A wind-solar field simulation test device and a test method

Abstract

The application belongs to the technical field of offshore new energy, and discloses a wind-solar field simulation testing device and a testing method. The testing device comprises an outer wall, a wind generator, a wave generator, a floating wind generator, a floating photovoltaic module and a wave adjuster. The outer wall defines a testing area, the testing area has a water inlet, the wind generator is installed on the outer wall, the wave generator, the floating wind generator, the floating photovoltaic module and the wave adjuster are sequentially arranged in the testing area in a first direction away from the water inlet, the floating wind generator is multiple, and the multiple floating wind generators are sequentially arranged along the first direction. Adjacent two floating photovoltaic modules and the floating photovoltaic module and the adjacent floating wind generator are connected through a connecting piece, and the connecting piece is provided with a wave sensor.

Description

Technical Field

[0001] This invention relates to the field of marine new energy technology, and in particular to a wind and solar simultaneous field simulation test device and test method. Background Technology

[0002] With the deepening development of offshore new energy, "wind and solar co-location" has become an important technological direction for intensive use of the sea. Existing offshore wind farms have a large number of mooring and floating structures. If new photovoltaic arrays can utilize these facilities, the project cost can be significantly reduced. At the same time, offshore wind and solar co-location, by intensively utilizing the sea, increases energy density and has become a new trend in deep-sea development. Floating photovoltaic systems leverage wind power foundation structures (such as floating bodies and mooring systems), reducing anchoring costs by more than 30% and using seawater cooling to improve power generation efficiency by 5%-8%. Floating vertical axis wind turbines, due to their low center of gravity, no need for wind resistance, and strong anti-overturning properties, are particularly suitable for integrated scenarios; this model breaks through the economic bottleneck of single-energy development and provides a technological path for integrated energy fields in deep-sea areas. Currently, the industry lacks a testing platform that can simulate the interaction forces between wind and photovoltaic structures, and cannot effectively simulate the forces between photovoltaic arrays and wind turbines located in different areas and with different arrangements, as well as the load conditions at the connection points between wind and photovoltaic structures. Summary of the Invention

[0003] The first objective of this invention is to provide a wind and solar co-operation simulation test device. This device has a simple structure and can test the load at the connection between the photovoltaic module and the wind turbine, as well as the connection between photovoltaic modules, under different working conditions. By recording the tensile, compressive, and fatigue cycles at the connection, it provides an important reference for the design of connection components for wind and solar co-operation at sea.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A wind and solar simultaneous field simulation test device includes an outer wall, a wind generator, a wave generator, a floating wind turbine, a floating photovoltaic module, and a wave regulator. The outer wall defines a test area with a water inlet. The wind generator is installed on the outer wall. In a first direction away from the water inlet, the wave generator, the floating wind turbine, the floating photovoltaic module, and the wave regulator are sequentially floating in the test area. Multiple floating wind turbines are arranged sequentially along the first direction. Adjacent floating photovoltaic modules are connected to each other, and a floating photovoltaic module is connected to an adjacent floating wind turbine via a connector equipped with a wave sensor.

[0006] In some embodiments, the wind and solar simultaneous field simulation test device further includes an environmental tester, which is installed in the test area and is used to measure at least one parameter among temperature, wind speed, wind direction and relative humidity percentage in the test area.

[0007] In some specific embodiments, the environmental testing instrument is in two sets, and the two sets of environmental testing instruments are arranged on both sides of the test area along the second direction. Each set of environmental testing instruments includes multiple environmental testing instruments spaced apart along the first direction. The second direction is perpendicular to the first direction. The floating photovoltaic module and the floating wind turbine are both located between the two sets of environmental testing instruments.

[0008] In some embodiments, each of the floating photovoltaic modules includes: a plurality of floating baffles, the plurality of floating baffles being arranged at intervals along a second direction; at least two floating tubes, the at least two floating tubes being arranged at intervals along a first direction, each floating tube passing through the plurality of floating baffles; and a plurality of photovoltaic modules, the photovoltaic modules being arranged at intervals along the first direction, each photovoltaic module extending along a second direction and fixed to the floating baffles; wherein: the floating baffles and / or the floating tubes are connected to the bottom wall of the test area by mooring chains.

[0009] In some specific embodiments, the float baffle is provided with transverse wave-dissipating holes extending along a first direction.

