Multiphysics Optimisation of a Slotless Permanent Magnet Machine with a Composite Winding Layer

Suzanne Collins; Philip H. Mellor; Nick Simpson

doi:10.1109/ECCE44975.2020.9235799

Multiphysics Optimisation of a Slotless Permanent Magnet Machine with a Composite Winding Layer

Suzanne Collins, Philip H. Mellor, Nick Simpson

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

Abstract

Ambitious power density targets for future electric propulsion systems in air transport necessitate the development of novel electrical machine topologies. The Slot-Less Permanent Magnet machine (SLPM) topology presents a substantial weight reduction and opportunity to exploit innovative winding designs and high performance materials. However, a limiting feature of SLPM machines is the exposure of the stator winding layer to the rotor reaction torque which would normally be borne by the mechanically strong stator teeth. To address this issue, an SLPM machine with a glass fibre composite winding layer has been developed and the specific output benefits of using a skewed winding with no end overhang is assessed. An analytical multiphysics design procedure and optimisation routine is presented to maximise the mass power density (kW/kg) of an SLPM composite machine with the design benchmarked against a conventional slotted permanent magnet machine to highlight the volume and mass benefits of the SLPM topology.

Original language	English
Title of host publication	ECCE 2020 - IEEE Energy Conversion Congress and Exposition
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	477-484
Number of pages	8
ISBN (Electronic)	9781728158266
DOIs	https://doi.org/10.1109/ECCE44975.2020.9235799
Publication status	Published - 11 Oct 2020
Event	12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020 - Virtual, Detroit, United States Duration: 11 Oct 2020 → 15 Oct 2020

Publication series

Name	ECCE 2020 - IEEE Energy Conversion Congress and Exposition

Conference

Conference	12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020
Country	United States
City	Virtual, Detroit
Period	11/10/20 → 15/10/20

Bibliographical note

Funding Information:
The authors wish to thank the EPSRC for supporting this research through a Doctoral Training Partnership.

Publisher Copyright:
© 2020 IEEE.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Keywords

aerospace propulsion
Faulhaber winding
multi-functional composites
slotless machine

Access to Document

10.1109/ECCE44975.2020.9235799

Link to publication in Scopus

Cite this

Collins, S., Mellor, P. H., & Simpson, N. (2020). Multiphysics Optimisation of a Slotless Permanent Magnet Machine with a Composite Winding Layer. In ECCE 2020 - IEEE Energy Conversion Congress and Exposition (pp. 477-484). [9235799] (ECCE 2020 - IEEE Energy Conversion Congress and Exposition). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ECCE44975.2020.9235799

@inproceedings{02fb57f2f34142dba0a74c96a8df7b6a,

title = "Multiphysics Optimisation of a Slotless Permanent Magnet Machine with a Composite Winding Layer",

abstract = "Ambitious power density targets for future electric propulsion systems in air transport necessitate the development of novel electrical machine topologies. The Slot-Less Permanent Magnet machine (SLPM) topology presents a substantial weight reduction and opportunity to exploit innovative winding designs and high performance materials. However, a limiting feature of SLPM machines is the exposure of the stator winding layer to the rotor reaction torque which would normally be borne by the mechanically strong stator teeth. To address this issue, an SLPM machine with a glass fibre composite winding layer has been developed and the specific output benefits of using a skewed winding with no end overhang is assessed. An analytical multiphysics design procedure and optimisation routine is presented to maximise the mass power density (kW/kg) of an SLPM composite machine with the design benchmarked against a conventional slotted permanent magnet machine to highlight the volume and mass benefits of the SLPM topology.",

keywords = "aerospace propulsion, Faulhaber winding, multi-functional composites, slotless machine",

author = "Suzanne Collins and Mellor, {Philip H.} and Nick Simpson",

note = "Funding Information: The authors wish to thank the EPSRC for supporting this research through a Doctoral Training Partnership. Publisher Copyright: {\textcopyright} 2020 IEEE. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.; 12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020 ; Conference date: 11-10-2020 Through 15-10-2020",

year = "2020",

month = oct,

day = "11",

doi = "10.1109/ECCE44975.2020.9235799",

language = "English",

series = "ECCE 2020 - IEEE Energy Conversion Congress and Exposition",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

pages = "477--484",

booktitle = "ECCE 2020 - IEEE Energy Conversion Congress and Exposition",

address = "United States",

}

Collins, S , Mellor, PH & Simpson, N 2020, Multiphysics Optimisation of a Slotless Permanent Magnet Machine with a Composite Winding Layer. in ECCE 2020 - IEEE Energy Conversion Congress and Exposition., 9235799, ECCE 2020 - IEEE Energy Conversion Congress and Exposition, Institute of Electrical and Electronics Engineers (IEEE), pp. 477-484, 12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020, Virtual, Detroit, United States, 11/10/20. https://doi.org/10.1109/ECCE44975.2020.9235799

