RWE has been granted a patent for a floatable offshore wind turbine with a floatable foundation. The turbine includes an anchoring arrangement to secure it to the underwater ground and a height adjustment device to change the vertical distance of the foundation based on meteorological conditions. The patent also covers an offshore wind farm with multiple turbines and a height control apparatus. The height adjustment device includes a weight arrangement that can be lowered or lifted from the underwater ground surface. GlobalData’s report on RWE gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on RWE, HEV energy management was a key innovation area identified from patents. RWE's grant share as of September 2023 was 42%. Grant share is based on the ratio of number of grants to total number of patents.
Floatable offshore wind turbine with adjustable height and anchoring
A recently granted patent (Publication Number: US11772755B2) describes an innovative offshore wind farm design that includes floatable offshore wind turbines. Each turbine consists of a floatable foundation with at least one floating body, an anchoring arrangement to secure the turbine to the underwater ground, and a height adjustment device. The height adjustment device allows for changes in the vertical distance between the foundation and the underwater ground surface or water surface based on specific meteorological conditions.
The offshore wind farm also includes a height control apparatus that manages the height adjustment devices of the turbines. The height control apparatus sets a height set point for each turbine, which determines the vertical distance of the foundation based on environmental meteorological conditions. The height set point is influenced by factors such as wind direction, wind strength, wave height, and the position of neighboring turbines within the wind farm.
The height adjustment device utilizes weight arrangements connected to the floatable foundation. These weight arrangements can be lowered or lifted from the underwater ground surface to adjust the turbine's position. Additionally, the height adjustment device may include ballast tanks filled with a ballast medium and a ballast medium conveying arrangement to change the filling level and density of the tanks.
The patent also describes a method for operating the offshore wind farm. The method involves adjusting the vertical distance of the floatable foundation using the height adjustment device based on specific meteorological conditions. The height adjustment device includes weight arrangements that can be lowered or lifted from the underwater ground surface.
Overall, this patented offshore wind farm design offers a unique approach to harnessing wind energy. The use of floatable turbines with adjustable heights allows for optimized performance based on meteorological conditions, potentially increasing the efficiency and power generation of offshore wind farms.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