[0010] In some specific embodiments, each photovoltaic module includes a plurality of photovoltaic panels arranged sequentially along the second direction, and each photovoltaic panel is fixed to the floating baffle by a plurality of legs spaced apart along the first direction; wherein: in the direction away from the water inlet, the height of the plurality of legs increases sequentially, so that the photovoltaic panel is tilted.

[0011] In some embodiments, the floating fan includes: a float connected to the bottom wall of the test area by a mooring chain; a fan body spaced apart from the float; and a support shaft, one end of which is connected to the fan body and the other end of which is connected to the float; wherein at least one of the float and the fan body is vertically movable with the support shaft.

[0012] In some embodiments, the connector further includes two universal joint structures, one end of which is rotatably connected to the wave sensor and the other end of which is connected to the floating photovoltaic module or the floating wind turbine.

[0013] In some embodiments, the wave regulator includes a rotating shaft and an arc-shaped regulating fan, the arc-shaped regulating fan being rotatably mounted on the rotating shaft.

[0014] The beneficial effects of the wind and solar co-location simulation test device of the present invention are as follows: the wave regulator can adjust the wave frequency and wave height, thereby controlling the wave size at different locations within the test area; the wave generator can generate waves for the incoming water at the inlet and control the wave height and wave frequency, thereby controlling the wave distribution within the test area; the wind generator can adjust the wind speed within the test area. By adjusting the parameters within the test area through the wind generator, wave generator, and wave regulator, the test device can simulate various real wind and solar co-location environments. During the test, since two adjacent floating photovoltaic modules and a floating photovoltaic module are connected by connectors, and wave sensors are installed on the connectors, the wave sensors can collect tensile force, pressure, torque, and bending moment, and can collect the force changes over time, thereby obtaining the fatigue cyclic load of the connectors. Therefore, the testing device provided by this invention can simulate different environmental conditions and power station forms with simultaneous wind and solar power in the test area of ​​the testing device by adjusting factors such as wave size, wave direction, and wind force. By extracting the detection parameters of the wave sensor at the connector, it can extract parameters such as fatigue cycle of cyclic load and wind load shading effect curve, providing data support for subsequent numerical simulation and engineering applications, and providing important reference for the design of connectors with simultaneous wind and solar power at sea.

[0015] The second objective of this invention is to provide a method for simulating simultaneous wind and solar power testing. This method can test the loads at the connection points between photovoltaic modules and wind turbines, as well as between photovoltaic modules themselves, under different operating conditions. By recording data on the tensile, compressive, and fatigue cycles at the connection points, it provides important reference for the design of connecting components for simultaneous wind and solar power testing at sea.

[0016] To achieve this objective, the present invention adopts the following technical solution:

[0017] A method for simulating simultaneous wind and solar power testing, using the aforementioned simultaneous wind and solar power testing device, includes the following steps: installing a wind generator on an exterior wall, and installing a wave generator, wave regulator, environmental testing instrument, floating wind turbine, and floating photovoltaic module within the testing area; while maintaining the wave and current conditions within the testing area, controlling the wave generator, the wind generator, and the wave regulator to adjust the experimental parameters within the testing area; stopping the test when preset conditions are met, and recording the time history curve of the wave sensor, the trajectory of the floating body, and the number of fatigue cycles, and recording this as the extreme state; if the preset conditions are not met after a specified test duration, recording the time history curve of the wave sensor, the trajectory of the floating body, and the number of fatigue cycles, and recording this as the normal state.

[0018] In some embodiments, the preset conditions include: the force exerted on the connector exceeds a safety threshold; and / or, the angle between the floating photovoltaic module and the horizontal plane is greater than a maximum preset tilt angle; and / or, the tension of the mooring chain of the floating photovoltaic module or the mooring chain of the floating wind turbine exceeds a safety threshold.

[0019] In some specific embodiments, the wave and current conditions include standard sea state, high wave condition, and typhoon extreme condition; wherein: under the standard sea state, the wave height H is 1m, the wave period is 5s, and the wave and current speed is 1 knot; under the high wave condition, the wave height H is 2m, the wave period is 8s, and the wave and current speed is 2 knots; under the typhoon extreme condition, the wave height H is 2.5m, the wave period is 10s, and the wave and current speed is 3 knots.

