Novel self-balancing floating type photovoltaic system

Abstract

The utility model discloses a novel self-balancing floating type photovoltaic system, which comprises a first floating body structure, a second floating body structure and a photovoltaic panel assembly, and is characterized in that the first floating body structure and the second floating body structure respectively comprise a supporting base, a first spring, a second spring and a supporting frame; one end of the supporting base is connected with one end of the supporting frame through the first spring, the upper end of the first spring is fixedly connected with the supporting frame, and the lower end of the first spring is fixedly connected with the supporting base. The other end of the supporting base is connected with the other end of the supporting frame through the second spring, the upper end of the second spring is fixedly connected with the supporting frame, and the lower end of the second spring is fixedly connected with the supporting base; according to the utility model, the power generation efficiency can be maximized, the stability and the safety of the whole system are ensured, and the efficiency and the reliability of the whole system are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic environmental protection equipment, and specifically relates to a novel self-balancing floating photovoltaic system. Background Art

[0002] At present, the vast majority of floating PV projects in operation are located in inland freshwater environments. However, as experience in deploying PV in water bodies accumulates and costs decrease, the floating PV industry has shown a trend of expanding into the ocean. Offshore PV systems install solar panels on a floating structure and fix their position through an anchoring system. The electricity generated by the system is transmitted to the grid by cables. Compared with floating offshore platforms and floating wind power, offshore PV systems have fewer equipment and simpler structures from an engineering perspective. The floating structure provides support and buoyancy for the PV panels and their supporting systems, allowing the system to float on the sea surface. Currently, they are mainly divided into the following three categories: (1) rigid structure + rigid module; (2) flexible structure + rigid module; (3) flexible structure + flexible module.

[0003] Rigid floating structures have high strength, long life, wide adaptability to sea areas, good structural strength and buoyancy, and are currently widely used in freshwater. However, rigid floating structures designed for the ocean need to withstand greater forces in connectors and mooring cables than in freshwater environments, which means more optimized structural design and higher material costs. Rigid structures can also support tilted photovoltaic panels, oriented at the optimal tilt angle, but wind loads increase with the tilt of the panels, which means that floating structures need to be larger in size in order to withstand higher loads. Therefore, the design of existing rigid structures will affect the performance of the system. The floating structure will swing, roll, and yaw with the waves under the action of environmental loads such as wind, waves and currents at sea, resulting in the photovoltaic panels not being at the optimal tilt angle and thus unable to obtain the most effective power generation.

[0004] Flexible (mostly thin films) floating structures achieve the transmission of force and motion through the deformation of elastic bodies and have low wave energy interaction, thereby reducing mooring loads. They are low-cost, easy to install, and suitable for development in sheltered sea areas. Flexible structures also benefit from the natural cooling brought about by direct contact with the water surface. However, due to the flexible characteristics of flexible structures, photovoltaic modules can often only be spread flat on the structure and cannot be oriented at the optimal tilt angle. Therefore, the flexible structure's ability to resist wind and waves is lower than that of rigid structures, and its durability is also relatively low.

[0005] Therefore, the current design of offshore photovoltaic systems cannot ensure the stability of the angle and displacement of photovoltaic panels under environmental loads such as wind, waves and currents, resulting in the photovoltaic panels being unable to achieve maximum power generation and having relatively low durability. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a new self-balancing floating photovoltaic system, which can effectively solve the problem that the existing technology cannot ensure the stability of the angle and displacement of the photovoltaic panels under environmental loads such as wind, waves and currents, resulting in the photovoltaic panels being unable to obtain the maximum power generation and having relatively low durability.

