Offshore floating type photovoltaic system

Abstract

The invention belongs to the technical field of photovoltaic power generation, and particularly provides an offshore floating type photovoltaic system which comprises a floating body used for supporting and floating on the sea surface and providing a stable buoyancy platform for the whole photovoltaic system; the mooring assembly is connected between the floating body and the seabed and used for fixing the floating body; the support assembly is arranged on the floating body, serves as an installation foundation of the photovoltaic assembly and is used for providing stable support for the photovoltaic assembly and adjusting the installation angle of the photovoltaic assembly; the anchoring assembly is fixed on the bracket assembly, is used for enhancing the stability of the photovoltaic assembly, and is provided with a damping and buffering unit; the photovoltaic assembly is installed on the anchoring assembly and used for converting solar energy into electric energy. The system is specially designed for the marine environment, stable floating and operation in sea areas with large stormy wave conditions are achieved through an innovative floating body structure and a powerful mooring assembly, the application range of photovoltaic power generation is greatly widened, and the sea areas with richer solar energy resources are effectively utilized.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic power generation, and in particular relates to an offshore floating photovoltaic system. Background Art

[0002] As the global demand for clean energy grows, photovoltaic power generation, as a clean and renewable form of energy, is receiving widespread attention. However, traditional land-based photovoltaic power generation projects face problems such as limited land resources and difficult site selection. In order to solve the problem of land occupation, floating photovoltaic platforms on the water surface have also developed rapidly. At present, floating photovoltaic platforms on the water surface are all built in closed waters such as ponds, small lakes, reservoirs, and reservoirs. Because these waters are basically calm and there are no large waves, and the corresponding floating structure design allows the photovoltaic panels to be particularly close to the water surface. In other words, most of the current floating photovoltaic platforms on the water surface are only suitable for calm and closed water surfaces, and do not have the ability to resist wind and waves. They are not suitable for seas with more solar energy resources but greater wind and wave conditions.

[0003] The marine environment is complex and changeable. Extreme conditions such as high temperature, high humidity, and high salt fog place higher demands on the structure and materials of photovoltaic systems. When designing existing structures, it is necessary to consider issues such as resistance to moisture and heat, and salt fog corrosion, to ensure long-term stability and reliability. At the same time, facing extreme weather conditions such as typhoons, huge waves, and strong storm surges, the safety of supporting structures and mooring systems is also a major challenge. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides an offshore floating photovoltaic system to solve the above-mentioned technical problems.

[0005] An offshore floating photovoltaic system, comprising:

[0006] The buoy is used to support and float on the sea surface, providing a stable buoyancy platform for the entire photovoltaic system;

[0007] A mooring assembly is connected between the floating body and the seabed and is used to fix the floating body;

[0008] The bracket assembly is arranged on the floating body and serves as the installation base of the photovoltaic assembly, and is used to provide a stable support for the photovoltaic assembly and adjust the installation angle of the photovoltaic assembly;

[0009] An anchoring assembly, fixed on the bracket assembly, used to enhance the stability of the photovoltaic assembly, and provided with a shock absorbing and buffering unit;

[0010] Photovoltaic modules are installed on the anchoring modules and are used to convert solar energy into electrical energy.

[0011] A further improvement of the technical solution is that the floating body includes a main floating body, an auxiliary floating body and a side floating body. The main floating body is located at the center of the system and is connected to the anchor piles on the seabed through multiple anchor chains. The auxiliary floating body is installed around the main floating body through a first connecting piece. The side floating body is installed at the four corners and long side edges of the system and is flexibly connected to the auxiliary floating body through a second connecting piece.

[0012] A further improvement of the technical solution is that the main float, the auxiliary float and the side float are all made of polyethylene or polypropylene.

[0013] A further improvement of the technical solution is that a monitoring camera and a cable tray are provided on the auxiliary floating body.

[0014] A further improvement of the technical solution is that the mooring assembly comprises:

[0015] The first anchor chain, made of high-strength steel, is used to connect the buoy to a fixed point on the seabed;

[0016] A first anchor, arranged at an end of the first anchor chain away from the buoy, for ensuring the stability and grip of the anchor chain on the seabed;

[0017] A connecting chain and a connecting pin, used to achieve a reliable connection between the first anchor chain and the first anchor;

[0018] Guide wheels and guide grooves are used to guide the anchor chain to follow a predetermined path;

[0019] Counterweights and buoys are used to install counterweights and buoys at preset positions to adjust the dynamic state of the system.

[0020] A further improvement of the technical solution is that the bracket assembly includes:

[0021] The column is connected to the floating body and is used to provide a stable support for the photovoltaic module. A flange is welded at the bottom of the column and is fastened to the embedded parts on the floating body by bolts.

[0022] Crossbeams, used to connect columns and support photovoltaic modules;

[0023] The angle adjustment mechanism is arranged on the crossbeam and is used to adjust the installation angle of the photovoltaic module.

