Floating Wind Turbine Foundation With Integrated Electrical Substation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Floating offshore wind farms face high capital costs and require significant space for wind turbines and electrical substations, which can limit their efficiency and power generation capacity.
Innovation Solution
Integrating an electrical substation, including a reactive current compensation apparatus, into the buoyant hollow body of a floating wind turbine's foundation, utilizing the hollow body's volume for installation space and eliminating the need for a separate substation structure, and optimizing the placement of heavy components below water level to enhance stability and reduce ballast water requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a separate foundation is provided for the electrical substation, then the substation can be properly installed and operated, but the capital costs and space requirements increase significantly
Solution Approach 1:
The electrical substation is integrated into the hollow body of the floating foundation, combining two previously separate structures (wind turbine foundation and substation platform) into a single unified structure. This eliminates the need for a separate substation foundation, reducing both capital costs and space requirements while maintaining full operational functionality of the substation
Solution Approach 2:
The hollow body of the floating foundation is designed to serve multiple functions simultaneously: providing buoyancy for the wind turbine, housing the electrical substation equipment, and acting as a protective enclosure. This multi-functionality allows the substation to be installed without requiring additional dedicated space or structures
2Productivity
If the electrical substation is installed in the hollow body, then capital costs and space requirements are reduced, but the hollow body must accommodate additional equipment which may affect its structural design
Solution Approach 1:
The hollow body is divided into distinct functional zones: an upper region for housing the electrical substation equipment and a lower region for ballast water storage. This segmentation allows each zone to be optimized independently for its specific function while maintaining the overall structural integrity and buoyancy characteristics of the floating foundation
3Stability of the object's composition
If heavy components are placed below water level, then the center of gravity shifts downward improving stability, but the installation and maintenance access becomes more difficult
Solution Approach 1:
The hollow body is designed with pre-positioned service openings and access hatches that allow maintenance personnel to reach components both above and below the water line. These access features are incorporated into the structural design from the beginning, enabling stable low-center-of-gravity configuration while maintaining ease of maintenance
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 approach reduces overall costs, increases annual electricity generation, and improves the stability of the wind turbine by shifting the center of gravity, while also simplifying cooling and reducing construction costs through the use of the hollow body as a cooling surface and electrical shielding.
Implementation Method 1
the hollow body or bodies of the floating foundation have a considerable volume... filled with air in order to provide the necessary buoyancy force
Implementation Method 2
the hollow body as a cooling surface... simplifying cooling
Implementation Method 3
the hollow body as a cooling surface and electrical shielding
Data Source
AI summary
The invention relates to a wind turbine having an integrated electrical substation, and to a floating offshore wind farm which are optimized in terms of capital costs, economic efficiency, and installation space requirements.