[0007] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0008] A novel self-balancing floating photovoltaic system comprises a first floating structure, a second floating structure and a photovoltaic panel assembly connected between the first floating structure and the second floating structure, wherein the first floating structure and the second floating structure each comprise a supporting base, a first spring, a second spring and a supporting frame, wherein one end of the supporting base is connected to one end of the supporting frame via the first spring, the upper end of the first spring is fixedly connected to the supporting frame, the lower end of the first spring is fixedly connected to the supporting base, the other end of the supporting base is connected to the other end of the supporting frame via the second spring, the upper end of the second spring is fixedly connected to the supporting frame, and the lower end of the second spring is fixedly connected to the supporting base.

[0009] As a preferred embodiment of the present invention, the photovoltaic panel assembly includes multiple main beams, multiple purlins and photovoltaic panels, the multiple main beams are evenly spaced, one end of the main beam is fixedly connected to the support frame of the first floating structure, the other end of the main beam is fixedly connected to the support frame of the second floating structure, the purlin is fixedly connected between two of the main beams, and the photovoltaic panel is fixed on the purlin.

[0010] As a preferred solution of the utility model, the support base includes a first vertical rod, a second vertical rod and a first cross rod, the first cross rod is connected between the first vertical rod and the second vertical rod, and the first vertical rod and the second vertical rod are provided with through holes for the support frame to extend into.

[0011] As a preferred embodiment of the present invention, the support frame includes a third vertical rod, a fourth vertical rod, a second cross rod, a first hydraulic rod and a second hydraulic rod, the first hydraulic rod is fixed on the first spring, a power output end of the first hydraulic rod is connected to the third vertical rod, the second hydraulic rod is fixed on the second spring, a power output end of the second hydraulic rod is connected to the fourth vertical rod, and the second cross rod is connected between the third vertical rod and the fourth vertical rod.

[0012] As a preferred embodiment of the present invention, the support frame includes a third vertical rod, a fourth vertical rod, a second cross rod, a first linear drive and a second linear drive. The lower end of the third vertical rod is fixedly connected to the first spring, the lower end of the first linear drive is rotatably connected to the third vertical rod, the upper end of the first linear drive is rotatably connected to one end of the second cross rod, the lower end of the fourth vertical rod is fixedly connected to the second spring, the lower end of the second linear drive is rotatably connected to the fourth vertical rod, the upper end of the second linear drive is rotatably connected to the other end of the second cross rod, and a telescopic rod for supporting the photovoltaic panel assembly is provided between the two support bases.

[0013] As a preferred solution of the utility model, the upper end of the first vertical rod is provided with a first limiter for limiting the rotation angle of the first linear drive, and the upper end of the second vertical rod is provided with a second limiter for limiting the rotation angle of the second linear drive.

[0014] As a preferred solution of the present utility model, the first limiting member and the second limiting member are both configured to be funnel-shaped.

[0015] As a preferred solution of the utility model, a first diagonal brace and a second diagonal brace are provided between the first vertical rod and the second vertical rod, and the first diagonal brace and the second diagonal brace are arranged in a staggered manner.

[0016] As a preferred solution of the utility model, a buoyancy block is connected to the support base.

[0017] As a preferred solution of the present utility model, the support base is made of steel pipe material.

[0018] The novel self-balancing floating photovoltaic system provided by the utility model has the following beneficial effects compared with the prior art:

[0019] (1) Due to the arrangement of the first spring and the second spring, the photovoltaic panel assembly arranged on the supporting frame can be automatically and flexibly adjusted according to different environmental conditions and requirements, so as to maximize the use and collection of sunlight to achieve maximum power generation efficiency;

[0020] (2) Due to the arrangement of the first spring and the second spring, the photovoltaic panel assembly can be buffered under environmental loads such as wind, waves and currents, thereby effectively improving the displacement and angle stability of the photovoltaic panel assembly, effectively resisting the impact of waves and wind on the photovoltaic assembly, and ensuring the stability and safety of the entire system;

[0021] (3) It can control the operating status of the photovoltaic system, thereby improving the efficiency and reliability of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0023] Figure 1 This is a structural schematic diagram of a novel self-balancing floating photovoltaic system provided in the first embodiment of the present utility model;

