Photovoltaic module generating capacity simulation test device

Abstract

The utility model relates to the technical field of photovoltaic module power generation capacity testing, and discloses a photovoltaic module generating capacity simulation testing device which comprises a testing box, the inner wall of the bottom of the testing box is fixedly connected with a support for placing a photovoltaic module, and the outer wall of the support is provided with a clamping mechanism for fixing the photovoltaic module conveniently. An LED lamp set is installed on the inner wall of the top, located over the photovoltaic assembly, of the test box, a shadow shielding assembly, a temperature control module and an electric quantity measuring module are installed on the outer wall of the test box, and accurate simulation and test of the generating capacity of the photovoltaic assembly are achieved through the LED lamp set, the shadow shielding assembly, the temperature control module, the electric quantity measuring module and the microprocessor.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic module power generation capacity testing, and in particular to a photovoltaic module power generation simulation test device. Background Art

[0002] With the transformation of the global energy structure, photovoltaic power generation technology has been widely used. As the core part of the photovoltaic power generation system, the performance of photovoltaic modules directly affects the power generation efficiency of the entire system. Therefore, it is particularly important to accurately test the performance of photovoltaic modules;

[0003] At present, the power generation capacity of photovoltaic modules is usually tested manually. By building an experimental power station, the power generation capacity of photovoltaic modules is compared and analyzed. The experiment lasts for more than half a year. This method has high manpower and construction costs, and mostly depends on the actual environment. It is affected by many factors such as weather, light intensity, temperature, etc. It is difficult to accurately simulate and test the power generation of photovoltaic modules. The experimental data often deviates from the real data. Therefore, a photovoltaic module power generation simulation test device is proposed to solve the above problems.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In view of the above problems, the utility model provides a photovoltaic module power generation simulation test device, which can simulate the power generation of photovoltaic modules under different light intensities and temperature conditions, and provides an effective means for performance testing of photovoltaic modules.

[0006] The photovoltaic module power generation simulation test device provided in this application adopts the following technical solution:

[0007] A photovoltaic module power generation simulation test device comprises a test box, the bottom inner wall of the test box is fixedly connected to a bracket for placing the photovoltaic module, the outer wall of the bracket is installed with a clamping mechanism for fixing the photovoltaic module, the top inner wall of the test box is located directly above the photovoltaic module and is installed with an LED light group, and the outer wall of the test box is installed with a shadow shielding component, a temperature control module and an electric quantity measurement module;

[0008] The shadow shielding assembly includes slide rails fixedly connected to the inner walls of both sides of the test box, the inner walls of the two slide rails are slidably connected with shielding plates, one end of the shielding plates penetrates and extends out of the test box, the bottom outer wall of the shielding plates is fixedly connected with a rack, the back outer wall of the test box is rotatably connected with a gear, the gear is meshed with the rack, and a servo motor is fixedly installed on the back outer wall of the test box, and the output shaft of the servo motor is fixedly connected to the gear;

[0009] The electric quantity measuring module comprises an ammeter and a voltmeter installed on the outer wall of one side of the test box, the ammeter and the voltmeter are both electrically connected to the photovoltaic assembly, and a microprocessor is installed on the outer wall of the test box on the side where the ammeter and the voltmeter are located, and the ammeter and the voltmeter are both electrically connected to the microprocessor.

[0010] Preferably, the temperature control module includes a refrigerator, a hot air blower and a temperature controller installed on the outer wall of one side of the test box, the cold end of the refrigerator is located in the inner cavity of the test box, and the hot end is located outside the test box, the output port of the hot air blower is connected to the inner cavity of the test box, and the refrigerator and the hot air blower are electrically connected to the temperature controller.

[0011] Preferably, a temperature sensor for detecting the surface temperature of the photovoltaic module is installed on the inner wall of the test box, and the temperature sensor is electrically connected to the temperature controller.

[0012] Preferably, the clamping mechanism includes a fixed block fixedly connected to the top outer wall of one end of the bracket, a convex slide groove is provided on the middle outer wall of the bracket, a convex slider is slidably connected to the inner wall of the convex slide groove, a moving block is fixedly connected to the top outer wall of the convex slider, and buffer pads are provided on the outer walls opposite to the moving block and the fixed block, and the two buffer pads are in contact with the outer walls on both sides of the photovoltaic module.

