Print Email Facebook Twitter Lifetime comparison of power semiconductors in three-level converters for 10MW wind turbine systems Title Lifetime comparison of power semiconductors in three-level converters for 10MW wind turbine systems Author Shipurkar, U. (TU Delft DC systems, Energy conversion & Storage) Lyrakis, E. (TU Delft Delft Energy Initiative) Ma, Ke (Shanghai Jiao Tong University) Polinder, H. (TU Delft Transport Engineering and Logistics) Ferreira, Jan Abraham (TU Delft ESE Programmes) Date 2018 Abstract 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 of the converter. This paper presents a detailed comparison of several three level converter topologies and switching strategies on the basis of loss distribution, thermal, and lifetime performance. This investigation is done through simulations on a 10MW direct drive permanent magnet drivetrain. The study shows that over-rating in the form of using overrated topologies, or the use of overrated components can result in large gains in lifetime expectancy and quantifies these gains. It concludes that the improvements offered by overrated topologies and overrated components are comparable and that use of the overrated topologies do not offer a significant advantage over the use of topologies with overrated components. Subject Direct Drive PM GeneratorFailure analysisLifetime EstimationMaintenance engineeringMultilevel ConverterPower electronicsReliabilitySemiconductor Device RelaibilitySwitchesTopologyWind EnergyWind turbines To reference this document use: http://resolver.tudelft.nl/uuid:3211c46e-107a-4c22-a575-17782e418f94 DOI https://doi.org/10.1109/JESTPE.2018.2833631 Embargo date 2018-11-07 ISSN 2168-6777 Source IEEE Journal of Emerging and Selected Topics in Power Electronics, 6 (3), 1366-1377 Bibliographical note Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2018 U. Shipurkar, E. Lyrakis, Ke Ma, H. Polinder, Jan Abraham Ferreira Files PDF Lifetime_Comparison_of_Po ... ystems.pdf 3.38 MB Close viewer /islandora/object/uuid:3211c46e-107a-4c22-a575-17782e418f94/datastream/OBJ/view