[0024] Figure 2 It is a structural diagram of the support base;

[0025] Figure 3 It is a structural diagram of the supporting frame;

[0026] Figure 4 It is a schematic diagram of the structure of the photovoltaic panel assembly (the photovoltaic panel is not installed);

[0027] Figure 5 It is a schematic diagram of the structure of a photovoltaic panel assembly;

[0028] Figure 6 This is a structural schematic diagram of a novel self-balancing floating photovoltaic system provided in the second embodiment of the present utility model;

[0029] Figure 7 This is a structural schematic diagram of a novel self-balancing floating photovoltaic system in a first working condition provided by Embodiment 2 of the present utility model;

[0030] Figure 8 It is a structural schematic diagram of a novel self-balancing floating photovoltaic system in a second working condition provided by the second embodiment of the present utility model.

[0031] Markings in the figure:

[0032] A first floating structure 100; a second floating structure 200; a photovoltaic panel assembly 300; a main beam 301; a purlin 302; a photovoltaic panel 303; a support base 400; a first vertical rod 401; a second vertical rod 402; a first cross rod 403; a through hole 404; a first diagonal brace 405; a second diagonal brace 406; a first spring 500; a second spring 600; a support frame 700; a third vertical rod 701; a fourth vertical rod 702; a second cross rod 703; a first hydraulic rod 704; a second hydraulic rod 705; a first linear drive 706; a second linear drive 707; a first limit member 708; a second limit member 709. DETAILED DESCRIPTION

[0033] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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 therefore cannot be understood as a limitation on the present utility model. It should be understood that the terms "first", "second", etc. are used in the present utility model to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information.

[0035] like Figure 1 As shown, a preferred embodiment of the utility model provides a novel self-balancing floating photovoltaic system, which includes a first floating structure 100, a second floating structure 200 and a photovoltaic panel assembly 300 connected between the first floating structure 100 and the second floating structure 200, the first floating structure 100 and the second floating structure 200 both include a support base 400, a first spring 500, a second spring 600 and a support frame 700, one end of the support base 400 is connected to one end of the support frame 700 through the first spring 500, the upper end of the first spring 500 is fixedly connected to the support frame 700, the lower end of the first spring 500 is fixedly connected to the support base 400, the other end of the support base 400 is connected to the other end of the support frame 700 through the second spring 600, the upper end of the second spring 600 is fixedly connected to the support frame 700, and the lower end of the second spring 600 is fixedly connected to the support base 400.

[0036] The preferred embodiment of the utility model provides a novel self-balancing floating photovoltaic system, which has the following advantages:

[0037] (1) Due to the arrangement of the first spring 500 and the second spring 600, the photovoltaic panel assembly 300 arranged on the support frame 700 can be automatically and flexibly adjusted according to different environmental conditions and requirements, and the sunlight is utilized and collected to the maximum extent to achieve the maximum power generation efficiency;

[0038] (2) Due to the arrangement of the first spring 500 and the second spring 600, the photovoltaic panel assembly 300 can be buffered under environmental loads such as wind, waves and currents, thereby effectively improving the displacement and angle stability of the photovoltaic panel assembly 300, effectively resisting the impact of waves and wind on the photovoltaic assembly, and ensuring the stability and safety of the entire system;

[0039] (3) It can control the operating status of the photovoltaic system, thereby improving the efficiency and reliability of the entire system.

[0040] Specifically, Figures 4 to 5 As shown, in order to ensure the structural stability of the photovoltaic panel assembly 300, the photovoltaic panel assembly 300 includes a plurality of main beams 301, a plurality of purlins 302 and photovoltaic panels 303. The plurality of main beams 301 are evenly spaced, one end of the main beam 301 is fixedly connected to the support frame 700 of the first floating structure 100, and the other end of the main beam 301 is fixedly connected to the support frame 700 of the second floating structure 200. The purlin 302 is fixedly connected between the two main beams 301, and the photovoltaic panel 303 is fixed on the purlin 302.

