A magnetic gear box for application with a contra-rotating tidal turbine

L. Shah, A.J. Cruden, B.W. Williams

Research output: Chapter in Book/Report/Conference proceedingChapter

27 Citations (Scopus)


This paper presents experimental results for the application of a magnetic gear (MG) box to a contra- rotating tidal turbine. The contra-rotating tidal turbine is a novel design comprising two sets of rotors placed axially: the upstream rotor rotates in a clockwise direction whilst the downstream rotor rotates in an anti-clockwise direction. The tidal turbine is a low speed mechanical system similar to a wind turbine, hence the use of a gearbox is considered to permit a standard 4 or 6 pole induction generator to be used. The magnetic gearbox magnetically combines the output of both contra-rotating shafts into a single high speed rotating shaft. A gear box has been designed using 3D Finite Element Analysis and experimentally tested.
Original languageEnglish
Title of host publication7th International Conference on Power Electronics and Drive Systems, 2007
Number of pages4
ISBN (Print)978-1-4244-0645-6
Publication statusPublished - 2008

Publication series

NameInternational Conference on Power Electronics and Drive Systems PEDS


  • asynchronous generators
  • finite element analysis
  • wind turbines 3D finite element analysis
  • anti clockwise direction
  • contra rotating shafts
  • contra rotating tidal turbine
  • gearbox
  • low speed mechanical system
  • magnetic gear box
  • pole induction generator
  • upstream rotor
  • wind turbine


Dive into the research topics of 'A magnetic gear box for application with a contra-rotating tidal turbine'. Together they form a unique fingerprint.

Cite this