Flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment

Abstract

The invention discloses a flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment, and belongs to the technical field of renewable energy sources. The flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment comprises a plurality of bionic transpiration heat dissipation double-sided photovoltaic panels and supporting structures arranged on the two sides of the double-sided photovoltaic system and used for supporting the bionic transpiration heat dissipation double-sided photovoltaic panels. A wind environment monitoring control module and a hydraulic driving module are arranged on the side portion of the bionic transpiration heat dissipation double-face photovoltaic panel, and the wind environment monitoring control module calculates and controls the hydraulic driving module to adjust the tensioning force of a fiber bundle in the bionic transpiration heat dissipation double-face photovoltaic panel by detecting the wind speed and the wind direction. The wind speed and the wind direction are monitored in real time, the cable force is adjusted in a self-adaptive mode, different wind environments are dynamically adapted, and the overall wind resistance of the structure is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of renewable energy, and particularly relates to a flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment. Background Art

[0002] With the rapid development of flexible photovoltaic technology, the application of flexible photovoltaic brackets has gradually increased. Such photovoltaic brackets not only have the characteristics of light weight and high flexibility, but also can adapt to a variety of complex environments. However, the wind resistance of flexible photovoltaic brackets is relatively limited. Especially under the conditions of high wind speed or frequent wind direction changes, the photovoltaic modules are easily affected by large vibrations and displacements, resulting in frequent occurrence of wind destruction events of photovoltaic structures. There are significant differences in the wind vibration responses of photovoltaic modules at different wind direction angles and in different regions. Traditional anti-wind measures do not fully consider this characteristic and do not carry out refined anti-wind control for different regions and different wind direction angles of flexible photovoltaic structures, which is likely to cause local damage to the flexible photovoltaic structure, and further exacerbate the occurrence of overall structure damage.

[0003] Existing anti-wind technologies mainly improve the anti-wind performance by increasing rigidity or using fixed anti-wind cables, but these methods cannot flexibly adjust the anti-wind performance of the brackets according to the real-time wind speed and wind direction changes. Although traditional fiber bundles can be used to stabilize the vibration of photovoltaic modules, due to their fixed cable forces, they cannot be flexibly adjusted for different wind direction angles or different wind speed conditions, thus affecting the anti-wind effect of photovoltaic brackets. In addition, when photovoltaic modules generate electricity, they are often accompanied by high temperatures, which reduces the service life of photovoltaic structures. At the same time, the electron mobility of semiconductor materials in photovoltaic modules will be significantly reduced in high-temperature environments, thus directly affecting the power generation efficiency of photovoltaic modules.

[0004] Therefore, a flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment is proposed. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment, which solves the problems in the existing technology.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment includes: a plurality of bionic transpiration heat dissipation double-sided photovoltaic panels and a support structure arranged on both sides of the double-sided photovoltaic system for supporting the plurality of bionic transpiration heat dissipation double-sided photovoltaic panels; a wind environment monitoring and control module and a hydraulic drive module are arranged on the side of the bionic transpiration heat dissipation double-sided photovoltaic panel. The wind environment monitoring and control module detects the wind speed and wind direction, calculates and controls the hydraulic drive module to adjust the tensile force of the fiber bundles in the bionic transpiration heat dissipation double-sided photovoltaic panel.

[0008] Further, the bionic transpiration cooling double-sided photovoltaic panel comprises, from top to bottom: an upper main photovoltaic panel, a hydrogel binding layer, and a lower bionic vein pore-opening photovoltaic panel; the fiber bundles are evenly distributed in the bionic transpiration cooling double-sided photovoltaic panel and are wrapped by the hydrogel binding layer.

[0009] Further, both sides of the upper main photovoltaic panel are tempered glass, and photovoltaic cells are encapsulated in the middle, which is used to directly receive solar energy and convert it into electrical energy; both sides of the lower bionic vein pore-opening photovoltaic panel are tempered glass, and special-shaped open-hole photovoltaic cells are encapsulated in the middle, which is used to receive the reflected light from the environment and convert it into electrical energy;

[0010] The material of the hydrogel binding layer is PAAK cross-linked sodium polyacrylate, which can absorb the heat of the bionic transpiration cooling double-sided photovoltaic panel, convert liquid water into water vapor through phase change, and dissipate latent heat through the preset bionic vein pores in the lower bionic vein pore-opening photovoltaic panel.

