Comparison of interior and surface PM machines equipped with fractional-slot concentrated windings for hybrid traction applications

Reddy, Patel Bhageerath; El-Refaie, Ayman; Huh, Kang Y.; Tangudu, Jagadeesh; Jahns, T.M.

doi:10.1109/ecce.2011.6064067

Cited by 39 publications

(36 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…PM based machines and SRM drives typically utilise fractional slot-concentrated windings (FSCW) due to their inherent advantages [11]. Many PM machine designs have been presented [12,13] with one IM being presented [14] and SRM The authors are with the Power Electronics, Machines and Drives Research Group, School of Electrical and Electronic Engineering, Newcastle University, Newcastle-Upon-Tyne, NE1 7RU, UK (e-mail: c.m.spargo@ncl.ac.uk).…”

Section: Introductionmentioning

confidence: 99%

Application of Fractional-Slot Concentrated Windings to Synchronous Reluctance Motors

Spargo

Mecrow

Widmer

et al. 2015

IEEE Trans. on Ind. Applicat.

View full text Add to dashboard Cite

Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. show that the fractional slot-concentrated wound machine can exhibit a higher efficiency and torque density when compared to conventional synchronous reluctance and the induction motor and the electromagnetic model is validated through testing of a prototype machine with thermal results also reported. Despite the many benefits, high torque ripple and low power factor reduce the topologies desirability and are identified as an area of further research.

show abstract

Section: Introductionmentioning

confidence: 99%

Application of Fractional-Slot Concentrated Windings to Synchronous Reluctance Motors

Spargo

Mecrow

Widmer

et al. 2015

IEEE Trans. on Ind. Applicat.

View full text Add to dashboard Cite

show abstract

“…In the past decades, PMSMs equipped with fractional-slot concentrated windings (FSCWs) have increasingly been used in EV applications [1][2][3][4][5][6][7]. With such windings the concentrated coils are wound either on adjacent or alternate teeth, which reduces the end winding length.…”

Section: Introductionmentioning

confidence: 99%

Research on a 20-Slot/22-Pole Five-Phase Fault-Tolerant PMSM Used for Four-Wheel-Drive Electric Vehicles

Sui

Zheng

et al. 2014

Energies

View full text Add to dashboard Cite

This paper presents a five-phase fault-tolerant permanent-magnet synchronous machine (PMSM) used for electric vehicles. In multiphase fault-tolerant PMSMs equipped with fractional-slot concentrated windings, excessive magneto-motive force (MMF) harmonics can lead to thermal demagnetization of the permanent magnets (PMs). In order to reduce the lower-order harmonics, the origins of the 2-pole harmonic in conventional winding configurations are investigated, and an unequal-turn winding configuration is applied to cancel the lower-order harmonics. The main electromagnetic performances of the unequal-turn winding configuration are investigated and compared with conventional winding topologies. Based on the principle of maintaining constant instantaneous power, the fault-tolerant control strategies for open-circuits of up to two phases are developed. All of the investigations are verified by finite element analysis (FEA) results.

show abstract

“…These isolation features aim to eliminate any impact induced by the faulty winding upon the remaining phases, so as to provide a reliable transition to the stage of post-fault control and continuous operation. The fractional-slot concentrated winding machines, in which the stator windings are non-overlapped and wrapped around all teeth or alternate teeth, cater to the requirement of the above isolation features [9][10][11]. Especially, by employing the alternate-teeth-wound fractional-slot concentrated windings, the coils are alternatively wound around the stator teeth, which provides an advantage of thermal isolation and physical isolation of the stator phase windings [12,13].…”

Section: Introductionmentioning

confidence: 99%

Investigation of a Novel 24-Slot/14-Pole Six-Phase Fault-Tolerant Modular Permanent-Magnet In-Wheel Motor for Electric Vehicles

Zheng

Lei

et al. 2013

Energies

View full text Add to dashboard Cite

Abstract:In this paper, a six-phase fault-tolerant modular permanent magnet synchronous machine (PMSM) with a novel 24-slot/14-pole combination is proposed as a high-performance actuator for wheel-driving electric vehicle (EV) applications. Feasible slot/pole combinations of the fractional-slot concentrated winding six-phase PMSM are elicited and analyzed for scheme selection. The novel 24-slot/14-pole combination is derived from the analysis and suppression of the magnetomotive force (MMF) harmonics. By making use of alternate-teeth-wound concentrated winding configuration, two adjacent coils per phase and unequal teeth widths, the phase windings of the proposed machine is magnetically, thermally isolated, which offers potentials of modular design and fault tolerant capability. Taking advantage of the leakage component of winding inductance, 1.0 per unit short-circuit current is achieved endowing the machine with short-circuit proof capability. Optimal design of essential parameters aiming at low eddy current losses, high winding factor and short-circuit-proof ability are presented to pave the way for a high-quality system implementation.

show abstract

Comparison of interior and surface PM machines equipped with fractional-slot concentrated windings for hybrid traction applications

Cited by 39 publications

References 14 publications

Application of Fractional-Slot Concentrated Windings to Synchronous Reluctance Motors

Application of Fractional-Slot Concentrated Windings to Synchronous Reluctance Motors

Research on a 20-Slot/22-Pole Five-Phase Fault-Tolerant PMSM Used for Four-Wheel-Drive Electric Vehicles

Investigation of a Novel 24-Slot/14-Pole Six-Phase Fault-Tolerant Modular Permanent-Magnet In-Wheel Motor for Electric Vehicles

Contact Info

Product

Resources

About