoltaic panel system and an energy collection method, which can significantly improve the use stability, service life, solar energy conversion rate, cleanliness, etc. of the cable structure flexible photovoltaic panel system without affecting the solar energy collection effect of the original cable structure flexible photovoltaic panel system.

[0005] The present invention provides a vibration control device, comprising an air blowing mechanism, wherein the air blowing port of the air blowing mechanism is arranged toward the panel surface of the flexible photovoltaic panel; When the ambient wind energy is greater than the set value, the blowing mechanism is used to inject air fluid into the windward surface of the flexible photovoltaic panel to suppress flow separation on the windward surface of the flexible photovoltaic panel, increase the gas flow rate on the windward surface, and reduce the pressure difference on both sides of the flexible photovoltaic panel to suppress the vibration of the flexible photovoltaic panel; When the ambient wind energy is less than the set value and greater than zero, the blowing mechanism can be used to inject air fluid into one side of the flexible photovoltaic panel to increase the boundary layer velocity difference between the two sides of the flexible photovoltaic panel, increase the pressure difference between the two sides of the flexible photovoltaic panel to increase the vibration of the flexible photovoltaic panel; When the ambient wind energy is equal to zero, the blowing mechanism can be used to blow air to one side of the flexible photovoltaic panel to drive the flexible photovoltaic panel to vibrate.

[0006] Furthermore, in a single-span cable structure flexible photovoltaic panel system, at least two blowing mechanisms are arranged, and the blowing port of at least one blowing mechanism is arranged toward the lower side upper panel surface of the flexible photovoltaic panel, and the blowing port of at least another blowing mechanism is arranged toward the higher side lower panel surface of the flexible photovoltaic panel.

[0007] Furthermore, in a multi-span cable structure flexible photovoltaic panel system, at least two blowing mechanisms are arranged, and the blowing port of at least one blowing mechanism is arranged toward the lower side upper panel surface of the head end flexible photovoltaic panel, and the blowing port of at least another blowing mechanism is arranged toward the higher side lower panel surface of the tail end flexible photovoltaic panel.

[0008] Furthermore, the blowing mechanism is a synthetic jet actuator.

[0009] Furthermore, the blowing mechanism is fixedly arranged on one side of the flexible photovoltaic panel, and the blowing port acts on the other side of the flexible photovoltaic panel.

[0010] Furthermore, the vibration control device also includes a sensor for detecting ambient wind energy and ambient wind direction.

[0011] Furthermore, one sensor is arranged at each of the four corners of the cable-structured flexible photovoltaic panel system.

[0012] The present invention also provides a cable-structured flexible photovoltaic panel system, comprising the above-mentioned vibration control device. Furthermore, the cable-structured flexible photovoltaic panel system also includes a vibration energy collection component arranged between the bracket and the supporting cable in the cable-structured flexible photovoltaic panel system.

[0013] Furthermore, the present invention also provides a cable structure flexible photovoltaic panel energy collection method, using the cable structure flexible photovoltaic panel system, comprising the following steps: The flexible photovoltaic panel absorbs solar energy to collect energy; When the ambient wind energy is greater than the set value, the blowing mechanism is used to inject air fluid into the windward surface of the flexible photovoltaic panel, suppress the flow separation on the windward surface of the flexible photovoltaic panel, increase the gas flow rate on the windward surface, and reduce the pressure difference on both sides of the flexible photovoltaic panel to suppress the vibration of the flexible photovoltaic panel. At the same time, the vibration energy collection component collects energy through the vibration of the supporting cable. When the ambient wind energy is less than the set value and greater than zero, the blowing mechanism can be used to inject air fluid into one side of the flexible photovoltaic panel to increase the boundary layer velocity difference between the two sides of the flexible photovoltaic panel, increase the pressure difference between the two sides of the flexible photovoltaic panel to increase the vibration of the flexible photovoltaic panel, and at the same time, the vibration energy collection component collects energy through the vibration of the supporting cable; When the ambient wind energy is equal to zero, the blowing mechanism can be used to blow air to one side of the flexible photovoltaic panel to drive the flexible photovoltaic panel to vibrate, and at the same time the vibration energy collection component collects energy through the vibration of the supporting cable.

