High-Voltage Cryo-Power Inverter

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: N00173-01-P-2015
Agency Tracking Number: 01-0379
Amount: $64,996.00
Phase: Phase I
Program: SBIR
Awards Year: 2001
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
9 Patroon Place, Ballston Lake, NY, 12019
DUNS: 021688440
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Otward Mueller
 President, LTE
 (518) 399-6516
Business Contact
 Michael Hennessy
Title: President, MTEK
Phone: (518) 877-5996
Email: MJHennessy45@aol.com
Research Institution
The new concept of Cryogenic Power Conversion (CPC) using low temperature operated semiconductor devices and components promises higher efficiencies, drastic size, weight and cost reductions for certain suitable military and commercial applications. ThisSBIR proposes to expand the CPC-concept to the high-voltage (3-9 kV) and megawatt domain with the design and demonstration of a high-voltage cryo-cooled inverter for incorporation into DE weapon systems on missiles and tactical aircraft. It will beimplemented using new commercially available high-power devices (HV-IGBTs, IGCTs, MTOs, or IEGTs). As part of this project new circuits as well as other necessary components (inductors, transformers, capacitors) will be developed and evaluated atcryogenic temperatures (77K-200K). In Phase I a multi-kilovolt prototype inverter will be designed, assembled and tested. It is expected that higher output levels, reduced switching losses, higher power density, better thermal management, longerlifetimes, and improved reliability can be demonstrated through operation at the temperature of liquid nitrogen (77 K) or higher. Based on the Phase I prototypes and results higher voltage inverters will be developed in Phase II to address specificneeds of BMDO. Cryo-cooled coaxial or transmission line transformers using ferrite toroids provide the required higher voltages (>10 kV). Possible commercial applications of the Cryo-Inverters employing IGBTs, MTOs and/or IGCTs include solid-statetransformers, motor drives, up/down converters, adjustable speed drives (ASD), multi-phase inverters, etc., in the multi-megawatt range, especially for use in vehicles (ships, missiles, airplanes, buses, locomotives,etc.) where small size and weight areimportant.

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

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government