Evaluation of bearing technology in direct drive electrical generators

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Abstract

This paper presents an evaluation of mechanical contact less magnetic bearing against the conventional industry standard rolling element bearing in direct drive electrical generators. The evaluations are performed based on the energy consideration and their potential contribution in structural mass reduction of rotor. A cylindrical rolling element bearing is chosen to represent the conventional type and an approximate modelling of magnetic bearing is carried out to evaluate them. A finite element analysis in the rotor structure is performed to estimate its mass and to analyse any potential saving in mass by the use of magnetic bearing.
Original languageEnglish
Title of host publication5th IET International Conference on Renewable Power Generation (RPG) 2016
Place of PublicationStevenage
Pages1-6
Number of pages6
DOIs
Publication statusPublished - 30 Jan 2017
EventIET Renewable Power Generation 2016 - IET Savoy Place, London, United Kingdom
Duration: 21 Sep 201623 Sep 2016

Conference

ConferenceIET Renewable Power Generation 2016
CountryUnited Kingdom
CityLondon
Period21/09/1623/09/16

Keywords

  • direct drive
  • magnetic bearing
  • rolling element bearing
  • air gap flux
  • electromagnetic forces

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