Floating type photovoltaic power generation device

Abstract

The utility model provides a floating type photovoltaic power generation device, which belongs to the field of photovoltaic power generation equipment on a storage surface, and comprises a free floating type photovoltaic assembly, the free floating type photovoltaic assembly comprises an annular air bag, an integral floating type frame is hinged with the inner side of the annular air bag through an inner hinged support, and a plurality of first photovoltaic panels form a photovoltaic panel mechanism. The photovoltaic panel mechanism is installed on the overall floating type frame, the first photovoltaic panel is electrically connected with the junction station and the inverter in sequence, the junction station and the inverter are installed on the overall floating type frame, the inverter is electrically connected with a transformer on the shore through a cable, and the free floating type photovoltaic assembly is connected with a shore anchor through a plurality of connecting mechanisms. The device can adapt to reservoir basin characteristics of a reservoir, and photovoltaic power generation is carried out by utilizing upper and lower reservoir water surfaces.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic power generation equipment on the reservoir surface, and particularly relates to a floating photovoltaic power generation device. Background Technique

[0002] The solar photovoltaic power generation system has been very mature, which mainly includes solar panels (photovoltaic panels), a controller and an inverter, and is widely used in various industries; especially in the wild where power supply is inconvenient or unavailable, the application of photovoltaic power generation is more common.

[0003] The pumped-storage power station is an energy storage device with power regulation function. Its characteristic is that it has upper and lower reservoirs with different elevations and a large water area. The reservoir of the pumped-storage power station belongs to a reservoir basin formed by building a retaining dam in a mountain depression according to the terrain. Therefore, the reservoir basin has an inverted trapezoidal cross-section with a larger upper part and a smaller lower part due to the shape of the mountain. Using the upper and lower reservoir water surfaces for power generation can not only increase the power generation but also reduce the water evaporation loss caused by partial blocking of sunlight on the water surface. How to make full use of the reservoir surface of the pumped-storage power station to exert greater engineering economic and social benefits is a research topic worthy of study. However, building floating photovoltaic facilities on the pumped-storage reservoir has greater technical difficulties compared with general water surface photovoltaics because of the large water level fluctuation range and the large change in water surface area at the same time of the water level fluctuation. It is necessary to innovate and study the existing technology, and there is no relevant mature technology yet. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a floating photovoltaic power generation device that adapts to the characteristics of the reservoir basin of the reservoir and uses the upper and lower reservoir water surfaces for photovoltaic power generation.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is: a floating photovoltaic power generation device, including a free-floating photovoltaic module. The free-floating photovoltaic module includes an annular airbag. The inner side of the overall floating frame is hinged to the annular airbag through an inner hinge support. A plurality of first photovoltaic panels form a photovoltaic panel mechanism, and the photovoltaic panel mechanism is installed on the overall floating frame. The first photovoltaic panels are electrically connected to a current collector and an inverter in sequence. The current collector and the inverter are installed on the overall floating frame. The inverter is electrically connected to a transformer on the shore through a cable. The free-floating photovoltaic module is connected to a shore anchor through a plurality of connecting mechanisms, and the connecting mechanisms are distributed along the outer circumference of the annular airbag.

[0006] In a preferred solution, the overall floating frame includes multiple groups of walkway boards, and the walkway boards are arranged around the photovoltaic panel mechanism and between two adjacent first photovoltaic panels.

[0007] In a preferred solution, a plurality of spring buffer mechanisms are arranged inside the annular airbag, and the spring buffer mechanisms are arranged at the connection positions between the annular airbag and the overall floating frame. The spring buffer mechanisms include top springs.

[0008] In a preferred embodiment, the buffer mechanism further includes a buffer tube disposed outside the top spring.

[0009] In a preferred embodiment, the walkway plates are connected by a buffer connection mechanism. The buffer connection mechanism includes side baffles, a middle baffle, and side springs. The side baffles are disposed at the ends of the walkway plates. The side baffles are connected to the middle baffle by the side springs, and the inner hinge support is connected to the middle baffle.

