Tracking type photovoltaic intensifying device

Abstract

The invention relates to the technical field of photovoltaic light intensifying devices, in particular to a tracking type photovoltaic light intensifying device which comprises side supporting frame rods, a front face tracking adjusting mechanism, a double-face photovoltaic assembly, a lower mounting frame plate and a back face tracking adjusting mechanism. The front tracking adjusting mechanism comprises a speed reducing motor, a cross beam rotating shaft and a mounting bracket; the top of one end of the outer side of each side supporting frame rod is provided with a speed-reducing motor, and the output end of each speed-reducing motor is provided with a beam rotating shaft. The front tracking adjusting mechanism on the side supporting frame rod can drive the front face of the double-face photovoltaic module to track the sun trajectory so that the front face of the double-face photovoltaic module can obtain the maximum solar irradiance, and the back tracking adjusting mechanism can automatically adjust the angle according to the sun position so that the back face of the double-face photovoltaic module can obtain the maximum solar irradiance. Therefore, the generating capacity of the back surface of the double-sided photovoltaic module can be greatly improved, and the generating efficiency of the double-sided photovoltaic module is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic brightness enhancement devices, and in particular to a tracking photovoltaic brightness enhancement device. Background Art

[0002] Photovoltaic light-enhancing devices improve power generation efficiency by increasing the amount of light received by photovoltaic modules. They generally use devices such as reflectors to reflect sunlight to the back of photovoltaic panels, thereby achieving a light-enhancing effect.

[0003] Traditional photovoltaic tracking brackets significantly increase the solar radiation received by the front of double-sided photovoltaic modules, but the irradiance improvement on the back of the photovoltaic modules is limited. It is impossible to adjust the angle of the reflector according to the position of the sun, so that sunlight cannot be accurately reflected to the back of the photovoltaic panel, which greatly reduces the functionality of the light-enhancing device.

[0004] Therefore, in view of the problem that the above-mentioned traditional light-enhancing device has a relatively simple structure and cannot accurately track and adjust the angle of the reflector according to the position of the sun, so that the sunlight cannot be accurately reflected to the back of the photovoltaic panel, the present invention designs a tracking photovoltaic light-enhancing device to increase the solar radiation energy obtained on the back of the photovoltaic panel. Summary of the invention

[0005] In order to overcome the problem that the traditional light enhancement device has a relatively simple structure and cannot accurately track and adjust the angle of the reflector according to the position of the sun, so that the sunlight cannot be accurately reflected to the back of the photovoltaic panel.

[0006] The technical solution of the present invention is: a tracking photovoltaic light-enhancing device, comprising a side support frame, a front tracking adjustment mechanism, a double-sided photovoltaic module, a lower mounting frame plate and a back tracking adjustment mechanism; a front tracking adjustment mechanism capable of tracking the direction of solar radiation for adjustment is installed at the upper outer end of the side support frame, a double-sided photovoltaic module is installed at the outer side of the front tracking adjustment mechanism, a lower mounting frame plate is fixedly connected to the lower end of the front tracking adjustment mechanism, a back tracking adjustment mechanism capable of enabling the back of the double-sided photovoltaic module to obtain the maximum solar irradiance is installed at the outer side of the lower mounting frame plate, and the front tracking adjustment mechanism comprises a reduction motor, a beam rotating shaft and a mounting bracket; a reduction motor is installed at the top of one outer end of the side support frame, a beam rotating shaft is installed at the output end of the reduction motor, and a mounting bracket connected to the bottom of the double-sided photovoltaic module is installed at the upper end of the beam rotating shaft.

[0007] Preferably, the front tracking adjustment mechanism on the side support frame can drive the front of the double-sided photovoltaic module to track the trajectory of the sun, so that the front of the double-sided photovoltaic module obtains the maximum solar irradiance, and the back tracking adjustment mechanism can automatically adjust the angle according to the position of the sun, so that the back of the double-sided photovoltaic module can obtain the maximum solar irradiance, thereby greatly improving the power generation of the back of the double-sided photovoltaic module and further improving the power generation efficiency of the double-sided photovoltaic module.

[0008] Preferably, the side support frame rod includes a load-bearing base, a compression-resistant reinforcement vertical rod and a motor mounting support plate; the upper end of the load-bearing base is fixedly connected to the compression-resistant reinforcement vertical rod, and the lower end of the reduction motor is equipped with a motor mounting support plate connected to the side end of the compression-resistant reinforcement vertical rod, and the installation position of the motor mounting support plate can be adjusted and set accordingly according to design requirements.

[0009] Preferably, the reverse tracking adjustment mechanism includes an electric push rod, a telescopic rod, a slider, a guide rail, a long connecting rod, a short connecting rod, a bearing seat, a reflector rotation axis and a reflector body; the electric push rod is installed on the side end of the lower mounting frame plate, and the telescopic rod is installed on the movable end of the electric push rod. The electric push rod can drive the telescopic rod to adjust and push left and right.