[0013] Preferably, the clamping mechanism also includes a threaded rod rotatably connected to the bottom outer wall of the bracket, the bottom outer wall of the convex sliding block is fixedly connected to a nut seat, the nut seat is meshed with the threaded rod, and one end of the threaded rod passes through the bracket and is fixedly connected to a handle.

[0014] Preferably, the front outer wall of the test box is hinged with a box door via a hinge.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] 1. Use LED light groups as light sources to simulate the light intensity and spectral distribution of sunlight. By adjusting the brightness and color temperature of the LED light groups, the lighting conditions at different times and locations can be simulated. The shadow shielding components can drive the shielding plate to move to simulate the shadow shielding conditions that the photovoltaic modules may encounter in actual operation. The shadow shielding components can set different shadow shielding degrees and shielding positions to test the power generation of the photovoltaic modules under shadow shielding;

[0017] 2. Through the temperature control module, the refrigerator and the hot air blower are used. The working status of the refrigerator and the hot air blower are adjusted by the temperature controller to simulate the temperature changes of the photovoltaic modules in actual operation. Different temperature conditions can be set as needed to test the power generation of the photovoltaic modules at different temperatures. At the same time, the surface temperature of the photovoltaic modules is monitored in real time by the temperature sensor to ensure the accuracy of the test results;

[0018] 3. Through the power measurement module, the output current and output voltage of the photovoltaic module are measured in real time using an ammeter and a voltmeter, so as to calculate the power generation of the photovoltaic module. The data of the power measurement module is processed and analyzed through the microprocessor. The microprocessor can generate visual data such as power generation curve and power generation distribution diagram to help users understand the power generation performance of the photovoltaic module more intuitively.

[0019] 4. The clamping mechanism installed on the bracket can drive the moving block to move, so that the distance between the fixed block and the moving block can be adjusted, which can adapt to the fixation of photovoltaic modules of different sizes. At the same time, the bracket is made of high thermal conductivity material to ensure that the heat generated by the photovoltaic module during operation can be dissipated in time to avoid affecting the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of an embodiment of the application;

[0021] Figure 2 is a first partial cross-sectional view of an embodiment of the application;

[0022] Figure 3 is a first partial cross-sectional view of an embodiment of the application;

[0023] Figure 4 is a first rear perspective view of an embodiment of the application;

[0024] Figure 5 for Figure 4 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 6 It is a second rear perspective view of the embodiment of the application.

[0026] Explanation of the accompanying drawings: 1. test box; 2. box door; 3. LED light group; 4. slide rail; 5. baffle plate; 6. rack; 7. gear; 8. servo motor; 9. refrigerator; 10. hot air blower; 11. temperature controller; 12. ammeter; 13. voltmeter; 14. microprocessor; 15. temperature sensor; 16. bracket; 17. fixed block; 18. convex slide groove; 19. convex slider; 20. moving block; 21. nut seat; 22. threaded rod; 23. handle; 24. buffer pad. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-6 This application is described in further detail.

[0028] The present application embodiment discloses a photovoltaic module power generation simulation test device. Figure 1-6 A photovoltaic module power generation simulation test device includes a test box 1, a bracket 16 for placing a photovoltaic module is fixedly connected to the bottom inner wall of the test box 1, the bracket 16 is made of a high thermal conductivity material, and a clamping mechanism for fixing the photovoltaic module is installed on the outer wall of the bracket 16. The test box 1 is located directly above the photovoltaic module and an LED light group 3 is installed on the top inner wall. A shadow shielding component, a temperature control module and an electric quantity measurement module are installed on the outer wall of the test box 1;

[0029] The shadow shielding assembly includes a slide rail 4 fixedly connected to the inner walls of both sides of the test box 1, the inner walls of the two slide rails 4 are slidably connected with a shielding plate 5, one end of the shielding plate 5 passes through and extends outside the test box 1, the bottom outer wall of the shielding plate 5 is fixedly connected with a rack 6, the back outer wall of the test box 1 is rotatably connected with a gear 7, the gear 7 is meshed with the rack 6, and a servo motor 8 is fixedly installed on the back outer wall of the test box 1, and the output shaft of the servo motor 8 is fixedly connected to the gear 7;

[0030] The electricity measurement module includes an ammeter 12 and a voltmeter 13 installed on the outer wall of one side of the test box 1. The ammeter 12 and the voltmeter 13 are both electrically connected to the photovoltaic module. A microprocessor 14 is installed on the outer wall of the test box 1 on the side where the ammeter 12 and the voltmeter 13 are located. The ammeter 12 and the voltmeter 13 are both electrically connected to the microprocessor 14.

