Photovoltaic tracking bracket and eccentric compensation device

A technology of compensation device and support device, applied in the direction of control using feedback, can solve problems such as manufacturing and installation of tracking brackets

Pending Publication Date: 2019-09-20
SHANGHAI MOKUN NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although these methods can also achieve the coincidence of the axis of rotation and the center of gravity of t

Method used

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  • Photovoltaic tracking bracket and eccentric compensation device
  • Photovoltaic tracking bracket and eccentric compensation device
  • Photovoltaic tracking bracket and eccentric compensation device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0037] figure 1 and figure 2 It shows that the eccentricity compensation device 10 is applied to a photovoltaic tracking bracket 20 . The function or orientation of the eccentricity compensation device 10 is described below by taking the photovoltaic tracking bracket 20 as an example, but it does not limit the application environment of the eccentricity compensation device 10. The eccentricity compensation device 10 can also be applied to other similar scenarios that require eccentricity compensation. in scenarios involving rotating bodies.

[0038] The photovoltaic tracking bracket 20 includes a rotating body 202 and a column 201 , and the rotating body 202 is rotatably supported by the column 201 . The rotating body 202 may include, for example, a main beam 202a extending along a north-south direction (or a front-rear direction) and a photovoltaic module 202b supported by the main beam 202a. The main beam 202a is rotatably supported by two uprights 201 arranged separatel...

no. 2 example

[0048] see below Figure 6 to Figure 8B The second embodiment is described, and the second embodiment uses the component numbers and partial content of the first embodiment, wherein the same numbers are used to denote the same or similar components, and the description of the same technical content is selectively omitted. For the description of the omitted part, reference may be made to the first embodiment, and the second embodiment will not be repeated.

[0049] In the first embodiment, the connecting member 4 is a sector wheel, while in the second embodiment, in the eccentric compensation device 10', the connecting member is a straight rod 4'. see Image 6 and Figure 7 , The end 400 of the straight rod 4' has a rope hole 402, and the end 32 of the flexible member 3 is fixed on the straight rod 4' through the rope hole 402.

[0050] For example, if Figure 8A and 8B As shown, the straight bar 4' is generally C-shaped, including two opposite vertical plates 401 and a ho...

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PUM

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Abstract

The invention provides an eccentric compensation device which is used for a rotating body. The eccentric compensation device comprises a supporting device, an elastic piece, a flexible piece and a connecting piece, wherein the elastic piece is supported by the supporting device, the supporting device allows the elastic piece to be stretched and deformed, the head end of the flexible piece is in transmission connection with the elastic piece, the tail end of the flexible piece is connected with the connecting piece, and the connecting piece is used for being connected with the rotating body and rotates along with the rotating body; when the connecting piece rotates along with the rotating body, the connecting piece pulls the elastic piece through the flexible piece to force the elastic piece to generate elastic force, and additional torque generated by the fact that the gravity center of the rotating body is not coincident with the rotating central line is balanced by means of the elastic force. The invention also provides a photovoltaic tracking bracket comprising the eccentric compensation device. The eccentric compensation device can overcome the additional torque caused by eccentricity.

Description

technical field [0001] The invention relates to an eccentric compensation device, which is especially suitable for photovoltaic tracking brackets. Background technique [0002] In the photovoltaic power generation system, the flat single-axis tracking bracket is one of the most commonly used photovoltaic array brackets. Since the bracket can track the change of the sun’s azimuth angle during the day, the total annual power generation of photovoltaic modules using the flat single-axis tracking bracket needs to be It is 15%-25% higher than the total annual power generation of photovoltaic modules using the best fixed tilt bracket. [0003] Usually, the center of rotation of the tracking rotating part of the flat single-axis tracking support is at the center or below the section of the main beam. Since photovoltaic modules are generally installed on the main beam, the center of gravity of the rotating part of the tracking support is often not at the center of rotation. This ma...

Claims

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Application Information

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IPC IPC(8): G05D3/12
CPCG05D3/12
Inventor 郭家宝刘霄高峰赵国强
Owner SHANGHAI MOKUN NEW ENERGY TECH
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