[0010] Preferably, a slider is installed on the outside of the telescopic rod, a guide rail is installed on the outside of the slider, a long connecting rod is installed on the outside of the guide rail, a short connecting rod is hinged on the upper end of the long connecting rod, and the lengths of the long connecting rod and the short connecting rod can be adjusted according to usage requirements.

[0011] Preferably, a bearing seat is installed on the upper end of the short connecting rod, a reflector rotating shaft is installed on both sides of the bearing seat, a reflector body is installed on the upper end of the reflector rotating shaft, and multiple groups of reflector rotating shafts and reflector bodies can be provided, and the number of the two is the same.

[0012] Preferably, the lower mounting frame plate is a door-type structure consisting of a short plate, a long plate and a side plate. Mounting screw holes are opened through the short plate. The short plate is detachably connected to the bottom of the beam rotation axis by bolts. The installation position of the lower mounting frame plate can also be adjusted and set accordingly according to design requirements.

[0013] As a preferred method, the back-side light enhancement tracking algorithm of the bifacial photovoltaic module is as follows:

[0014] Step 1: First, calculate the output power of the back side of the bifacial photovoltaic module under ideal conditions according to the bifacial photovoltaic module irradiance model, bifacial photovoltaic module temperature model and bifacial photovoltaic module power output model;

[0015] Step 2: Then calculate the output power of the back of the photovoltaic module in the current state. When the difference between the output energy of the back of the photovoltaic module in the ideal state and the output energy in the current state is greater than the energy consumption required for tracking of the light-enhancing reflector body, the reflector body starts tracking.

[0016] Beneficial effects of the present invention:

[0017] 1. The front tracking adjustment mechanism on the side support frame can drive the front of the double-sided photovoltaic module to track the trajectory of the sun, so that the front of the double-sided photovoltaic module can obtain the maximum solar irradiance, and the back tracking adjustment mechanism can automatically adjust the angle according to the position of the sun, so that the back of the double-sided photovoltaic module can obtain the maximum solar irradiance, thereby greatly improving the power generation of the back of the double-sided photovoltaic module. Compared with the traditional light-enhancing device that cannot accurately track and adjust the angle of the reflector body according to the position of the sun, the photovoltaic light-enhancing device can greatly increase the solar radiation energy obtained by the back of the photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the tracking photovoltaic light-enhancing device of the present invention;

[0019] Figure 2 Shown is a three-dimensional structural schematic diagram of the reverse tracking adjustment mechanism in the tracking photovoltaic light enhancement device of the present invention;

[0020] Figure 3 What is shown is a flow chart of the tracking algorithm of the tracking photovoltaic light enhancement device of the present invention.

[0021] Explanation of the reference numerals in the accompanying drawings: 1. Side support frame rod; 3. Double-sided photovoltaic module; 4. Lower mounting frame plate; 101. Load-bearing base; 102. Compression-resistant reinforcement vertical rod; 103. Motor mounting support plate; 201. Reducer motor; 202. Crossbeam rotation axis; 203. Mounting bracket; 501. Electric push rod; 502. Telescopic rod; 503. Slider; 504. Guide rail; 505. Long connecting rod; 506. Short connecting rod; 507. Bearing seat; 508. Reflector rotation axis; 509. Reflector body. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] See also Figure 1-Figure 2The present invention provides an embodiment: a tracking photovoltaic light-enhancing device, comprising a side support frame rod 1, a front tracking adjustment mechanism, a double-sided photovoltaic module 3, a lower mounting frame plate 4 and a back tracking adjustment mechanism; the upper end of the outer side of the side support frame rod 1 is equipped with a front tracking adjustment mechanism that can track the direction of solar radiation for adjustment, the double-sided photovoltaic module 3 is installed on the outer side of the front tracking adjustment mechanism, the lower end of the front tracking adjustment mechanism is fixedly connected with the lower mounting frame plate 4, the outer side of the lower mounting frame plate 4 is equipped with a back tracking adjustment mechanism that can enable the back of the double-sided photovoltaic module 3 to obtain the maximum solar irradiance, the front tracking adjustment mechanism includes a reduction motor 201, a beam rotating shaft 202 and a mounting bracket 203; the side support frame rod 1 is equipped with a front tracking adjustment mechanism that can track the direction of solar radiation for adjustment, the double-sided photovoltaic module 3 is installed on the outer side of the front tracking adjustment mechanism, the lower end of the front tracking adjustment mechanism is fixedly connected with the lower mounting frame plate 4, the outer side of the lower mounting frame plate 4 is equipped with a back tracking adjustment mechanism that can enable the back of the double-sided photovoltaic module 3 to obtain the maximum solar irradiance, and the front tracking adjustment mechanism includes a reduction motor 201, a beam rotating shaft 202 and a mounting bracket 203; A reduction motor 201 is installed at the top of one end of the outer side of the support rod 1, and a beam rotating shaft 202 is installed at the output end of the reduction motor 201. A mounting bracket 203 connected to the bottom of the double-sided photovoltaic module 3 is installed at the upper end of the beam rotating shaft 202. The front tracking adjustment mechanism on the side support rod 1 can drive the front of the double-sided photovoltaic module 3 to track the sun's trajectory, so that the front of the double-sided photovoltaic module obtains the maximum solar irradiance, and the back tracking adjustment mechanism can automatically adjust the angle according to the position of the sun, so that the back of the double-sided photovoltaic module 3 can obtain the maximum solar irradiance, thereby greatly improving the power generation of the back of the double-sided photovoltaic module 3 and further improving the power generation efficiency of the double-sided photovoltaic module 3.