[0014] The beneficial effect of the present invention is that the vibration control device provided by the present invention can control the vibration intensity of the flexible photovoltaic panel and the supporting cable according to the size and presence or absence of environmental wind energy. When the environmental wind energy is large, the vibration control device reduces the vibration intensity of the flexible photovoltaic panel and the supporting cable to improve the use stability and service life of the cable-structured flexible photovoltaic panel system, and provide a good working environment for the flexible photovoltaic panel to improve the conversion rate of solar energy. When the environmental wind energy is small or zero, the vibration control device can enhance the vibration intensity of the flexible photovoltaic panel and the supporting cable or cause the flexible photovoltaic panel and the supporting cable to vibrate. The vibration can clean the surface of the flexible photovoltaic panel, increase its service life and improve the conversion rate of solar energy. In addition, when a vibration energy collection component is arranged between the bracket and the supporting cable in the cable-structured flexible photovoltaic panel system, when the environmental wind energy is small or zero, the vibration can also enable the vibration energy collection component to collect vibration energy.

[0015] In addition, the vibration can be controlled by setting an air blowing mechanism at a specific position on the surface of the flexible photovoltaic panel, and the air blowing mechanism only needs to flow air to the surface of the flexible photovoltaic panel to increase or decrease the boundary layer velocity difference on both sides of the flexible photovoltaic panel. The air blowing mechanism can have a simple structure, low energy consumption, and light weight, and has little change and impact on the original cable structure flexible photovoltaic panel system. On the basis of not affecting the solar energy collection effect of the original cable structure flexible photovoltaic panel system, the use stability, service life, solar energy conversion rate, and cleanliness of the cable structure flexible photovoltaic panel system are significantly improved. When a vibration energy collection component is set between the bracket and the supporting cable in the cable structure flexible photovoltaic panel system, it can also ensure that the vibration intensity of the supporting cable is in the appropriate power generation range of the vibration energy collection component, thereby ensuring the power generation effect of the vibration energy collection component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 A top view of a multi-span cable structure flexible photovoltaic panel system in the present invention; Attached Figure 2 It is a structural schematic diagram of a multi-span cable structure flexible photovoltaic panel system in the present invention; Attached Figure 3 It is a front view of the multi-span cable structure flexible photovoltaic panel system of the present invention; Attached Figure 4 It is a front view of the single-span cable structure flexible photovoltaic panel system of the present invention; Attached Figure 5 It is a structural schematic diagram of the air blowing mechanism in the present invention; Attached Figure 6It is a schematic diagram of the structure of the vibration energy collection component in the present invention; Attached Figure 7 It is a schematic diagram of the installation of the vibration energy collection component in the present invention.