[0041] In addition, in this embodiment, the plane of the photovoltaic panel assembly 300 is a quadrilateral structure, and the photovoltaic systems are all single independent modules. When the photovoltaic area needs to be expanded, efficient area utilization can be achieved by directly connecting multiple photovoltaic systems seamlessly, thereby conveniently and efficiently expanding the area of ​​the photovoltaic system.

[0042] For example, Figure 2 As shown, the support base 400 includes a first vertical rod 401, a second vertical rod 402 and a first cross rod 403, the first cross rod 403 is connected between the first vertical rod 401 and the second vertical rod 402, and the first vertical rod 401 and the second vertical rod 402 are provided with through holes 404 for the support frame 700 to extend into.

[0043] In one embodiment provided by the present utility model, Figure 2 As shown, the support frame 700 includes a third vertical rod 701, a fourth vertical rod 702, a second cross bar 703, a first hydraulic rod 704 and a second hydraulic rod 705. The first hydraulic rod 704 is fixed on the first spring 500, and the power output end of the first hydraulic rod 704 is connected to the third vertical rod 701. The second hydraulic rod 705 is fixed on the second spring 600, and the power output end of the second hydraulic rod 705 is connected to the fourth vertical rod 702. The second cross bar 703 is connected between the third vertical rod 701 and the fourth vertical rod 702. Therefore, when the photovoltaic system is heaving under the action of waves, the spring and the hydraulic rod can cooperate to slow down the movement of the support frame 700, thereby slowing down the displacement effect of the photovoltaic panel assembly 300 located at the upper part, avoiding damage to the photovoltaic panel assembly 300 caused by violent movement, and ensuring power generation efficiency.

[0044] In another embodiment provided by the present utility model, Figure 6As shown, the support frame 700 includes a third vertical rod 701, a fourth vertical rod 702, a second cross rod 703, a first linear drive 706 and a second linear drive 707, the lower end of the third vertical rod 701 is fixedly connected to the first spring 500, the lower end of the first linear drive 706 is rotatably connected to the third vertical rod 701, the upper end of the first linear drive 706 is rotatably connected to one end of the second cross rod 703, the lower end of the fourth vertical rod 702 is fixedly connected to the second spring 600, the lower end of the second linear drive 707 is rotatably connected to the fourth vertical rod 702, the upper end of the second linear drive 707 is rotatably connected to the other end of the second cross rod 703, and a telescopic rod for supporting the photovoltaic panel assembly 300 is provided between the two support bases 400. Therefore, when the photovoltaic system is swaying under the action of waves, the first linear drive 706 and the second linear drive 707 can enable the photovoltaic panel assembly 300 to achieve three-dimensional movement, and the adjustment is more flexible. The spring can also slow down the movement of the support frame 700, thereby slowing down the rotation angle and displacement of the photovoltaic panel assembly 300 located at the top, thereby ensuring the power generation efficiency.

[0045] Specifically, Figures 7 and 8 As shown, when the maximum horizontal load component of the wind and wave current acts on the photovoltaic system to the right, the photovoltaic panel assembly 300 moves to the left; when the maximum horizontal load component of the wind and wave current acts on the photovoltaic system to the left, the photovoltaic panel assembly 300 moves to the right.

[0046] Exemplarily, in order to prevent the photovoltaic panel 303 from having an excessively large rotation range, a first limit member 708 for limiting the rotation angle of the first linear drive 706 is provided at the upper end of the first vertical rod 401, and a second limit member 709 for limiting the rotation angle of the second linear drive 707 is provided at the upper end of the second vertical rod 402. Both the first limit member 708 and the second limit member 709 are configured to be funnel-shaped.

[0047] Exemplarily, a first diagonal brace 405 and a second diagonal brace 406 are disposed between the first vertical rod 401 and the second vertical rod 402, and the first diagonal brace 405 and the second diagonal brace 406 are arranged in a staggered manner. Thus, the X-shaped arrangement can reinforce the support base 4004 and improve the overall rigidity of the system.

