A flexible thin-film photovoltaic module fatigue simulation test device

Abstract

The present application relates to a kind of flexible thin film photovoltaic module fatigue simulation test device, belong to thin film material test technical field, including test module, motion execution module, wind field module, measurement module, control module, pedestal.Motion execution module contains pull twist actuator mechanism, test module is connected with motion execution module, one end is fixed end, the other end is actuation end, is connected with pull twist actuator mechanism;Pull twist actuator mechanism generates stretch and torsion motion independently, and is transmitted to test module.The wind field module generates certain speed airflow, acts on the upper surface of test module, measurement module monitors surface airflow speed, clamping end tensile force and torsional moment and stretch displacement and torsion angle data, control module realizes the motion control of entire test device.The present application can realize stretch, torsion and aerodynamic force independent and coupled effect to test module, and enriches thin film material fatigue simulation ground test means.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of thin film material testing, and particularly relates to a flexible thin film photovoltaic module fatigue simulation testing device. BACKGROUND

[0002] The flexible thin film photovoltaic module is a light-weight photovoltaic module with the ability to convert light energy into electrical energy, and is widely used in various solar-powered unmanned aircraft. It is not only an energy conversion component, but also an upper wing surface load-bearing skin.

[0003] With the increase in the size of aircraft and spacecraft, the shortcomings of traditional mechanical structures, such as large mass, many fasteners, and low reliability, are becoming increasingly apparent. Thin film structures have the advantages of light weight and modular design, and have become a type of aircraft and spacecraft structure with broad application prospects. Currently, thin film structures have been well applied in spacecraft and components such as solar sails, thin film photovoltaic module arrays, inflatable antennas, and space telescopes.

[0004] The upper wing surface of a large solar-powered unmanned aircraft is equipped with a flexible photovoltaic module array of the order of hundreds of square meters, which can be approximately regarded as a thin film structure, and is a collection of semiconductor materials and flexible thin film materials. The flexible photovoltaic module array is formed by one-time lamination of high-molecular thin film materials with high light transmittance and good mechanical properties, flexible gallium arsenide cells, and hot melt glue under high temperature and vacuum conditions, and has the advantages of small mass, thin thickness, and the ability to bend without damage under large curvature radii.

[0005] Due to its light weight, weak stiffness, and strong nonlinearity, the flexible photovoltaic module array is prone to deformation and vibration when subjected to interference. The thin film structure itself has limited carrying capacity and cannot even carry the load when it is severely relaxed. The flexible photovoltaic module array serves as the upper wing surface skin of the solar-powered unmanned aircraft and is an effective dynamic load component, and is significantly affected by the combined mechanical working conditions of alternating tension, torsion, and aerodynamic force during long-haul flight. Therefore, simulating the fatigue loading mode of the flexible photovoltaic module array through a ground device, exploring its failure mode and maximum fatigue tolerance under fatigue, and optimizing the design of the flexible photovoltaic module array, selecting and improving the mechanical properties of the packaging material, and achieving long-haul flight of the solar-powered unmanned aircraft have important guiding significance.

[0006] Through looking up the relevant literature and patent information of the fatigue simulation test device of the flexible thin-film photovoltaic module, no similar literature and patent reports are found. At present, the commonly used tensile testing machine and fatigue machine can only complete the single stretching or torsion alone, even if there is a fatigue machine with stretching and torsion functions, it does not have the function of simulating the action of aerodynamic force; so it cannot select the respective single action and simultaneous action of stretching, torsion and aerodynamic force, which does not conform to the mechanical working condition. In addition, the existing tensile testing machine and fatigue machine require that the width range of the test sample to be clamped is small, generally not more than 50mm, which is not applicable to the flexible thin-film photovoltaic module. SUMMARY

[0007] The technical problem solved by the present application is to overcome the shortcomings of the prior art and provide a fatigue simulation test device for flexible thin-film photovoltaic module, which solves the problem that it is difficult for the flexible thin-film photovoltaic module to simulate the flight working condition through ground means and carry out fatigue simulation test under the single action or simultaneous action of stretching, torsion and aerodynamic force.

