Power collection and integration on the electric grid from offshore wind parks

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Mogstad, Anne Berit
dc.contributor.author Molinas, Marta
dc.date.accessioned 2011-11-23T12:55:21Z
dc.date.available 2011-11-23T12:55:21Z
dc.date.issued 2008
dc.identifier.isbn 978-951-22-9708-5
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/801
dc.description.abstract There is a lot of potential in offshore wind parks due to the amount of available area. The parks get bigger in size and will continue to grow in the future. In this article a new converter topology for offshore wind parks is proposed. This topology is meant to be for large offshore wind parks sited far from shore and it is based on DC collection and transmission. All the converters are located in the nacelle of the wind turbines and the turbines are connected in series directly connected to shore without any transformation stages. The electrical system, from the generator to the grid connection of the turbine, is modeled in PSCAD. The model consists of an induction machine, a 3-phase AC to 1-phase AC converter, a high frequency high power transformer and a full-bridge converter. The AC-AC converter has a new type of reverse-blocking IGBTs and the switches are controlled with a dedicated switching pattern. The simulations show that the switching pattern gives the expected square wave voltage from the AC-AC converter. The new converter topology reduces the converter losses due to fewer converter stages, the architecture of the reverse-blocking IGBT and the new switching pattern. en
dc.format.extent 8
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Helsinki University of Technology en
dc.publisher Teknillinen korkeakoulu fi
dc.relation.ispartof Nordic Workshop on Power and Industrial Electronics (NORPIE/2008), June 9-11, 2008, Espoo, Finland en
dc.relation.ispartofseries Proceedings of the Nordic Workshop on Power and Industrial Electronics (NORPIE/2008) en
dc.subject.other Electrical engineering en
dc.subject.other Energy en
dc.title Power collection and integration on the electric grid from offshore wind parks en
dc.type A4 Artikkeli konferenssijulkaisussa fi
dc.description.version reviewed en
dc.subject.keyword bidirectional/AC-AC converter en
dc.subject.keyword reverse-blocking IGBT en
dc.subject.keyword offshore wind parks en
dc.subject.keyword HVDC en
dc.subject.keyword switching pattern AC-AC converter en
dc.subject.keyword high frequency transformer en
dc.identifier.urn urn:nbn:fi:tkk-011529
dc.type.dcmitype text en


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