[0020] The beneficial effects of the wind and solar co-location simulation test method of the present invention are as follows: By adjusting factors such as wave size, wave direction, and wind force, different environmental conditions and power station forms under wind and solar co-location are simulated in the test area of ​​the test device. By extracting the detection parameters of the wave sensor at the connection point, the loads at the connection points of photovoltaic modules and wind turbines, as well as the connection points between photovoltaic modules, are tested under different working conditions. By recording the tensile, compressive, and fatigue cycles at the connection points, important references are provided for the design of connection points for offshore wind and solar co-location.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the wind and solar simultaneous field simulation test device according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the connector according to an embodiment of the present invention;

[0024] Figure 3 This is an isometric view of the connector according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of a floating photovoltaic module according to an embodiment of the present invention;

[0026] Figure 5 This is a side view of a floating photovoltaic module according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of a floating fan according to an embodiment of the present invention;

[0028] Figure 7 This is a flowchart of the wind and light simultaneous field simulation test method according to an embodiment of the present invention.

[0029] Figure label:

[0030] 100. Exterior wall; 110. Test area; 120. Inlet; 130. Outlet; 200. Fan; 300. Wave generator; 400. Floating fan; 410. Float; 420. Fan body; 430. Support shaft; 500. Floating photovoltaic module; 510. Floating baffle; 511. Lateral wave discharge hole; 520. Floating tube; 530. Photovoltaic module; 531. Photovoltaic panel; 540. Support leg; 600. Wave regulator; 700. Connector; 710. Wave sensor; 720. Universal joint structural component; 800. Environmental testing instrument. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0032] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0034] This invention discloses a wind and solar simultaneous field simulation test device (hereinafter referred to as the test device for ease of description), refer to Figure 1As shown, the testing device includes an outer wall 100, a wind generator 200, a wave generator 300, a floating fan 400, a floating photovoltaic module 500, and a wave regulator 600. The outer wall 100 defines a test area 110, which has an inlet 120 and an outlet 130. The wind generator 200 is installed on the outer wall 100. In a first direction away from the inlet 120, the wave generator 300, the floating fan 400, the floating photovoltaic module 500, and the wave regulator 600 are arranged in sequence floating in the test area 110. There are multiple floating fans 400, and the multiple floating fans 400 are arranged in sequence along the first direction. Adjacent floating photovoltaic modules 500 are connected to each other and to each floating photovoltaic module 500 and adjacent floating fan 400 by a connector 700. The connector 700 is equipped with a wave sensor 710. Understandably, the wave regulator 600 can adjust the wave frequency and wave height, thereby controlling the wave size at different locations within the test area 110. The wave generator 300 can generate waves for the incoming water at the inlet 120 and control the wave height and wave frequency, thereby controlling the wave distribution within the test area 110. The wind generator 200 can adjust the wind speed within the test area 110. By adjusting the parameters within the test area 110 through the wind generator 200, the wave generator 300, and the wave regulator 600, the test device can simulate various real wind and solar co-current environments. During the test, since two adjacent floating photovoltaic modules 500 are connected by a connector 700, and a floating photovoltaic module 500 is connected to an adjacent floating wind generator 400, the connector 700 is equipped with a wave sensor 710. The wave sensor 710 can collect tensile force, compressive force, torque, and bending moment, and can collect the force change over time, thereby obtaining the fatigue cyclic load of the connector 700. Therefore, the testing device provided by this invention can simulate different environmental conditions and power station forms with simultaneous wind and solar power in the test area 110 of the testing device by adjusting factors such as wave size, wave direction, and wind force. By extracting the detection parameters of the wave sensor 710 at the connector 700, it can extract parameters such as fatigue cycle of cyclic load and wind load shielding effect curve, providing data support for subsequent numerical simulation and engineering applications, and providing important reference for the design of the connector 700 with simultaneous wind and solar power at sea.

[0035] refer to Figure 1As shown, the testing device includes an environmental testing instrument 800, which is installed in the testing area 110 and is used to measure at least one parameter among temperature, wind speed, wind direction, and relative humidity percentage in the testing area 110. It is understood that the environmental testing instrument 800 can measure at least one parameter among temperature, wind speed, wind direction, and relative humidity percentage in the testing area 110. During actual operation, it can monitor the condition of the entire testing area 110 in real time and adjust the working status of the wind generator 200, wave generator 300, and wave regulator 600 based on the test results of the environmental testing instrument 800, thereby enabling the testing device to more accurately simulate various working conditions of real-world marine scenery.

