High-Frequency Electric Machines for Boundary Layer Ingestion Fan Propulsor

Andy Yoon; Jianqiao Xiao; Danny Lohan; Faraz Arastu; Kiruba Haran

doi:10.1109/TEC.2019.2942775

High-Frequency Electric Machines for Boundary Layer Ingestion Fan Propulsor

Andy Yoon, Jianqiao Xiao, Danny Lohan, Faraz Arastu, Kiruba Haran

Research output: Contribution to journal › Article › peer-review

Abstract

High specific power electric motor is a key enabling technology for electric/hybrid-electric propulsion for aircraft. High-frequency, air core machine topologies show potential for high specific power when the machines are integrated within jet engines at high speed, e.g. 15,000 rpm. In this paper, we explore how these machines scale to a boundary layer ingestion (BLI) fan application in newly proposed Single-Aisle Turboelectric Aircraft with an Aft Boundary Layer Propulsor (STARC-ABL). Detailed analytical models that have been experimentally verified, and an evolutionary genetic algorithm are utilized to choose an optimized design for the BLI propulsor. Analyses show that a 2.6 MW, 11 kW/kg, 98% electric motor is achievable.

Original language	English (US)
Article number	8845621
Pages (from-to)	2189-2197
Number of pages	9
Journal	IEEE Transactions on Energy Conversion
Volume	34
Issue number	4
DOIs	https://doi.org/10.1109/TEC.2019.2942775
State	Published - Dec 2019

Keywords

Electrical machines
STARC-ABL
electric aircraft
electric propulsion
high power density
high specific power
high-frequency
slotless

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

Online availability

10.1109/TEC.2019.2942775

Library availability

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Cite this

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title = "High-Frequency Electric Machines for Boundary Layer Ingestion Fan Propulsor",

abstract = "High specific power electric motor is a key enabling technology for electric/hybrid-electric propulsion for aircraft. High-frequency, air core machine topologies show potential for high specific power when the machines are integrated within jet engines at high speed, e.g. 15,000 rpm. In this paper, we explore how these machines scale to a boundary layer ingestion (BLI) fan application in newly proposed Single-Aisle Turboelectric Aircraft with an Aft Boundary Layer Propulsor (STARC-ABL). Detailed analytical models that have been experimentally verified, and an evolutionary genetic algorithm are utilized to choose an optimized design for the BLI propulsor. Analyses show that a 2.6 MW, 11 kW/kg, 98% electric motor is achievable.",

keywords = "Electrical machines, STARC-ABL, electric aircraft, electric propulsion, high power density, high specific power, high-frequency, slotless",

author = "Andy Yoon and Jianqiao Xiao and Danny Lohan and Faraz Arastu and Kiruba Haran",

note = "Funding Information: Manuscript received April 8, 2019; revised August 14, 2019; accepted September 2, 2019. Date of publication September 19, 2019; date of current version November 21, 2019. This work was supported by NASA under a Small Business Innovation Research (SBIR) Program Award Contract 80NSSC18P1898. Paper no. TEC-00409-2019. (Corresponding author: Andy Yoon.) A. Yoon, J. Xiao, and K. Haran are with the Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA (e-mail: yoon62@illinois.edu; jxiao14@illinois.edu; kharan@illinois.edu). Publisher Copyright: {\textcopyright} 1986-2012 IEEE.",

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N1 - Funding Information: Manuscript received April 8, 2019; revised August 14, 2019; accepted September 2, 2019. Date of publication September 19, 2019; date of current version November 21, 2019. This work was supported by NASA under a Small Business Innovation Research (SBIR) Program Award Contract 80NSSC18P1898. Paper no. TEC-00409-2019. (Corresponding author: Andy Yoon.) A. Yoon, J. Xiao, and K. Haran are with the Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA (e-mail: yoon62@illinois.edu; jxiao14@illinois.edu; kharan@illinois.edu). Publisher Copyright: © 1986-2012 IEEE.

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High-Frequency Electric Machines for Boundary Layer Ingestion Fan Propulsor

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