Wave simulation test device and test system for photovoltaic module

Abstract

The utility model relates to a wave simulation test device and test system for a photovoltaic module, and the device comprises a container which is used for containing a test water body, a floating body which is used for installing a photovoltaic module to be tested, a first wave driving mechanism, and a second wave driving mechanism. The second wave driving mechanism is arranged on the other side wall of the container, the first wave driving mechanism is used for driving the test water body in the first direction, the second wave driving mechanism is used for driving the test water body in the second direction, and the first direction and the second direction are different extension directions. The first wave driving mechanism and the second wave driving mechanism are combined to generate waves, so that water can circulate in the container, more stable waves can be formed, different types of waves can be generated by changing different driving directions of the first wave driving mechanism to the water, different use scenes are further simulated, and the water quality is improved. And more accurate detection data of the photovoltaic module can be obtained.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module testing technology, and in particular to a wave simulation test device and test system for photovoltaic modules. Background Technology

[0002] With the rapid growth of the photovoltaic market, the application scenarios of photovoltaic modules have extended from land to water. Among them, floating photovoltaic power stations are an important form. Due to the floating nature of water, the reliability of photovoltaic modules in floating power stations faces some challenges, such as the impact of wind and waves and long-term shaking on photovoltaic modules.

[0003] Therefore, before photovoltaic modules are applied to floating power stations, they need to be tested. The main challenges that photovoltaic modules are subjected to when installed in floating power stations are ultraviolet radiation, wind and waves, high temperature, high humidity, and salt spray (salt spray refers only to marine environments; freshwater surfaces are not subject to this challenge).

[0004] Existing technologies also include testing devices for photovoltaic modules in floating power stations, which involve wave simulation. However, the wave-generating mechanisms in existing technologies can only push the water in one direction to form waves. The waves generated in this way are unstable and have a single wave pattern, which deviates significantly from the actual water environment. Therefore, the data accuracy is not high when testing photovoltaic modules facing wind and waves. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a wave simulation test device and testing system for photovoltaic modules. This wave simulation test device can not only generate stable waves, but also generate different types of waves, resulting in more accurate test data.

[0006] To solve the above technical problems, the present invention adopts the following technical solution:

[0007] A wave simulation testing device for photovoltaic modules includes:

[0008] A container used to hold the test water;

[0009] A float, which is disposed inside the container and can float on the water surface under the action of the test water, is used to mount the photovoltaic module to be tested;

[0010] A connecting rope, one end of which is connected to the container and the other end of which is connected to the float;

[0011] A first wave drive mechanism is disposed on one side wall of the container, and the first wave drive mechanism is used to drive the test water body in a first direction;

[0012] A second wave drive mechanism is disposed on the other side wall of the container. The second wave drive mechanism is used to drive the test water body in a second direction. The first direction and the second direction are different extension directions.

[0013] The controller is connected to the first wave drive mechanism and the second wave drive mechanism via signals.

[0014] Optionally, the first direction extends horizontally or extends obliquely in the horizontal direction; the second direction extends vertically or extends obliquely in the vertical direction.

[0015] Optionally, the first wave driving mechanism and the second wave driving mechanism each include a fixed groove extending horizontally and having a slot, a fixed plate disposed in the fixed groove, a water pump and a plurality of water inlet pipes, the fixed plate having a plurality of water outlets along its length, the outlet of the water pump being connected to the plurality of water outlets, the inlet of the water pump being connected to the plurality of water inlet pipes, and the end of each of the water inlet pipes being exposed outside the fixed groove and located inside the container;

[0016] The controller is signal-connected to the water pump.

[0017] Optionally, the first wave drive mechanism and the second wave drive mechanism further include an adjustment plate rotatably connected to the fixed groove via a rotating shaft and a motor for driving the rotating shaft to rotate and thus driving the adjustment plate to rotate. The rotating shaft extends horizontally, and the adjustment plate is located at the groove opening and in front of the water flow at the outlet. The adjustment plate is used to adjust the direction of the water flow at the outlet.

[0018] Optionally, the flow rate of the water pump is 3 to 15 m / s, and the frequency is 0.1 to 2 Hz.

[0019] Optionally, the water pump may have one or more.

[0020] Optionally, the water pump is disposed between the fixed plate and the fixed groove.

