Fan and Motor Co-Optimization for a Distributed Electric Aircraft Propulsion System

被引:10
作者
Chandel, Durgesh [1 ]
Reband, John D. [2 ]
Hall, David K. [3 ]
Balachandran, Thanatheepan [4 ]
Xiao, Jianqiao [4 ]
Haran, Kiruba S. [4 ]
Greitzer, Edward M. [1 ]
机构
[1] MIT, Dept Aeronaut & Astronaut, Cambridge, MA 02139 USA
[2] Air Force Res Lab, Aerosp Syst Directorate, Wright Patterson AFB, OH 45433 USA
[3] Penn State Univ, Dept Aerosp Engn, University Pk, PA 16802 USA
[4] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA
关键词
AC motors; aircraft propulsion; electric machines; geometric programming; superconducting (SC) magnets; system analysis and design; THERMAL-CONDUCTIVITY; DESIGN;
D O I
10.1109/TTE.2022.3204202
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
An integrated modeling approach is presented for the conceptual design of electric aircraft propulsors, with application to NASA's hydrogen fuel-cell-powered transport aircraft concept, being developed under the Center for High-Efficiency Electrical Technologies for Aircraft (CHEETA) program. The distributed boundary layer ingesting (BLI) fan module and the fan-hub-embedded MgB2-based fully superconducting (SC) electric motors are modeled together using signomial programming (SP). An all-at-once SP optimization eliminates external design iterations between modules and provides sensitivities to design parameters as part of the optimization solution. In addition, the approach developed here is modular and component models can be easily added to study various aircraft architectures. A trade space exploration of CHEETA propulsors indicates a highly distributed 32-wing and fuselage-mounted propulsor configuration, powered by 0.5- and 1.6-MW motors, respectively, as the optimal, yielding 16% reduction in the aircraft electric energy consumption relative to a conventional twin-electric underwing propulsors' design. However, the design selected is a nine-propulsor configuration with 2.4-MW motors (power range more suitable for fully SC architecture), with about 14% power savings. The fan-embedded motor architecture leads to fan hubto-tip ratios of up to 0.5, which are higher than typical.
引用
收藏
页码:3579 / 3589
页数:11
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