Open AccessElectromagnetic analysis of a wind turbine magnetic gearbox
Author(s) -
Li Kang,
Modaresahmadi Sina,
Williams Wesley,
Bird Jonathan Z.
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8006
Subject(s) - turbine , rotor (electric) , stage (stratigraphy) , magnet , torque , magnetic flux , torque density , mechanical engineering , materials science , magnetic field , engineering , physics , geology , paleontology , quantum mechanics , thermodynamics
The design of the second stage of a 59:1 multi‐stage magnetic gearbox for a wind turbine demonstrator is presented. The multi‐stage series‐connected magnetic gearbox is composed of a 6.45 first stage and 9.14 second stage. A flux‐focusing spoke‐type rotor typology is used with a unique segmented fully laminated design. The impact of structural design changes is considered with respect to torque density. A new rotor typology is presented that enables the magnetic gearbox to be mechanically assembled first without magnets.