Multi-Rotor Wind Turbine with Differential Gearbox Torque Combination
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Solution Overview
Problem
Horizontal axis wind turbines face challenges such as high costs, structural instability, and reduced efficiency due to their large size, while vertical axis turbines struggle with self-starting and lower energy generation. Existing multi-rotor designs suffer from wind shading and limited applicability to fluid environments beyond wind currents.
Innovation Solution
A power generation system comprising a series of small rotors connected to differential gearboxes, which combine torque and transfer it to a driveshaft, powering a generator to produce electricity, capable of rotating 360 degrees to maintain optimal positioning in shifting currents and winds, with a flexible design suitable for both wind and water energy conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If horizontal axis turbines use large diameter to maximize energy generation, then energy production increases, but structural cost and complexity increase
Solution Approach 1:
The patent divides the rotor into multiple smaller rotors arranged in a circle rather than using a single large rotor. Each small rotor operates independently, and their combined energy output equals that of a large single rotor. This segmentation reduces the complexity of individual components while maintaining overall energy production capacity.
Solution Approach 2:
The patent transitions from a single large rotor operating in two dimensions to multiple small rotors arranged in a circular pattern, utilizing the third dimension (vertical stacking and radial arrangement). This dimensional change allows the system to capture wind energy more effectively while reducing the size and complexity of individual rotor components.
2Productivity
If horizontal axis turbines use large diameter to maximize energy generation, then energy production increases, but manufacturing cost increases
Solution Approach 1:
By segmenting the rotor into multiple smaller units, each rotor can be manufactured using simpler, less expensive processes. The smaller size of individual rotors reduces material costs and manufacturing complexity while the collective output matches that of a large single rotor.
Solution Approach 2:
The patent uses multiple smaller rotors that individually generate less power but collectively achieve the desired energy output. This partial action approach allows for more economical manufacturing of each component while achieving the overall energy production target.
3Stability of the object's composition
If vertical axis turbines place rotors nearer to ground for stability, then structural stability improves, but energy generation decreases
Solution Approach 1:
The patent segments the rotor system into multiple small rotors arranged in a circle at elevated positions. This segmentation allows the rotors to be positioned higher where wind speeds are greater, improving energy capture while the circular arrangement and support structure maintain stability.
Solution Approach 2:
The patent uses a counterweight mechanism to balance the rotor assembly, allowing the rotors to be positioned at optimal heights for energy capture without compromising structural stability. The counterweight compensates for the rotational forces and positioning requirements.
4Device complexity
If multi-rotor wind turbines use identical rotor planes to simplify design, then device complexity decreases, but wind conversion efficiency decreases
Solution Approach 1:
The patent positions each small rotor at a slightly different orientation and plane within the circular arrangement, optimizing each rotor's exposure to wind flow. This local variation in rotor positioning maximizes wind conversion efficiency while maintaining overall design simplicity through the standardized circular pattern.
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 enhances energy production efficiency by minimizing wind shading, stabilizing the structure, and enabling effective operation in various fluid environments, reducing maintenance costs and improving energy output compared to traditional turbine designs.
Implementation Method 1
converting the kinetic energy of flowing fluids such as wind and/or water currents into mechanical power or electricity
Implementation Method 2
The differential gearboxes combine the torque generated by the rotors together and transfer said torque to the driveshaft
Implementation Method 3
A generator or mechanical device is attached to the rotating driveshaft and electricity or mechanical power is generated
Data Source
AI summary
An apparatus using differential gearboxes to collect, combine, and transmit torque generated by multiple, interconnected rotor systems. The rotor systems are connected via a driveshaft. The driveshaft is connected to a generator gearbox, and the generator box drives an electrical generator. The torque may be converted to mechanical power by replacing the electrical generator with a mechanical power device. The rotors are activated by fluid currents such as wind or water.