[0021] Optionally, the slot opening of the fixing groove of the first wave drive mechanism is arranged opposite to the slot opening of the fixing groove of the second wave drive mechanism.

[0022] Optionally, the connecting ropes are multiple, with one end of each rope connected to the float in a sequential manner along the circumference of the float; the other end of each rope is sequentially connected to the bottom region of the container in a sequential manner.

[0023] Optionally, the container is a cube or a cuboid.

[0024] Optionally, the float includes connecting portions disposed on opposite sides and mounting portions at both ends connected to the connecting portions on both sides respectively. The photovoltaic module is disposed on the mounting portion. The connecting rope has four ropes, two of which are connected to the two ends of the connecting portion on one side respectively, and the other two ropes are connected to the two ends of the connecting portion on the other side respectively.

[0025] Optionally, the photovoltaic module is tilted and mounted on the float.

[0026] The second technical solution adopted by this utility model is: a testing system, which includes the wave simulation test device described above.

[0027] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0028] The wave simulation test device of this utility model uses a combination of a first wave driving mechanism and a second wave driving mechanism to generate waves. This not only allows the test water to circulate in the container and form more stable waves, but also allows different types of waves to be generated by changing the driving direction of the first wave driving mechanism on the test water, thereby simulating different usage scenarios and obtaining more accurate test data for photovoltaic modules. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0030] Figure 1 This is a wave simulation test device for photovoltaic modules according to an embodiment of the present invention;

[0031] Figure 2 for Figure 1 A schematic diagram of the structure of the first wave drive mechanism in the wave simulation test device;

[0032] Figure 3 A schematic diagram of the first wave drive mechanism from another angle;

[0033] Figure 4 for Figure 2 A schematic diagram of the fixed plate and water inlet pipe in the first wave drive mechanism;

[0034] Figure label:

[0035] 1. Container; 2. Float; 21. Connecting part; 22. Mounting part; 3. Connecting rope; 4. First wave drive mechanism; 41. Fixing groove; 42. Fixing plate; 43. Water inlet pipe; 44. Water outlet; 45. Adjusting plate; 46. Rotating shaft; 5. Second wave drive mechanism; 6. Photovoltaic module; 7. Test water body. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solutions in the embodiments of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art should fall within the protection scope of this utility model.

[0037] See Figure 1 The wave simulation test device for photovoltaic modules shown includes a container 1, which is used to hold test water 7. The test water can be river water, lake water, seawater, or a liquid with the same composition, depending on the environment in which the photovoltaic modules need to be installed.

[0038] As shown in the figure, the wave simulation test device also includes a float 2 and a connecting rope 3. The float 2 is set inside the container 1 and can be suspended on the water surface under the action of the test water body 7. The float 2 is used to install the photovoltaic module 6 to be tested. One end of the connecting rope 3 is connected to the container 1 and the other end is connected to the float 2. The float 2 has the same function as the float that fixes the photovoltaic module in the floating power station. It moves in the container 1 through the connecting rope 3, so that the float 2 can sway with the waves, but will not produce obvious displacement (so that its swaying is similar to the swaying of the float in the actual floating power station).

[0039] Specifically, there are multiple connecting ropes 3. One end of each connecting rope 3 is connected to the float 2, and the connection points of the multiple connecting ropes 3 and the float 2 are distributed sequentially along the circumference of the float 2. The other end of each connecting rope 3 is connected to the lower part or bottom of the container 1, and the connection points of the other end of each connecting rope 3 and the container 1 are distributed sequentially along the circumference of the container 1.

[0040] In some embodiments, such as Figure 1 As shown, container 1 is a cuboid, and there are four connecting ropes 3, with the ends of the four connecting ropes 3 respectively connected to the four corners of the bottom of container 1. In other embodiments, container 1 can also be other shapes, such as a cube.

[0041] The floating body 2 includes connecting parts 21 on opposite sides and mounting parts 22 at both ends connected to the connecting parts 21 on both sides respectively. The photovoltaic module 6 is installed at an angle on the mounting part 22 to make the test scenario closer to the actual floating power station. Two of the four connecting ropes 3 are connected to the two ends of the connecting part 21 on one side respectively, and the other two connecting ropes 3 are connected to the two ends of the connecting part 21 on the other side respectively.