[0008] The technical solution of the present application is: a fatigue simulation test device for flexible thin-film photovoltaic module, the flexible photovoltaic module bears the role of the wing surface skin of the aircraft; comprising a test component module, a fixing clamp, a tensile-torsional actuating mechanism, a wind field module, a measurement module and a control module;

[0009] The test component module uses the flexible photovoltaic module as the test material, one end is a fixed end connected with the fixing clamp, and the other end is an actuating end connected with the tensile-torsional actuating mechanism;

[0010] The tensile-torsional actuating mechanism independently generates stretching motion and torsional motion, and can transmit the stretching motion and the torsional motion to the test component module together;

[0011] The wind field module generates airflow with a certain speed, which acts on the upper surface of the test component module, and is used for simulating the aerodynamic force of the test component module caused by the relative motion of the aircraft during flight;

[0012] The measurement module is used for real-time monitoring of the airflow speed, stretching force, torsional torque, stretching displacement and torsional angle data on the surface of the test component module;

[0013] The control module is used for motion control of the device, and issues the stretching displacement, stretching frequency, torsional angle, torsional frequency parameters to the tensile-torsional actuating mechanism, and issues the wind speed size parameter to the wind field module.

[0014] Further, the test component module comprises a flexible thin-film photovoltaic module, a first tensile-torsional connecting structure and a second tensile-torsional connecting structure.

[0015] Flexible thin film photovoltaic module, two ends are connected with first tensile torsion adapter structure and second tensile torsion adapter structure respectively;

[0016] The first tensile torsion adapter structure is bolted with the fixed clamp as a fixed end.

[0017] The second tensile torsion adapter structure is bolted with the tensile torsion actuating mechanism as an actuating end.

[0018] Further, the first tensile torsion adapter structure and the second tensile torsion adapter structure are made of carbon fiber material.

[0019] Further, the length of the first tensile torsion adapter structure and the second tensile torsion adapter structure is not less than 700 mm.

[0020] Further, the tensile torsion actuating mechanism comprises a tensile motion unit, a torsion motion unit, a torsion clamp and a torsion mechanism adapter structure.

[0021] The tensile motion unit generates linear reciprocating motion to realize the stretching of the flexible thin film photovoltaic module.

[0022] The torsion motion unit generates rotary motion to realize the torsion of the flexible thin film photovoltaic module.

[0023] The torsion mechanism adapter structure is connected to the part where the tensile motion unit generates linear reciprocating motion, and the linear displacement generated by the tensile motion unit is transmitted to the torsion mechanism adapter structure to drive the torsion mechanism adapter structure to move linearly. The torsion motion unit is connected with the torsion mechanism adapter structure and is installed above the tensile motion unit. The stretching and torsion actions are coupled together through the torsion mechanism adapter structure.

[0024] The torsion clamp is bolted with the second tensile torsion adapter structure on the opening side and is indirectly connected with the torsion motion unit through the measurement module on the other side to transmit the stretching and torsion motion to the flexible thin film photovoltaic module.

[0025] Further, the tensile motion unit comprises a tensile motion motor and a tensile linear module.

[0026] The tensile motion motor is installed at the end flange of the tensile linear module, and the motion is transmitted through the shaft coupling. The tensile linear module is internally provided with a ball screw to convert the rotary motion of the tensile motion motor into linear motion.

[0027] Further, the torsion motion unit comprises a torsion mechanism and a torsion motion motor.

[0028] The torsion mechanism is a gear-driven torsion turntable. The torsion motion motor is installed at the interface flange of the torsion mechanism. The torsion motion motor drives the torsion turntable to rotate to generate torsion action.

[0029] Further, the measuring module comprises a tensile motion encoder, a torsional motion encoder, a six-dimensional force sensor, and a wind speed sensor.

[0030] The tensile motion encoder is integrally installed at the end of the tensile motion motor, and is used for recording the rotation number of the tensile motion motor and calculating the displacement of the tensile linear module.

[0031] The torsional motion encoder is integrally installed at the end of the torsional motion motor, and is used for measuring the torsional angle.

[0032] The six-dimensional force sensor is connected with the torsional mechanism at one end and connected with the torsional fixture at the other end, and is used for measuring the tensile force and extrusion force generated by the tensile motion and the torque generated by the torsional motion.

