A Novel Low Loss and Lightweight Magnetic Material for Electrical Machinery
Michael J. Donahue, Farzad Ahmadi, Yilmaz Sozer, Igor Tsukerman
A new low loss and light weight core material, with applications in electrical machinery, is made of highly packed and insulated magnetic microwires (MWs). These MWs are aligned in such a way as to guide the flux in rotor/stator, with the ultimate goal of increasing efficiency and substantially reducing core losses. Commercial F ebal N i29 Co17 -based MWs with a 127 µm diameter and a 33 µm insulation coating are utilized. The magnetic measurements of the fabricated sample demonstrate high permeability and low core loss in a wide range of frequencies. To demonstrate the utility of this type of material, we used it in the rotor core of a prototype 25 W three-phase synchronous reluctance machine (SyncRM). The core is lighter, and the losses are significantly lower than in the conventional M19 core material under the same torque density.
, Ahmadi, F.
, Sozer, Y.
and Tsukerman, I.
A Novel Low Loss and Lightweight Magnetic Material for Electrical Machinery, IEEE Transactions on Energy Conversion, [online], https://doi.org/10.1049/iet-epa.2019.0430
(Accessed December 5, 2023)