[0036] Optionally, the environmental testing instruments 800 are arranged in two sets, with the two sets of environmental testing instruments 800 positioned on both sides of the test area 110 along the second direction. Each set of environmental testing instruments 800 includes multiple environmental testing instruments 800 spaced apart along the first direction, and the second direction is perpendicular to the first direction. The floating photovoltaic module 500 and the floating wind turbine 400 are both located between the two sets of environmental testing instruments 800. It is understood that dividing the environmental testing instruments 800 into two sets, each including multiple environmental testing instruments 800, allows for comprehensive detection of various parameters within the test area 110, improving the accuracy of parameter measurements. This enables the testing device to more accurately simulate various operating conditions of real-world marine weather conditions.

[0037] Optionally, the wave regulator 600 includes a rotating shaft and an arc-shaped adjusting fan, the arc-shaped adjusting fan being rotatably mounted on the rotating shaft. It is understood that during actual operation, the wave frequency and wave height can be adjusted manually or automatically by adjusting the arc-shaped adjusting fan, thereby controlling the wave size at different locations within the test area 110, facilitating parameter adjustment. Further optionally, two wave regulators 600 are provided, spaced apart along the second direction. Of course, in other embodiments of the present invention, the number of wave regulators 600 can be selected according to actual needs and is not limited to the above description.

[0038] refer to Figures 2-3 As shown, the connector 700 also includes two universal joint structural members 720. One end of each universal joint structural member 720 is rotatably connected to the wave sensor 710, and the other end is connected to the floating photovoltaic module 530 or the floating wind turbine 400. It is understood that the connector 700, including the two universal joint structural members 720, allows for free movement relative to the floating photovoltaic module 530 or the floating wind turbine 400 during actual testing, enabling the testing device to more accurately simulate various working conditions of real-world marine weather and solar power. The universal joint structural members 720 and the wave sensor 710 can be connected via fixed pins or snap-fit ​​connections, depending on the specific type of the universal joint structural member and the wave sensor 710.

[0039] refer to Figures 4-5 As shown, each floating photovoltaic module 500 includes multiple floating baffles 510, at least two floating tubes 520, and photovoltaic modules 530. The multiple floating baffles 510 are arranged at intervals along a second direction, and the at least two floating tubes 520 are arranged at intervals along a first direction. Each floating tube 520 passes through multiple floating baffles 510. There are multiple photovoltaic modules 530, which are arranged at intervals along the first direction. Each photovoltaic module 530 extends along the second direction and is fixed to the floating baffles 510. The floating baffles 510 and / or floating tubes 520 are connected to the bottom wall of the test area 110 by mooring chains (not shown). It can be understood that the floating baffles 510 and floating tubes 520 serve as the floating body 410 structure for the photovoltaic modules 530, which can stably support the photovoltaic modules 530 and simplify the structure of the floating photovoltaic module 500, thereby reducing manufacturing costs. In the embodiments of the present invention, the mooring chain is a prior art technology and can be selected according to the prior art; the specific structure of the mooring chain is not limited herein.

[0040] Optionally, the float baffle 510 is provided with transverse wave-dissipating holes 511 extending along the first direction. It is understood that the transverse wave-dissipating holes 511 effectively disperse transverse wave forces, reducing experimental errors caused by transverse wave direction. In this embodiment, there are multiple transverse wave-dissipating holes 511; of course, the number and structure of the transverse wave-dissipating holes 511 can be selected according to actual needs. To enhance the strength of the float baffle 510, reinforcing ribs can be provided around the transverse wave-dissipating holes 511.

[0041] Optionally, each photovoltaic module 530 includes multiple photovoltaic panels 531 arranged sequentially along a second direction. Each photovoltaic panel 531 is fixed to the floating baffle 510 by multiple legs 540 spaced apart along a first direction. Specifically, in the direction away from the water inlet 120, the height of the multiple legs 540 increases sequentially, causing the photovoltaic panels 531 to be tilted. It is understood that dividing the photovoltaic module 530 into multiple photovoltaic panels 531, rather than using a single elongated structure, facilitates production, transportation, and assembly, and helps reduce the overall construction cost of the testing device. The tilted arrangement of the photovoltaic panels 531 conforms to the actual working posture, which can improve the light absorption rate of the photovoltaic panels 531, thereby improving power generation efficiency.

