High-Voltage Cryo-Power Inverter

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$64,996.00
Award Year:
2001
Program:
SBIR
Phase:
Phase I
Contract:
N00173-01-P-2015
Award Id:
53069
Agency Tracking Number:
01-0379
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
9 Patroon Place, Ballston Lake, NY, 12019
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
021688440
Principal Investigator:
Otward Mueller
President, LTE
(518) 399-6516
LTEMueller@aol.com
Business Contact:
Michael Hennessy
President, MTEK
(518) 877-5996
MJHennessy45@aol.com
Research Institution:
n/a
Abstract
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.

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