Emerging Electric Machines with Axially Laminated Anisotropic Rotors: A Review

Emerging Electric Machines with Axially Laminated Anisotropic Rotors: A Review

This paper presents a class of multiphase electric machines with axially laminated anisotropic (ALA( passive rotors. Unipolar, two-level bipolar, and sinusoidal current modes are identified. The reluctance variation in ALA rotor is computed for a wide range of airgaps and pole pitches. High ratios o...

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Veröffentlicht in:Electric machines and power systems 1991-11, Vol.19 (6), p.673-703, Article 673
Hauptverfasser: Boldea, I., Nasar, S. A.
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Sprache:eng
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A.c. Machines
Applied sciences
Electrical engineering. Electrical power engineering
Electrical machines
Exact sciences and technology
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Nasar, S. A.
description This paper presents a class of multiphase electric machines with axially laminated anisotropic (ALA( passive rotors. Unipolar, two-level bipolar, and sinusoidal current modes are identified. The reluctance variation in ALA rotor is computed for a wide range of airgaps and pole pitches. High ratios of inductances along d and q axes yield high torque densities. Special attention is paid to the sinusoidal current mode through a quantitative comparison with the induction and PM synchronous counterparts with the same stator. It is demonstrated that the ALA rotor sinusoidal current synchronous motor is superior in all respects to the induction motor and almost equals the performance (torque density, efficiency, power factor( the PM synchronous motor.
doi_str_mv 10.1080/07313569108909557
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source Taylor & Francis Journals Complete
subjects A.c. Machines
Applied sciences
Electrical engineering. Electrical power engineering
Electrical machines
Exact sciences and technology
title Emerging Electric Machines with Axially Laminated Anisotropic Rotors: A Review
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