This work was supported in part by the Department of Energy under grant DE-EE0006801 and in part by a North Carolina Ocean Energy grant.
Journal of Engineering
Magnetic gearing -- Technological innovations, Wind turbines -- Design and construction, Wind turbines -- Rotors, Electromagnetism
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.
Li, K., Modaresahmadi, S., Williams, W., & Bird, J. Z. (2019). Electromagnetic analysis of a wind turbine magnetic gearbox. The Journal of Engineering, 2019(17), 4101-4105.