[0024] See also Figure 2In this embodiment, the side support frame rod 1 includes a load-bearing base 101, a compression-resistant reinforcement vertical rod 102 and a motor mounting support plate 103; the upper end of the load-bearing base 101 is fixedly connected to the compression-resistant reinforcement vertical rod 102, and the lower end of the reduction motor 201 is equipped with a motor mounting support plate 103 connected to the side end of the compression-resistant reinforcement vertical rod 102. The installation position of the motor mounting support plate 103 can be adjusted and set accordingly according to design requirements. The reverse tracking adjustment mechanism includes an electric push rod 501, a telescopic rod 502, a slider 503, a guide rail 504, a long connecting rod 505, a short connecting rod 506, a bearing seat 507, a reflector rotating shaft 508 and a reflector body 509; an electric push rod 501 is installed on the side end of the lower mounting frame plate 4, and a telescopic rod 502 is installed on the movable end of the electric push rod 501. The electric push rod 501 can drive the telescopic rod 502 to adjust and push left and right. The outer side of the telescopic rod 502 is installed There is a slider 503, a guide rail 504 is installed on the outside of the slider 503, a long connecting rod 505 is installed on the outside of the guide rail 504, the upper end of the long connecting rod 505 is hingedly connected to a short connecting rod 506, the lengths of the long connecting rod 505 and the short connecting rod 506 can be adjusted according to the needs of use, a bearing seat 507 is installed on the upper end of the short connecting rod 506, and a reflector rotating shaft 508 is installed on both sides of the bearing seat 507, and a reflector body 509 is installed on the upper end of the reflector rotating shaft 508. The reflector rotating shaft 508 and the reflector body 509 can be set in multiple groups, and the number of the two is the same. The lower mounting frame plate 4 is a door-shaped structure composed of a short plate, a long plate and a side plate, and the short plate is provided with mounting screw holes. The short plate is detachably connected to the bottom of the beam rotating shaft 202 by bolts. The installation position of the lower mounting frame plate 4 can also be adjusted and set accordingly according to the design needs. The back light enhancement tracking algorithm of the double-sided photovoltaic module 3 is as follows:

[0025] Step 1: First, according to the irradiance model of the bifacial photovoltaic module 3, the temperature model of the bifacial photovoltaic module 3 and the power output model of the bifacial photovoltaic module 3, the output power of the back side of the bifacial photovoltaic module 3 under the ideal state is calculated;

[0026] Step 2: Then calculate the output power of the back of the photovoltaic module in the current state. When the difference between the output energy of the back of the photovoltaic module in the ideal state and the output energy in the current state is greater than the energy consumption required for tracking by the light-enhancing reflector body 509, the reflector body 509 starts tracking.

[0027] When working, starting the reduction motor 201 can drive the beam rotating shaft 202 to rotate, so that the front side of the double-sided photovoltaic module 3 can track the trajectory of the sun;

[0028] Then, according to the irradiance model of the double-sided photovoltaic module 3, the temperature model of the double-sided photovoltaic module 3 and the power output model of the double-sided photovoltaic module 3, the output power of the back side of the double-sided photovoltaic module 3 under the ideal state is calculated, and the output power of the back side of the photovoltaic module under the current state is calculated. When the difference between the output energy of the back side of the photovoltaic module under the ideal state and the output energy under the current state is greater than the energy consumption required for tracking of the light-enhancing reflector body 509, the reflector body 509 starts tracking, and the electric push rod 501 is started, and the telescopic rod 502 can perform telescopic movement, so that the long connecting rod 505 can drive the short connecting rod 506 to move, and further the reflector rotating shaft 508 drives the reflector body 509 to rotate, so that the back side of the double-sided photovoltaic module 3 can obtain the maximum solar irradiance, which can greatly improve the power generation of the back side of the double-sided photovoltaic module 3.