[0048] Exemplarily, the support base 400 is made of steel pipe material, and the steel pipe is a watertight structure, which can provide a certain buoyancy in seawater. Of course, if the buoyancy of the photovoltaic system is insufficient, the buoyancy can be increased by connecting a buoyancy block to the support base 400.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A new self-balancing floating photovoltaic system, characterized in that: A first floating structure, a second floating structure, and a photovoltaic panel assembly connected between the first floating structure and the second floating structure, the first floating structure and the second floating structure each include a support base, a first spring, a second spring, and a support frame, one end of the support base is connected to one end of the support frame via the first spring, the upper end of the first spring is fixedly connected to the support frame, the lower end of the first spring is fixedly connected to the support base, the other end of the support base is connected to the other end of the support frame via the second spring, the upper end of the second spring is fixedly connected to the support frame, and the lower end of the second spring is fixedly connected to the support base.

2. A novel self-balancing floating photovoltaic system according to claim 1, characterized in that: The photovoltaic panel assembly includes multiple main beams, multiple purlins and photovoltaic panels. The multiple main beams are arranged at even intervals. One end of the main beam is fixedly connected to the support frame of the first floating structure, and the other end of the main beam is fixedly connected to the support frame of the second floating structure. The purlin is fixedly connected between two main beams, and the photovoltaic panel is fixed on the purlin.

3. A novel self-balancing floating photovoltaic system according to claim 1, characterized in that: The support base includes a first vertical rod, a second vertical rod and a first cross rod. The first cross rod is connected between the first vertical rod and the second vertical rod. The first vertical rod and the second vertical rod are provided with through holes into which the support frame can extend.

4. A novel self-balancing floating photovoltaic system according to claim 3, characterized in that: The support frame includes a third vertical rod, a fourth vertical rod, a second cross rod, a first hydraulic rod and a second hydraulic rod, the first hydraulic rod is fixed on the first spring, a power output end of the first hydraulic rod is connected to the third vertical rod, the second hydraulic rod is fixed on the second spring, a power output end of the second hydraulic rod is connected to the fourth vertical rod, and the second cross rod is connected between the third vertical rod and the fourth vertical rod.

5. A novel self-balancing floating photovoltaic system according to claim 3, characterized in that: The support frame includes a third vertical rod, a fourth vertical rod, a second cross rod, a first linear drive and a second linear drive. The lower end of the third vertical rod is fixedly connected to the first spring, the lower end of the first linear drive is rotatably connected to the third vertical rod, the upper end of the first linear drive is rotatably connected to one end of the second cross rod, the lower end of the fourth vertical rod is fixedly connected to the second spring, the lower end of the second linear drive is rotatably connected to the fourth vertical rod, the upper end of the second linear drive is rotatably connected to the other end of the second cross rod, and a telescopic rod for supporting the photovoltaic panel assembly is provided between the two support bases.

6. A novel self-balancing floating photovoltaic system according to claim 5, characterized in that: A first stopper for limiting the rotation angle of the first linear actuator is disposed at the upper end of the first vertical rod, and a second stopper for limiting the rotation angle of the second linear actuator is disposed at the upper end of the second vertical rod.

7. A novel self-balancing floating photovoltaic system according to claim 6, characterized in that: The first limiting member and the second limiting member are both configured to be funnel-shaped.

8. A novel self-balancing floating photovoltaic system according to claim 3, characterized in that: A first diagonal brace and a second diagonal brace are provided between the first vertical rod and the second vertical rod, and the first diagonal brace and the second diagonal brace are arranged in a staggered manner.

9. A novel self-balancing floating photovoltaic system according to claim 1, characterized in that: The support base is connected with a buoyancy block.

10. A novel self-balancing floating photovoltaic system according to claim 1, characterized in that: The support base is made of steel pipe material.

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