Abstracts of the projects in the final
Scour prevention devices for large offshore wind turbine monopole foundations.
The project consists in designing and verifying new solutions to prevent scour from occurring around monopile foundations of offshore wind turbines.
The current solutions of rip rap or increased steel in the tower have some disadvantages related to cost of installation and maintenance as well as some known technical issues. The proposed solutions attempt to alleviate these issues and prevent scour from occurring around monopile foundations at a lower cost and with better physical results.
Nick Johansen, DTU, Wind Master
Jose M. Simon, DTU, Wind Master
Ryan Danyluk, DTU, Wind Master
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Increased feasibility of floating foundations for offshore wind turbines.
It is shown how a floating foundation for offshore wind turbines can be constructed in a way that decreases cost of installation, maintenance and decommissioning, relative to costs for current foundations. Solutions for all major functional features are developed and a final conceptual solution is suggested. An economical assessment concludes that the solution has improved economical feasibility. Simple static and dynamic modeling, based on simple statics, dynamics and simple Airy wave theory, is used to select and optimize the concepts.
Mathias Nyman Rasmussen, DTU, Produktion og Konstruktion
Esben Mortensen, DTU, Produktion og Konstruktion
Kasper Kallestrup, DTU, Produktion og Konstruktion
Christian Vad Karsten, DTU, Produktion og Konstruktion
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Systematic approach for determining cost effective sites for future wind farm developments.
This project seeks to create a model that allows for the analytical identification of the best new offshore wind sites. It includes a geographical cost-analysis of Danish waters that shows the approximate cost, per kWh, to generate electricity at that location. It will also take into account areas that are currently unavailable due to competing social and political interests, and quantify the amount of wind resources that are lost because of these restrictions.
Samuel Gooch, AAU, Mechanical Engineering, Alternative Energy
Carlos Guerrero, AAU, Environmental Science, Spatial Planning
Jan Wisniewski, AAU, Environmental Management
Rolando Rodriguez, AAU, Physics, Alternative Energy
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The invention of a vertical wind turbine.
The VWT is working on the same principles as the Darrieus rotor. The use of lift forces from aerodynamic profiles will give the structure the rotation.
In this report the study done regarding the VWT design development is explained and the idea for the further development of the turbines explained.
Tommy Jørgensen, Engineering College of Århus
Helle Ørum, Engineering College of Århus
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New concept for maintenance of offshore wind turbines
The objective of the project is to investigate whether or not the development of a new service concept regarding the heavy lifts in offshore wind operations is feasible.
The idea of this concept is to charge a fixed rate for the subscription only including the access to the vessel and then an additional fee for each time the subscriber employs the service.
Ellis Didriksen, IHK, Export Engineering
Mette Rubæk, IHK, Export Engineering
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Grid integration of large offshore wind farms
New and feasible methods of integration of large amount of electricity produced by the large offshore wind parks have to be found in order to maintain the grid stability and to be economically convenient. One of these possible methods that are studied in this project is the HVDC-VSC connection of the offshore wind farm. The interaction between large amounts of electricity produced by the wind farm and the grid involves investigation of voltage and frequency stability, active and reactive power control and ride through capability of the wind turbines.
Adelina Agap, AAU, Wind Power Systems
Adrian Constantin, AAU, Wind Power Systems
Borja Imanol Markinez Yurre, AAU, Wind Power Systems
Cristina Madalina Dragan, AAU. Wind Power Systems
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