[0010] In a preferred embodiment, the connection mechanism is a secondary airbag floating power generation assembly. The secondary airbag floating power generation assembly includes an annular secondary airbag. A bottom plate is disposed inside the inner ring of the annular secondary airbag. A support pad is provided on the upper side of the bottom plate. The second photovoltaic panel is installed on the support pad. The second photovoltaic panel is electrically connected to the current collector. One end of the annular secondary airbag is hinged to the annular airbag through a hinge support, and the other end is connected to the shore anchor through a connecting chain.

[0011] In a preferred embodiment, a plurality of spring buffer mechanisms are disposed inside the annular secondary airbag.

[0012] In a preferred embodiment, a plurality of support sleeve mechanisms are provided on the inner side of the annular secondary airbag. The support sleeve mechanism includes at least two sets of support sleeves sleeved with each other. One end of the support sleeve is provided with a front baffle to seal one end of the support sleeve and leave the other end open. A spring is provided between two adjacent sets of support sleeves. The spring is disposed inside the outer support sleeve and between two adjacent front baffles. The front baffle of the outermost support sleeve is connected to the inner side of the annular secondary airbag, and the end of the innermost support sleeve is connected to the inner side of the annular secondary airbag.

[0013] In a preferred embodiment, an annular sealing gasket is provided on the inner wall of the end of the support sleeve away from the front baffle. The size of the support sleeve is smaller than the size of the corresponding front baffle. The annular sealing gasket of the outer support sleeve limits the front baffle of the adjacent support sleeve sleeved inside it.

[0014] In a preferred embodiment, the bottom plate is connected to the outermost support sleeve of the support sleeve mechanism.

[0015] In a preferred embodiment, a tail baffle is provided at the open end of the innermost support sleeve. The tail baffle is connected to the inner side of the annular secondary airbag.

[0016] In a preferred embodiment, the connection mechanism is a bridge chain connected in series by multiple sections. One end of the bridge chain is hinged to the shore anchor at the top of the reservoir basin, and the other end is hinged to the annular airbag.

[0017] A floating photovoltaic power generation device provided by the present utility model has the following beneficial effects:

[0018] 1. The free-floating photovoltaic module is not anchored and is placed on the pumped-storage power station reservoir in a free-floating state. The free-floating photovoltaic module is in a free-floating state, and the first photovoltaic panel generates electricity. The set auxiliary airbag floating power generation module enables the entire floating photovoltaic power generation device to be suitable for being set in the case of large disturbances of water flow or wind force and other factors on the water surface and rapid water flow. The laying area and power generation amount of the photovoltaic power generation panel are also large, and it can better avoid water evaporation and can adapt to reservoirs with various basin shapes.

[0019] 2. The set bridge chain anchors the free-floating photovoltaic module, making the free-floating photovoltaic module in the central position of the reservoir basin, with good overall stability, ensuring stable power generation and no damage to facilities, and at the same time being able to support the cables.

[0020] 3. The floating photovoltaic power generation device realizes reliable use under the conditions of large water level amplitude change and large water surface area change.

[0021] 4. The utility model designs three different schemes according to the size of water surface disturbance in the case of large water level amplitude change and large water surface area change, and has strong adaptability.

[0022] 5. Because the device structure of the utility model is simple, the installation, disassembly and operation and maintenance are also very simple, without the assistance of large-tonnage cranes, and it has good economy and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0024] Figure 1 It is the installation top view of the floating photovoltaic device of the utility model;

[0025] Figure 2 It is Figure 1 the enlarged view of part A in

[0026] Figure 3 It is Figure 1 the partial cross-sectional view along the B-B plane in

[0027] Figure 4 It is the structural schematic diagram of the support sleeve mechanism;

[0028] In the figure: annular airbag 1; inner hinge support 2; first photovoltaic panel 3; current collector 4; inverter 5; cable 6; transformer 7; integral floating frame 8, walkway board 801, side baffle 802, middle baffle 803, side spring 804; spring buffer mechanism 9, top spring 901, buffer tube 902; shore anchor 10; auxiliary airbag floating power generation assembly 11, annular auxiliary airbag 1101, bottom plate 1102, support pad 1103, second photovoltaic panel 1104, connecting chain 1105, support sleeve 1106, front baffle 1107, spring 1108, annular gasket 1109, tail baffle 1110; bridge chain 12. Detailed implementation manners

[0029] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings.