[0033] The wind speed sensor is used for detecting the air flow speed of the wind field module acting on the upper surface of the flexible thin-film photovoltaic module.

[0034] Further, the wind field module comprises a blower and a wind pipe.

[0035] The inlet side of the blower is connected with the wind pipe, and the generated air flow acts on the upper surface of the flexible thin-film photovoltaic module through the wind pipe; the wind direction is changed by adjusting the direction of the air outlet of the wind pipe, and the surface wind speed is adjusted to simulate the working conditions of different flight speeds.

[0036] Further, the wind pipe support is connected with the wind pipe, and bears the self-gravity of the wind pipe through the supporting mode of limiting clamping.

[0037] The beneficial effects of the present application compared with the prior art are as follows:

[0038] (1) The present application integrates the tensile motion unit and the torsional motion unit, simultaneously uses the blower and the wind pipe to provide the wind field, and compared with the conventional tensile testing machine, not only realizes the tensile and torsional motions, but also considers the influence of the air flow force. The tensile, torsional and aerodynamic forces can not only independently act on the test object, but also simultaneously realize the combined action, and have the advantages of various action forms and high simulation restoration degree of working conditions.

[0039] (2) The present application designs the tensile-torsional joint structure, and designs the connection and assembly mode with the test sample, cooperates with the clamping parts of the tensile and torsional motion units, and can realize the fatigue simulation test of the flexible thin-film photovoltaic module below 700 mm under the independent action or coupling action of the tensile, torsional and aerodynamic forces, and enriches the test means of the product.

[0040] (3) The present application can quantize and record the maximum fatigue resistance number of the test object, and has important guiding significance for the fatigue resistance optimization design of the flexible photovoltaic module, the selection and improvement of the mechanical properties of the packaging material, and the realization of the super-long endurance of the solar unmanned aerial vehicle.

[0041] (4) The whole application adopts the modular design idea, has good universality and maintainability, and is also applicable to similar thin film materials. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 It is the overall schematic view of the fatigue simulation test device of the embodiment of the application;

[0043] Figure 2 It is the schematic view of the test assembly module of the embodiment of the application;

[0044] Figure 3 It is the schematic view of the pull-torsion joint structure of the embodiment of the application;

[0045] Figure 4 It is the partial schematic view of the fatigue simulation test device of the embodiment of the application;

[0046] Figure 5 It is the schematic view of the motion execution module of the fatigue simulation test device of the embodiment of the application;

[0047] Figure 6 It is the schematic view of the fixed clamp of the embodiment of the application;

[0048] Figure 7 It is the schematic view of the torsion clamp of the embodiment of the application;

[0049] Figure 8 It is the schematic view of the control module of the fatigue simulation test device of the embodiment of the application;

[0050] Figure 9 It is the hardware component diagram of the control module of the fatigue simulation test device of the embodiment of the application;

[0051] Figure 10 It is the schematic view of the cabinet of the embodiment of the application. DETAILED DESCRIPTION

[0052] The application will be further described below in combination with the drawings.

[0053] The fatigue simulation test device of the flexible thin film photovoltaic assembly of the application is composed of a test assembly module, a motion execution module, a wind field module, a measurement module and a control module.

[0054] The test assembly module comprises a flexible thin film photovoltaic assembly 6, a first pull-torsion joint structure 5 and a second pull-torsion joint structure 7. The flexible thin film photovoltaic assembly 6 is a kind of semiconductor thin film material with light weight and is the test object of the device. After the test object is glued and solidified with the first pull-torsion joint structure 5 and the second pull-torsion joint structure 7, one end is connected with the fixed clamp 4, and the other end is connected with the pull-torsion clamp 15, is installed in the motion execution module and transmits the motion.

[0055] The motion execution module comprises a tensile motion unit, a torsional motion unit, a tensile-torsional clamp 15 and a fixed clamp 4. The tensile motion unit is capable of independently generating tensile motion, and the torsional motion unit is capable of independently generating torsional motion. The tensile motion unit is composed of a tensile linear module 11 and a tensile motion motor 10, and the torsional motion unit is composed of a torsional mechanism 13 and a torsional motion motor 17. The fixed clamp 4 is bolted with the first tensile-torsional connecting structure 5 and serves as a fixed end of the fatigue simulation test, and the torsional clamp 15 is bolted with the tensile-torsional connecting structure 7 and serves as an actuating end of the fatigue simulation test.

