Streamlined Duct Wind Turbine with Rotating Pedestal

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Wind power generation systems face issues with air turbulence and reduced efficiency when wind enters from the side, leading to lower power generation and efficiency, and existing solutions struggle to control intake port direction with precision.

Innovation Solution

A wind power generation system with a duct having a streamline cross-section, an anemovane for wind direction measurement, a rotating pedestal for precise orientation, and a control device to adjust the pedestal's angle and speed based on wind data, along with an impeller placement optimized for maximum wind velocity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If the duct cross section is formed in a streamline shape to increase wind velocity, then power generation amount is improved, but air turbulence is generated when wind enters from lateral sides

Engineering Contradiction:

Improvepower generation amountVSAvoidair turbulence

Core Design Contradiction:

PowerVSObject-generated harmful factors

Solution Approach 1:

The patent applies the dynamics principle by making the intake port direction adjustable through a rotating mechanism. The duct can rotate to change the intake port orientation from fixed to dynamic, allowing it to adapt to wind directions from various directions (front, rear, and lateral sides) while maintaining streamline flow characteristics and preventing turbulence.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If the intake port direction is made adjustable to capture wind from various directions, then adaptability is improved, but device complexity increases

Engineering Contradiction:

Improvewind direction adaptabilityVSAvoidintake port adjustment mechanism

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the universality principle by designing a rotating duct structure that can intake wind from multiple directions (front, rear, and lateral sides) through a single adjustable mechanism. This multi-functional design allows the same duct structure to handle various wind directions without requiring separate intake ports for each direction, thereby managing complexity while improving adaptability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If wind enters the duct from lateral sides, then the duct captures wind from multiple directions, but wind velocity is weak and power generation efficiency is lowered

Engineering Contradiction:

Improvewind capture capabilityVSAvoidpower generating efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent applies dynamics by enabling the duct to rotate and adjust its intake port direction dynamically. When wind blows from lateral sides, the duct can rotate to face the wind directly, ensuring that the streamline-shaped duct receives wind from the front rather than from the side, thereby maintaining high wind velocity and power generation efficiency while still being able to capture wind from various directions.

Inventive Principle:

Principle #15Dynamics

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

This configuration reduces air turbulence, increases wind velocity, and enhances power generation and efficiency by aligning the intake port with the wind direction and optimizing impeller placement.

Implementation Method 1

a cross section of a duct provided around an impeller is formed in a streamline shape from a front end to a rear end of the duct, so that the velocity of wind flowing into the duct from a front surface side of the duct is increased

Methodology Applied

Scientific EffectStreamline flow: Laminar Flow

Implementation Method 2

an anemovane installed so as to be able to measure a wind direction and/or wind power in a vicinity of the wind power generation apparatus

Methodology Applied

Scientific EffectAerodynamic force: Drag

Implementation Method 3

the support is rotated by wind power received by an outer peripheral surface of the duct, so that the wind power generation apparatus turn in the direction from which wind blows

Methodology Applied

Scientific EffectWind power: Wind

Implementation Method 4

a wind power generation apparatus that includes at least a duct having a longitudinal cross section formed in a substantial streamline shape, the longitudinal cross section being cut along a central axis, an impeller placed in the duct

Methodology Applied

Scientific EffectImpeller rotation: Impeller

Data Source

PatentUS11585317B2Wind power generation system including a streamlined duct

Publication Date: 2023.02.21 KUNINORI TSUDA

AI summary

Provided is a wind power generation system including: a wind power generation apparatus that includes at least a duct having a longitudinal cross section formed in a substantial streamline shape, the longitudinal cross section being cut along a central axis, an impeller placed in the duct, and a power generator that generates power by rotation of the impeller; an anemovane installed so as to be able to measure a wind direction and/or wind power in a vicinity of the wind power generation apparatus; a rotating pedestal that supports the wind power generation apparatus so as to be rotatable along a supporting surface; and a control device that controls a rotational angle of the rotating pedestal based on the wind direction and/or the wind power measured by the anemovane.