[0030] A clear and complete description is given. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts belong to the scope protected by the present utility model.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0034] Embodiment 1:

[0035] As Figure 1As shown in the figure, a floating photovoltaic power generation device, a free-floating photovoltaic module, the free-floating photovoltaic module includes an annular airbag 1, and the inner side of the overall floating frame 8 is hinged to the annular airbag 1 through an inner hinge support 2, that is, the overall floating frame 8 is arranged inside the annular airbag 1. A number of first photovoltaic panels 3 form a photovoltaic panel mechanism, and the photovoltaic panel mechanism is installed on the overall floating frame 8. The first photovoltaic panels 3 are electrically connected to a current collector 4 and an inverter 5 in sequence. The current collector 4 and the inverter 5 are installed on the overall floating frame 8. The inverter 5 is electrically connected to a transformer 7 on the shore through a cable 6. The first photovoltaic panels 3 generate photovoltaic power. After the current generated by the first photovoltaic panels 3 is converged, the direct current is converted into alternating current by the inverter 5, and then transmitted to the shore through the cable 6, and then stepped up by the transformer 7 for long-distance transmission or use. The free-floating photovoltaic module is connected to a shore anchor 10 through a number of connecting mechanisms, and the connecting mechanisms are distributed along the outer circumference of the annular airbag 1.

[0036] Since the free-floating photovoltaic module has no anchor point to hang on, and is placed on the pumped-storage power station reservoir in a free-floating state, it may collide with or contact the reservoir basin wall due to water surface flow or wind blowing. Therefore, compared with other embodiments of this patent, this free-floating photovoltaic module is applicable to the situation where the water surface areas at the highest and lowest water levels of the reservoir basin are not very different, the water surface is less disturbed by water flow and wind, and is basically in a static state.

[0037] Preferably, the overall floating frame 8 includes multiple groups of walkway plates 801, and the walkway plates 801 are arranged around the photovoltaic panel mechanism and between two adjacent first photovoltaic panels 3.

[0038] The overall floating frame 8 formed by the walkway plates 801 is arranged on the annular airbag 1, which can effectively bear the weight of the photovoltaic panel power generation device. Adjacent walkway plates 801 are jointly connected to the inner side of the annular airbag 1 through the inner hinge support 2 to form a whole, that is, at the corners of the walkway plates 801, they are reliably connected to the inner side of the airbag through the inner hinge support 2, so that the overall floating frame 8 and the annular airbag 1 form a whole.

[0039] Preferably, as Figure 2 shown, a number of spring buffer mechanisms 9 are arranged inside the annular airbag 1, and the spring buffer mechanisms 9 are arranged at the positions where the annular airbag 1 is connected to the overall floating frame 8. The spring buffer mechanism 9 includes a top spring 901. The buffer mechanism 9 further includes a buffer tube 902, and the buffer tube 902 is arranged outside the top spring 901. The buffer tube 902 is a flexible tube structure and plays a role in limiting the top spring 901.

[0040] Preferably, as Figure 2As shown, the walkway plates 801 are connected by a buffer connection mechanism. The buffer connection mechanism includes side baffles 802, middle baffles 803, and side springs 804. The side baffles 802 are arranged at the ends of the walkway plates 801. The side baffles 802 are connected to the middle baffles 803 through the side springs 801, and the inner hinge supports 2 are connected to the middle baffles 803.

[0041] This component ensures that the photovoltaic panels are not damaged by collision through a multi-stage buffering method. On the one hand, the peripheral annular airbag 1 can not only form effective buoyancy but also form good airbag buffering, playing a preliminary shock-absorbing effect. A spring buffering mechanism 9 is also arranged in the airbag connected by the inner hinge supports 2, playing a further shock-absorbing effect. The spring buffering mechanism 9 is a structure with a top spring inside a hose. The top spring can effectively cooperate with the annular airbag 1 to form a further buffering effect. On the other hand, a buffer connection mechanism is arranged at the connection end where the docking walkway plates form an overall walkway plate frame structure. By arranging the side spring 804 between the middle baffle 803 and the side baffle 802, part of the impact force can be dissipated through the annular airbag 1 and the spring buffering mechanism 9 and then transmitted to the overall floating frame 8 through the inner hinge supports 2. By arranging the buffer connection mechanism between the walkway plates 801, a further energy dissipation and buffering effect is achieved, ensuring the reliable operation of the photovoltaic panels in case of collision. The walkway plates 801 between the adjacent inner boundaries of each first photovoltaic panel 3 can be equipped with airbags to assist in buoyancy supplement and operation and maintenance through the walkway.