[0011] Further, after the fiber bundles extend out of the bionic transpiration cooling double-sided photovoltaic panel, they converge and extend into the composite fiber sleeve, and the ends of the fiber bundles extend into the water tank inside the hydraulic drive module. The fiber bundles absorb water from the water tank through capillary action and transport it into the upper hydrogel binding layer for transpiration cooling.

[0012] Further, the fiber bundles are composed of a composite of bamboo fibers and basalt fibers.

[0013] Further, the support structure includes a transverse connecting cable and column brackets arranged on both sides of the double-sided photovoltaic system. The transverse connecting cable is connected to the bionic transpiration cooling double-sided photovoltaic panel and fixed to the upper ends of the column brackets, and the column brackets are fixed to the ground.

[0014] Further, every five bionic transpiration cooling double-sided photovoltaic panels form a photovoltaic unit. A triangular support is arranged between adjacent two photovoltaic units. Three photovoltaic units are arranged between the two column brackets. A transverse load-bearing cable is arranged at the bottom of each triangular support, and the transverse load-bearing cable is connected to the bottom of the triangular support and fixed to the column brackets on both sides.

[0015] Further, the wind environment monitoring and control module includes a wind speed sensor, a wind direction sensor, and a control unit. The control unit is arranged on each hydraulic drive module. The data of the wind direction and wind speed collected by the wind speed sensor and the wind direction sensor are output to the control unit. The control unit combines real-time algorithms, calculates and issues a control signal to the hydraulic drive module to tension the fiber bundles.

[0016] Furthermore, the hydraulic drive module includes a steel shell and a hydraulic rod telescoping mechanism; a fiber bundle connection and fixation hole is provided at the top of the piston rod of the hydraulic rod telescoping mechanism; a fiber bundle hole is provided at the top of the steel shell, and the fiber bundle extends through the fiber bundle hole and is fixed to the fiber bundle connection and fixation hole; when a signal for cable force adjustment is received, the piston rod telescopes to achieve axial tensioning of the fiber bundle.

[0017] Furthermore, the hydraulic drive module further includes a rotating bracket, the steel shell is fixed to the rotating bracket, and the turntable at the bottom of the rotating bracket can swing and rotate in the horizontal direction to achieve horizontal tensioning of the fiber bundle.

[0018] Advantages of the present invention:

[0019] 1. The fiber bundle of the present invention simultaneously realizes water conveyance and heat dissipation and cable force adjustment, and has a high system integration degree.

[0020] 2. The present invention adopts a double-sided photovoltaic structure, makes full use of the reflected and scattered solar energy on the back, and improves the comprehensive utilization rate of solar energy.

[0021] 3. The present invention can monitor the wind speed and wind direction in real time, and adaptively adjust the cable force, dynamically adapt to different wind environments, and improve the wind resistance performance. Under low wind speed conditions, the fiber bundle is weakly tensioned, the overall stiffness of the structure is small, and the flexible photovoltaic structure can dissipate the energy transmitted by the wind load under low wind speed well; under high wind speed conditions, the fiber bundle can move to the most unfavorable position of the structural wind vibration response. At this time, the distance between the movable end and the fixed end of the fiber bundle increases, so that the fiber bundle is in a tensioned state, the stiffness of the flexible photovoltaic structure increases, while reducing the wind vibration response of local dangerous points, the overall wind resistance performance of the structure is improved.

[0022] 4. There are significant differences in the wind vibration responses of the upper and lower parts of the flexible photovoltaic structure under different wind direction angles. The present invention enables the fiber bundle to be controlled in multiple regions through an independent hydraulic drive device, and can accurately match the wind resistance requirements under different wind directions and wind speeds.

[0023] 5. The present invention optimizes the cable force, reduces the damage of wind vibration to the photovoltaic module, and reduces the failures caused by fatigue damage; through the bionic transpiration heat dissipation design, the working temperature of the photovoltaic module is effectively reduced, the problem of premature aging of the structure caused by high temperature is alleviated, and the service life of the photovoltaic module is improved.

[0024] 6. The bionic transpiration heat dissipation double-sided photovoltaic panel of the present invention adopts a passive adaptation design, does not require external control, and has high operating efficiency and economy.

[0025] 7. The present invention realizes three-dimensional dynamic control of the cable force by setting a hydraulic drive module that can swing, rotate left and right, and telescope axially, tensioning the fiber bundle horizontally and axially, and improves the stability of the structure.

[0026] 8. The present invention realizes the wind resistance stability of the photovoltaic panel by setting up horizontal triangular supports and load-bearing cables.

[0027] 9. The present invention is composed of the composite of bamboo fiber and basalt fiber, enabling the fiber bundle to have good tensile and water-conveying properties, thereby realizing the transpiration heat dissipation function of the photovoltaic panel and the stiffness adjustment of the fiber bundle.

