Wind Concentrating Structure for High Output Power Generation
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Solution Overview
Problem
Current wind power generation technologies are limited by low wind speeds and inefficient energy conversion, and architectural structures lack wind concentrating mechanisms, leading to suboptimal energy production and increased energy resource competition.
Innovation Solution
A wind-concentrating type wind power hub generating station with a hollow cylindrical central tower and speed-increasing transmission mode that amplifies natural wind speeds from 3-8 m/sec to 50-70 m/sec, increasing power output by 100-340 times, and an open-field structure group that can achieve installed capacities of 50,000-150,000 kW.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If natural wind speed is used directly for wind power generation, then the wind power generation device can operate with simple structure, but the wind speed is too low (6-8 m/sec) to achieve high power output
Solution Approach 1:
The patent transitions from direct horizontal wind action to vertical wind action by introducing a vertical shaft impeller. The wind acts vertically on the impeller blades arranged around a central vertical shaft, converting horizontal wind flow into vertical rotational motion. This dimensional change enables much higher rotational speeds (1800-3000 rpm) compared to traditional horizontal axis turbines, thereby achieving high power output from moderate wind speeds.
Solution Approach 2:
The patent replaces the traditional horizontal axis mechanical transmission system with a vertical axis direct-drive system. The vertical shaft impeller directly connects to the generator through a magnetic coupling mechanism, eliminating the need for complex gear boxes and transmission mechanisms. This substitution simplifies the mechanical system while enabling high-speed operation and high power output.
2Speed
If high towers (60-80 m) are used to increase wind speed, then the wind speed increases (doubled from 20m to 80m height), but the device complexity and manufacturing difficulty increase significantly
Solution Approach 1:
The patent introduces a wind guide structure as an intermediary element between the natural wind flow and the impeller. This guide structure channels and concentrates the wind flow vertically onto the impeller blades, effectively increasing the wind speed at the impeller location without requiring tall towers. The wind guide acts as a mediator that transforms ambient wind into concentrated vertical flow, achieving high wind speed at ground level.
Solution Approach 2:
The patent changes the flow direction parameter from horizontal to vertical, and modifies the wind speed distribution by concentrating wind flow through the guide structure. By altering the flow parameters (direction and concentration) rather than increasing tower height, the system achieves high effective wind speed without the complexity and cost of tall structures.
3Power
If three-blades horizontal axis impeller is used, then the wind power generation device can operate at low wind speed, but the impeller diameter must be greater than 60 m to achieve 1.5 MW power output
Solution Approach 1:
The patent switches from horizontal axis rotation to vertical axis rotation, fundamentally changing the operational dimension. The vertical shaft impeller rotates around a vertical axis with the wind acting vertically on the blades, enabling compact design with much smaller diameter (1.5-3.0 m) while achieving the same or higher power output through high rotational speed (1800-3000 rpm).
Solution Approach 2:
The patent changes multiple parameters simultaneously: rotational speed (increased to 1800-3000 rpm), impeller diameter (reduced to 1.5-3.0 m), and flow direction (vertical). By optimizing these parameters together in the vertical axis configuration, the system achieves high power output with a compact impeller size, eliminating the need for 60+ meter diameter impellers required by horizontal axis designs.
4Power
If speed increaser with high speed increasing ratio (about 60) is used, then the power output can be increased, but the manufacturing difficulty and cost of the speed increaser increase significantly
Solution Approach 1:
The patent replaces the mechanical speed increaser (gear box with 60:1 ratio) with a magnetic coupling direct-drive system. The vertical shaft impeller rotates at high speed (1800-3000 rpm) and directly drives the generator through magnetic coupling, eliminating the need for complex mechanical transmission. This substitution dramatically simplifies manufacturing while maintaining high power output capability.
Solution Approach 2:
The patent extracts and removes the speed increaser component from the system entirely. By designing the vertical shaft impeller to operate at high rotational speed directly, the system eliminates the need for the speed increaser mechanism, reducing manufacturing complexity and cost while achieving the desired power output.
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 solution provides clean, permanent, and cost-effective energy, overcoming energy resource competition and enhancing wind energy utilization, while reducing transmission costs and enabling the replacement of fossil fuels.
Implementation Method 1
A wind-concentrating type wind power hub generating station with a hollow cylindrical central tower and speed-increasing transmission mode that amplifies natural wind speeds from 3-8 m/sec to 50-70 m/sec
Data Source
AI summary
A wind power station with wind concentrating structure includes a wind concentrating structure, which includes a multiple of floors and a hollow cylindrical central tower (28) running through the multiple of floors; a concentrated drive shaft assembly (2) is provided at a center point O of the central tower (28) being coaxial with a ground central axis (1) and running through each floor of the central tower (28); a impeller (3) is installed on the concentrated drive shaft assembly (2) in each floor of the central tower, the impeller is a vertical axis impeller or a horizontal axis impeller; two or more sub-buildings are radially provided from a original point which is a center O of the central tower (28), outer walls of the sub-buildings are connected with a outer wall of the central tower (28) to form a speed-increasing type windage with the floor (29), a ceiling cover (13) and a ceiling cover supporting truss (14).