[0029] Through the above steps, by setting the front tracking adjustment mechanism on the side support frame rod 1, the front side of the double-sided photovoltaic module 3 can be driven to track the solar trajectory, so that the front side of the double-sided photovoltaic module obtains the maximum solar irradiance, and the back side tracking adjustment mechanism can automatically adjust the angle according to the position of the sun, so that the back side of the double-sided photovoltaic module 3 obtains the maximum solar irradiance, thereby greatly improving the power generation of the back side of the double-sided photovoltaic module 3, and further improving the power generation efficiency of the double-sided photovoltaic module 3, so as to solve the problem that the traditional light enhancement device cannot accurately track and adjust the angle of the reflector body 509 according to the position of the sun, resulting in the inability to accurately reflect sunlight to the back of the photovoltaic panel.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A tracking photovoltaic light-enhancing device, comprising a side support frame 1; characterized in that: It also includes a front tracking adjustment mechanism, a double-sided photovoltaic module 3, a lower mounting frame plate 4 and a back tracking adjustment mechanism; a front tracking adjustment mechanism that can track the direction of solar radiation for adjustment is installed at the upper end of the outer side of the side support frame rod 1, a double-sided photovoltaic module 3 is installed on the outer side of the front tracking adjustment mechanism, the lower end of the front tracking adjustment mechanism is fixedly connected to the lower mounting frame plate 4, and a back tracking adjustment mechanism that can rotate at an angle so that the back of the double-sided photovoltaic module 3 obtains the maximum solar irradiance is installed on the outer side of the lower mounting frame plate 4, and the front tracking adjustment mechanism includes a reduction motor 201, a beam rotating shaft 202 and a mounting bracket 203; a reduction motor 201 is installed at the top of one end of the outer side of the side support frame rod 1, a beam rotating shaft 202 is installed at the output end of the reduction motor 201, and a mounting bracket 203 connected to the bottom of the double-sided photovoltaic module 3 is installed on the upper end of the beam rotating shaft 202.

2. The tracking photovoltaic enhancement device according to claim 1, characterized in that: The side support frame rod 1 includes a load-bearing base 101, a compression-resistant reinforcement vertical rod 102 and a motor mounting support plate 103; the upper end of the load-bearing base 101 is fixedly connected to the compression-resistant reinforcement vertical rod 102, and the lower end of the reduction motor 201 is equipped with a motor mounting support plate 103 connected to the side end of the compression-resistant reinforcement vertical rod 102.

3. The tracking photovoltaic enhancement device according to claim 1, characterized in that: The reverse tracking adjustment mechanism includes an electric push rod 501, a telescopic rod 502, a slider 503, a guide rail 504, a long connecting rod 505, a short connecting rod 506, a bearing seat 507, a reflector rotating shaft 508 and a reflector body 509; the electric push rod 501 is installed on the side end of the lower mounting frame plate 4, and the telescopic rod 502 is installed on the movable end of the electric push rod 501.

4. The tracking photovoltaic enhancement device according to claim 3, characterized in that: A slider 503 is installed on the outer side of the telescopic rod 502 , a guide rail 504 is installed on the outer side of the slider 503 , a long connecting rod 505 is installed on the outer side of the guide rail 504 , and a short connecting rod 506 is hingedly connected to the upper end of the long connecting rod 505 .

5. The tracking photovoltaic enhancement device according to claim 4, characterized in that: A bearing seat 507 is installed at the upper end of the short connecting rod 506 , a reflector rotating shaft 508 is installed on both sides of the bearing seat 507 , and a reflector body 509 is installed at the upper end of the reflector rotating shaft 508 .

6. The tracking photovoltaic enhancement device according to claim 1, characterized in that: The lower mounting frame plate 4 is a door-shaped structure composed of a short plate, a long plate and a side plate. The short plate is provided with mounting screw holes, and the short plate is detachably connected to the bottom of the beam rotating shaft 202 by bolts.

7. The tracking photovoltaic enhancement device according to claim 1, characterized in that: The back-side light enhancement tracking algorithm of the bifacial photovoltaic module 3 is as follows: Step 1: First, according to the irradiance model of the bifacial photovoltaic module 3, the temperature model of the bifacial photovoltaic module 3 and the power output model of the bifacial photovoltaic module 3, the output power of the back side of the bifacial photovoltaic module 3 under the ideal state is calculated; Step 2: Then calculate the output power of the back of the photovoltaic module in the current state. When the difference between the output energy of the back of the photovoltaic module in the ideal state and the output energy in the current state is greater than the energy consumption required for tracking by the light-enhancing reflector body 509, the reflector body 509 starts tracking.

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