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
Harmonic Suppression and Torque Ripple Reduction of a High-Speed Permanent Magnet Spindle Motor
Haining Zhao,Shenbo Yu,Feng Sun +2 more
TL;DR: In this paper, the effect of magnetic reluctance slots on the air gap magnetic density waveform of a high-speed permanent magnet spindle motor was investigated and it was concluded that the additional loss and torque ripple of the high speed permanent magnet synchronous motor can be reduced through a reasonable design.
Dissertation
Permanent magnet synchronous machines with fractional slot and concentrated winding configurations
TL;DR: In this paper, an axial pole pairing technique is proposed to reduce the cogging torque and torque ripple in radial flux fractional-slot and concentrated-winding permanent magnet synchronous machines.
Proceedings ArticleDOI
Preliminary study on differences in the performance characteristics of concentrated and distributed winding IPM machines with different rotor topologies
TL;DR: In this article, the authors compared the performance of fractional-slot concentrated-wound (FSCW) and distributed wound (DW) interior permanent magnet (IPM) machines when they were equipped with various commonly used rotor topologies such as V-type and spoke-type magnets.
Proceedings ArticleDOI
Design of a 7-Phase Surface-Mounted PM Machine with Tooth-Concentrated Winding
TL;DR: In this paper, the design of a seven-phase surface-mounted permanent magnet (SPM) machine with tooth-concentrated winding is addressed. And the magnet layer is designed with the constraint of maximizing the average torque and minimizing the ripple torques.
Proceedings ArticleDOI
Inductance evaluation of fractional slot permanent magnet synchronous motors with non-overlappingwinding by analytical approaches
TL;DR: Fractional slot permanent magnet synchronous machines with non-overlapping winding with FSPMSM also known as tooth coil winding permanent synchronous machine (TCW PMSM) have gained intensive attention during the latest decade and their design methods are constantly developed and improved.
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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