Front-Mounted Wind Turbine Generator Bracket Design
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Solution Overview
Problem
Wind turbines with speed increasers have complex structures, increased manufacturing and maintenance costs, and weight issues due to the length and sagging of the rotating shaft, which complicates the structural reinforcement of the tower.
Innovation Solution
A wind turbine design without a speed increaser, where the rotor and generator are coupled directly to a support bracket, allowing for a stable and flexible rotating shaft with a cylindrical shape and perforation holes for bearings, enabling secure coupling and minimizing vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a speed increaser is installed between the rotor and generator, then the rotational speed can be increased to improve power generation efficiency, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent removes the speed increaser component from the system entirely. By directly coupling the rotor to the generator, the invention extracts the problematic intermediate component that caused complexity, while still achieving power generation through direct rotational energy transfer.
2Productivity
If a speed increaser is installed between the rotor and generator, then the rotational speed can be increased to improve power generation efficiency, but the manufacturing cost and maintenance cost increase
Solution Approach 1:
The invention extracts and removes the speed increaser component, thereby eliminating the associated manufacturing and maintenance costs. The direct coupling design simplifies the overall structure, reducing the number of parts that need to be manufactured and assembled.
3Ease of operation
If the rotating shaft length exceeds the tower diameter, then the rotor can be coupled to the generator, but the weight of the wind turbine increases requiring tower reinforcement
Solution Approach 1:
The invention merges the rotor and generator positions by coupling them directly to the front surface of the support bracket. This integration eliminates the need for a long rotating shaft that would otherwise extend through the tower, thereby reducing the overall weight of the moving components.
4Ease of operation
If the rotating shaft is made long to connect rotor and generator, then the components can be positioned appropriately, but the rotating shaft may sag or twist reducing reliability
Solution Approach 1:
By merging the rotor and generator into a closely coupled configuration at the support bracket, the invention eliminates the need for a long rotating shaft. This shortens the shaft length significantly, preventing sagging and twisting issues while maintaining proper component positioning through direct front-surface coupling.
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 design reduces the weight and complexity of the turbine, enhances the bending strength of the rotating shaft, prevents rearward movement, and minimizes vibration, facilitating easier maintenance and efficient power generation while preventing rainwater and dust ingress.
Implementation Method 1
a generator (400) coupled to a rear end of the rotating shaft (300)... a rotator (403) coupled to the outer peripheral portion of the rotating plate (402), and a stator (404) coupled to an inner peripheral surface of the housing (401) to generate the electromagnetic induction through the interaction with the rotator (403)
Data Source
AI summary
Disclosed is a wind turbine with a generator, which minimizes design limitations on the diameters of generators and allows a rotor and the generator to be stably fixed to a tower. The wind turbine includes a rotor including a hub at a center thereof, a rotating shaft protruding rearward of the hub, and a plurality of rotor blades provided around the hub; a generator including a housing disposed at an outer upper portion of a tower behind the rotor and provided at an inner surface of a cylindrical body thereof with a stator and a rotator rotatably coupled in the housing to rotate together with the rotor; and a support bracket fixed to an upper end portion of the tower, wherein the housing is fixed to a front surface of the support bracket to integrally fix the rotor and the generator to the tower.