[0056] The wind field module comprises a blower 1 and a wind pipe 2, and is used for generating an airflow field with a certain speed. The airflow field is generated by the blower 1 and acts on the upper surface of the flexible thin-film photovoltaic module 6 through the wind pipe 2.

[0057] The measurement module comprises a wind speed sensor 12, a force sensor and an encoder. The wind speed sensor 12 measures the wind speed on the surface of the flexible thin-film photovoltaic module 6, the force sensor monitors the force and torque generated by the clamping end, and the encoder is composed of a tensile motion encoder 9 and a torsional motion encoder 16, which respectively record the tensile displacement and the torsional angle.

[0058] The control module realizes the control of the entire test device. The industrial computer 20 is used for sending instructions to realize the execution of the motion program, including but not limited to the start of the motion, the setting of the motion parameters, the stop of the motion and the change.

[0059] The base is a bearing structure and a mounting reference of the above-mentioned modules, and is composed of a wind pipe support 3 and a cabinet 8. The inlet side of the wind pipe 2 is connected with the blower 1, the outlet side of the wind pipe 2 is mounted on the wind pipe support 3, and the wind pipe support 3 is fixed on the cabinet 1 to prevent the occurrence of adverse phenomena such as overturning and vibration during work. The motion execution module and the measurement module are mounted above the cabinet 1, and the control module, such as the industrial computer 20, the display 19, the controller and the driver, is mounted inside the cabinet.

[0060] Figure 1 It is a general schematic view of the flexible thin-film photovoltaic module fatigue simulation test device in the embodiment of the present application.

[0061] As shown in Figure 2 The test component module mainly comprises the flexible thin-film photovoltaic module 6, the first tensile-torsional connecting structure 5 and the second tensile-torsional connecting structure 7. The first tensile-torsional connecting structure 5 and the second tensile-torsional connecting structure 7 are consistent in structure, and the length thereof can support the photovoltaic module with a maximum width of about 700 mm to perform the test.

[0062] As shown in Figure 3As shown, the second tensile-torsional transition structure 7 is provided with a mounting threaded hole 701 on the side connected with the motion execution module, and a groove 702 is formed on the side connected with the flexible thin-film photovoltaic module 6; the flexible thin-film photovoltaic module 6 is glued by filling adhesive in the grooves of the first tensile-torsional transition structure 5 and the second tensile-torsional transition structure 7, and forms a connection relationship with the first tensile-torsional transition structure 5 and the second tensile-torsional transition structure 7 after solidification.

[0063] As shown in Figure 4 , Figure 5 , Figure 6 , the motion execution module mainly includes: a fixed clamp 4, a tensile motion motor 10, a tensile linear module 11, a torsion mechanism 13, a torsion clamp 15, a torsion motion motor 17, and a torsion mechanism transition structure 18.

[0064] As shown in Figure 4 , the tensile motion motor 10 and the tensile linear module 11 form a tensile motion unit. The tensile motion motor 10 is installed at the end flange of the tensile linear module 11 and transmits motion through a shaft coupling. The tensile linear module 11 is internally provided with a ball screw, which converts the rotary motion of the tensile motion motor 10 into linear motion, thereby realizing the stretching of the flexible thin-film photovoltaic module 6.

[0065] As shown in Figure 5 , the torsion mechanism 13 and the torsion motion motor 17 form a torsion motion unit, which realizes the torsion of the flexible thin-film photovoltaic module 6. The torsion mechanism 13 has various forms, and a common form is a gear-driven torsion turntable. The torsion motion motor 17 is installed at the interface flange of the torsion mechanism 13.

[0066] The torsion mechanism transition structure 18 is connected to the structure that generates linear motion of the tensile linear module 11. The linear displacement generated by the tensile linear module 11 is transmitted to the torsion mechanism transition structure 18, which drives the torsion mechanism transition structure 18 to move linearly on the tensile linear module 11. The torsion motion unit is installed above the tensile motion unit through the torsion mechanism transition structure 18. Through the connection action of the torsion mechanism transition structure 18, the torsion motion unit and the torsion motion unit are integrated, realizing the coupling of stretching and torsion.