[0017] In the figure, 1-cable structure flexible photovoltaic panel system; 11-flexible photovoltaic panel; 12-bracket; 13-support cable; 14-vibration energy collection component; 141-connecting plate; 1411-bolt mounting hole; 142-PVDF piezoelectric film; 143-metal layer; 144-environmental magnet; 15-vibration control device; 151-blowing mechanism; 1511-blowing port; 152-sensor. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] As attached Figure 1 -Attached Figure 7 As shown, the present invention provides a vibration control device 15, comprising an air blowing mechanism 151, wherein an air blowing port 1511 of the air blowing mechanism 151 is arranged toward the board surface of the flexible photovoltaic panel 11, and preferably, the air blowing port 1511 of the air blowing mechanism 151 is arranged toward the windward upstream end of the windward surface of the board surface of the flexible photovoltaic panel 11; When the ambient wind energy is greater than the set value, the blowing mechanism 151 is used to inject air fluid into the windward surface of the flexible photovoltaic panel 11, suppress the flow separation on the windward surface of the flexible photovoltaic panel 11, increase the gas flow rate on the windward surface, make the gas flow rates on the windward surface and the leeward surface close to each other, and then reduce the pressure difference on both sides of the flexible photovoltaic panel 11 to suppress the vibration of the flexible photovoltaic panel 11, and then reduce the vibration intensity of the flexible photovoltaic panel 11 and the supporting cable 13 in the cable-structured flexible photovoltaic panel system 1 when the ambient wind energy is too large, improve the use stability and service life of the cable-structured flexible photovoltaic panel system 1, and provide a good working environment for the flexible photovoltaic panel 11 to improve the conversion rate of solar energy; When the ambient wind energy is less than the set value and greater than zero, the blowing mechanism 151 can be used to inject air fluid into one side of the flexible photovoltaic panel 11, so that the boundary layer velocity difference between the two sides of the flexible photovoltaic panel 11 increases, and the pressure difference between the two sides of the flexible photovoltaic panel 11 increases to increase the vibration of the flexible photovoltaic panel 11. The enhanced vibration can clean the surface of the flexible photovoltaic panel 11, for example, by shaking off fallen leaves or debris covering the surface of the flexible photovoltaic panel 11, thereby increasing its service life and the conversion rate of solar energy. In addition, when a vibration energy collection component 14 is provided between the bracket 12 and the supporting suspension cable 13 in the cable structure flexible photovoltaic panel system 1, the energy collection effect of the vibration energy collection component 14 can be improved when the ambient wind energy is small; When the ambient wind energy is zero, the blowing mechanism 151 can be used to blow air to one side of the flexible photovoltaic panel 11, driving the flexible photovoltaic panel 11 to vibrate, and can clean the surface of the flexible photovoltaic panel 11, for example, shaking off fallen leaves or debris covering the surface of the flexible photovoltaic panel 11, thereby increasing its service life and improving the conversion rate of solar energy. In addition, when a vibration energy collection component 14 is arranged between the bracket 12 and the supporting cable 13 in the cable-structured flexible photovoltaic panel system 1, the flexible photovoltaic panel 11 and the supporting cable 13 can be vibrated when the ambient wind energy is zero, so that the vibration energy collection component 14 can collect vibration energy.

[0024] That is, the vibration control device 15 provided by the present invention can control the vibration intensity of the flexible photovoltaic panel 11 and the supporting cable 13 according to the size and presence of environmental wind energy. When the environmental wind energy is large, the vibration control device 15 reduces the vibration intensity of the flexible photovoltaic panel 11 and the supporting cable 13 to improve the use stability and service life of the cable-structured flexible photovoltaic panel system 1, and provide a good working environment for the flexible photovoltaic panel 11 to improve the conversion rate of solar energy. When the environmental wind energy is small or zero, the vibration control device 15 can enhance the vibration intensity of the flexible photovoltaic panel 11 and the supporting cable 13 or cause the flexible photovoltaic panel 11 and the supporting cable 13 to vibrate. The vibration enhancement can clean the surface of the flexible photovoltaic panel 11, increase its service life and improve the conversion rate of solar energy. In addition, when a vibration energy collection component 14 is arranged between the bracket 12 and the supporting cable 13 in the cable-structured flexible photovoltaic panel system 1, when the environmental wind energy is small or zero, the vibration can also enable the vibration energy collection component 14 to collect vibration energy.

[0025] In addition, the vibration can be controlled by setting a blowing mechanism 151 at a specific position on the surface of the flexible photovoltaic panel 11, and the blowing mechanism 151 only needs to flow air to the surface of the flexible photovoltaic panel 11 to increase or decrease the boundary layer velocity difference on both sides of the flexible photovoltaic panel 11. The blowing mechanism 151 can have a simple structure, low energy consumption, and light weight, and has little change and impact on the original cable structure flexible photovoltaic panel system 1. On the basis of not affecting the solar energy collection effect of the original cable structure flexible photovoltaic panel system 1, the use stability, service life, solar energy conversion rate, cleanliness, etc. of the cable structure flexible photovoltaic panel system 1 are significantly improved. When a vibration energy collection component 14 is set between the bracket 12 and the supporting cable 13 in the cable structure flexible photovoltaic panel system 1, it can also ensure that the vibration intensity of the supporting cable 13 is in the appropriate power generation range of the vibration energy collection component 14, thereby ensuring the power generation effect of the vibration energy collection component 14.