Multiphysics Optimisation of a Slotless Permanent Magnet Machine with a Composite Winding Layer. / Collins, Suzanne ; Mellor, Philip H.; Simpson, Nick.

ECCE 2020 - IEEE Energy Conversion Congress and Exposition. Institute of Electrical and Electronics Engineers (IEEE), 2020. p. 477-484 9235799 (ECCE 2020 - IEEE Energy Conversion Congress and Exposition).

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

TY - GEN

T1 - Multiphysics Optimisation of a Slotless Permanent Magnet Machine with a Composite Winding Layer

AU - Collins, Suzanne

AU - Mellor, Philip H.

AU - Simpson, Nick

N1 - Funding Information: The authors wish to thank the EPSRC for supporting this research through a Doctoral Training Partnership. Publisher Copyright: © 2020 IEEE. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/10/11

Y1 - 2020/10/11

N2 - Ambitious power density targets for future electric propulsion systems in air transport necessitate the development of novel electrical machine topologies. The Slot-Less Permanent Magnet machine (SLPM) topology presents a substantial weight reduction and opportunity to exploit innovative winding designs and high performance materials. However, a limiting feature of SLPM machines is the exposure of the stator winding layer to the rotor reaction torque which would normally be borne by the mechanically strong stator teeth. To address this issue, an SLPM machine with a glass fibre composite winding layer has been developed and the specific output benefits of using a skewed winding with no end overhang is assessed. An analytical multiphysics design procedure and optimisation routine is presented to maximise the mass power density (kW/kg) of an SLPM composite machine with the design benchmarked against a conventional slotted permanent magnet machine to highlight the volume and mass benefits of the SLPM topology.

AB - Ambitious power density targets for future electric propulsion systems in air transport necessitate the development of novel electrical machine topologies. The Slot-Less Permanent Magnet machine (SLPM) topology presents a substantial weight reduction and opportunity to exploit innovative winding designs and high performance materials. However, a limiting feature of SLPM machines is the exposure of the stator winding layer to the rotor reaction torque which would normally be borne by the mechanically strong stator teeth. To address this issue, an SLPM machine with a glass fibre composite winding layer has been developed and the specific output benefits of using a skewed winding with no end overhang is assessed. An analytical multiphysics design procedure and optimisation routine is presented to maximise the mass power density (kW/kg) of an SLPM composite machine with the design benchmarked against a conventional slotted permanent magnet machine to highlight the volume and mass benefits of the SLPM topology.

KW - aerospace propulsion

KW - Faulhaber winding

KW - multi-functional composites

KW - slotless machine

UR - http://www.scopus.com/inward/record.url?scp=85097202752&partnerID=8YFLogxK

U2 - 10.1109/ECCE44975.2020.9235799

DO - 10.1109/ECCE44975.2020.9235799

M3 - Conference Contribution (Conference Proceeding)

AN - SCOPUS:85097202752

T3 - ECCE 2020 - IEEE Energy Conversion Congress and Exposition

SP - 477

EP - 484

BT - ECCE 2020 - IEEE Energy Conversion Congress and Exposition

PB - Institute of Electrical and Electronics Engineers (IEEE)

T2 - 12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020

Y2 - 11 October 2020 through 15 October 2020

ER -

Collins S , Mellor PH , Simpson N. Multiphysics Optimisation of a Slotless Permanent Magnet Machine with a Composite Winding Layer. In ECCE 2020 - IEEE Energy Conversion Congress and Exposition. Institute of Electrical and Electronics Engineers (IEEE). 2020. p. 477-484. 9235799. (ECCE 2020 - IEEE Energy Conversion Congress and Exposition). https://doi.org/10.1109/ECCE44975.2020.9235799