Availability of wind turbine converters with extreme modularity

Journal article (2018)

Authors

U. Shipurkar DC systems, Energy conversion & Storage - EEMCS
J. Dong DC systems, Energy conversion & Storage - EEMCS
H. Polinder Transport Engineering and Logistics - Mechanical, Maritime and Materials Engineering
Jan Abraham Ferreira ESE Programmes - EEMCS
Research Group
DC systems, Energy conversion & Storage (EEMCS) (TU Delft)
Copyright: © 2018 U. Shipurkar, J. Dong, H. Polinder, Jan Abraham Ferreira
DOI: https://doi.org/10.1109/TSTE.2018.2813402
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Published Date

2018

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

DC systems, Energy conversion & Storage

Abstract

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 models to investigate the effect of the choice of module number on the availability of a converter. It further analyses the availability in conditions where increased levels of modularity lead to a reduction of failure rates in the system. The paper extends this analysis by quantifying the benefits for a 10MW case study turbine. Finally, it concludes that extreme modularity holds merit only when it is accompanied by a reduction in failure rates.

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