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Optically-focused flexible double-shaft tracking-type photovoltaic and photo-thermal support

A dual-axis tracking and concentrating technology, which is applied to the support structure of photovoltaic modules, the fixed base/bracket of solar collectors, photovoltaic modules, etc., can solve the problems of high lubrication requirements, short service life, and large floor space. question

Pending Publication Date: 2018-04-20
杨大楼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shortcomings of the steel frame installed on the ground are: 1. It occupies a large area, and the installation of the rigid support has high requirements on the ground conditions, destroying the vegetation on the ground, consuming a large amount of steel, and high cost
2. The volatility is strong, and the protective glass on the front panel of the photovoltaic panel reflects sunlight on the non-noon period, which leads to short power generation time and low efficiency of the photovoltaic panel
3. Among the existing photovoltaic brackets, the sun tracking system mostly uses gear transmission structure, push rod connecting rod structure, hydraulic cylinder or bearing, etc. The gear transmission and push rod connecting rod structure are easy to be damaged by the vibration of the bracket when used in the field, while the hydraulic The lubrication requirements of the system and bearing pairs are high, the installation and maintenance costs are high, and the service life is short
[0005] 1. In the state where external restraint structural components such as flexible rods are not installed, the flexible cable rack swings and jumps greatly in severe weather such as strong winds, which cannot guarantee the safety and stability of the overall support structure
[0006] 2. When the flexible rotary unit is deformed by force in the north-south direction, its rotation will be affected, which in turn will affect the accuracy of the east-west tracking of the photovoltaic panel

Method used

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  • Optically-focused flexible double-shaft tracking-type photovoltaic and photo-thermal support
  • Optically-focused flexible double-shaft tracking-type photovoltaic and photo-thermal support
  • Optically-focused flexible double-shaft tracking-type photovoltaic and photo-thermal support

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Such as figure 1 , 2 , 3, the concentrating flexible dual-axis tracking photovoltaic and photothermal support of the present invention includes a south bearing frame and a north bearing frame arranged in a north-south direction, and a flexible flexible frame installed between the south and north bearing frames Cable frame, a plurality of photovoltaic panels 26 or photothermal tubes arranged at intervals along the north-south direction on the flexible cable frame; the structure of the south and north bearing frames is the same, including the east column 1 and the west column 2 arranged at intervals in the east-west direction, and the east column 1, the west column 1,2 and the anchorage foundation are all fixed by a number of pulling wires 12.1, 12.2; the east and west columns 1, 2 are fixedly connected by the upper beam 3 and the lower beam 4 to form a rectangular frame, and the At least one set of flexible two-axis tracking adjustment system is arranged in the rectangu...

Embodiment 2

[0052] Such as Figure 4 , 5 As shown, the differences between this embodiment and embodiment 1 are: first, the photovoltaic panel 26 uses a double-sided photovoltaic panel structure, and second, a reflective device is provided under the flexible cable frame.

[0053] Described reflective device comprises rectangular rigid frame 27, is arranged on the concave reflective film 28 on described rectangular rigid frame 27, and the two ends of four sides of rectangular rigid frame 27 are respectively connected with arc tension cable 29, and rectangular rigid frame 27 A plurality of support rods 30 extending downward are arranged at intervals on each side, and the lower ends of each support rod 30 are respectively connected with corresponding arc-shaped tension cables 29 to form a chord structure; the south of the rectangular rigid frame 27 The side end and the north end are respectively connected with the corresponding south bearing frame and the north bearing frame. When the rect...

Embodiment 3

[0056] Such as Image 6 As shown, under the application condition of a very large north-south span, the present invention can adopt a short-span multi-segment structure to reduce the stress on the support column and the flexible grommet, and increase the structural stability. The short-span multi-stage structure is a plurality of concentrating flexible dual-axis tracking photovoltaic and photothermal supports described in the present invention are connected along the south and north directions; each concentrating flexible biaxial tracking photovoltaic, photovoltaic The elevation angle adjustment mode of the thermal support photovoltaic panel 26 or the photothermal tube and the east and west tracking adjustment mode are the same as those in Embodiment 1, and are adjusted synchronously.

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Abstract

The invention discloses an optically-focused flexible double-shaft tracking-type photovoltaic and photo-thermal support, and the support comprises a southern carrying frame and a northern carrying frame, wherein the southern carrying frame and the northern carrying frame are arranged in a south / north direction. The support also comprises a flexible cable frame which is disposed between the southern carrying frame and the northern carrying frame, and a plurality of photovoltaic plates or photo-thermal pipes which are arranged on the flexible cable frame at intervals. The structures of the southern carrying frame and the northern carrying frame are the same, and are respectively provided with an east vertical column and a west vertical column, which are arranged at an interval. The east vertical column and the west vertical column are fixedly connected through an upper cross beam and a lower cross beam to form a rectangular frame, and the interior of the rectangular frame is provided with at least one group of flexible double-shaft tracking adjustment system. The flexible double-shaft tracking adjustment system consists of a photovoltaic plate or photo-thermal pipe east and west tracking adjustment system and a photovoltaic plate or photo-thermal pipe depression and elevation adjustment system. The support is advantageous in that the support improves the wind-driven swinging andvibration capability of the flexible double-shaft tracking-type photovoltaic and photo-thermal support, prevents the shaking under severe conditions (big wind) from causing the side turn and verticaljump of the photovoltaic plate, and achieves the purpose of improving the stability and reliability of the flexible double-shaft tracking-type photovoltaic and photo-thermal support.

Description

technical field [0001] The invention relates to a biaxial tracking photovoltaic support, in particular to a concentrating flexible biaxial tracking photovoltaic and photothermal support. Background technique [0002] At present, solar photovoltaic power generation mostly adopts the method of installing steel frames on the ground to support photovoltaic panels. The shortcomings of the steel frame installed on the ground are: 1. It occupies a large area, and the installation of the rigid support has high requirements on the ground conditions, destroying the vegetation on the ground, consuming a large amount of steel, and high cost. 2. The volatility is strong, and the protective glass on the front panel of the photovoltaic panel reflects sunlight against sunlight during non-noon hours, resulting in short power generation time and low efficiency of photovoltaic panels. 3. Among the existing photovoltaic brackets, the sun tracking system mostly uses gear transmission structure,...

Claims

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Application Information

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IPC IPC(8): H02S20/32H02S40/22F24S25/50
CPCH02S20/32H02S40/22Y02E10/52
Inventor 杨大楼
Owner 杨大楼
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