[0042] When the water surface areas at the highest and lowest water levels of the reservoir basin are very large, the slopes of the reservoir basin are irregular and differ greatly from a circle, a connection mechanism is set to anchor the free-floating photovoltaic module, forming a reliable connection with the shore anchor 10, so that the position of the free-floating photovoltaic module is relatively fixed at the center of the water surface.

[0043] Embodiment 2:

[0044] In this embodiment, as Figure 1 and 3 shown, the connection mechanism is a secondary airbag floating power generation module 11. The secondary airbag floating power generation module 11 includes an annular secondary airbag 1101. A bottom plate 1102 is arranged inside the annular secondary airbag 1101. A support pad 1103 is arranged on the upper side of the bottom plate 1102. The second photovoltaic panel 1104 is installed on the support pad 1103. The second photovoltaic panel 1104 is electrically connected to the current collector 4. One end of the annular secondary airbag 1101 is hinged to the annular airbag 1 through a hinge support, and the other end is connected to the shore anchor 10 through a connecting chain 1105.

[0045] The second photovoltaic panel 1104 is electrically connected to the current collector 4 and the inverter 5. The secondary airbag floating power generation module 11 can also be provided with a single set of current collector 4 and inverter 5 without sharing with the free-floating photovoltaic module.

[0046] Preferably, a plurality of spring buffer mechanisms 9 are arranged in the annular auxiliary airbag 1101. The spring buffer mechanism 9 can effectively cooperate with the annular auxiliary airbag 1101 to form a further buffering effect. The spring buffer mechanism 9 can be arranged in the annular auxiliary airbag 1101 in a horizontal direction, a vertical direction or an arbitrary swing angle, so that when the free-floating photovoltaic module is stretched, the buffer tube 902 and the top spring 901 form an effective buffer, and keep the overall structural deformation of the annular auxiliary airbag 1101 within the design allowable range.

[0047] Preferably, Figure 4 As shown, a plurality of support sleeve mechanisms are provided on the inner side of the annular auxiliary airbag 1101, and the support sleeve mechanisms include at least two groups of support sleeves 1106 which are sleeved with each other, and a front baffle 1107 is provided at one end of the support sleeve 1106 so that one end of the support sleeve 1106 is closed and the other end is open, and a spring 1108 is provided between two adjacent groups of support sleeves 1106, and the spring 1108 is arranged in the outer support sleeve 1106 and between two adjacent groups of front baffles 1107, the front baffle 1107 of the outermost support sleeve 1106 is connected to the inner side of the annular auxiliary airbag 1101, and the end of the innermost support sleeve 1106 is connected to the inner side of the annular auxiliary airbag 1101.

[0048] During specific use, the bottom plate 1102 is connected to the outermost support sleeve 1106 of the support sleeve mechanism, which does not affect the elastic deformation of the annular auxiliary airbag 1101.

[0049] Preferably, an annular sealing gasket 1109 is provided on the inner wall of one end of the support sleeve 1106 away from the front baffle 1107, and the size of the support sleeve 1106 is smaller than the size of the corresponding front baffle 1107. The annular sealing gasket 1109 of the outer support sleeve 1106 limits the front baffle 1107 of the adjacent support sleeve 1106 sleeved on the inner side thereof.

[0050] The inner support sleeve 1106 can press against the annular sealing gasket 1109 under the thrust of the spring 1108 without falling off the outer support sleeve 1106 .

[0051] Preferably, the opening end of the innermost support sleeve 1106 is provided with a tail baffle 1110, which is connected to the inner side of the annular auxiliary airbag 1101 to facilitate the connection with the annular auxiliary airbag 1101. The connection method can be an articulated connection or a fixed connection.

[0052] When used specifically, the following steps are included:

[0053] Step 1. Installation of free-floating photovoltaic modules: Assemble and debug the free-floating photovoltaic modules in the installation site set on the top platform of the reservoir basin. Then, when the water level in the reservoir basin is at the highest level, use a winch to pull and slide the free-floating photovoltaic modules along the slideway set on the slope to the water surface; complete the assembly of the connection mechanism connected to the free-floating photovoltaic modules in the installation site set on the top platform of the reservoir basin.

