Lightweight Two-Axis Solar Panel Tracking Using Rotating Tube Assembly

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Solution Overview

Problem

Existing solar panel tracking systems are heavy and cumbersome, limiting their installation on agricultural land and hindering solar light penetration, while also being complex and costly due to the need for sophisticated two-axis alignment for maximum energy efficiency.

Innovation Solution

A two-axis handling system for solar panels with a lightweight, two-dimensional 'checkerboard' structure using rotating main and secondary tubes with integrated motors and reducing mechanisms, allowing for efficient orientation and assembly, and featuring stepper motors and gear transmission for reliable movement, with a focus on minimizing weight and encumbrance to facilitate agricultural use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If sophisticated two-axis tracking systems are used to maximize energy efficiency, then energy production increases by 35%-40%, but construction complexity and cost increase

Engineering Contradiction:
Improveenergy productionVSAvoidconstruction complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The tracking system is divided into modular components: multiple independent tubes (first tube, second tube, third tube, fourth tube) that can be assembled in a checkerboard pattern. Each tube functions as an independent tracking unit, allowing the system to achieve complex two-axis tracking through simple modular repetition rather than a single complex structure

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from traditional single-plane tracking to three-dimensional checkerboard arrangement. Tubes are positioned at different spatial locations and orientations, creating a multi-dimensional tracking architecture that achieves superior energy capture while maintaining structural simplicity through geometric distribution

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If traditional heavy tracking structures are used to ensure stability and alignment, then tracking reliability improves, but weight and encumbrance increase, limiting installation on agricultural land

Engineering Contradiction:
Improvetracking reliabilityVSAvoidsystem weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The system employs localized stabilization through individual tube structures rather than a heavy monolithic framework. Each tube is designed with specific geometric properties and connection points that provide stability locally, allowing the entire system to achieve reliable tracking through distributed structural quality rather than uniform heavy construction

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The invention uses composite structural design combining tubular frameworks with strategic bracing elements. The checkerboard arrangement of tubes creates a composite lattice structure that provides high strength-to-weight ratio, achieving tracking reliability without the mass of traditional solid structures

Inventive Principle:
Principle #40Composite materials

3Stability of the object's composition

If dense supporting pole structures are used to support heavy panels, then structural stability improves, but soil accessibility and agricultural machinery passage are hindered

Engineering Contradiction:
Improvestructural stabilityVSAvoidagricultural land compatibility
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The supporting structure is segmented into widely spaced tube units arranged in a checkerboard pattern rather than dense pole arrays. This segmentation creates large open spaces between structural elements, allowing agricultural machinery to pass freely while each tube maintains local stability through its geometric design and connection system

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system uses three-dimensional spatial arrangement of tubes at elevated positions, creating a lifted checkerboard framework. This vertical dimensionality separates the tracking function from the ground plane, maintaining structural stability through spatial distribution while preserving ground-level accessibility for agriculture

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system achieves efficient solar panel alignment with reduced weight and encumbrance, enabling increased energy production while allowing passage of agricultural machinery and maintaining soil accessibility, with improved reliability and longevity due to protected mechanical and electrical components.

Implementation Method 1

The main tube (4), in the proximity of at least one of its ends and in its interior, comprises a first motor (41) interfaced with a reducing mechanism (42)

Methodology Applied
Scientific EffectStepper motor:

Implementation Method 2

a reducing mechanism (42) in which there is a central shaft (43) which receives the rotation of said motor and at least a pair of rotating satellite pinions (44) and (44')

Methodology Applied
Scientific EffectGear transmission: Gear

Data Source

PatentUS10965244B2Handling system for solar energy receptor devices
Publication Date: 2021.03.30 REM TEC SRL
  • US10965244B2 patent drawing
  • US10965244B2 patent drawing
  • US10965244B2 patent drawing

AI summary

A handling system for receptor devices of solar energy suitable for allowing the handling of said devices on a first axis and on a second axis, substantially orthogonal with respect to each other, said system being constrainable on fixed structures composed of supporting poles kept in position by a network of tie-rods. The system comprises a main tube rotating around said first axis, to which a plurality of secondary tubes are connected, also rotating around their own axis, fixed substantially perpendicularly to the main tube, the receptor devices being fixed on said secondary tubes. The main rotating tube comprising both the handling mechanism around the first axis and the handling mechanism around the second axis activated by a respective first motor and second motor.