[0026] In one embodiment, referring to the attached Figure 4 In the single-span cable structure flexible photovoltaic panel system 1, at least two blowing mechanisms 151 are arranged, and the blowing port 1511 of at least one blowing mechanism 151 is arranged toward the lower side upper board surface of the flexible photovoltaic panel 11, and the blowing port 1511 of at least another blowing mechanism 151 is arranged toward the higher side lower board surface of the flexible photovoltaic panel 11.

[0027] Reference Figure 4 , when the ambient wind energy is greater than the set value, and when the ambient wind blows from the low side to the high side of the flexible photovoltaic panel 11 (refer to the attached Figure 4 In this case, refer to the attached Figure 4In the illustrated direction, the upper side of the flexible photovoltaic panel 11 is the windward side, the lower side is the leeward side, the left side is the upstream end, and the right side is the downstream end. The blowing mechanism 151 arranged on the upper plate surface on the lower side of the flexible photovoltaic panel 11 works, thereby suppressing the flow separation on the windward side of the flexible photovoltaic panel 11, increasing the gas flow rate on the windward side surface, making the gas flow rates on the windward side and the leeward side close, thereby reducing the pressure difference on both sides of the flexible photovoltaic panel 11 to suppress the vibration of the flexible photovoltaic panel 11; and when the ambient wind blows from the high side to the low side of the flexible photovoltaic panel 11 (refer to the attached Figure 4 In this case, refer to the attached Figure 4 In the illustrated direction, the lower side of the flexible photovoltaic panel 11 is the windward side, the upper side is the leeward side, the right side is the upstream end, and the left side is the downstream end. The blowing mechanism 151 arranged on the lower plate surface of the high side of the flexible photovoltaic panel 11 works, thereby suppressing the flow separation on the windward side of the flexible photovoltaic panel 11, increasing the gas flow rate on the windward side, making the gas flow rates on the windward side and the leeward side close, thereby reducing the pressure difference on both sides of the flexible photovoltaic panel 11 to suppress the vibration of the flexible photovoltaic panel 11; When the ambient wind energy is less than the set value, one or more blowing mechanisms 151 can be controlled to work, and air fluid can be injected into one side of the flexible photovoltaic panel 11 to increase the boundary layer velocity difference between the two sides of the flexible photovoltaic panel 11, thereby increasing the pressure difference between the two sides of the flexible photovoltaic panel 11 to increase the vibration of the flexible photovoltaic panel 11; When the ambient wind energy is zero, one of the blowing mechanisms 151 may be controlled to operate, or at least two blowing mechanisms 151 may be controlled to blow alternately to cause the flexible photovoltaic panel 11 to vibrate.

[0028] In one embodiment, referring to the attached Figure 1 -Attached Figure 3 In the multi-span cable structure flexible photovoltaic panel system 1, at least two blowing mechanisms 151 are arranged, and the blowing port 1511 of at least one blowing mechanism 151 is arranged toward the lower side upper panel surface of the head end flexible photovoltaic panel 11, and the blowing port 1511 of at least another blowing mechanism 151 is arranged toward the higher side lower panel surface of the tail end flexible photovoltaic panel 11.

[0029] Referring to Appendix 3, the upstream windward side of the multi-span cable structure flexible photovoltaic panel system 1 is most affected, and the rear row is less affected than the first row due to the barrier effect of the front row. Therefore, in the multi-span cable structure flexible photovoltaic panel system 1, only at least one blowing mechanism 151 is required to be provided on the head end flexible photovoltaic panel 11 and the tail end flexible photovoltaic panel 11. When the ambient wind energy is greater than the set value, controlling the vibration amplitude of the upstream flexible photovoltaic panel 11 will simultaneously control the vibration amplitude of the remaining flexible photovoltaic panels 11. The installation difficulty and structural complexity of the vibration control device 15 are simplified on the basis of ensuring vibration control, and its specific control method is consistent with the single-span cable structure flexible photovoltaic panel system 1, and the specific details will not be repeated.

