Three Phase Resonant DC Power Converter for Ion Thrusters

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$599,986.00
Award Year:
2005
Program:
SBIR
Phase:
Phase II
Contract:
NNC05CA18C
Award Id:
69080
Agency Tracking Number:
034768
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
200 Commerce, Unit F, Fort Collins, CO, 80524
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
102723348
Principal Investigator:
Geoff Drummond
Principal Investigator
(970) 482-0191
Geoff@copwr.com
Business Contact:
Geoffrey Drummond
President
(970) 482-0191
Geoff@copwr.com
Research Institution:
n/a
Abstract
Our phase 1 study has revealed many significant benefits of a new class of DC-to-DC power converters with performance that cannot be matched by current flight power systems. The goal of low stored energy has been demonstrated while producing a record-breaking efficiency of 95.5%. This new converter claims this remarkable accomplishment not at just one full power point but at two distinct points. The converter was able to delivery its full rated power of 1kW at 2850V and 5000V load voltages without any physical adjusts. This new converter demonstrated low arc energy and rapid recovery response while powering NEXIS like sub-scale ion optics at Colorado State University. The 1kW prototype's stored energy was less than 1.9mj at 5000Voutput and less than 700?j at 2850V output. In phase 2 we will integrate this new technology into a computerized ion thruster test system capable of delivering 24kW screen power. The planned test system will serve to gain confidence with the new topology and to initiate power system designers to an exciting new technology.

* information listed above is at the time of submission.

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