[0028] 10. The present invention sets up a lower bionic leaf vein perforated photovoltaic panel, and utilizes the Venturi effect to accelerate the dispersion of water vapor and improve the transpiration heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a schematic diagram of the overall structure of the flexible double-sided photovoltaic system of the present invention;

[0031] Figure 2 It is a side view of the control unit of the double-sided photovoltaic panel of the present invention;

[0032] Figure 3 It is a top view of the control unit of the double-sided photovoltaic panel of the present invention;

[0033] Figure 4 It is a detail view of the bionic transpiration heat dissipation double-sided photovoltaic panel of the present invention;

[0034] Figure 5 It is a sectional view of the lower bionic leaf vein perforated photovoltaic panel of the present invention;

[0035] Figure 6 It is a sectional view of the hydraulic drive module of the present invention;

[0036] Figure 7 It is a schematic diagram of the support structure of the present invention.

[0037] In the figure: 1 - Bionic transpiration heat dissipation double-sided photovoltaic panel, 11 - Upper main photovoltaic panel, 12 - Hydrogel bonding layer, 13 - Fiber bundle, 14 - Lower bionic leaf vein pore-opening photovoltaic panel, 131 - Bamboo fiber, 132 - Basalt fiber, 133 - Composite fiber sleeve, 141 - Opening; 2 - Support structure, 21 - Connecting cable, 22 - Column bracket, 23 - Transverse load-bearing cable, 24 - Triangular support, 221 - I-shaped steel column, 222 - Transverse middle connecting rod, 223 - X-shaped diagonal support, 224 - Transverse upper connecting rod; 3 - Wind environment monitoring and control module, 31 - Wind speed sensor, 32 - Wind direction sensor, 33 - Control unit; 4 - Hydraulic drive module, 41 - Steel shell, 42 - Water tank, 43 - Fiber bundle connection and fixing hole, 44 - Hydraulic rod telescoping mechanism, 45 - Rotating bracket, 411 - Fiber bundle hole, 441 - Piston rod, 451 - Turntable. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] As Figures 1 to 3 shown, a flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment includes: a plurality of bionic transpiration heat dissipation double-sided photovoltaic panels 1 and a support structure 2 provided on both sides of the double-sided photovoltaic system for supporting the plurality of bionic transpiration heat dissipation double-sided photovoltaic panels 1; a wind environment monitoring and control module 3 and a hydraulic drive module 4 are provided on the side of the bionic transpiration heat dissipation double-sided photovoltaic panel 1. The wind environment monitoring and control module 3 calculates and controls the hydraulic drive module 4 by detecting the wind speed and wind direction to adjust the tensile force of the fiber bundle 13 in the bionic transpiration heat dissipation double-sided photovoltaic panel 1.

[0040] As Figure 4 shown, the bionic transpiration heat dissipation double-sided photovoltaic panel 1 sequentially includes from top to bottom: an upper main photovoltaic panel 11, a hydrogel bonding layer 12, a fiber bundle 13, and a lower bionic leaf vein pore-opening photovoltaic panel 14; the upper main photovoltaic panel 11 is the main power generation unit, both sides are tempered glass, and photovoltaic cells are encapsulated in the middle for directly receiving solar energy and converting it into electric energy; the lower bionic leaf vein pore-opening photovoltaic panel 14 is an auxiliary power generation unit, both sides are tempered glass, and opening-shaped special-shaped photovoltaic cells are encapsulated in the middle for receiving the reflected light of the environment and converting it into electric energy.

[0041] The hydrogel bonding layer 12 is placed between the upper main photovoltaic panel 11 and the lower bionic vein pore-opening photovoltaic panel 14. Its material is PAAK cross-linked sodium polyacrylate, which has good water absorption, high-efficiency phase change performance and structural stability. It is used to absorb the heat of the bionic transpiration cooling double-sided photovoltaic panel 1, convert liquid water into water vapor through phase change, and achieve latent heat dissipation through the preset bionic vein pores 141 of the lower bionic vein pore-opening photovoltaic panel 14 (as Figure 5 shown);

