Chamfered Building Corner Wind Turbine Adaptation
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Solution Overview
Problem
Wind power generation systems installed near artificial buildings face reduced power generation due to wind direction changes, as existing methods are optimized for wind speeds from specific directions, leading to decreased efficiency when wind directions vary.
Innovation Solution
A wind power generation system with a blade installed in a chamfered corner portion of a building, where the corner is shaped to reduce separation phenomena, allowing the blade to capture high wind speeds from various directions, including a chamfered corner round or cut design that suppresses separation and enhances kinetic energy conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a wind power generation apparatus is installed at a corner portion of a building to utilize high wind speed, then power generation amount increases, but the apparatus becomes sensitive to wind direction changes causing power generation to decrease
Solution Approach 1:
The blade is designed to rotate about a rotation axis that is not parallel to the wall surface, allowing the blade orientation to dynamically adapt to wind direction changes. This dynamic positioning enables the blade to maintain effective wind capture across varying wind directions while utilizing the high-speed region generated by the chamfered corner structure
Solution Approach 2:
The rotation axis is inclined at a specific angle (e.g., 45 degrees) relative to the wall surface, changing the geometric parameter of the blade installation. This parameter modification allows the blade to intercept winds from multiple directions effectively, transforming the single-direction optimization into multi-directional adaptability
2Productivity
If a vertical-axis wind power generation apparatus with straight blades is installed in a wind passage, then power generation is improved for front winds, but power generation decreases when wind direction changes
Solution Approach 1:
The blade configuration is made asymmetric relative to the wall surface by positioning the rotation axis at an inclination angle. This asymmetric arrangement allows the blade to effectively capture winds from a broader range of directions, breaking the symmetry limitation of traditional straight-blade designs that only optimize for frontal winds
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 ensures high power generation across various wind directions by utilizing the speed increase region around the building, reducing speed reduction regions and allowing for efficient installation of multiple wind power generation apparatuses, thereby increasing overall power output.
Implementation Method 1
a blade 500t that rotates by receiving wind 111
Implementation Method 2
a generator that converts the rotational energy into electricity
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
According to the present invention, a wind power generation system includes: a wind power generation apparatus including a blade that rotates by receiving wind, a main shaft that transmits rotational energy of the blade, and a generator that converts the rotational energy into electricity; and a building in which the wind power generation apparatus is installed, in which the building includes a corner portion having a chamfered shape and two wall surfaces adjacent to the corner portion, and the blade is installed in an installation region including the corner portion and a surface having each of the two wall surfaces adjacent to the corner portion.