New Affordable Energy Storage Technologies for Power Grids and Micro-Grids

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-11-M-0349
Agency Tracking Number: N11A-028-0091
Amount: $79,760.00
Phase: Phase I
Program: STTR
Awards Year: 2011
Solitcitation Year: 2011
Solitcitation Topic Code: N11A-T028
Solitcitation Number: 2011.A
Small Business Information
American Maglev Technology of Florida, Inc.
109 Anderson Street Suite 201, Marietta, GA, 30060-
Duns: 867393167
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Andrew Wissing
 Senior Project Manager
 (770) 845-7130
Business Contact
 Andrew Wissing
Title: Senior Project Manager
Phone: (770) 845-7130
Research Institution
 University of Houston
 Roy Weinstein
 Beam Particle Dynamics Lab
4800 Calhoun Road
Houston, TX, 77204-5506
 (713) 553-7715
 Nonprofit college or university
AMT proposes a high density energy storage Electromechanical Battery (EMB) based on a unique flywheel system. The proposed module can both receive and deliver significant amounts of energy repeatedly. The system employs a novel ac homopolar motor design which guarantees a zero magnetic and dissipative loss during the storage cycle, thus eliminating what is the greatest loss component (1%) in comparable permanent magnet based competitors. This motor seamlessly solves the requirement of voltage coupling over a high range of speeds through a field winding which resides on the stator. The monolithic rotor makes it ideally suited to high speed and robustness; thus it offers a higher power density capability over competing energy storage solutions. The 3rd greatest loss component in similar energy storage systems, the active bearing (0.07%), is also reduced (approximately 1/3) by the use of a new trapped field magnet which acts as a magnetic bearing. During Phase I of the project, AMT proposes to complete the design of the EMB, compute the axial and transverse stiffness of the HTS magnetic bearings, and complete the design of the homopolar motor. During the Option Period, the Team will build and test the ac homopolar motor. During a potential Phase II, AMT, with the help of strategic partners, Huntsman Chemical, Inc. and Ricardo Inc., will build and test a 10 KW-hr energy storage module in conjunction with this proposal. Energy storage time and round trip efficiency are two key parameters sought in the testing.

* information listed above is at the time of submission.

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