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Actuators 2017, 6(2), 12; doi:10.3390/act6020012

Modeling and Realization of a Bearingless Flux-Switching Slice Motor

1
Institute of Electrical Drives and Power Electronics, Johannes Kepler University, Altenberger Str. 69, 4040 Linz , Austria
2
LCM GmbH, Altenberger Str. 69, 4040 Linz , Austria
*
Author to whom correspondence should be addressed.
Received: 20 December 2016 / Revised: 10 March 2017 / Accepted: 22 March 2017 / Published: 27 March 2017
(This article belongs to the Special Issue Active Magnetic Bearing Actuators)
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Abstract

This work introduces a novel bearingless slice motor design: the bearingless flux-switching slice motor. In contrast to state-of-the-art bearingless slice motors, the rotor in this new design does not include any permanent rotor magnets. This offers advantages for disposable devices, such as those used in the medical industry, and extends the range of bearingless slice motors toward high-temperature applications. In this study, our focus is on the analytical modeling of the suspension force torque generation of a single coil and the bearingless motor. We assessed motor performance in relation to motor topology by applying performance factors. A prototype motor was optimized, designed, and manufactured. We also presented the state-of-the-art nonlinear feedback control scheme used. The motor was operated, and both static and dynamic measurements were taken on a test bench, thus successfully demonstrating the functionality and applicability of the novel bearingless slice motor concept. View Full-Text
Keywords: bearingless motor; flux-switching drive; permeance model; feedback control bearingless motor; flux-switching drive; permeance model; feedback control
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Gruber, W.; Radman, K. Modeling and Realization of a Bearingless Flux-Switching Slice Motor. Actuators 2017, 6, 12.

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