Exploring the Causes of Power-Converter Failure in Wind Turbines based on Comprehensive Field-Data and Damage Analysis

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dc.identifier.uri http://dx.doi.org/10.15488/4722
dc.identifier.uri https://www.repo.uni-hannover.de/handle/123456789/4764
dc.contributor.author Fischer, Katharina ger
dc.contributor.author Pelka, Karoline ger
dc.contributor.author Puls, Sebastian ger
dc.contributor.author Poech, Max-Hermann ger
dc.contributor.author Mertens, Axel ger
dc.contributor.author Bartschat, Arne ger
dc.contributor.author Tegtmeier, Bernd ger
dc.contributor.author Broer, Christian ger
dc.contributor.author Wenske, Jan ger
dc.date.accessioned 2019-04-18T09:53:00Z
dc.date.available 2019-04-18T09:53:00Z
dc.date.issued 2019
dc.identifier.citation Fischer, K. et al.: Exploring the Causes of Power-Converter Failure in Wind Turbines based on Comprehensive Field-Data and Damage Analysis. In: Energies 12 (2019), Nr. 4, 593. DOI: https://doi.org/10.3390/en12040593 ger
dc.description.abstract Power converters are among the most frequently failing components of wind turbines. Despite their massive economic impact, the actual causes and mechanisms underlying these failures have remained in the dark for many years. In view of this situation, a large consortium of three research institutes and 16 companies, including wind-turbine and component manufacturers, operators and maintenance-service providers has joined forces to identify the main causes and driving factors of the power-converter failures in wind turbines to create a basis for effective remedial measures. The present paper summarizes and discusses the results of this research initiative, which have been achieved through the evaluation of converter-specific failure and operating data of a large and diverse worldwide wind-turbine fleet, field measurements as well as post-mortem investigation of returned converter components. A key conclusion of the work is that the thermal-cycling induced fatigue of bond-chip contacts and die-attach solder, which is a known issue in other fields of power-electronics applications and which has been widely assumed to be the principle damage mechanisms also in wind turbines, is no relevant contributor to the observed converter failures in this application. Instead, the results indicate that environmental factors such as humidity and contamination but also design and quality issues as well as human errors play an important part in the incidence of these failures. ger
dc.language.iso eng ger
dc.publisher Basel : MDPI
dc.relation.ispartofseries Energies 12 (2019), Nr. 4 ger
dc.rights CC BY 4.0 ger
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.subject reliability eng
dc.subject power electronics eng
dc.subject power converter eng
dc.subject wind power eng
dc.subject root-cause analysis eng
dc.subject post-mortem analysis eng
dc.subject field data eng
dc.subject.ddc 600 | Technik ger
dc.subject.ddc 000 | Informatik, Wissen, Systeme ger
dc.title Exploring the Causes of Power-Converter Failure in Wind Turbines based on Comprehensive Field-Data and Damage Analysis ger
dc.type article ger
dc.type Text ger
dc.relation.essn 1996-1073
dc.relation.doi 10.3390/en12040593
dc.description.version publishedVersion ger
tib.accessRights frei zug�nglich


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