[0030] In one embodiment, the blowing mechanism 151 is a synthetic jet exciter. The synthetic jet exciter is light in weight, does not require an air source, has low energy consumption, and can spray high-energy gas, thereby having little impact on the original cable structure flexible photovoltaic panel system 1. Preferably, the synthetic jet exciter is directly powered by the electric energy converted by the cable structure flexible photovoltaic panel system 1. Preferably, the synthetic jet exciter adopts a synthetic dual jet exciter to increase the jet intensity.

[0031] In one of the embodiments, the blowing mechanism 151 is fixedly arranged on one side of the flexible photovoltaic panel 11, and the blowing port 1511 acts on the other side of the flexible photovoltaic panel 11. In this embodiment, the blowing mechanism 151 is directly arranged on the flexible photovoltaic panel 11. When the ambient temperature is zero, the blowing of the blowing mechanism 151 will drive the flexible photovoltaic panel 11 to vibrate, and the blowing port 1511 acts on the other side of the flexible photovoltaic panel 11. The blowing port 1511 can pass through the surface of the flexible photovoltaic panel 11, or the blowing mechanism 151 is arranged on the side of the flexible photovoltaic panel 11, and the blowing port 1511 directly acts on the other side through the side of the flexible photovoltaic panel 11.

[0032] In one embodiment, the vibration control device also includes a sensor 152 for detecting ambient wind energy and ambient wind direction, thereby providing ambient wind energy and ambient wind direction data for the operation of one or more blowing mechanisms 151. Preferably, the sensor 152 adopts a self-powered sensor to reduce energy consumption.

[0033] In one embodiment, a sensor 152 is arranged at each of the four corners of the cable-structured flexible photovoltaic panel system 1. In this embodiment, the sensor 152 can be a wind speed sensor, and the wind direction can be determined based on the wind speed data detected by the four speed sensors, and the ambient wind energy can also be directly obtained.

[0034] The present invention further provides a cable-structured flexible photovoltaic panel system 1 , comprising the vibration control device 15 described above. In one embodiment, the cable-structured flexible photovoltaic panel system 1 further includes a vibration energy collection component 14 disposed between the bracket 12 and the supporting cable 13 in the cable-structured flexible photovoltaic panel system 1. In this embodiment, when the ambient wind energy drives the flexible photovoltaic panel 11 and the supporting cable 13 to vibrate, the vibration energy collection component 14 will collect energy, and when the ambient wind energy is less than a set value or the ambient wind energy is zero, the vibration control device 15 can be combined to ensure the vibration of the supporting cable 13, thereby ensuring the energy collection effect of the vibration energy collection component 14.

[0035] Reference Figure 6 The vibration energy collection component 14 includes an energy collection subunit arranged at the connection between the bracket 12 and the supporting suspension cable 13. The energy collection subunit includes a connecting plate 141 and an energy collection component: the energy collection component includes a PVDF piezoelectric film 142, a metal layer 143, a wire and an environmental magnet 144. A bolt mounting hole 1411 is provided on the connecting plate 141. The connecting plate 141 is fixedly connected to the bracket 12 through the bolt mounting hole 1411 and the bolt fastener. The connecting plate 141 is connected to the energy collection component by welding. The energy collection component includes The structure is composed of two layers, the inner layer is a PVDF piezoelectric film 142, the outer layer is a metal layer 143, an annular magnet 144 is installed at the bottom of the metal layer 143, and an annular magnet 144 in the opposite direction is installed outside the surrounding support cable 13. Specifically, an annular magnet 144 is attached to the outer surface of the support cable 13, and an annular magnet 144 is installed at the bottom of the metal layer 143. The magnetic poles of the two annular magnets 144 are opposite. After the support cable 13 vibrates, one side of the metal layer 143 is deformed by the combined action of the magnet's gravity and repulsive force, generating a voltage output. Figure 7 The flexible photovoltaic panel 11 is overlapped on the supporting cable 13, the supporting cable 13 is wrapped by the energy collection device, the energy collection component is connected to the connecting plate 141 by welding, and the connecting plate is connected to the bracket 12 by bolts.

