Dual-Axis Solar Module Tracking With Pyroelectric Sun Sensing
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Solution Overview
Problem
Conventional solar module mounting systems are inefficient due to fixed positions, leading to geometric energy loss as the angle of incidence increases, limiting the effectiveness of solar energy harnessing.
Innovation Solution
A solar positioning system utilizing pyroelectric infrared sensors, stepper motors, and Fresnel lenses to dynamically adjust the angle of solar modules to maintain optimal incidence, allowing for continuous alignment with incoming solar energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If solar modules are mounted in fixed positions, then device complexity is reduced, but energy capture efficiency deteriorates due to geometric energy loss as angle of incidence increases
Solution Approach 1:
The patent applies dynamics by transitioning from fixed static mounting to dynamic tracking systems that continuously adjust solar module orientation. The system uses motors and control mechanisms to enable real-time movement of solar panels, allowing them to follow the sun's path and maintain optimal angle of incidence throughout the day, thereby maximizing energy capture efficiency
Solution Approach 2:
The patent implements feedback through sensor systems that detect sun position and provide signals to control mechanisms. These sensors continuously monitor environmental conditions and feed information back to the control system, which automatically adjusts the mounting structure to optimize solar panel orientation, creating a closed-loop control system that adapts to changing conditions
2Productivity
If solar modules are positioned to maintain optimal angle of incidence, then energy capture efficiency is improved, but device complexity increases due to additional positioning mechanisms
Solution Approach 1:
The patent applies segmentation by dividing the positioning system into modular components including separate tracking mechanisms for azimuth and elevation, independent sensor systems for each axis, and segmented control units. This modular approach allows the complex functionality to be achieved through coordinated simple components, making the system more manageable and maintainable
Solution Approach 2:
The patent implements universality by designing mounting structures that can perform multiple functions: structural support, rotational movement, positioning control, and sometimes even sun tracking. The same mechanical components serve both as structural elements and as actuating mechanisms, reducing the need for separate dedicated parts and simplifying the overall system
3Productivity
If conventional fixed mount apparatuses are used, then device complexity is minimized, but energy generation is reduced due to geometric energy loss
Solution Approach 1:
The patent applies self-service by designing systems where the solar mounting structure automatically adjusts itself without requiring external intervention. The control systems use onboard sensors and embedded controllers to autonomously determine optimal positioning and execute adjustments, enabling the system to service itself and maximize energy generation without human operation
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 significantly increases energy capture efficiency, achieving up to 12 times the yield of conventional systems, making solar energy a more reliable and abundant resource.
Implementation Method 1
Positioning of the support subsystem may be controlled by a plurality of pyroelectric infrared sensors similarly oriented
Implementation Method 2
A solar positioning system utilizing pyroelectric infrared sensors, stepper motors, and Fresnel lenses to dynamically adjust the angle of solar modules
Data Source
AI summary
A solar positioning system configured to position a body, such as, but not limited to, a solar module, perpendicular to incoming solar energy to maintain an optimal angle of incidence with efficacy is disclosed. The solar positioning system may include a support subsystem having a first mechanism for controlling rotational adjustments about a first axis and a second mechanism for controlling rotational adjustments about a second axis, thereby controlling pan and tilt adjustment. Positioning of the support subsystem may be controlled by a plurality of pyroelectric infrared sensors similarly oriented. A differential amplifier and a comparator may be coupled between the sensor subsystem and an integrated circuit to ignore brief flashes of light. The solar positioning system may also be used with a solar positioning control system to control the position of two or more solar modules, such as hundreds of solar modules in a solar farm.