Vertical Axis Wind Turbine with Nested Rotors
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Solution Overview
Problem
Traditional wind turbines face inefficiencies and noise issues due to their design, limiting their ability to effectively convert wind energy into electrical energy.
Innovation Solution
A wind turbine system featuring a central rod with an electrical coil and rotating assemblies comprising wheels and airfoils, where the airfoils are adjustable to optimize angular velocity and the system includes a magnet that rotates around the central rod to induce electrical current, enhancing energy conversion efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional three-blade horizontal axis design is used, then structural simplicity is maintained, but energy conversion efficiency is limited and noise is generated
Solution Approach 1:
The rotor is divided into multiple independent rotating assemblies, each with its own airfoils and magnets. These assemblies are distributed around the central rod at different radial distances and angular positions, allowing each to independently capture wind energy and generate electricity, thereby improving overall efficiency while reducing noise through distributed operation
Solution Approach 2:
The invention transitions from a traditional horizontal axis rotor to a vertical axis configuration with multiple rotating assemblies arranged circumferentially around a central rod. This dimensional change allows wind to drive the rotor from any direction and enables the magnets to rotate past stationary coils in multiple planes, enhancing energy capture efficiency
Solution Approach 3:
Multiple rotating assemblies are nested at different radial distances from the central rod, with inner assemblies having smaller diameters than outer assemblies. This nested configuration allows wind to pass through multiple tiers of airfoils, maximizing energy extraction while the concentric arrangement of magnets and coils at different radii enables simultaneous generation from multiple rotational paths
2Productivity
If multiple rotating assemblies are added to improve energy capture, then productivity increases, but device complexity increases
Solution Approach 1:
Each rotating assembly serves multiple functions: the airfoils capture wind energy to drive rotation, the magnets generate electrical current through electromagnetic induction with stationary coils, and the entire assembly acts as both a mechanical rotor and an electrical generator. This multi-functionality reduces the need for separate components and simplifies the overall system architecture
Solution Approach 2:
The invention combines the rotor structure with the generator function by integrating magnets directly into the rotating assemblies and placing stationary coils around the central rod. This merging of mechanical rotation and electrical generation eliminates the need for separate drive mechanisms and simplifies the power transmission system
Solution Approach 3:
The rotating assemblies are designed to dynamically adjust their operational characteristics based on wind conditions. The airfoils are positioned at optimized angles to maximize lift and drag forces across varying wind speeds, and the multiple assemblies rotate at different speeds depending on their radial position, allowing the system to adapt to changing environmental conditions
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 improves energy conversion efficiency by maximizing wind energy capture and stability across varying wind conditions, reducing noise and increasing electrical power generation.
Implementation Method 1
A magnet is coupled to the at least one rotating assembly and configured to rotate around the central rod
Implementation Method 2
a rotating assembly configured to rotate around the central rod. The rotating assembly includes a wheel and a plurality of airfoils disposed around a perimeter of the wheel
Data Source
AI summary
Embodiments of the present disclosure include a wind turbine and a method of operating thereof. The wind turbine includes a central rod comprising an electrical coil and at least one rotating assembly configured to rotate around the central rod. The rotating assembly includes a wheel and a plurality of airfoils disposed around a perimeter of the wheel. The wind turbine also includes a magnet coupled to the at least one rotating assembly and configured to rotate around the central rod.