On the design of coreless permanent magnet machines for electric aircraft propulsion

Damien Lawhorn; Peng Han; Donovin Lewis; Yaser Chulaee; Dan M. Ionel

doi:10.1109/ITEC51675.2021.9490162

On the design of coreless permanent magnet machines for electric aircraft propulsion

Damien Lawhorn
, Peng Han
, Donovin Lewis
, Yaser Chulaee
, Dan M. Ionel

Producción científica: Conference contribution › revisión exhaustiva

28 Citas (Scopus)

Resumen

This paper presents design and prototyping studies for coreless and slotless permanent magnet (PM) machines, which have the potential for high power density and efficiency, and discusses their feasibility for electric aircraft propulsion. The emphasis is on axial flux permanent magnet (AFPM) machines with printed circuit board (PCB) stators that have advantages over their wired counterparts in terms of design flexibility, coil accuracy, manufacturing process reliability, and heat dissipation. Detailed electromagnetic finite element analysis models were developed and employed alongside analytical sizing equations to evaluate the performance of two dual-rotor single-stator coreless AFPM designs employing wave and spiral PCB winding patterns. Design considerations for a 10kW 2, 600rpm rating similar to the NASA X-57 electric aircraft propulsor motors are included. A 26-pole prototype machine has been developed and experimental testing results are presented.

Idioma original	English
Título de la publicación alojada	2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021
Páginas	278-283
Número de páginas	6
ISBN (versión digital)	9781728175836
DOI	https://doi.org/10.1109/ITEC51675.2021.9490162
Estado	Published - jun 21 2021
Evento	2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021 - Chicago, United States Duración: jun 21 2021 → jun 25 2021

Serie de la publicación

Nombre	2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021

Conference

Conference	2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021
País/Territorio	United States
Ciudad	Chicago
Período	6/21/21 → 6/25/21

Nota bibliográfica

Publisher Copyright:
© 2021 IEEE.

Financiación

The support of the National Aeronautics and Space Administration (NASA) for research on electric aircraft power systems and components through the NASA Grant no. KY GF-20-055 and of the National Science Foundation (NSF) for research on special electric machines and power electronics drives through the NSF Award # 1809876 is gratefully acknowledged. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the NASA or the NSF. The support of University of Kentucky, the L. Stanley Pigman Endowment, of ANSYS, Inc., and of Regal Beloit Corp. is also gratefully acknowledged.

Financiadores	Número del financiador
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China	1809876
National Aeronautics and Space Administration	KY GF-20-055

ASJC Scopus subject areas

Automotive Engineering
Electrical and Electronic Engineering
Control and Optimization
Transportation

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10.1109/ITEC51675.2021.9490162

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title = "On the design of coreless permanent magnet machines for electric aircraft propulsion",

abstract = "This paper presents design and prototyping studies for coreless and slotless permanent magnet (PM) machines, which have the potential for high power density and efficiency, and discusses their feasibility for electric aircraft propulsion. The emphasis is on axial flux permanent magnet (AFPM) machines with printed circuit board (PCB) stators that have advantages over their wired counterparts in terms of design flexibility, coil accuracy, manufacturing process reliability, and heat dissipation. Detailed electromagnetic finite element analysis models were developed and employed alongside analytical sizing equations to evaluate the performance of two dual-rotor single-stator coreless AFPM designs employing wave and spiral PCB winding patterns. Design considerations for a 10kW 2, 600rpm rating similar to the NASA X-57 electric aircraft propulsor motors are included. A 26-pole prototype machine has been developed and experimental testing results are presented.",

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Lawhorn, D, Han, P, Lewis, D, Chulaee, Y & Ionel, DM 2021, On the design of coreless permanent magnet machines for electric aircraft propulsion. En 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021. 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021, pp. 278-283, 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021, Chicago, United States, 6/21/21. https://doi.org/10.1109/ITEC51675.2021.9490162

On the design of coreless permanent magnet machines for electric aircraft propulsion. / Lawhorn, Damien; Han, Peng; Lewis, Donovin et al.
2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021. 2021. p. 278-283 (2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021).

Producción científica: Conference contribution › revisión exhaustiva

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On the design of coreless permanent magnet machines for electric aircraft propulsion

Resumen

Serie de la publicación

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Nota bibliográfica

Financiación

ASJC Scopus subject areas

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