[0036] When the environmental wind load acts on the supporting cables 13, the supporting cables 13 vibrate, and at the same time, the flexible photovoltaic panel 11 and its support structure will be driven to vibrate. The greater the environmental wind load, the more violent the vibration. Conversely, the vibration of the flexible photovoltaic panel 11 and its support structure will cause the supporting cables 13 connected to it to vibrate. This will be repeated and huge vibration transmission will occur. When the environmental wind load increases further, it will directly have a huge impact on the flexible photovoltaic panel 11, causing its vibration effect to be further superimposed, and the vibration transmission will be more obvious at this time.

[0037] When the supporting cable 13 receives a huge vibration signal, it will vibrate violently. Since both ends of the supporting cable 13 are fixed on the bracket 12, the vibration will eventually be transmitted to the vicinity of the bracket 12. At this time, one end of the metal 143 receives the vibration from the outside and transmits it to the PVDF piezoelectric film 142. The end is forced to vibrate due to inertia, generating a large stress strain on the substrate. The mechanical energy is converted into electrical energy through the PVDF piezoelectric film 142, and a storage circuit is connected near the fixed end bracket 12 to store the energy output by the piezoelectric material, thereby completing the vibration energy collection.

[0038] The present invention also provides a cable structure flexible photovoltaic panel energy collection method, using the cable structure flexible photovoltaic panel system 1, comprising the following steps: The flexible photovoltaic panel 11 absorbs solar energy to collect energy; When the ambient wind energy is greater than the set value, the blowing mechanism 151 is used to inject air fluid into the windward surface of the flexible photovoltaic panel 11, suppress the flow separation on the windward surface of the flexible photovoltaic panel 11, increase the gas flow rate on the windward surface, and reduce the pressure difference on both sides of the flexible photovoltaic panel 11 to suppress the vibration of the flexible photovoltaic panel 11. At the same time, the vibration energy collection component 14 collects energy through the vibration of the supporting cable 13; When the ambient wind energy is less than the set value, the blowing mechanism 151 can be used to inject air fluid into one side of the flexible photovoltaic panel 11, so as to increase the boundary layer velocity difference between the two sides of the flexible photovoltaic panel 11, increase the pressure difference between the two sides of the flexible photovoltaic panel 11 to increase the vibration of the flexible photovoltaic panel 11, and at the same time, the vibration energy collection component 14 collects energy through the vibration of the supporting cable 13.

[0039] When the ambient wind energy is zero, the blowing mechanism 151 can be used to blow air to one side of the flexible photovoltaic panel 11 to drive the flexible photovoltaic panel 11 to vibrate. At the same time, the vibration energy collection component 14 collects energy through the vibration of the supporting cable 13.

[0040] The above is only an embodiment and does not limit the present invention in any way. Any person skilled in the art can use the above disclosed technical contents to make many possible changes, modifications or modifications to the technical solutions of the present invention into equivalent embodiments of equivalent changes without departing from the scope of the technical solutions of the present invention. Therefore, any simple modification, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the scope of protection of the technical solutions of the present invention.

Claims

1. A vibration control device, characterized in that: It comprises an air blowing mechanism (151), wherein the air blowing port (1511) of the air blowing mechanism (151) is arranged toward the panel surface of the flexible photovoltaic panel (11); When the ambient wind energy is greater than a set value, the blowing mechanism (151) is used to inject air fluid into the windward surface of the flexible photovoltaic panel (11), thereby suppressing flow separation on the windward surface of the flexible photovoltaic panel (11), increasing the gas flow rate on the windward surface, and reducing the pressure difference on both sides of the flexible photovoltaic panel (11) to suppress vibration of the flexible photovoltaic panel (11); When the ambient wind energy is less than a set value and greater than zero, the blowing mechanism (151) can be used to inject air fluid into one side of the flexible photovoltaic panel (11), thereby increasing the boundary layer velocity difference between the two sides of the flexible photovoltaic panel (11), and increasing the pressure difference between the two sides of the flexible photovoltaic panel (11) to increase the vibration of the flexible photovoltaic panel (11); When the ambient wind energy is equal to zero, the blowing mechanism (151) can be used to blow air onto one side of the flexible photovoltaic panel (11), thereby driving the flexible photovoltaic panel (11) to vibrate.