[0024] A further improvement of the technical solution is that the angle adjustment mechanism includes a stepping motor, a coupling, a planetary gear reducer, an adjustment shaft, a bearing and a connecting plate;

[0025] The stepper motor is connected to the planetary gear reducer through a coupling. The reducer decelerates the rotational motion of the stepper motor and increases the torque before transmitting it to the adjustment shaft. The adjustment shaft is installed on the crossbeam through a bearing, one end of which is connected to the output shaft of the gear reducer and the other end is connected to the photovoltaic module. The stepper motor is fixed to the crossbeam through bolts and a connecting plate.

[0026] When the stepper motor rotates, the adjustment shaft is driven to rotate through the gear reducer, thereby changing the installation angle of the photovoltaic module.

[0027] A further improvement of the technical solution is that the angle adjustment mechanism also includes a controller and a sun position sensor, the sun position sensor is installed on the photovoltaic module, and the sun position sensor is communicatively connected with the controller.

[0028] The beneficial effects of the present invention are:

[0029] Enhanced wide applicability: The system is designed specifically for offshore environments. Through innovative floating structures and powerful mooring components, it can stably float and operate in sea areas with strong wind and wave conditions, greatly broadening the application scope of photovoltaic power generation and enabling effective utilization of sea areas with richer solar energy resources.

[0030] Strong wind and wave resistance: The floating structure has been carefully designed and combined with an efficient mooring system, it can effectively withstand extreme weather conditions such as typhoons, huge waves, and strong storm surges, ensuring the safety and stability of the photovoltaic system in harsh sea conditions. At the same time, the built-in shock-absorbing buffer unit of the anchor component further weakens the direct impact of waves on the photovoltaic components, extending the service life of the equipment.

[0031] Efficient power generation and structural optimization: The bracket assembly not only provides a stable support for the photovoltaic modules, but also has the function of adjusting the installation angle. It can automatically or manually adjust according to the changes in the angle of sunlight, maximize the capture of solar energy, and improve power generation efficiency. In addition, the layout of the photovoltaic modules also fully considers the particularity of the marine environment to ensure that they can continue to work efficiently in a humid and high-salt fog environment.

[0032] Improved durability of materials and structures: In response to extreme conditions such as high temperature, high humidity, and high salt spray in the marine environment, the system uses high-performance materials that are resistant to corrosion and moisture to ensure that all components are not damaged during long-term operation. At the same time, the overall structural design takes into account both lightweight and strength requirements, which not only reduces the burden on the floating body, but also ensures the stability of the structure.

[0033] Economical and environmentally friendly: By effectively utilizing the vast ocean space, the system alleviates the problem of land resource shortage and reduces the land cost of photovoltaic power generation projects. At the same time, as a representative of clean energy, photovoltaic power generation helps reduce greenhouse gas emissions, promotes sustainable development, and reflects good economic and environmental benefits.

[0034] In addition, the invention has a reliable design principle, a simple structure and a very broad application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 This is a schematic diagram of the structure of the offshore floating photovoltaic system.

[0037] 110 is a floating body, 121 is a column, 122 is a beam, and 130 is a photovoltaic module. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0040] like Figure 1 As shown, the present invention provides an offshore floating photovoltaic system, including a float, a mooring assembly, a bracket assembly, an anchor assembly and a photovoltaic assembly; specifically, the float is used to support and float on the sea surface, providing a stable buoyancy platform for the entire photovoltaic system; the mooring assembly is connected between the float and the seabed, and is used to fix the float; the bracket assembly is arranged on the float, serving as an installation base for the photovoltaic assembly, and is used to provide stable support for the photovoltaic assembly and adjust the installation angle of the photovoltaic assembly; the anchor assembly is fixed on the bracket assembly, and is used to enhance the stability of the photovoltaic assembly, and is provided with a shock-absorbing buffer unit; the photovoltaic assembly is installed on the anchor assembly, and is used to convert solar energy into electrical energy.

[0041] The floating body includes a main floating body, an auxiliary floating body and a side floating body. The main floating body is located at the center of the system and is connected to the anchor piles on the seabed through multiple anchor chains. The auxiliary floating body is installed around the main floating body through a first connecting piece. The side floating body is installed at the four corners and long side edges of the system and is flexibly connected to the auxiliary floating body through a second connecting piece. Specifically, the main floating body, the auxiliary floating body and the side floating body are all made of polyethylene or polypropylene.

[0042] Furthermore, a surveillance camera and a cable tray are provided on the secondary floating body.

[0043] In addition, the mooring assembly includes a first anchor chain, a first anchor, a connecting chain, a connecting pin, a guide wheel, a guide groove, a counterweight and a buoy; the first anchor chain is made of high-strength steel and is used to connect the floating body to a fixed point on the seabed; the first anchor is arranged at the end of the first anchor chain away from the floating body, and is used to ensure the stability and grip of the anchor chain on the seabed; the connecting chain and the connecting pin are used to achieve a reliable connection between the first anchor chain and the first anchor; the guide wheel and the guide groove are used to guide the anchor chain to be arranged along a predetermined path; the counterweight and the buoy are used to install the counterweight and the buoy at a preset position to adjust the dynamic state of the system.