[0042] Optionally, the support leg 540 includes a fixing part and a snap-fit ​​part. The fixing part is fixed to the floating baffle 510 by bolts, and the snap-fit ​​part is fixed to the fixing part by bolts and is used to snap the photovoltaic panel 531. This facilitates the installation of the photovoltaic panel 531 onto the floating baffle 510 by experimental personnel and improves the installation stability of the photovoltaic panel 531. In this embodiment, there are two support legs 540, and each photovoltaic panel 531 has a floating baffle 510 at both ends along the second direction. This improves the fixing stability of the photovoltaic panel 531. Of course, in other embodiments of the present invention, the number of support legs 540 and the number of floating baffles 510 can be selected according to actual needs and are not limited to the prior art.

[0043] refer to Figure 6 As shown, the floating wind turbine 400 includes a float 410, a turbine body 420, and a support shaft 430. The float 410 is connected to the bottom wall of the test area 110 via a mooring chain. The turbine body 420 is spaced apart from the float 410. One end of the support shaft 430 is connected to the turbine body 420, and the other end is connected to the float 410. It can be understood that the turbine body 420 is supported by the float 410 and the support shaft 430, thus forming a vertical axis wind turbine structure in this embodiment, which can be effectively matched with the floating photovoltaic module 500. The float 410 in this embodiment is a semi-submersible float; however, other floats 410 can be selected according to actual needs. The turbine body 420 can also be a bladed wind turbine and is not limited to the vertical axis wind turbine structure of this embodiment.

[0044] Optionally, at least one of the float 410 and the fan body 420 can be height-adjustably coupled to the support shaft 430. Therefore, during actual operation, the height of the fan body 420 relative to the bottom wall of the test area 110 can be adjusted according to experimental needs, thereby better simulating actual working conditions. Further optionally, one end of the support shaft 430 is threaded onto the float 410, which facilitates both the installation of the support shaft 430 and the float 410, and the adjustment of the float 410 relative to the support shaft 430.

[0045] The advantages of the wind and solar simultaneous field simulation test device in this embodiment are as follows:

[0046] First, the dynamic mechanical response quantitative test of connector 700 was achieved. By adjusting factors such as wave size, wave direction, and wind force, different environmental conditions and the power station configuration under simultaneous wind and solar power were simulated in the test device. By extracting parameters from the wave sensor 710 and environmental testing instrument 800 at connector 700, parameters such as the fatigue cycle of cyclic loads and the wind load shading effect curve can be extracted, providing data support for subsequent numerical simulations and engineering applications.

[0047] Secondly, the floating photovoltaic module 500 has a simple structure, is easy to install, and can effectively disperse lateral waves; the floating wind turbine 400 is a vertical axis wind turbine with a small height, reducing shading, and the turbine body 420 converts some of the wind into electricity while reducing the wind load on the floating photovoltaic module 500, thus shading the floating photovoltaic module 500 from the wind load, so neither wind energy nor solar energy is wasted.

[0048] Third, it realizes environmental-structure coupling testing. Through wind-wave-current joint loading and floating body 410 motion monitoring, it quantifies the dynamic response of connector 700 in key degrees of freedom such as sway and roll, filling the gap in wind-solar interface mechanical data.

[0049] Fourth, the testing process is simple, low-cost, and short-cycle, providing a basis for the joint design of the floating wind turbine 400 and the floating photovoltaic module 500.

[0050] Fifth, during the testing process, physical test data can be imported into the numerical model in real time to form a closed-loop optimization link of "test-simulation" and improve the reliability of parameter extrapolation.

[0051] This invention also discloses a method for simulating simultaneous wind and solar power testing, with reference to... Figure 7 As shown, the wind and light co-existence simulation test device described above was used, and the test included the following steps:

[0052] S1: Install the wind generator 200 on the outer wall 100, and install the wave generator 300, wave regulator 600, environmental tester 800, floating wind generator 400 and floating photovoltaic module 500 in the test area 110.

