Damage Model for Reliability Assessment of Solder Joints in Wind Turbines

Erik Kostandyan, John Dalsgaard Sørensen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

Electrical components are inseparable part in many products. The environment, under which the electrical components are utilized, directly influences the reliability of electrical components. Such influences might be loads and stresses from turbulence, temperature, humidity and many other environmental factors. Reliability assessment for such type of products conventionally is performed by classical reliability techniques based on test data. Usually conventional reliability approaches are time and resource consuming activities. Thus in this paper we choose a physics of failure approach to define damage model by Miner’s rule. Our attention is focused on crack propagation in solder joints of electrical components due to the
temperature loadings. Based on the proposed method it is described how to find the damage level for a given temperature loading profile. The proposed method is discussed for the application at Wind Turbines electrical components reliability assessment.
Original languageEnglish
Title of host publication7th EAWE PhD Seminar on Wind Energy in Europe : seminar proceedings
Number of pages1
Place of PublicationDelft
PublisherEuropean Academy of Wind Energy
Publication date2012
Pages173
Publication statusPublished - 2012
EventThe EAWE PhD Seminar on Wind Energy in Europe - Delft University of Technology, Delft, Netherlands
Duration: 27 Oct 201128 Oct 2011
Conference number: 7

Conference

ConferenceThe EAWE PhD Seminar on Wind Energy in Europe
Number7
LocationDelft University of Technology
CountryNetherlands
CityDelft
Period27/10/201128/10/2011

Keywords

  • Wind Turbines Electrical Components Reliability
  • IGBT Damage Model
  • SnAg Solders Damage Model

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