This preprint was under review for the journal WES but the revision was not accepted.
Potential of load and O&M costs reductions of Multi Rotor System for the south Baltic Sea
Maciej Karczewski1,Piotr Domagalski1,Arnoldus van Wingerde2,Bernhard Stoevesandt2,Peter Jamieson3,and Lars Roar Saetran4Maciej Karczewski et al. Maciej Karczewski1,Piotr Domagalski1,Arnoldus van Wingerde2,Bernhard Stoevesandt2,Peter Jamieson3,and Lars Roar Saetran4
1WindTAK sp z o.o. [Ltd], Wroblewskiego 38A, 93-578 Lodz, Institute of Turbomachinery, Lodz University of Technology, Wolczanska 219/223, Lodz 90-924, Poland
2IWES Fraunhofer, am Seedeich 45, 27572 Bremerhaven, Germany
3University of Strathclyde, Royal College Building, 204 George Street, Glasgow G1 1XW, United Kingdom
4Department of Energy and Process Engineering, NTNU Trondheim, Kolbjørn Hejes vei 2, 7491 Trondheim, Norway
1WindTAK sp z o.o. [Ltd], Wroblewskiego 38A, 93-578 Lodz, Institute of Turbomachinery, Lodz University of Technology, Wolczanska 219/223, Lodz 90-924, Poland
2IWES Fraunhofer, am Seedeich 45, 27572 Bremerhaven, Germany
3University of Strathclyde, Royal College Building, 204 George Street, Glasgow G1 1XW, United Kingdom
4Department of Energy and Process Engineering, NTNU Trondheim, Kolbjørn Hejes vei 2, 7491 Trondheim, Norway
Received: 31 Jan 2020 – Accepted for review: 23 Mar 2020 – Discussion started: 04 May 2020
Abstract. Many coastal regions in Norway, Spain, Portugal, Japan or the United States are comprised of large water depths (> 50 m) making the installation of typical bottom-fixed off-shore wind turbines very difficult and expensive. This is the reason why the floating wind turbines (FOWT) are a promising solution able to exploit the high energy potential contained in these regions. The Advanced Multi-Rotor Turbine for Deep Water Off-shore Energy (AMRowe) has been undertaken to design and develop a cost–competitive, innovative floating Polish multi rotor system, aiming at the optimal usage of European off-shore wind potential. In the article, a prospective deep off-shore location in the south Baltic Sea is identified. The authors built a cost model to prove its superiority over the sites already commissioned by the Polish government. A set of metocean conditions tallied for a 50-year period is used to assess performance of the proposed multi rotor floating wind turbine and to benchmark it against a single rotor 5 MW baseline turbine. The typical load cases are also investigated to observe impact on a single rotor blade in an multi-rotor arrangement in order to begin search for the key design drivers.
The paper presents a concept of a multi-rotor system as a floating off-shore wind turbine. The results show that it may be an alternative to conventional wind turbines and even be cheaper in a long run, thus lowering the cost of energy to consumers. It may also solve technological barriers. The motivation for research was the idea of providing a technology vision for regions, where certain local supply chain can be employed to revitalize the shipyard industry while using renewable energy.
The paper presents a concept of a multi-rotor system as a floating off-shore wind turbine. The...
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