Removable Electronics Module for Wind Turbine Tower Service
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Solution Overview
Problem
Service and replacement of electronic components within the lower portion of a wind turbine tower pose challenges due to structural strength requirements and the need for substantial support structures to accommodate large equipment, making access and maintenance difficult.
Innovation Solution
A removable electronics module system is implemented, where the tower is supported by a transition piece that allows for the downward movement of modules from the tower interior into a space below the tower, facilitating service and replacement while utilizing a support structure to elevate the tower and provide access to the modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If electronics are positioned within the lower portion of the wind turbine tower, then weight is removed from the upper end of the wind turbine, but service and replacement of electrical components becomes difficult
Solution Approach 1:
The electrical components are divided into modular assemblies that can be independently removed and replaced. Each module contains specific electrical equipment and can be serviced separately, enabling easy maintenance while keeping the components positioned in the lower tower portion to reduce upper turbine weight.
Solution Approach 2:
A service platform or access mechanism is introduced as an intermediary between the lower tower portion and the electrical components. This intermediary structure provides a workspace and access points for technicians to service components without requiring direct access from the top of the tower, thus maintaining weight reduction while improving serviceability.
2Adaptability or versatility
If large electronic components such as transformers are positioned within the tower, then the tower structure must accommodate substantial support structures and large openings, but this compromises structural strength
Solution Approach 1:
Large electronic components are accessed and serviced through the horizontal dimension (side openings in the tower) rather than requiring large vertical openings that would compromise structural integrity. The service platform extends horizontally to provide access to components positioned in the lower tower portion, allowing the tower wall to remain substantially intact and maintain structural strength.
3Ease of repair
If the tower structure is modified to allow access to electronics, then serviceability is improved, but structural integrity may be compromised
Solution Approach 1:
The service platform and access mechanisms are nested within the existing tower structure rather than requiring external modifications. The platform is positioned inside the tower's interior space and provides access to components without creating large openings in the tower wall, thus maintaining structural integrity while improving serviceability.
Data Source
AI summary
A wind turbine tower (14) is supported on a transition piece (18) that connects the tower (14) to a foundation and that defines a space (28) beneath the lower end of the tower (14). Electronic components positioned within a removable module (24) in the lower portion of a wind turbine tower may be removed through a lower end of the tower for service or replacement.