[0042] To make the swaying of the float 2 more closely resemble the swaying of the float in an actual floating power station, the wave simulation test device also includes a first wave drive mechanism 4 and a second wave drive mechanism 5. The first wave drive mechanism 4 is set on one side wall of the container 1, and the second wave drive mechanism 5 is set on the other side wall of the container 1. The first wave drive mechanism 4 is used to drive the test water body 7 in a first direction, and the second wave drive mechanism 5 is used to drive the test water body 7 in a second direction. The extension line of the first direction extends horizontally or extends obliquely in the horizontal direction, and the extension line of the second direction extends vertically or extends obliquely in the vertical direction.

[0043] In some embodiments, the first wave drive mechanism can drive the test water in a direction parallel to the horizontal plane, drive the test water at an angle upward, or drive the test water at an angle downward; the extension line of the second direction extends obliquely in the vertical direction, and the second wave drive mechanism drives the test water at an angle downward.

[0044] Through the action of the first wave drive mechanism 4 and the second wave drive mechanism 5 on the test water, the test water can circulate within the container and form more stable waves. Furthermore, by adjusting the direction of the test water driven by the first wave drive mechanism 4, combined with the second wave drive mechanism 5, different types of waves can be generated, suitable for different water environments, thus broadening its applicability.

[0045] In some embodiments, such as Figures 2 to 3 A schematic diagram of the first wave drive mechanism 4 is shown. The structure of the second wave drive mechanism can be the same as that of the first wave drive mechanism. The following is a combination of... Figures 2 to 3 The structure of the first wave drive mechanism 4 is described in detail.

[0046] See Figures 2 to 3 The first wave drive mechanism includes a fixed groove 41 extending horizontally along one side wall of the container 1 and having a slot facing the other side wall of the container 1. The first wave drive mechanism also includes a fixed plate 42, a water pump (not shown in the figure), and multiple water inlet pipes 43 disposed in the fixed groove 41. The fixed plate 42 is provided with multiple water outlets 44 along its length. The outlet of the water pump is connected to the multiple water outlets 44, and the inlet of the water pump is connected to the multiple water inlet pipes 43. The ends of each water inlet pipe 43 are exposed outside the fixed groove 41 and located inside the container 1.

[0047] In some embodiments, there are multiple water pumps, and the number of water pumps corresponds one-to-one with the number of water outlets 44, and the number of water pumps also corresponds one-to-one with the number of water inlet pipes 43. See [reference needed] Figure 4 Water enters through each inlet pipe 43 and flows out through the corresponding outlet 44. The water pump can be installed between the fixed plate 42 and the fixed groove 41, or it can be installed outside the container 1.

[0048] The flow rate of each water pump can be 3 to 15 m / s, and the frequency can be 0.1 to 2 Hz.

[0049] In other embodiments, a single water pump may be provided, which is connected to multiple water outlets via connecting pipes and also to multiple water inlet pipes via connecting pipes.

[0050] See also Figures 2 to 3 The first wave drive mechanism also includes an adjustment plate 45 rotatably connected to the fixed groove 41 via a rotating shaft 46 and an electric motor (not shown in the figure) for driving the rotating shaft 46 to rotate and thus driving the adjustment plate 45 to rotate. The rotating shaft 46 extends horizontally, and the adjustment plate 45 is located at the opening of the fixed groove 41 and in front of the water flow at the outlet 44. The adjustment plate 45 is used to adjust the direction of the water flow at the outlet 44.

[0051] The controller is electrically connected to the water pump and the motor respectively, and is used to control the operation of the water pump and the motor.

[0052] The slot opening of the fixing groove 41 of the first wave drive mechanism is arranged opposite to the slot opening of the fixing groove of the second wave drive mechanism, that is, the slot opening of the fixing groove 41 of the first wave drive mechanism faces the fixing groove of the second wave drive mechanism, and the slot opening of the fixing groove of the second wave drive mechanism faces the fixing groove of the first wave drive mechanism.

[0053] In specific testing applications, the electric motor drives the adjusting plate 45 of the first wave drive mechanism to adjust the angle between its plane and the horizontal plane from -45° to 45°, thus changing the angle between the water flow from the water outlet 44 of the first wave drive mechanism and the horizontal plane within this range. The electric motor drives the adjusting plate 45 of the second wave drive mechanism to adjust the angle between its plane and the horizontal plane from -45° to -90°, thus changing the angle between the water flow from the water outlet 44 of the second wave drive mechanism and the horizontal plane within this range. Typically, the angle between the plane of the adjusting plate 45 of the second wave drive mechanism and the horizontal plane is adjusted to -45°.