[0054] Step 2. Installation of the connection mechanism: First, connect one end of the connection mechanism to the shore anchor 10, then slide the connection mechanism along the slideway to the water surface, and then connect the other end of the connection mechanism to the annular airbag 1. The connection mechanism selects the auxiliary airbag floating power generation module 11.

[0055] Step 3. Installation of cables: Arrange the cable 6 along the connection mechanism, and the cable 6 is electrically connected to the transformer 7 set on the top platform of the reservoir basin.

[0056] Step 4. Equipment debugging and operation: After debugging the equipment, put it into operation. The first photovoltaic panel 3 generates electricity. After the current generated by the first photovoltaic panel 3 is converged, the direct current is converted into alternating current by the inverter 5, and then transmitted to the shore through the cable 6, and then stepped down by the transformer 7 for long-distance transmission or use; when the reservoir basin is at the highest water level and the maximum water surface area, the free-floating photovoltaic modules are in the center of the reservoir basin water level. One end of the connection mechanism is hung on the edge of the free-floating photovoltaic modules in a floating state, and the other end is hung on the shore anchor 10 on the top of the reservoir basin; when the reservoir basin is at the lowest water level and the minimum water surface area, the free-floating photovoltaic modules are still in the center of the reservoir basin water surface under the traction of the connection mechanism, and the connection mechanism forms different angles with the shore slope at different water levels.

[0057] When the reservoir basin is at the lowest water level and the minimum water surface area, the free-floating photovoltaic modules are set according to the small water surface area corresponding to the low water level. The free-floating photovoltaic modules basically fill the water surface. Since one end of the auxiliary airbag floating power generation module 11 is hinged to the shore anchor 10 set on the reservoir top platform and the other end is hinged to the free-floating photovoltaic modules, the length of the annular auxiliary airbag 1101 of the auxiliary airbag floating power generation module 11 in the longitudinal direction is the longest when the water level is the lowest. Under the traction of the auxiliary airbag floating power generation modules 11 in all directions, the free-floating photovoltaic modules can just be basically in the middle of the reservoir basin at each water level, so as to achieve the best lighting and power generation effects. At this time, the auxiliary airbag floating power generation module 11 is basically close to the hillside.

[0058] When the water level slowly rises, the length of the annular auxiliary airbag 1101 of the auxiliary airbag floating power generation module 11 in the direction of the hillside also gradually becomes smaller, and the auxiliary airbag floating power generation module 11 also slowly moves away from the hillside. However, due to the reasonable calculation and design of each auxiliary airbag floating power generation module 11 according to the slope of the hillside where it is located, it can still ensure that the free-floating photovoltaic modules can maintain the position in the center of the reservoir basin at each water level.

[0059] When the water level is at the highest level and the water surface area is the largest, each secondary airbag floating power generation component 11 is in the same horizontal state of floating on the water surface as the free-floating photovoltaic module. The support sleeve mechanism is designed at any angle within the secondary airbag floating power generation component 11. Through the personalized design of each secondary airbag floating power generation component 11, it can not only keep the floating photovoltaic module in the center of the reservoir basin at various water levels, but also, in combination with the various shapes of the reservoir basin, at the highest water level condition, each part of the secondary airbag floating power generation component 11 forms a horizontal oval or a longitudinal oval or an oblique oval under the action of the support sleeve mechanism in the floating horizontal state, so as to maximize the filling of the water surface and achieve the effects of maximizing power generation and reducing evaporation.

[0060] During operation, inspections and repairs are carried out by personnel walking along the walkway set on the reservoir bank slope. Personnel board the photovoltaic facilities from a small boat set on the water surface for daily maintenance and repair.

[0061] This device is suitable for being set in the case where the water surface is greatly disturbed by factors such as water flow or wind, and the water flow is rapid. The laying area and power generation amount of the photovoltaic panels are also large, and it can better avoid the evaporation of water volume, and can adapt to reservoirs with various reservoir basin shapes.

