Lightweight, Efficient Power Converters for Advanced Turboelectric Aircraft Propulsion Systems

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX10CC71P
Agency Tracking Number: 094529
Amount: $99,994.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: A2.01
Solicitation Number: N/A
Small Business Information
P.O. Box 227, Ballston Spa, NY, 12020-0227
DUNS: 021688440
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Michael Hennessy
 Principal Investigator
 (518) 885-6436
Business Contact
 Eduard Mueller
Title: Research Physicist
Phone: (518) 885-6436
Research Institution
NASA is investigating advanced turboelectric aircraft propulsion systems that utilize superconducting motors to drive a number of distributed turbofans. In an early-stage concept, two superconducting turbine generators, mounted on each of the wing tips, are used to supply electrical power to 16 superconducting motors. Conventional electric motors are too large and heavy to be practical for this application, and so superconducting motors are required. These would operate at a temperature near that of liquid hydrogen, between 20 and 65 K. In order to improve maneuverability of the aircraft, variable speed power converters would be required to throttle power to the turbofans. The low operating temperature and the need for lightweight components that place a minimum of additional heat load on the refrigeration system opens the possibility of incorporating extremely efficient cryogenic power conversion technology. A complete study of cryogenic power conversion equipment for use in this application is the focus of this proposal. MTECH has designed, built, and tested a number of cryogenic inverters for different applications, and will adapt the cryogenic power technologies it has developed to the NASA application in this program.

* Information listed above is at the time of submission. *

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