Superconducting Resonant Inductive Power Coupling

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX11CI13P
Agency Tracking Number: 100101
Amount: $99,959.00
Phase: Phase I
Program: STTR
Awards Year: 2011
Solicitation Year: 2010
Solicitation Topic Code: T3.01
Solicitation Number: N/A
Small Business Information
Axis Engineering Technologies
One Broadway, 14th Floor, Cambridge, MA, 02142-1187
DUNS: 116106050
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Raymond Sedwick
 Principal Investigator
 (301) 405-0111
Business Contact
 Eric Prechtl
Title: President
Phone: (617) 225-4414
Research Institution
 University of Maryland
 Evan L. Crierie
 3112 Lee Building
College Park, MD, 20742-5141
 () -
 Nonprofit college or university
The proposed effort will develop a technology to wirelessly and efficiently transfer power over hundreds of meters via resonant inductive coupling. The key innovation of this approach is the use of dielectricless high-temperature superconducting (HTS) coils to overcome the limitations in efficiency and range of existing solutions. This approach is informed by existing research models that predict a nominal application of this technique is capable of delivering 100 Watts of power at a distance of 100 meters with over 90% efficiency. A notional application of the technology is to deliver power to rovers exploring the inside of craters at the Lunar poles, where solar power is not available. The naturally low temperatures would eliminate the need for thermal control overhead on the rover, allowing the system to be charged from a completely unenergized state or powered directly. Multiple rovers could be powered by the same transmission system and there would be no pointing requirements for operation. The phase I effort will demonstrate efficient wireless power transfer using superconducting wires as a proof of concept (TRL 3-4), which will be integrated with existing thermal control technology (TRL 4) into a working prototype (TRL 6) at the end of Phase II.

* information listed above is at the time of submission.

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