Abstract
Slot openings modulate the magnetic field present in the air-gap of permanent magnet motors. If the magnets are conductive or if there is present a conductive magnet retention cylinder, losses will be present. This is no-load loss which appears as a drag on the rotor. It is difficult to distinguish from core loss, at least from terminal measurements, but in some cases can cause severe rotor heating. In this paper we present a simple method for estimating this drag loss, which is easily mitigated by proper selection of air-gap dimensions and slot openings.
Author supplied keywords
Cite
CITATION STYLE
Kirtley, J. L., & Lovelace, E. C. (2003). Drag loss in retaining rings of permanent magnet motors. In IEMDC 2003 - IEEE International Electric Machines and Drives Conference (Vol. 2, pp. 1068–1072). Institute of Electrical and Electronics Engineers Inc. https://doi.org/10.1109/IEMDC.2003.1210367
Register to see more suggestions
Mendeley helps you to discover research relevant for your work.