[0067] As shown in Figure 6 , the fixed clamp 4 includes a reinforcing rib 401 and a boss 402, wherein the boss 402 is provided with a through hole 403. The boss 402 of the fixed clamp is a limiting structure that plays a mechanical limiting role and gap fits with the first tensile-torsional transition structure 5, which can quickly realize the installation and positioning of the test assembly module. The fixed clamp 4 and the first tensile-torsional transition structure 5 are bolted through the through hole 403, serving as the fixed end of the fatigue simulation test. The reinforcing rib 401 increases the strength, stiffness, and stability of the structure of the fixed clamp 4.

[0068] As shown in Figure 7 , the torsion clamp 15 includes a clamping structure 1501 and a six-dimensional force sensor adapter structure 1502, the clamping structure 1501 is fixedly connected to the end face of the six-dimensional force sensor adapter structure 1502, wherein the clamping structure 1501 is provided with a through hole. The torsion clamp 15 is bolted to the second tension-torsion adapter structure 7 through the clamping structure 1501, serving as the actuating end of the fatigue simulation test. The six-dimensional force sensor 14 is installed between the torsion clamp 15 and the torsion mechanism 13, one side is bolted to the end face of the six-dimensional force sensor adapter structure 1502 without the clamping structure, and the other side is connected to the torsion mechanism 13. The six-dimensional force sensor 14 transmits the force and torque generated by the stretching motion and the torsion motion, and collects the force and torque data during the test for online observation and storage analysis.

[0069] As shown in Figure 1 , the wind field module mainly includes a blower 1 and a wind pipe 2.

[0070] The inlet side of the blower 1 is connected to the wind pipe 2, and the generated airflow passes through the wind pipe 2 and acts on the upper surface of the flexible thin-film photovoltaic module 6. The wind field module is used to simulate the relative motion of the airflow during the flight of the aircraft, i.e. the influence of the aerodynamic force on the flexible thin-film photovoltaic module 6, and to simulate different flight speed conditions by adjusting the surface wind speed.

[0071] As shown in Figure 4 , Figure 5 , the measurement module mainly includes a stretching motion encoder 9, a wind speed sensor 12, a six-dimensional force sensor 14, and a torsion motion encoder 16.

[0072] The stretching motion encoder 9 is integratedly installed at the end of the stretching motion motor 10, used to record the number of revolutions of the stretching motion motor 10, and indirectly calculate the displacement of the stretching linear module 11. The torsion motion encoder 16 is integratedly installed at the end of the torsion motion motor 17, used to measure the torsion angle. The wind speed sensor 12 is bolted to the cabinet 8, used to detect the airflow speed acting on the upper surface of the flexible thin-film photovoltaic module 6 of the wind field module, so as to understand the current wind speed state. The six-dimensional force sensor 14 is directly bolted to the torsion mechanism 13, and has a connection relationship with the flexible thin-film photovoltaic module 6 through the torsion clamp 15 and the second tension-torsion adapter structure 7; the six-dimensional force sensor 14 can measure the tension, extrusion force generated by the stretching motion and the torque generated by the torsion motion, and feedback to the industrial computer 20 for real-time display of the current size.

[0073] As shown in Figure 8 , the control module mainly includes a display 19, an industrial computer 20, a motion controller, and a motor driver.

[0074] As shown in Figure 9As shown, the control module hardware is composed of display 19, industrial computer 20, motion controller, motor driver, etc.; in this embodiment, the human-computer interaction interface software is installed on the industrial computer 20, and the operator can send control instructions through the software, and communicate with the motion controller and the motor driver through Ethernet to realize information transmission. The industrial computer 20 sends the control parameters such as stretching displacement parameters, stretching frequency, torsion angle, torsion frequency, and wind speed to the motion controller, which is translated and sent to the stretching motor driver, the torsion motor driver, and the air blower controller after translation, to drive the stretching motor 10, the torsion motor 17, and the air blower to act, and complete the control of the stretching, torsion trajectory, and wind speed of the flexible thin-film photovoltaic module 6.