[0042] The fiber bundle 13 is composed of bamboo fiber and basalt fiber. Among them, the bamboo fiber has good water absorption and moisture permeability, and the basalt fiber has high tensile strength and elastic modulus. The fiber bundle 13 composed of the two can meet the requirements of water conduction performance and tensile performance. The fiber bundle 13 is evenly distributed in the bionic transpiration cooling double-sided photovoltaic panel 1 and is wrapped by the hydrogel bonding layer 12; as Figure 2 shown, after the fiber bundle 13 extends out of the bionic transpiration cooling double-sided photovoltaic panel 1, it converges and extends into the composite fiber sleeve 131. The composite fiber sleeve 131 can protect the fiber bundle 13 and reduce water loss. The end of the fiber bundle 13 extends into the water tank 42 arranged in the hydraulic drive module 4. The fiber bundle 13 absorbs water from the water tank 42 through capillary action through the formed three-dimensional capillary channels and transports it into the upper hydrogel bonding layer 12, so as to achieve the transpiration cooling effect similar to that of plant leaves and improve the power generation efficiency of the photovoltaic panel.

[0043] As Figure 3 and Figure 7 shown, the support structure 2 includes a transverse connecting cable 21, a column bracket 22, and a triangular support 24. The transverse connecting cable 21 is connected to the bionic transpiration cooling double-sided photovoltaic panel 1 and is fixed to the upper ends of the column brackets 22 on both sides. The column brackets 22 are fixed on the ground;

[0044] The column bracket 22 includes two vertical I-shaped steel columns 221, the bottom of which is fixed on the ground. A transverse middle connecting rod 222 and an X-shaped diagonal support 223 are arranged between the two I-shaped steel columns 221, and a transverse upper connecting rod 224 is arranged on the upper parts of the two I-shaped steel columns 221;

[0045] To improve the overall strength and stiffness of the structure, in this embodiment, one triangular support 24 is provided for every five bionic transpiration cooling double-sided photovoltaic panels 1. The triangular support 24 is composed of one cross bar and two inclined bars; every five photovoltaic panels are connected to form a photovoltaic unit, and one triangular support 24 is arranged between adjacent two photovoltaic units. Three photovoltaic units are arranged between the two column brackets 22. To ensure the structural stability of the photovoltaic panels at the mid-span of the two column brackets 22, a transverse load-bearing cable 23 is arranged at the bottom end of each triangular support 24. The transverse load-bearing cable 23 is connected to the bottom end of each triangular support 24 and is fixed to the column brackets 22 on both sides.

[0046] As shown Figure 2 in FIG. Figure 2 , the wind environment monitoring and control module 3 includes a wind speed sensor 31, a wind direction sensor 32, and a control unit 33. The wind speed sensor 31 and the wind direction sensor 32 are arranged at the upper end of each column support 22 and at the mid-span between the two column supports 22. The collected wind direction and wind speed data are output to the control unit 33. The control unit 33 combines a real-time algorithm to calculate the tension adjustment strategy of the fiber bundle and sends a control signal to the hydraulic drive module 4 to tension the fiber bundle.

[0047] Among them, the wind speed sensor and the wind direction sensor located on the column support 22 monitor and control the wind speed and wind direction of the two photovoltaic units on its left and right sides, and the monitor located at the mid-span monitors and controls the photovoltaic unit at the mid-span, so as to achieve zonal control.

[0048] As shown Figure 6 in FIG. Figure 6 , the hydraulic drive module 4 includes a steel shell 41, a water tank 42, a hydraulic rod telescoping mechanism 44, and a rotating bracket 45. A fiber bundle connection and fixing hole 43 is provided at the top of the piston rod 441 of the hydraulic rod telescoping mechanism 44. A fiber bundle hole 411 is provided at the top of the steel shell 41. The fiber bundle 13 extends into and is fixed to the fiber bundle connection and fixing hole 43 through the fiber bundle hole 411. When receiving a signal for cable force adjustment, the piston rod 441 moves up and down to achieve axial tension of the fiber bundle 13. When encountering a strong wind environment, the hydraulic drive module 4 will tighten the fiber bundle to enhance the wind resistance stability of the bionic transpiration cooling double-sided photovoltaic panel 1.

[0049] In this embodiment, the steel shell 41 is fixed to the rotating bracket 45. As shown Figure 2 in FIG. Figure 2 , the turntable Figure 2 at the bottom of the rotating bracket 45 can swing left and right in the horizontal direction, thereby driving the hydraulic rod telescoping mechanism 44 to rotate and tension the fiber bundle 13 in the horizontal direction, realizing multi-directional control of the cable force of the fiber bundle 13 and improving the structural stability.