[0044] In addition, the bracket assembly includes columns, beams and an angle adjustment mechanism; the columns are connected to the floating body and are used to provide stable support for the photovoltaic modules. A flange is welded at the bottom and is fastened to the embedded parts on the floating body by bolts; the beams are used to connect the columns and support the photovoltaic modules; the angle adjustment mechanism is arranged on the beams and is used to adjust the installation angle of the photovoltaic modules.

[0045] The angle adjustment mechanism includes a stepper motor, a coupling, a planetary gear reducer, an adjustment shaft, a bearing and a connecting plate; the stepper motor is connected to the planetary gear reducer through a coupling, and the reducer decelerates the rotational motion of the stepper motor and increases the torque before transmitting it to the adjustment shaft; the adjustment shaft is installed on the crossbeam through a bearing, one end of which is connected to the output shaft of the gear reducer and the other end is connected to the photovoltaic module, and the stepper motor is fixed to the crossbeam through bolts and a connecting plate; when the stepper motor rotates, the adjustment shaft is driven to rotate through the gear reducer, thereby changing the installation angle of the photovoltaic module. The angle adjustment mechanism also includes a controller and a sun position sensor, which is installed on the photovoltaic module and is connected to the controller for communication.

[0046] Although the present invention has been described in detail with reference to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person of ordinary skill in the art may easily think of changes or substitutions within the technical scope disclosed by the present invention, and these shall be within the scope of protection of the present invention.

Claims

1. An offshore floating photovoltaic system, characterized in that: include: The buoy is used to support and float on the sea surface, providing a stable buoyancy platform for the entire photovoltaic system; A mooring assembly is connected between the floating body and the seabed and is used to fix the floating body; The bracket assembly is arranged on the floating body and serves as the installation base of the photovoltaic assembly, and is used to provide a stable support for the photovoltaic assembly and adjust the installation angle of the photovoltaic assembly; An anchoring assembly, fixed on the bracket assembly, used to enhance the stability of the photovoltaic assembly, and provided with a shock absorbing and buffering unit; Photovoltaic modules are installed on the anchoring modules and are used to convert solar energy into electrical energy.

2. The offshore floating photovoltaic system according to claim 1, characterized in that: The floating body includes a main floating body, an auxiliary floating body and a side floating body. The main floating body is located at the center of the system and is connected to the anchor piles on the seabed through multiple anchor chains. The auxiliary floating body is installed around the main floating body through a first connecting piece. The side floating body is installed at the four corners and long side edges of the system and is flexibly connected to the auxiliary floating body through a second connecting piece.

3. The offshore floating photovoltaic system according to claim 2, characterized in that: The main float, auxiliary float and side float are all made of polyethylene or polypropylene.

4. The offshore floating photovoltaic system according to claim 2, characterized in that: Surveillance cameras and cable trays are installed on the secondary buoy.

5. The offshore floating photovoltaic system according to claim 1, characterized in that: The mooring components include: The first anchor chain, made of high-strength steel, is used to connect the buoy to a fixed point on the seabed; A first anchor, arranged at an end of the first anchor chain away from the buoy, for ensuring the stability and grip of the anchor chain on the seabed; A connecting chain and a connecting pin, used to achieve a reliable connection between the first anchor chain and the first anchor; Guide wheels and guide grooves are used to guide the anchor chain to follow a predetermined path; Counterweights and buoys are used to install counterweights and buoys at preset positions to adjust the dynamic state of the system.

6. The offshore floating photovoltaic system according to claim 1, characterized in that: The bracket assembly includes: The column is connected to the floating body and is used to provide a stable support for the photovoltaic module. A flange is welded at the bottom of the column and is fastened to the embedded parts on the floating body by bolts; Crossbeams, used to connect columns and support photovoltaic modules; The angle adjustment mechanism is arranged on the crossbeam and is used to adjust the installation angle of the photovoltaic module.

7. The offshore floating photovoltaic system according to claim 6, characterized in that: The angle adjustment mechanism includes a stepper motor, a coupling, a planetary gear reducer, an adjustment shaft, a bearing and a connecting plate; The stepper motor is connected to the planetary gear reducer through a coupling. The reducer decelerates the rotational motion of the stepper motor and increases the torque before transmitting it to the adjustment shaft. The adjustment shaft is installed on the crossbeam through a bearing, one end of which is connected to the output shaft of the gear reducer and the other end is connected to the photovoltaic module. The stepper motor is fixed to the crossbeam through bolts and a connecting plate. When the stepper motor rotates, the adjustment shaft is driven to rotate through the gear reducer, thereby changing the installation angle of the photovoltaic module.

8. The offshore floating photovoltaic system according to claim 7, characterized in that: The angle adjustment mechanism also includes a controller and a sun position sensor. The sun position sensor is mounted on the photovoltaic assembly, and the sun position sensor is communicatively connected with the controller.

Images