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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Design of high-torque-density synchronous drives for propulsion of rotary-wing aircraft
TL;DR: In this article, the authors present a design philosophy and guideline for the development of electrical main propulsion drives for rotary-wing aircraft with a MTOW of 3t or lower, and highlight the importance of the mechanical and structural considerations for both the electromagnetic mass and the support structure.
Proceedings ArticleDOI
Evaluation of Fractional Slot Concentrated Winding Permanent Magnet Synchronous Machine for Electric Vehicle Application
TL;DR: In this article, the fractional slot concentrated winding (FSCW) permanent magnet synchronous motors (PMSMs) with different rotor topologies are optimized using Maxwell. And the optimized motors are further analyzed and compared with their electromagnetic performance at no load and its efficiency map.
Proceedings ArticleDOI
Multi-layer windings effect on interior PM machines for EV applications
Yawei Wang,Ronghai Qu,Jian Li +2 more
TL;DR: In this paper, the effect of the winding layer number on the performance of IPM synchronous machines equipped with fractional-slot concentrated windings (FSCW) for electric vehicle (EV) applications is investigated.
Proceedings ArticleDOI
FPGA control and implementation of a multiphase-interleaved PWM inverter for a segmented PMSM
Hsung-Hao Hsu,Ying-Yu Tzou +1 more
TL;DR: A phase shedding control strategy is developed for efficiency optimization when operating in light load condition and a digital PWM modulator with adjustable switching frequency and phase shift has been realized with FPGA.
Proceedings ArticleDOI
Torque production capabilities of electrical machines with planar windings
Francesco Cupertino,S. Ettorre +1 more
TL;DR: The torque production capabilities of electrical machines with planar windings are described and an automated procedure for coils conductors' arrangement is presented, to find the best compromise between the maximization of average torque and the minimization of torque ripple.
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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