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Preliminary Design of the Superconducting Rotor for NASA's High-Efficiency Megawatt MotorNASA Glenn Research Center is developing a 1.4~MW high-efficiency electric machine for future electrified aircraft to reduce energy consumption, emissions, and noise. This wound-field, synchronous machine employs a self-cooled, superconducting rotor to achieve excellent specific power and efficiency. The design of the superconducting rotor and the optimization of its electromagnetic and structural responses are analyzed in this paper. Candidate designs are evaluated in terms of absolute performance, specific performance, and performance per cost. It is found that optimizing the electromagnetic response for absolute or specific performance yields designs that are similar to each other, but opposite of the cost-optimized design. A method to define the thermal requirements of the superconducting coils and integrated cryocooler is also presented.
Document ID
20180005328
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Scheidler, Justin J.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
September 17, 2018
Publication Date
July 7, 2018
Subject Category
Mechanical Engineering
Report/Patent Number
GRC-E-DAA-TN57405
Meeting Information
Meeting: AIAA Propulsion & Energy
Location: Cincinnati, OH
Country: United States
Start Date: July 7, 2018
End Date: July 13, 2018
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
WBS: WBS 081876.02.03.05.02.02
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
electric machines
superconductors
electric aircraft propulsion
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