[0031] The temperature control module includes a refrigerator 9, a hot air blower 10 and a temperature controller 11 installed on the outer wall of one side of the test box 1. The cold end of the refrigerator 9 is located in the inner cavity of the test box 1, and the hot end is located outside the test box 1. The output port of the hot air blower 10 is connected to the inner cavity of the test box 1. The refrigerator 9 and the hot air blower 10 are both electrically connected to the temperature controller 11. A temperature sensor 15 for detecting the surface temperature of the photovoltaic module is installed on the inner wall of the test box 1, and the temperature sensor 15 is electrically connected to the temperature controller 11.

[0032] The clamping mechanism includes a fixed block 17 fixedly connected to the top outer wall of one end of the bracket 16, a convex slide groove 18 is provided on the middle outer wall of the bracket 16, a convex slider 19 is slidably connected to the inner wall of the convex slide groove 18, a moving block 20 is fixedly connected to the top outer wall of the convex slider 19, and buffer pads 24 are provided on the outer walls opposite to the moving block 20 and the fixed block 17, and the two buffer pads 24 are in contact with the outer walls of the photovoltaic module on both sides.

[0033] The clamping mechanism also includes a threaded rod 22 rotatably connected to the bottom outer wall of the bracket 16, and a nut seat 21 is fixedly connected to the bottom outer wall of the convex slider 19. The nut seat 21 is engaged with the threaded rod 22. One end of the threaded rod 22 passes through the bracket 16 and is fixedly connected to a handle 23.

[0034] The front outer wall of the test box 1 is hinged with a box door 2. Closing the box door 2 can seal the inner cavity of the test box 1 to prevent external factors from affecting the test accuracy of the photovoltaic module. Opening the box door 2 facilitates the removal of the photovoltaic module.

[0035] The implementation principle of the photovoltaic module power generation simulation test device of the embodiment of the present application is as follows: when actually used, open the box door 2, place the photovoltaic module to be tested on the bracket 16, and make one end side wall of the photovoltaic module against the fixed block 17, and turn the handle 23 through the clamping mechanism, the handle 23 drives the threaded rod 22 to rotate, so that the threaded rod 22 rotates on the inner surface of the nut seat 21, and then drives the nut seat 21 to drive the convex slider 19 to slide on the inner wall of the convex slide groove 18, at this time, the convex slider 19 drives the moving block 20 to slide gradually close to the other end side wall of the photovoltaic module, clamping it and fixing it, and the two buffer pads 24 will contact with the photovoltaic module to play a buffering role. Since the buffer pad 24 has a certain softness, it can prevent the fixed block 17 and the moving block 20 from rigidly contacting with the photovoltaic module and damaging the photovoltaic module;

[0036] After the photovoltaic module is fixed, connect the output end of the photovoltaic module to the ammeter 12 and the voltmeter 13, as shown in the figure. Figure 3 As shown, the wiring can be passed through the wiring hole opened below the microprocessor 14 to pass outside the test box 1, which is convenient for wiring connection. After the wiring is completed, the box door 2 can be closed to conduct the test;

[0037] First, turn on the LED light group 3, and use the LED light group 3 as a light source to simulate the light intensity and spectral distribution of sunlight. By adjusting the brightness and color temperature of the LED light group 3, the lighting conditions at different times and places can be simulated. The servo motor 8 is started through the shadow shielding component. The output end of the servo motor 8 drives the gear 7 to rotate, and then the gear 7 drives the gear 6 meshing with it to move. The gear 6 drives the shielding plate 5 to slide on the inner walls of the two slide rails 4. At this time, the shielding plate 5 can move to simulate the shadow shielding situation that the photovoltaic module may encounter in actual operation. The shadow shielding component can set different shadow shielding degrees and shielding positions to test the power generation of the photovoltaic module under shadow shielding;

[0038] Then, through the temperature control module, a refrigerator 9 and a hot air blower 10 are used. After the refrigerator 9 is connected to an external power supply, its cold end starts to cool, thereby reducing the temperature of the inner cavity of the test box 1, while a large amount of heat is generated at the hot end, and the heat is taken away by its external cooling fan. When the hot air blower 10 is started, the external air can be heated and blown to the inner cavity of the test box 1, thereby increasing the temperature of the inner cavity of the test box 1. The working states of the refrigerator 9 and the hot air blower 10 are adjusted by the temperature controller 11 to simulate the temperature change of the photovoltaic module in actual operation. Different temperature conditions can be set as needed to test the power generation of the photovoltaic module at different temperatures. At the same time, the surface temperature of the photovoltaic module is monitored in real time by the temperature sensor 15 to ensure the accuracy of the test results.

