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Shipurkar, U. (author), Lyrakis, E. (author), Ma, Ke (author), Polinder, H. (author), Ferreira, Jan Abraham (author)The power electronic converter, especially the power semiconductor, is a major contributor to the failure rates of the wind turbine drivetrain. As the temperature is a major driving factor behind the failure mechanisms of these power semiconductors the choice of topology and switching strategy can have a significant effect on the reliability...journal article 2018
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Shipurkar, U. (author), Dong, J. (author), Polinder, H. (author), Ferreira, Jan Abraham (author)Modularity is promising from a view to increasing turbine availability through fault tolerant operation as well as reduced downtimes, especially for offshore wind turbines. This paper focuses on a quantitative analysis of large scale (or extreme) modularity in power electronic converters of wind turbine generator systems. It uses mathematical...journal article 2018
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Liu, D. (author), Polinder, H. (author), Abrahamsen, Asger B. (author), Ferreira, Jan Abraham (author)This paper aims at assessing the potential of partially superconducting generators for 10 MW direct-drive wind turbines by investigating their performance for a very wide range of excitation currents. Performance indicators such as shear stress and efficiency and other generator characteristics are compared for 12 different generator topologies....journal article 2017
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Wang, X. (author), Liu, D. (author), Lahaye, D.J.P. (author), Polinder, H. (author), Ferreira, Jan Abraham (author)The brushless doubly-fed induction machine (DFIM) has great potential as a variable-speed generator for wind turbine applications. This special machine has a richer space-harmonic spectrum due to its special nested-loop rotor construction compared with conventional induction machines. It may result in higher iron losses, higher torque ripple and...conference paper 2017
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Wang, X. (author), Liu, D. (author), Lahaye, D.J.P. (author), Polinder, H. (author), Ferreira, Jan Abraham (author)Permanent-magnet machines with fractional slot concentrated windings are easy to manufacture. Their popularity therefore is steadily increasing. Without a proper design, however, the induced eddy-current losses in the solid rotor get rather high. The modeling and the prediction of eddy-current losses for these machines are thus very important...conference paper 2016
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Strous, T.D. (author), Shipurkar, U. (author), Polinder, H. (author), Ferreira, Jan Abraham (author)In this paper, the brushless DFIM based wind turbine drive-train topology is compared to the DFIG based and PM generator based drive-train topologies, that are most commonly applied in modern wind turbines. The comparison will be based on a 3:2MW case study wind turbine. By using FE based multi-objective optimization, optimized generator designs...journal article 2016
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Liu, D. (author), Polinder, H. (author), Abrahamsen, Asger Bech (author), Ferreira, Jan Abraham (author)Superconducting synchronous generators (SCSGs) are being proposed for 10-MW direct-drive wind turbines, because of their advantages of low weight and compactness. So far, however, there has not been a commonly accepted design philosophy of SCSGs and various possibilities with many tradeoffs remain for study. Partially SCSGs are considered a...conference paper 2016
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Shipurkar, U. (author), Polinder, H. (author), Ferreira, Jan Abraham (author)Availability is an important factor to be considered when designing wind turbine generator systems. The quest for increasing availability is based on the following five design approaches - design for component reliability, active control for reliability, design for fault tolerance, prognostics, and design for maintainability. This paper reviews...journal article 2016
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van Kuik, G.A.M. (author), Peinke, Joachim (author), Nijssen, Rogier (author), Lekou, Denja (author), Mann, Jakob (author), Sørensen, Jens Nørkær (author), Ferreira, Carlos (author), van Wingerden, J.W. (author), Schlipf, David (author), Gebraad, P.M.O. (author), Polinder, H. (author), Abrahamsen, Asger Bech (author), van Bussel, G.J.W. (author), Sørensen, John Dalsgaard (author), Tavner, Peter (author), Botasso, Carlo (author), Muskulus, Michael (author), Matha, Denis (author), Lindeboom, Han (author), Degraer, Steven (author), Kramer, Oliver (author), Lehnhoff, Sebastian (author), Sonnenschein, Michael (author), Sørensen, Poul Ejnar (author), Kunneke, R.W. (author), Morthorst, Poul Erik (author), Skytte, Klaus (author)The European Academy of Wind Energy (eawe), representing universities and institutes with a significant wind energy programme in 14 countries, has discussed the long-term research challenges in wind energy. In contrast to research agendas addressing short- to medium-term research activities, this eawe document takes a longer-term perspective,...review 2016
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- Bang, D. (author), Jang, G.W. (author), Hwang, S.H. (author), Han, P.W. (author), Kim, J.W. (author), Koo, D.H. (author), Polinder, H. (author), Ferreira, J.A. (author) conference paper 2014
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Van der Geest, M. (author), Wolmarans, J.J. (author), Polinder, H. (author), Ferreira, J.A. (author), Zeilstra, D. (author)High speed fault tolerant permanent magnet machines have strong asynchronous airgap harmonics, making them susceptible to rotor eddy-current losses. These losses can be reduced by using novel high resistivity materials like plastic bonded magnets and carbon fiber reinforced retaining sleeves. This paper examines by numerical studies the...conference paper 2012
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Vu Xuan, H. (author), Lahaye, D. (author), Polinder, H. (author), Ferreira, J.A. (author)The use of slotted stator permanent-magnet machines with concentrated windings is increasing in industry. In this paper, the effect of the slot opening on flux linkage, internal voltage, mean torque, rotor eddy current loss and stator iron losses is evaluated. This gives new insight into the influence of slotting on the performance of machines...report 2012
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Ani, S.O. (author), Polinder, H. (author), Ferreira, J.A. (author), Ockels, W.J. (author)This paper discusses the possibilities of applying high temperature superconducting (HTS) synchronous motor to Superbus, an alternative and sustainable type of public transportation developed at TU Delft. Two important factors within the Superbus drive that influence the operating range are weight and efficiency: increasing the weight results in...conference paper 2009
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- Bang, D. (author), Polinder, H. (author), Shrestha, G. (author), Ferreira, J.A. (author) conference paper 2009
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Shrestha, G. (author), Polinder, H. (author), Bang, D. (author), Jassal, A.K. (author), Ferreira, J.A. (author)A direct drive generator used in wind turbine has high energy yield compared to other drivetrain topologies and low maintenance is expected as the technology matures. On the other hand direct drive generator weight and size increases rapidly when scaled up to larger units. This paper will investigate the possibility of weight reduction of large...conference paper 2009
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- Van der Pijl, F.F.A. (author), Bauer, P. (author), Ferreira, J.A. (author), Polinder, H. (author) conference paper 2007
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- Holm, S.R. (author), Polinder, H. (author), Ferreira, J.A. (author) journal article 2007
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- Shrestha, G. (author), Polinder, H. (author), Bang, D.J. (author), Ferreira, J.A. (author) conference paper 2007
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- Bang, D.J. (author), Polinder, H. (author), Ferreira, J.A. (author), van Rooij, R.P.J.O.M. (author) conference paper 2007
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- van der Pijl, F.F.A. (author), Ferreira, J.A. (author), Bauer, P. (author), Polinder, H. (author) conference paper 2006
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