[0054] The first wave drive mechanism drives the water flow to flow at an angle upwards, horizontally, or downwards, while the second wave drive mechanism drives the water flow to flow downwards, allowing the water to circulate within container 1 and creating more stable waves. Furthermore, by adjusting the rotation angle of the regulating plate 45 of the first wave drive mechanism, the direction of the water flow can be changed, enabling the creation of different types of waves.

[0055] Some embodiments of this utility model also provide a testing system, which includes the wave simulation test device described above. The testing system can be used to simulate wind and wave impact tests.

[0056] It should also be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0057] In the description of this utility model, it should be understood that the terms "upper", "lower", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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 this utility model.

[0058] In addition, in the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be interpreted broadly. For example, they can refer to mechanical connection or electrical connection, or the internal connection of two components. They can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0059] The above embodiments are only used to illustrate the present utility model, and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model. The patent protection scope of the present utility model should be defined by the claims.

Claims

1. A wavy mode simulation test device for a photovoltaic module, characterized by, The wave simulation test device includes: A container used to hold the test water; A float, which is disposed inside the container and can float on the water surface under the action of the test water, is used to mount the photovoltaic module to be tested; A connecting rope, one end of which is connected to the container and the other end of which is connected to the float; A first wave drive mechanism is disposed on one side wall of the container, and the first wave drive mechanism is used to drive the test water body in a first direction; A second wave drive mechanism is disposed on the other side wall of the container. The second wave drive mechanism is used to drive the test water body in a second direction. The first direction and the second direction are different extension directions. The controller is connected to the first wave drive mechanism and the second wave drive mechanism via signals.

2. The wave simulation test apparatus according to claim 1, characterized by The first direction extends horizontally or extends obliquely horizontally; the second direction extends vertically or extends obliquely vertically.

3. The wave simulation test apparatus according to claim 1, characterized by The first wave drive mechanism and the second wave drive mechanism each include a fixed groove extending horizontally and having a slot, a fixed plate disposed in the fixed groove, a water pump and multiple water inlet pipes. The fixed plate has multiple water outlets along its length. The outlet of the water pump is connected to the multiple water outlets, and the inlet of the water pump is connected to the multiple water inlet pipes. The ends of each water inlet pipe are exposed outside the fixed groove and located inside the container. The controller is signal-connected to the water pump.

4. The wave simulation test apparatus according to claim 3, characterized by The first wave drive mechanism and the second wave drive mechanism also include an adjustment plate rotatably connected to the fixed groove via a rotating shaft and a motor for driving the rotating shaft to rotate and thus driving the adjustment plate to rotate. The rotating shaft extends horizontally, and the adjustment plate is located at the groove opening and in front of the water flow at the outlet. The adjustment plate is used to adjust the direction of the water flow at the outlet.

5. The wave simulation test apparatus according to claim 4, characterized by The water pump has a flow velocity of 3–15 m / s and a frequency of 0.1–2 Hz; and / or, The water pump has one or more; and / or the water pump is disposed between the fixed plate and the fixed groove.

6. The wave simulation test apparatus according to claim 3, wherein The slot opening of the fixing groove of the first wave drive mechanism is set opposite to the slot opening of the fixing groove of the second wave drive mechanism.

7. The wave simulation test apparatus according to claim 1, wherein The connecting ropes are multiple in number, with one end of each rope connected to the float in sequence along the circumference of the float; the other end of each rope is connected to the bottom area of ​​the container in sequence along the circumference of the container.

8. The wave simulation test apparatus according to claim 7, characterized by The container is a cube or cuboid; and / or, The float includes connecting parts on opposite sides and mounting parts at both ends that are respectively connected to the connecting parts on both sides. The photovoltaic module is mounted on the mounting part. There are four connecting ropes. Two of the four connecting ropes are respectively connected to the two ends of the connecting part on one side, and the other two connecting ropes are respectively connected to the two ends of the connecting part on the other side.

9. The wave simulation test apparatus according to claim 1, characterized in that, The photovoltaic modules are tilted and mounted on the floating body.

10. A test system, characterized by The testing system includes the wave simulation test apparatus according to any one of claims 1 to 9.

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