[0075] The measurement data of the six-dimensional force sensor 14, the wind speed sensor 12, and the stretching motion encoder 9 and the torsion motion encoder 16 are also transmitted to the industrial computer 20 through the same communication form, and the data is displayed, stored, and recorded in real time for direct observation and subsequent analysis on site.

[0076] As shown in Figure 1 The base mainly includes the air pipe support 3 and the cabinet 8.

[0077] The air pipe support 3 is fixedly connected with the cabinet 8, bears most of the self-gravity of the air pipe 2 through the support mode of limiting clamping, and avoids the occurrence of large amplitude vibration and overturning during the working process of the wind field module.

[0078] As shown in Figure 10 The cabinet 8 is composed of a test platform structure 801, a supporting leg 802, and a profile frame structure 803. The test platform structure 801 provides a good installation plane for the test component module and the measurement module; the supporting leg 802 is a bearing structure of the entire test device, which ensures the stability and balance of the device; and the profile frame structure 803 is the main structure of the cabinet 8, and the control module is installed therein, such as the display 19 and the industrial computer 20.

[0079] The flexible thin-film photovoltaic module fatigue simulation test device disclosed by the application can test the photovoltaic module with a maximum width of about 700 mm; compared with the conventional tensile testing machine, the device not only realizes stretching and torsion movement, but also considers the influence of air flow force. The stretching, torsion, and air dynamic force can independently act on the test object, and can also simultaneously and jointly act, and has the characteristics of multiple fatigue effects. The problem that the flexible thin-film photovoltaic module is difficult to simulate the flight working condition through ground means and carry out fatigue simulation test under the independent action or coupling action of stretching, torsion, and air dynamic force is solved, and the device has good universality and is also suitable for similar thin-film materials.

[0080] When the fatigue simulation test is carried out by using the device, test process data is recorded in real time and stored in the hard disk of the industrial computer, and the data can be exported in batches for further analysis. The test device has strong universality, has a certain degree of digitization and informatization, enriches the fatigue simulation ground test means of the flexible thin film photovoltaic module, reduces the human intervention in the test process, and solves the problems of frequent test data recording, time-consuming and labor-intensive.

[0081] Although the present application has been disclosed with the above preferred embodiments, it is not intended to limit the present application, and any person skilled in the art can make possible changes and modifications to the technical solutions of the present application by using the disclosed methods and technical contents without departing from the spirit and scope of the present application. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, which does not deviate from the technical solutions of the present application, belongs to the protection scope of the technical solutions of the present application.

Claims

1. A fatigue simulation test apparatus for a flexible thin-film photovoltaic module, the flexible photovoltaic module serving as an upper wing skin of an aircraft, characterized in that The test device comprises a test component module, a fixing clamp, a tension-torsion actuating mechanism, a wind field module, a measuring module and a control module. The test component module takes a flexible thin-film photovoltaic component as a test material, one end of which is connected with the fixing clamp as a fixed end, and the other end is connected with the tension-torsion actuating mechanism as an actuating end. The tension-torsion actuating mechanism independently generates a stretching motion and a torsion motion, and can transmit the stretching motion and the torsion motion to the test component module. The wind field module generates airflow with a certain speed, which acts on the upper surface of the test component module, and is used for simulating the aerodynamic force of the relative motion of an aircraft in flight on the test component module. The measuring module is used for monitoring the airflow speed, the stretching force, the torsion torque, and the stretching displacement and the torsion angle data of the test component module in real time. The control module is used for the motion control of the device, and transmits the stretching displacement, the stretching frequency, the torsion angle and the torsion frequency parameters to the tension-torsion actuating mechanism, and transmits the wind speed parameter to the wind field module. The tension-torsion actuating mechanism comprises a stretching motion unit, a torsion motion unit, a torsion clamp (15) and a torsion mechanism adapter structure (18). The stretching motion unit generates a linear reciprocating motion, and realizes the stretching of the flexible thin-film photovoltaic component. The torsion motion unit generates a rotating action, and realizes the torsion of the flexible thin-film photovoltaic component. The torsion mechanism adapter structure (18) is connected to the part where the stretching motion unit generates the linear reciprocating motion, the linear displacement generated by the stretching motion unit is transmitted to the torsion mechanism adapter structure (18), and the torsion mechanism adapter structure (18) is driven to move linearly; the torsion motion unit is connected with the torsion mechanism adapter structure (18) and is installed above the stretching motion unit; the stretching and torsion actions are coupled together through the torsion mechanism adapter structure (18). The torsion clamp (15) is bolted to the actuating end of the test component module on the opening side, and is indirectly connected with the torsion motion unit through the measuring module on the other side, and transmits the stretching and torsion motions to the flexible thin-film photovoltaic component.

