Dual-Axis Solar Tracking Control for Slip-Free Panel Alignment
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Solution Overview
Problem
Conventional solar generation systems with fixed positions and angles struggle to maintain optimal power generation efficiency due to changing sun positions, and existing adjustable systems face precision issues with motor-driven mechanisms that can slip, leading to inaccuracies in tilting and rotating the solar panels.
Innovation Solution
An automatic solar tracking adjustment/control apparatus utilizing an accelerometer to detect the tilting direction and inclination angle of solar panels, with a control unit comparing actual parameters to preset values, and a drive mechanism using steel cables and drive wheels with idling members and elastic adjustments to ensure precise rotation and tilting without slippage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a motor-driven chain or belt mechanism is used to adjust the solar panel inclination angle, then the solar panel can be tilted by different inclination angles according to preset parameters, but the chain or belt will slip during rotation causing error in precision
Solution Approach 1:
The patent replaces the motor-driven chain or belt mechanism with a direct-drive system where the motor shaft is directly connected to the drive wheel, eliminating the intermediate transmission elements that cause slippage. This substitution maintains the inclination angle adjustment capability while significantly improving tilting precision by removing the slippage source.
Solution Approach 2:
The patent introduces an encoder as an intermediary device between the motor and the solar panel positioning system. The encoder provides feedback on the actual position, allowing the control system to detect and correct any positioning errors, thereby maintaining high precision without relying solely on mechanical transmission accuracy.
2Ease of manufacture
If a fixed position and fixed inclination angle solar generation apparatus is used, then the installation cost and maintenance fee are lower, but the apparatus cannot always face the sun resulting in poor power generation efficiency
Solution Approach 1:
The patent transforms the static fixed-position solar generation apparatus into a dynamic system with automated tracking capability. The solar panel can now adjust its inclination angle and azimuth position automatically based on sun position, improving power generation efficiency while keeping the base structure simple for cost-effective installation.
Solution Approach 2:
The patent implements a self-service automated tracking system where the solar generation apparatus automatically adjusts its own position and inclination angle based on preset parameters and sensor feedback, without requiring manual intervention. This maintains operational simplicity while significantly improving energy capture efficiency throughout the day.
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 apparatus ensures precise adjustment of solar panels to face the sun optimally, enhancing power generation efficiency by eliminating slippage and maintaining accurate alignment with preset parameters.
Implementation Method 1
a detection/correction module, which at least includes an accelerometer for detecting the tilting direction and inclination angle of the solar generation module
Data Source
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AI summary
An automatic solar tracking adjustment/control apparatus of solar generation system includes a support assembly (1), a two-dimensionally movable pivotal rotational assembly (5) disposed on the support assembly (1), a solar generation module (2) disposed on the support assembly (1) via the pivotal rotational assembly (5) for converting solar energy into electrical energy and two intersecting drive assemblies (3, 4, 7, 8) disposed between the support assembly (1) and the solar generation module (2). The drive assemblies (3, 4, 7, 8) drive the solar generation module (2) to tilt in different directions and angles according to reference parameters previously stored in a control unit. A detection/correction module (6) is disposed on the solar generation module (2) for detecting various parameters including tilting direction and inclination angle of the solar generation module (2). The control unit compares the parameters with the reference parameters to modify the operation of the drive assemblies (3, 4, 7, 8) so as to adjust the tilting direction and inclination angle of the solar generation module (2).