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Low‐loss and lightweight magnetic material for electrical machinery
Author(s) -
Ahmadi Farzad,
Sozer Yilmaz,
Donahue Michael J.,
Tsukerman Igor
Publication year - 2020
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.815
H-Index - 97
eISSN - 1751-8679
pISSN - 1751-8660
DOI - 10.1049/iet-epa.2019.0430
Subject(s) - electrical machinery , materials science , mechanical engineering , electrical engineering , automotive engineering , engineering
A low‐loss and lightweight 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 the rotor/stator, with the ultimate goal of increasing the efficiency and substantially reducing core losses. Commercial F e bal N i 29 C o 17 ‐based MWs with a 127 μm diameter and a 33 μm insulation coating are utilised. The magnetic measurements of the fabricated sample demonstrate the high permeability and low core loss in a wide range of frequencies. To prove the utility of this type of material, the authors used it in the rotor core of a prototype 25 W three‐phase synchronous reluctance machine. The core is lighter and the losses are significantly lower than in conventional core materials under the same torque density.

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