2. The fatigue simulation test apparatus for a flexible thin-film photovoltaic module according to claim 1, wherein The test component module comprises a flexible thin-film photovoltaic component (6), a first tension-torsion adapter structure (5) and a second tension-torsion adapter structure (7). The flexible thin-film photovoltaic component (6) is connected with the first tension-torsion adapter structure (5) and the second tension-torsion adapter structure (7) at two ends respectively. The first tension-torsion adapter structure (5) is bolted to the fixing clamp as a fixed end. The second tension-torsion adapter structure (7) is bolted to the tension-torsion actuating mechanism as an actuating end.

3. The fatigue simulation test apparatus for a flexible thin-film photovoltaic module according to claim 2, characterized by The first tension-torsion adapter structure (5) and the second tension-torsion adapter structure (7) are made of carbon fiber material.

4. The fatigue simulation test apparatus for a flexible thin-film photovoltaic module according to claim 2, characterized by The length of the first tension-torsion adapter structure (5) and the second tension-torsion adapter structure (7) is not less than 700 mm.

5. The fatigue simulation test apparatus for a flexible thin-film photovoltaic module according to claim 2, wherein The stretching motion unit comprises a stretching motion motor (10) and a stretching linear module (11). The stretching motion motor (10) is installed at the end flange of the stretching linear module (11), and transmits the motion through a shaft coupling; the stretching linear module (11) is internally provided with a ball screw, which converts the rotating motion of the stretching motion motor (10) into linear motion.

6. The fatigue simulation test apparatus for a flexible thin-film photovoltaic module according to claim 5, wherein The torsion motion unit comprises a torsion mechanism (13) and a torsion motion motor (17). The torsion mechanism (13) is a gear-driven torsion turntable. A torsion motion motor (17) is installed on the interface flange of the torsion mechanism (13). The torsion motion motor (17) drives the torsion turntable to rotate, thereby generating a torsion effect.

7. The fatigue simulation test apparatus for a flexible thin-film photovoltaic module according to claim 6, wherein The measurement module includes a tensile motion encoder (9), a torsion motion encoder (16), a six-dimensional force sensor (14), and a wind speed sensor (12). The tensile motion encoder (9) is integrally installed at the end of the tensile motion motor (10) and is used to record the number of rotations of the tensile motion motor (10) and calculate the displacement of the tensile linear module (11). The torsion motion encoder (16) is integrally installed at the end of the torsion motion motor (17) and is used to measure the torsion angle. The six-dimensional force sensor (14) is bolted at one end to the torsion mechanism (13) and at the other end to the torsion clamp (15). It is used to measure the tensile force, extrusion force generated by the tensile motion, and the torque generated by the torsion motion. The wind speed sensor (12) is used to detect the airflow speed of the wind field module acting on the upper surface of the flexible thin-film photovoltaic module (6).

8. The fatigue simulation test apparatus for a flexible thin-film photovoltaic module according to claim 1, wherein The wind field module includes a blower (1) and a wind pipe (2). The inlet side of the blower (1) is connected to the wind pipe (2). The generated airflow passes through the wind pipe (2) and acts on the upper surface of the flexible thin-film photovoltaic module (6). By adjusting the direction of the wind pipe outlet, the wind direction is changed, and by adjusting the surface wind speed, different flight speed working conditions are simulated.

9. The fatigue simulation test apparatus for a flexible thin-film photovoltaic module according to claim 8, wherein It also includes a wind pipe support (3) connected to the wind pipe (2). The wind pipe support (3) bears the self-weight of the wind pipe (2) through a limiting clamping support method.

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