[0039] Finally, the output current and output voltage of the photovoltaic module are measured in real time by the electric quantity measurement module using the ammeter 12 and the voltmeter 13, so as to calculate the power generation of the photovoltaic module, and the data of the electric quantity measurement module are processed and analyzed by the microprocessor 14. The microprocessor 14 can generate visual data such as power generation curve and power generation distribution diagram to help users understand the power generation performance of the photovoltaic module more intuitively.

[0040] In summary, accurate simulation and testing of the power generation of the photovoltaic module is achieved through the LED light group 3, the shadow shielding component, the temperature control module, the power measurement module and the microprocessor 14.

[0041] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0042] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0043] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A photovoltaic module power generation simulation test device, comprising a test box (1), characterized in that: The bottom inner wall of the test box (1) is fixedly connected to a bracket (16) for placing a photovoltaic module, the outer wall of the bracket (16) is installed with a clamping mechanism for fixing the photovoltaic module, the top inner wall of the test box (1) is located directly above the photovoltaic module and is installed with an LED light group (3), and the outer wall of the test box (1) is installed with a shadow shielding component, a temperature control module and an electric quantity measurement module; The shadow shielding assembly comprises a slide rail (4) fixedly connected to the inner walls of both sides of the test box (1), the inner walls of the two slide rails (4) are slidably connected with a shielding plate (5), one end of the shielding plate (5) passes through and extends outside the test box (1), the bottom outer wall of the shielding plate (5) is fixedly connected with a rack (6), the back outer wall of the test box (1) is rotatably connected with a gear (7), the gear (7) is meshed with the rack (6), and a servo motor (8) is fixedly installed on the back outer wall of the test box (1), and the output shaft of the servo motor (8) is fixedly connected with the gear (7); The electric quantity measurement module comprises an ammeter (12) and a voltmeter (13) installed on an outer wall of one side of the test box (1); the ammeter (12) and the voltmeter (13) are both electrically connected to the photovoltaic assembly; a microprocessor (14) is installed on an outer wall of the test box (1) located on the side where the ammeter (12) and the voltmeter (13) are located; the ammeter (12) and the voltmeter (13) are both electrically connected to the microprocessor (14).

2. A photovoltaic module power generation simulation test device according to claim 1, characterized in that: The temperature control module comprises a refrigerator (9), a hot air blower (10) and a temperature controller (11) installed on an outer wall of one side of the test box (1); the cold end of the refrigerator (9) is located in the inner cavity of the test box (1), and the hot end is located outside the test box (1); the output port of the hot air blower (10) is connected to the inner cavity of the test box (1); and the refrigerator (9) and the hot air blower (10) are both electrically connected to the temperature controller (11).

3. A photovoltaic module power generation simulation test device according to claim 2, characterized in that: A temperature sensor (15) for detecting the surface temperature of the photovoltaic module is installed on the inner wall of the test box (1), and the temperature sensor (15) is electrically connected to the temperature controller (11).

4. A photovoltaic module power generation simulation test device according to claim 1, characterized in that: The clamping mechanism comprises a fixed block (17) fixedly connected to the top outer wall of one end of the bracket (16); a convex sliding groove (18) is provided on the middle outer wall of the bracket (16); a convex sliding block (19) is slidably connected to the inner wall of the convex sliding groove (18); a moving block (20) is fixedly connected to the top outer wall of the convex sliding block (19); and buffer pads (24) are provided on the outer walls of the moving block (20) and the fixed block (17) opposite to each other; the two buffer pads (24) are in contact with the outer walls of both sides of the photovoltaic module.

5. A photovoltaic module power generation simulation test device according to claim 4, characterized in that: The clamping mechanism also includes a threaded rod (22) rotatably connected to the bottom outer wall of the bracket (16); the bottom outer wall of the convex sliding block (19) is fixedly connected to a nut seat (21); the nut seat (21) is meshed with the threaded rod (22); one end of the threaded rod (22) passes through the bracket (16) and is fixedly connected to a handle (23).

6. A photovoltaic module power generation simulation test device according to claim 1, characterized in that: The front outer wall of the test box (1) is hingedly connected with a box door (2) via hinges.

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