[0053] Specifically, the wave generator 300 can be fixed to the outer wall 100 with anchor bolts. The wave generator 300 and the environmental tester 800 can be fixed to the bottom wall of the test area 110 with anchor bolts. The rotating shaft of the wave regulator 600 can be fixed to the driver, and then the driver can be fixed to the bottom wall of the test area 110. The floating wind turbine 400 and the floating photovoltaic module 500 are both fixed in the test area 110 with mooring chains.

[0054] S2: While keeping the wave and current conditions in the test area 110 unchanged, control the wave generator 300, the wind generator 200 and the wave regulator 600 to adjust the experimental parameters in the test area 110.

[0055] Specifically, there are three wave and current conditions: standard sea state, large wave condition, and typhoon extreme condition. Under standard sea state, the wave height H is 1m, the wave period is 5s, and the current speed is 1 knot. Under large wave condition, the wave height H is 2m, the wave period is 8s, and the current speed is 2 knots. Under typhoon extreme condition, the wave height H is 2.5m, the wave period is 10s, and the current speed is 3 knots. It should be noted that the wave and current conditions are determined based on actual conditions and parameters can be determined according to local sea conditions. The focus of the study is on the fatigue resistance and material mechanical properties of the 700 connecting component.

[0056] The experimental parameters include wind speed V and turbulence intensity TI. Wind speed V can be directly measured using an environmental testing instrument 800, while turbulence intensity TI is calculated using the following formula:

[0057]

[0058] in: The standard deviation of wind speed represents the instantaneous wind speed fluctuation amplitude. When V≥25m / s, the turbulence intensity is generally taken as 20%-40%. The physical mechanism at this time is that the shear turbulence is greatly enhanced under strong convection / typhoon. In actual wind and solar co-operation design, it is necessary to strengthen the fatigue resistance of the 700 connector for high TI conditions and optimize the control strategy to suppress power fluctuations. This is also the engineering significance of this test method.

[0059] S3: Stop the test when the preset conditions are met, and record the time history curve of wave sensor 710, the motion trajectory of float 410, and the number of fatigue cycles, and record it as the limit state; if the preset conditions are not met after the test has been conducted for a specified time, record the time history curve of wave sensor 710, the motion trajectory of float 410, and the number of fatigue cycles, and record it as the normal state.

[0060] Specifically, in the actual testing process, any of the following conditions are preset:

[0061] First: The force exerted on connector 700 exceeds the safety threshold. The force can be detected by wave sensor 710. The safety threshold is 40kN.

[0062] Second: The angle between the floating photovoltaic module 500 and the horizontal plane is greater than the maximum preset tilt angle, which is 15°. Of course, it can also be selected according to actual needs. An angle sensor can be installed on the photovoltaic panel of the floating photovoltaic module 500 to test the tilt angle.

[0063] Third: The tension of the mooring chain of the floating photovoltaic module 500 or the floating wind turbine 400 exceeds the safety threshold. The safety threshold can be obtained by force sensors installed on the mooring chain, and the safety threshold can be determined according to the type of mooring chain.

[0064] It should be further explained that since there are three wave and current conditions, including standard sea state, large wave condition, and typhoon extreme condition, if the test does not meet the preset conditions after a specified period of time under any of the three conditions, the connector 700 is considered to be in a normal state, indicating that the connector 700 can meet the actual needs. However, if an extreme state occurs under any of the three conditions, it indicates that there is a design defect in the connector 700 and the design needs to be modified.

[0065] The test parameters for standard sea state are shown in Table 1. A specific test method is as follows:

[0066] Table 1

[0067]

[0068] By modifying different experimental parameters under standard sea conditions, load analysis and wind load shielding analysis of wind and light co-existing fields were conducted to screen out the optimal positions for the spacing between wind and light co-existing field arrays, providing an important reference for the design of the 700 connecting component for wind and light co-existing fields at sea.

[0069] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0070] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A wind and solar simultaneous field simulation test device, characterized in that, The system includes an external wall, a wind generator, a wave generator, a floating fan, a floating photovoltaic module, and a wave regulator. The external wall defines a test area with a water inlet. The wind generator is installed on the external wall. In a first direction away from the water inlet, the wave generator, the floating fan, the floating photovoltaic module, and the wave regulator are sequentially floated and arranged within the test area. There are multiple floating fans, and the multiple floating fans are arranged sequentially along the first direction; The two adjacent floating photovoltaic modules and the floating photovoltaic module and the adjacent floating wind turbine are connected by a connector, which is equipped with a wave sensor.

