Modular Vertical Axis Wind Turbine with Adjustable Blades
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Solution Overview
Problem
Current vertical axis wind turbines (VAWTs) face manufacturing challenges due to large diameter requirements, aerodynamic efficiency issues due to fixed blade angles, and limitations in scalability and mass production suitability, hindering the commercialization of larger turbines.
Innovation Solution
A modular wind power system with an adjustable blade design, featuring a circuit frame with interconnected trolleys and positioning devices that allow for real-time blade angle adjustments based on wind conditions, enabling optimal energy extraction and facilitating industrial mass production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the wind rotor diameter is increased to generate larger power, then the power output is improved, but the main shaft diameter becomes too big and difficult to manufacture
Solution Approach 1:
The wind rotor is divided into multiple independent blades (at least three blades) that are separately manufactured and then assembled onto a common vertical main shaft. Each blade can be manufactured independently with smaller dimensions, avoiding the need to manufacture one extremely large monolithic structure. The blades are connected to the main shaft via radial arms, creating a modular assembly that is easier to manufacture and transport.
2Power
If the wind rotor diameter is increased, then the power output is improved, but the height and strength requirements of the tower increase
Solution Approach 1:
The blade rotation angle is made dynamically adjustable rather than fixed. Each blade can independently adjust its rotation angle around the radial arm according to real-time wind conditions, blade position on the rotation orbit, and operational requirements. This dynamic adjustment capability allows the system to optimize performance without requiring excessive tower strength to handle static high torques, as the torque can be modulated through blade angle control.
3Loss of energy
If the blade rotation angle is adjusted in real time to improve aerodynamic efficiency, then the aerodynamic efficiency is improved, but the device complexity increases
Solution Approach 1:
The blade rotation angle is made dynamically adjustable rather than fixed. Each blade can independently adjust its rotation angle around the radial arm according to real-time wind conditions, blade position on the rotation orbit, and operational requirements. This dynamic adjustment capability allows the system to optimize performance without requiring excessive tower strength to handle static high torques, as the torque can be modulated through blade angle control.
Solution Approach 2:
The blade rotation angle parameter is changed dynamically based on operating conditions. By adjusting the rotation angle parameter of each blade independently, the system adapts to varying wind speeds, wind directions, and blade positions to maximize aerodynamic efficiency. This parameter adjustment is achieved through control mechanisms that modify the blade angle without requiring complete redesign of the basic rotor structure.
4Device complexity
If fixed blade setting angle is used to simplify the structure, then the device complexity is reduced, but the aerodynamic efficiency deteriorates
Solution Approach 1:
The blade rotation angle is made dynamically adjustable rather than fixed. Each blade can independently adjust its rotation angle around the radial arm according to real-time wind conditions, blade position on the rotation orbit, and operational requirements. This dynamic adjustment capability allows the system to optimize performance without requiring excessive tower strength to handle static high torques, as the torque can be modulated through blade angle control.
Solution Approach 2:
The blade rotation angle parameter is changed dynamically based on operating conditions. By adjusting the rotation angle parameter of each blade independently, the system adapts to varying wind speeds, wind directions, and blade positions to maximize aerodynamic efficiency. This parameter adjustment is achieved through control mechanisms that modify the blade angle without requiring complete redesign of the basic rotor structure.
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 modular design enhances aerodynamic efficiency, supports large-scale energy generation, and adapts to varying installation site conditions, overcoming manufacturing and scalability limitations of traditional VAWTs.
Implementation Method 1
wind power system and method for generating electricity using the same
Implementation Method 2
Current VAWTs utilize blades of certain airfoil profile
Data Source
AI summary
A wind power electricity generating system and its generation method, comprising a circuit frame, towers that support the circuit frame, a plurality of rails attached to the circuit frame, a plurality of interconnected trolleys, each trolley is connected with a blade whose blade rotation angle is adjustable, a plurality of generators, a plurality of positioning devices capable of sending and receiving signals deployed on the circuit frame, and devices for sending and receiving signals for adjusting a rotation angle of the blades being deployed at each trolley. Current collectors are deployed at the trolley.