Journal ArticleDOI
Fractional-Slot Concentrated-Windings Synchronous Permanent Magnet Machines: Opportunities and Challenges
TLDR
This paper will cover the theory and design of FSCW synchronous PM machines, achieving high-power density, flux-weakening capability, comparison of single- versus double-layer windings, fault-tolerance rotor losses, parasitic effects, compared of interior versus surface PM machine, and various types of machines.Abstract:
Fractional-slot concentrated-winding (FSCW) synchronous permanent magnet (PM) machines have been gaining interest over the last few years. This is mainly due to the several advantages that this type of windings provides. These include high-power density, high efficiency, short end turns, high slot fill factor particularly when coupled with segmented stator structures, low cogging torque, flux-weakening capability, and fault tolerance. This paper is going to provide a thorough analysis of FSCW synchronous PM machines in terms of opportunities and challenges. This paper will cover the theory and design of FSCW synchronous PM machines, achieving high-power density, flux-weakening capability, comparison of single- versus double-layer windings, fault-tolerance rotor losses, parasitic effects, comparison of interior versus surface PM machines, and various types of machines. This paper will also provide a summary of the commercial applications that involve FSCW synchronous PM machines.read more
Citations
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Journal ArticleDOI
Multilayer Windings Effect on Interior PM Machines for EV Applications
Yawei Wang,Ronghai Qu,Jian Li +2 more
TL;DR: In this article, the effect of the winding layer number on the performance of interior permanent magnet (IPM) synchronous machines equipped with fractional-slot concentrated windings (FSCWs) for electric vehicle applications is studied.
Journal ArticleDOI
Superposition Method for Cogging Torque Prediction in Permanent Magnet Machines With Rotor Eccentricity
TL;DR: In this paper, an analytical method that combines the superposition concept and the subdomain method to predict the cogging torque of permanent magnet (PM) machines with a rotor eccentricity was proposed.
Proceedings ArticleDOI
Fractional-slot concentrated-winding axial-flux permanent-magnet machine with tooth-wound coils
TL;DR: In this paper, the authors presented the finite element analysis validation of a double-stator single-rotor fractional-slot concentrated-winding axial-flux permanent magnet machine with tooth wound coils.
Journal ArticleDOI
Design and Validation of a Synchronous Reluctance Motor With Single Tooth Windings
TL;DR: In this paper, the analysis and experimental validation of a six-slot four-pole synchronous reluctance motor with nonoverlapping fractional slot-concentrated windings is presented.
Journal ArticleDOI
Remarks on Torque Estimation Accuracy in Fractional-Slot Permanent-Magnet Motors
TL;DR: In permanent-magnet (PM) synchronous machines, when using integral-slot windings, the torque computed by using the d-q -axis theory is almost independent of the variation of the flux linkage with the rotor position, but this is not verified when fractional-slot PM motors are used.
References
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Journal ArticleDOI
Synthesis of high performance PM motors with concentrated windings
Jerome Cros,Philippe Viarouge +1 more
TL;DR: In this article, the authors present a synthesis of the structures of three-phase machines with concentrated windings, and a comparative analysis of the performances of the original and traditional structures is performed by using a field calculation software.
Journal ArticleDOI
Field-weakening performance of brushless synchronous AC motor drives
Wen L. Soong,T.J.E. Miller +1 more
TL;DR: In this article, the theoretical and practical limitations to the field-weakening performance of surface permanent magnet, synchronous reluctance and interior permanent magnet motors when driven from an inverter with a limited volt-ampere rating were examined.
Journal ArticleDOI
Design considerations for fractional-slot winding configurations of synchronous machines
TL;DR: In this article, the authors presented some design considerations for synchronous machines characterized by a fractional number of slots per pole per phase, which is a smooth torque, due to the elimination of periodicity between slots and poles.
Proceedings ArticleDOI
Winding factors and Joule losses of permanent magnet machines with concentrated windings
F. Magnussen,Chandur Sadarangani +1 more
TL;DR: In this article, the authors describe methods for designing high performance permanent magnet machines with concentrated windings, including both single and double-layer configurations of concentric windings and verify their theory using FEM analysis.
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Synthesis of high performance PM motors with concentrated windings
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