[0062] Embodiment 3:

[0063] Different from Embodiment 2, in this embodiment, the connecting mechanism is a multi-section series-connected bridge chain 12. One end of the bridge chain 12 is hinged to the shore anchor 10 at the top of the reservoir basin, and the other end is hinged to the annular airbag 1. The cable 6 for electrically connecting the inverter 5 and the transformer 7 is arranged along the bridge chain 12 to support the cable 6.

[0064] When the difference in the water surface area between the highest and lowest water levels in the reservoir basin is not large, but the water surface is greatly disturbed by water flow and wind, in order to ensure stable power generation and prevent damage to the facilities, this device can be adopted.

[0065] During specific use, it includes the following steps:

[0066] Step 1. Installation of the free-floating photovoltaic module: Assemble and debug the free-floating photovoltaic module in the installation site set on the top platform of the reservoir basin, and then, when the water level in the reservoir basin is at the highest level, use a winch to pull and slide the free-floating photovoltaic module along the slideway set on the slope to the water surface; complete the assembly of the connecting mechanism connected to the free-floating photovoltaic module in the installation site set on the top platform of the reservoir basin;

[0067] Step 2. Installation of the connecting mechanism: First, connect one end of the connecting mechanism to the shore anchor 10, then slide the connecting mechanism along the slideway to the water surface, and then connect the other end of the connecting mechanism to the annular airbag 1; the connecting mechanism is selected as the bridge chain 12.

[0068] Step 3. Install the cable: Arrange the cable 6 along the connecting mechanism, and the cable 6 is electrically connected to the transformer 7 arranged on the top platform of the reservoir basin.

[0069] Step 4. Equipment debugging and operation: After debugging the equipment, put it into operation. The first photovoltaic panel 3 generates photovoltaic power. After the current generated by the first photovoltaic panel 3 is converged, the direct current is converted into alternating current through the inverter 5, and then transmitted to the shore through the cable 6, and then stepped down by the transformer 7 for long-distance transmission or use; when the reservoir basin is at the highest water level and the maximum water surface area, the free-floating photovoltaic module is in the center of the reservoir basin water level. One end of the connecting mechanism is hung on the edge of the free-floating photovoltaic module in a floating state, and the other end is hung on the shore anchor 10 on the top of the reservoir basin; when the reservoir basin is at the lowest water level and the minimum water surface area, the free-floating photovoltaic module is still in the center of the reservoir basin water surface under the traction of the connecting mechanism, and the connecting mechanism forms different angles with the shore slope at different water levels.

[0070] When the reservoir basin is at the highest water level and the maximum water surface area, the free-floating photovoltaic module is in the center of the reservoir basin water level. Each bridge chain 12 is hung on the edge of the free-floating photovoltaic module in a floating state at one end, and hung on the shore anchor 10 on the top of the reservoir basin at the other end; when the reservoir basin is at the lowest water level and the minimum water surface area, the free-floating photovoltaic module is still in the center of the reservoir basin water surface under the traction of the bridge chains 12 with different lengths designed in advance. The bridge chains 12 are in a state of fitting the shore slope. At different water levels, the free-floating photovoltaic module is in the center of the reservoir water surface, and the bridge chains 12 form different angles with the shore slope at different water levels.

[0071] During the operation process, inspections and repairs are carried out by personnel walking along the walkway set on the reservoir bank, and personnel board the photovoltaic facilities through small boats set on the water surface for daily maintenance and repair.

[0072] The device of this embodiment is suitable for being set in the case where the water surface is greatly disturbed by factors such as water flow or wind, and the water flow is rapid, and the overall stability is good.

[0073] The above embodiments are only the preferred technical solutions of the present invention, and should not be regarded as a limitation to the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. That is, the equivalent replacement improvements within this range are also within the protection scope of the present invention.

Claims

1. A floating photovoltaic power generation device, characterized in that: The invention comprises a free-floating photovoltaic assembly, wherein the free-floating photovoltaic assembly comprises an annular airbag (1), an integral floating frame (8) is hinged to the inner side of the annular airbag (1) via an inner hinge support (2), a plurality of first photovoltaic panels (3) form a photovoltaic panel mechanism, the photovoltaic panel mechanism is mounted on the integral floating frame (8), the first photovoltaic panels (3) are electrically connected to a collector (4) and an inverter (5) in sequence, the collector (4) and the inverter (5) are mounted on the integral floating frame (8), the inverter (5) is electrically connected to a transformer (7) on the shore via a cable (6), and the free-floating photovoltaic assembly is connected to a shore anchor (10) via a plurality of connection mechanisms, the connection mechanisms being distributed along the outer circumference of the annular airbag (1).

