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Seamless Wireless Charging of Micro and Small Unmanned Aerial System Through Local Power Transmission Infrastructure

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-19-C-0355
Agency Tracking Number: N19A-019-0090
Amount: $139,608.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: N19A-T019
Solicitation Number: 19.A
Timeline
Solicitation Year: 2019
Award Year: 2019
Award Start Date (Proposal Award Date): 2019-06-03
Award End Date (Contract End Date): 2019-12-09
Small Business Information
270 Point Rd
Eclectic, AL 36024
United States
DUNS: 809220622
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Dr. Nathan Jeong Dr. Nathan Jeong
 Assistant Professor, Department of Electrical & Computer Engineering, The University of Alabama
 (205) 348-4820
 shjeong@eng.ua.edu
Business Contact
 Edward Hackett
Phone: (703) 943-7205
Email: edhackett@ehgroupinc.com
Research Institution
 University of Alabama
 Lauren A. Wilson, J.D. Lauren A. Wilson, J.D.
 
318 Rose Administration Box 870135
Tuscaloosa, AL 35487
United States

 (205) 348-7812
 Nonprofit college or university
Abstract

Wireless charging of unmanned aerial system (UAS) platforms from the environment has the potential to greatly increase flight and mission times. A promising option is to use electromagnetic fields from the power transmission infrastructure as an energy source. EH Group and the University of Alabama propose a design for UAS wireless charging in the near-field environment of the commercial power transmission infrastructure. Conventional coil designs have maximum coupling efficiency only when the plane of the coil is perpendicular to the magnetic field. The key innovation proposed is a novel power-receiving coil that has high coupling efficiency regardless of orientation angle of the UAS with the magnetic field. The technical objectives are to (1) develop a working model of the power-receiving coil and circuit board, (2) conduct analyses to determine coil-based charging performance and battery size requirements under a variety of conditions, and (3) validate the design and analysis through bench testing. The feasibility of the Phase I work will be demonstrated when the proposed novel power-receiving coil achieves charging performance goals within a small or micro UAS considering trade-offs between energy transfer efficiency, resistive loss, size, and weight under multiple environmental conditions and orientations.

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

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