2. The wind and solar simultaneous field simulation test device according to claim 1, characterized in that, It also includes an environmental testing instrument, which is installed in the test area and is used to measure at least one of the following parameters: temperature, wind speed, wind direction, and relative humidity percentage in the test area.

3. The wind and solar simultaneous field simulation test device according to claim 2, characterized in that, The environmental testing equipment consists of two sets, positioned on either side of the testing area along a second direction. Each set includes multiple environmental testing equipment spaced apart along a first direction, with the second direction perpendicular to the first direction. Both the floating photovoltaic module and the floating wind turbine are located between the two sets of environmental testing instruments.

4. The wind and solar simultaneous field simulation test device according to any one of claims 1-3, characterized in that, Each of the aforementioned floating photovoltaic modules includes: Multiple floating baffles are arranged at intervals along a second direction; At least two float tubes are arranged at intervals along a first direction, and each float tube passes through a plurality of float baffles; A plurality of photovoltaic modules are arranged at intervals along a first direction, and each photovoltaic module extends along a second direction and is fixed to the floating baffle; wherein: The float baffle and / or the float tube are connected to the bottom wall of the test area by a mooring chain.

5. The wind and solar simultaneous field simulation test device according to claim 4, characterized in that, The float baffle is provided with transverse wave-relief holes extending along the first direction.

6. The wind and solar simultaneous field simulation test device according to claim 4, characterized in that, Each photovoltaic module includes multiple photovoltaic panels arranged sequentially along the second direction, and each photovoltaic panel is fixed to the floating baffle by multiple legs spaced apart along the first direction; wherein: In the direction away from the water inlet, the height of the plurality of legs increases sequentially, so that the photovoltaic panel is tilted.

7. The wind and solar simultaneous field simulation test device according to any one of claims 1-3, characterized in that, The floating fan includes: A floating body, which is connected to the bottom wall of the test area by a mooring chain; The fan body is spaced apart from the float. A support shaft, one end of which is connected to the fan body and the other end of which is connected to the float; wherein at least one of the float and the fan body is vertically and vertically compatible with the support shaft.

8. The wind and solar simultaneous field simulation test device according to any one of claims 1-3, characterized in that, The connector also includes two universal joint structural components, one end of which is rotatably connected to the wave sensor, and the other end is connected to the floating photovoltaic module or the floating wind turbine.

9. The wind and solar simultaneous field simulation test device according to any one of claims 1-3, characterized in that, The wave regulator includes a rotating shaft and an arc-shaped adjusting fan, the arc-shaped adjusting fan being rotatably mounted on the rotating shaft.

10. A method for simulating and testing wind and light in the same field, characterized in that, The test is conducted using the wind and solar co-location simulation device as described in any one of claims 1-9, and includes the following steps: The wind generator is installed on the exterior wall, and the wave generator, wave regulator, environmental tester, floating wind turbine and floating photovoltaic module are installed in the test area. While keeping the wave and current conditions in the test area unchanged, control the wave generator, the wind generator, and the wave regulator to adjust the experimental parameters in the test area; The test stops when the preset conditions are met, and the time history curve of the wave sensor, the trajectory of the floating body, and the number of fatigue cycles are recorded and marked as the extreme state. If the preset conditions are not met after a specified period of testing, the time history curve of the wave sensor, the trajectory of the floating body, and the number of fatigue cycles are recorded and marked as the normal state.

11. The method for simulating simultaneous wind and solar power testing according to claim 10, characterized in that, The preset conditions include: The force exerted on the connector exceeds a safety threshold; and / or, The angle between the floating photovoltaic module and the horizontal plane is greater than the maximum preset tilt angle; and / or, The tension of the mooring chain of the floating photovoltaic module or the mooring chain of the floating wind turbine exceeds the safety threshold.

12. The method for simulating simultaneous wind and solar power testing according to claim 10, characterized in that, The wave and current conditions include standard sea state, high wave conditions, and typhoon extreme conditions; wherein: Under the aforementioned standard sea state, the wave height H is 1m, the wave period is 5s, and the wave current speed is 1 knot; Under the aforementioned high wave conditions, the wave height H is 2m, the wave period is 8s, and the wave velocity is 2 knots. Under the extreme typhoon conditions described, the wave height H is 2.5m, the wave period is 10s, and the wave velocity is 3 knots.

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