Vertical photovoltaic system
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Solution Overview
Problem
Conventional solar photovoltaic systems require significant space, are costly, and inefficient due to high wind loads, complex installations, and poor heat dissipation, limiting their ability to track the sun effectively and generate maximum electricity yield.
Innovation Solution
A vertical lightweight photovoltaic system with a modular, adjustable mast structure and electromechanical control for one- or two-axis sun tracking, utilizing bifacial modules and torque limiting elements to reduce wind forces, allowing for easy assembly and increased energy output without heavy equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional horizontal photovoltaic systems are used, then they can generate electricity, but they require significant space and are affected by high wind loads
Solution Approach 1:
The patent transitions from conventional horizontal photovoltaic array placement to a vertical mast-mounted configuration. This dimensional change allows the system to utilize vertical space rather than horizontal space, enabling installation on rooftops and walls where horizontal area is limited, while maintaining electricity generation capability
Solution Approach 2:
The patent inverts the traditional horizontal orientation of photovoltaic systems by mounting modules vertically on masts. This inversion reduces the ground or roof area footprint while increasing the effective utilization of available vertical surfaces, thereby reducing space requirements without compromising productivity
2Productivity
If conventional photovoltaic systems are installed, then they can generate electricity, but they have complex installation requirements and high costs
Solution Approach 1:
The system is divided into modular components: standardized mast sections that can be assembled in varying heights, interchangeable PV module carriers, and separate foundation elements. This segmentation allows for simplified installation, easy customization to different space requirements, and reduced complexity in both installation and maintenance
Solution Approach 2:
The mast height and module configuration are made adjustable and adaptable to different installation environments. The modular design allows the system to be dynamically configured for various rooftop or wall installations without requiring complex custom engineering for each site
3Productivity
If photovoltaic modules are mounted on horizontal surfaces, then they can capture sunlight, but they have poor heat dissipation
Solution Approach 1:
By mounting PV modules vertically on masts rather than horizontally on surfaces, the system improves airflow around and through the modules. This vertical orientation enhances convective heat dissipation, reducing operating temperatures and improving electrical efficiency without compromising sunlight capture
4Weight of stationary object
If vertical photovoltaic systems are designed to be lightweight, then they are easier to assemble, but they must withstand wind forces
Solution Approach 1:
The mast is constructed from modular sections that can be assembled in varying heights. This segmentation allows the structure to achieve the necessary strength-to-weight ratio by optimizing the number and configuration of sections, making the system lightweight enough for easy assembly while maintaining adequate wind load resistance through proper structural design
Solution Approach 2:
The system employs composite construction approaches in the mast structure, combining materials and designs that optimize both weight and strength. This allows the mast to be lightweight for easy assembly and transport while still providing sufficient structural integrity to withstand wind forces at various heights
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 up to 50% higher electricity yield than traditional systems, reduces space requirements, and is cost-effective, enabling efficient energy generation while minimizing wind resistance and installation complexity.
Implementation Method 1
The PV system initially consists of a supporting structure or a foundation. The supporting structure or foundation supports a lightweight mast.
Implementation Method 2
A torque limiting element is provided to limit the bending forces on the mast above a specified wind speed.
Data Source
Figure 1
Figure 2
Figure 3.1~3.2
AI summary
A vertical photovoltaic system with a mast and at least two PV modules (6), optionally in a rigid design, or with a single-axis solar tracking system or with a dual-axis solar tracking system, is described, wherein the photovoltaic system has a first mast section (5, MA1) which is rigid, rotationally fixed and vertically arranged, wherein at least one further mast section (MA2) is mounted on the mast section (5 MA1) and wherein the further mast section (5 MA2) has at least one horizontally arranged shaft which is symmetrically equipped on both sides with at least one PV module (6) and wherein further mast sections (5 MA2, 3, 4, n,) are mounted vertically or obliquely at an angle (Alpha 1; 47) and wherein the angle (Alpha 1; 47) viewed from the sun is always 90 degrees plus angle (Alpha 1;47) and wherein the further mast sections (5 MA2,3,4,n,) can be rotatable in their longitudinal extension, the rotation following the daily course of the sun, wherein the PV module (6) is pivotably arranged on a shaft stub (4.1) and a torque limiting element (30) is arranged between the shaft stub (4.1) and the PV module (6).