[0050] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment, characterized in that, Including: Multiple bionic transpiration cooling double-sided photovoltaic panels (1) and a support structure (2) arranged on both sides of the double-sided photovoltaic system for supporting the multiple bionic transpiration cooling double-sided photovoltaic panels (1); a wind environment monitoring and control module (3) and a hydraulic drive module (4) are arranged on the side of the bionic transpiration cooling double-sided photovoltaic panel (1). The wind environment monitoring and control module (3) detects the wind speed and direction, calculates and controls the hydraulic drive module (4) to adjust the tensile force of the fiber bundles (13) in the bionic transpiration cooling double-sided photovoltaic panel (1).

2. The flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment according to claim 1, wherein The bionic transpiration cooling double-sided photovoltaic panel (1) sequentially includes from top to bottom: an upper main photovoltaic panel (11), a hydrogel bonding layer (12), and a lower bionic leaf vein pore-opening photovoltaic panel (14); the fiber bundles (13) are evenly distributed in the bionic transpiration cooling double-sided photovoltaic panel (1) and are wrapped by the hydrogel bonding layer (12).

3. The flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment according to claim 2, characterized in that, Both sides of the upper main photovoltaic panel (11) are tempered glass, and photovoltaic cells are encapsulated in the middle, which is used to directly receive solar energy and convert it into electrical energy; both sides of the lower bionic leaf vein pore-opening photovoltaic panel (14) are tempered glass, and special-shaped pore-opening photovoltaic cells are encapsulated in the middle, which is used to receive the reflected light of the environment and convert it into electrical energy; The material of the hydrogel bonding layer (12) is PAAK cross-linked sodium polyacrylate, which can absorb the heat of the bionic transpiration cooling double-sided photovoltaic panel (1), convert liquid water into water vapor through phase change, and dissipate latent heat through the preset bionic leaf vein pores (141) in the lower bionic leaf vein pore-opening photovoltaic panel (14).

4. The flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment according to claim 2, characterized in that After the fiber bundles (13) extend out of the bionic transpiration cooling double-sided photovoltaic panel (1), they converge and extend into the composite fiber sleeve (131). The ends of the fiber bundles (13) extend into the water tank (42) inside the hydraulic drive module (4). The fiber bundles (13) absorb water from the water tank (42) through capillary action and transport it into the upper hydrogel bonding layer (12) for transpiration cooling.

5. The flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment according to claim 1, wherein The fiber bundles (13) are composed of a composite of bamboo fibers and basalt fibers.

6. The flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment according to claim 1, wherein The support structure (2) includes a transverse connecting cable (21) and column brackets (22) arranged on both sides of the double-sided photovoltaic system. The transverse connecting cable (21) is connected to the bionic transpiration cooling double-sided photovoltaic panel (1) and is fixed to the upper end of the column bracket (22), and the column bracket (22) is fixed to the ground.

7. The flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment according to claim 6, characterized in that, Every five bionic transpiration cooling double-sided photovoltaic panels (1) form a photovoltaic unit. A triangular support (24) is arranged between adjacent two photovoltaic units. Three photovoltaic units are arranged between the two column brackets (22). A transverse load-bearing cable (23) is arranged at the bottom of each triangular support (24). The transverse load-bearing cable (23) is connected to the bottom of the triangular support (24) and is fixed to the column brackets (22) on both sides.

8. The flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable tension regulation according to claim 1 is characterized in that: The wind environment monitoring and control module (3) includes a wind speed sensor (31), a wind direction sensor (32) and a control unit (33). The control unit (33) is arranged on each hydraulic drive module. The data of wind direction and wind speed collected by the wind speed sensor (31) and the wind direction sensor (32) are output to the control unit (33). The control unit (33) combines real-time algorithms, calculates and issues a control signal to the hydraulic drive module (4) to tension the fiber bundle.

9. The flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment according to claim 1, characterized in that, The hydraulic drive module (4) includes: a steel shell (41) and a hydraulic rod telescopic mechanism (44); a fiber bundle connection and fixing hole (43) is arranged at the top of the piston rod (441) of the hydraulic rod telescopic mechanism (44); a fiber bundle hole (441) is arranged at the top of the steel shell (41). The fiber bundle (13) extends into and is fixed to the fiber bundle connection and fixing hole (43) through the fiber bundle hole (411); when receiving a signal for cable force adjustment, the piston rod (411) expands and contracts to achieve axial tension of the fiber bundle (13).

10. The flexible double-sided photovoltaic system based on bionic transpiration heat dissipation and dynamic cable force adjustment according to claim 9, wherein, The hydraulic drive module (4) further includes a rotating bracket (45). The steel shell (41) is fixed to the rotating bracket (45). The turntable (451) at the bottom of the rotating bracket (45) can swing and rotate in the horizontal direction to achieve horizontal tension of the fiber bundle.

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