2. The vibration control device according to claim 1, wherein In the single-span cable structure flexible photovoltaic panel system (1), at least two blowing mechanisms (151) are arranged, the blowing port (1511) of at least one blowing mechanism (151) is arranged toward the lower side upper panel surface of the flexible photovoltaic panel (11), and the blowing port (1511) of at least another blowing mechanism (151) is arranged toward the higher side lower panel surface of the flexible photovoltaic panel (11).

3. The vibration control device according to claim 1, wherein In the multi-span cable structure flexible photovoltaic panel system (1), at least two blowing mechanisms (151) are arranged, the blowing port (1511) of at least one blowing mechanism (151) is arranged toward the lower side upper panel surface of the head end flexible photovoltaic panel (11), and the blowing port (1511) of at least another blowing mechanism (151) is arranged toward the higher side lower panel surface of the tail end flexible photovoltaic panel (11).

4. The vibration control device according to claim 1, wherein: The blowing mechanism (151) is a synthetic jet actuator.

5. The vibration control device according to claim 4, characterized in that: The air blowing mechanism (151) is fixedly arranged on one side of the flexible photovoltaic panel (11), and the air blowing port (1511) acts on the other side of the flexible photovoltaic panel (11).

6. The vibration control device according to any one of claims 1 to 5, characterized in that: Also included is a sensor (152) for detecting ambient wind energy and ambient wind direction.

7. The vibration control device according to claim 6, characterized in that: One sensor (152) is arranged at each of the four corners of the cable-structured flexible photovoltaic panel system (1).

8. A cable-structured flexible photovoltaic panel system, characterized in that: Comprising a vibration control device as described in any one of claims 1-7.

9. The cable structure flexible photovoltaic panel system according to claim 8, characterized in that: Also included is a vibration energy collection component (14) arranged between a bracket (12) and a supporting suspension cable (13) in a cable-structured flexible photovoltaic panel system.

10. A cable structure flexible photovoltaic panel energy collection method, characterized in that: Using the cable structure flexible photovoltaic panel system as claimed in claim 9 comprises the following steps: The flexible photovoltaic panel (11) absorbs solar energy to collect energy; When the ambient wind energy is greater than a set value, the blowing mechanism (151) is used to inject air fluid into the windward surface of the flexible photovoltaic panel (11), thereby suppressing flow separation on the windward surface of the flexible photovoltaic panel (11), increasing the gas flow rate on the windward surface, and reducing the pressure difference on both sides of the flexible photovoltaic panel (11) to suppress the vibration of the flexible photovoltaic panel (11), while the vibration energy collection component (14) collects energy through the vibration of the supporting suspension cable (13); When the ambient wind energy is less than a set value and greater than zero, the blowing mechanism (151) can be used to inject air fluid into one side of the flexible photovoltaic panel (11), thereby increasing the boundary layer velocity difference between the two sides of the flexible photovoltaic panel (11), increasing the pressure difference between the two sides of the flexible photovoltaic panel (11) to increase the vibration of the flexible photovoltaic panel (11), and at the same time, the vibration energy collection component (14) collects energy through the vibration of the supporting suspension cable (13); When the ambient wind energy is equal to zero, the blowing mechanism (151) can be used to blow air onto one side of the flexible photovoltaic panel (11), thereby driving the flexible photovoltaic panel (11) to vibrate, and at the same time the vibration energy collection component (14) collects energy through the vibration of the supporting suspension cable (13).

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