2. A floating photovoltaic power generation device according to claim 1, characterized in that: The integral floating frame (8) comprises a plurality of groups of walkway panels (801), wherein the walkway panels (801) are arranged at the periphery of the photovoltaic panel mechanism and between two adjacent groups of first photovoltaic panels (3).

3. A floating photovoltaic power generation device according to claim 1, characterized in that: A plurality of spring buffer mechanisms (9) are provided in the annular airbag (1). The spring buffer mechanisms (9) are arranged at the position where the annular airbag (1) is connected to the overall floating frame (8). The spring buffer mechanisms (9) include a top spring (901).

4. A floating photovoltaic power generation device according to claim 3, characterized in that: The buffer mechanism (9) further comprises a buffer tube (902), wherein the buffer tube (902) is arranged outside the top spring (901).

5. A floating photovoltaic power generation device according to claim 2, characterized in that: The walkway plates (801) are connected to each other via a buffer connection mechanism, which comprises a side baffle plate (802), a middle baffle plate (803) and a side spring (804); the side baffle plate (802) is arranged at the end of the walkway plate (801); the side baffle plate (802) is connected to the middle baffle plate (803) via the side spring (804); and the inner hinge support (2) is connected to the middle baffle plate (803).

6. A floating photovoltaic power generation device according to claim 5, characterized in that: The connection mechanism is a secondary airbag floating power generation assembly (11), the secondary airbag floating power generation assembly (11) comprising an annular secondary airbag (1101), a bottom plate (1102) being arranged in the inner ring of the annular secondary airbag (1101), a support pad (1103) being arranged on the upper side of the bottom plate (1102), a second photovoltaic panel (1104) being mounted on the support pad (1103), the second photovoltaic panel (1104) being electrically connected to the concentrator (4), one end of the annular secondary airbag (1101) being hinged to the annular airbag (1) via a hinge support, and the other end being connected to the shore anchor (10) via a connecting chain (1105).

7. A floating photovoltaic power generation device according to claim 6, characterized in that: A plurality of spring buffer mechanisms (9) are arranged in the annular auxiliary airbag (1101).

8. A floating photovoltaic power generation device according to claim 6, characterized in that: A plurality of support sleeve mechanisms are provided on the inner side of the annular auxiliary airbag (1101), the support sleeve mechanisms comprising at least two groups of support sleeves (1106) sleeved together, one end of the support sleeve (1106) being provided with a front baffle (1107) so that one end of the support sleeve (1106) is closed and the other end is open, a spring (1108) is provided between two adjacent groups of support sleeves (1106), the spring (1108) being arranged in the outer support sleeve (1106) and between two adjacent groups of front baffles (1107), the front baffle (1107) of the outermost support sleeve (1106) being connected to the inner side of the annular auxiliary airbag (1101), and the end of the innermost support sleeve (1106) being connected to the inner side of the annular auxiliary airbag (1101).

9. A floating photovoltaic power generation device according to claim 8, characterized in that: An annular sealing gasket (1109) is provided on the inner wall of one end of the support sleeve (1106) away from the front baffle (1107); the size of the support sleeve (1106) is smaller than the size of the corresponding front baffle (1107); the annular sealing gasket (1109) of the outer support sleeve (1106) limits the front baffle (1107) of the adjacent support sleeve (1106) sleeved on the inner side thereof.

10. A floating photovoltaic power generation device according to claim 9, characterized in that: The bottom plate (1102) is connected to the outermost support sleeve (1106) of the support sleeve mechanism.

11. A floating photovoltaic power generation device according to claim 10, characterized in that: The opening end of the innermost support sleeve (1106) is provided with a tail baffle (1110), and the tail baffle (1110) is connected to the inner side of the annular auxiliary airbag (1101).

12. A floating photovoltaic power generation device according to claim 1, characterized in that: The connection mechanism is a bridge chain (12) with multiple sections connected in series, one end of the bridge chain (12) is hinged to the shore anchor (10) at the top of the reservoir basin, and the other end is hinged to the annular airbag (1).

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