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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
Acquisition Source
Glenn Research Center
Document Type
Scheidler, Justin
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
November 1, 2018
Publication Date
July 10, 2018
Subject Category
Mechanical Engineering
Report/Patent Number
Meeting Information
Meeting: AIAA Propulsion and Energy Forum
Location: Cincinnati, OH
Country: United States
Start Date: July 9, 2018
End Date: July 11, 2018
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
WBS: WBS 081876.
Distribution Limits
Work of the US Gov. Public Use Permitted.
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