Servo-Drive Amplifier for Micro-Satellite Superconductor-Levitated Flywheels

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$69,995.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
NNG04CA52C
Agency Tracking Number:
034156
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Barrett Technology
625 Mount Auburn St., Cambridge, MA, 02138
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
620793612
Principal Investigator:
William Townsend, PhD
Principal Investigator
(617) 252-9000
wt@barrett.com
Business Contact:
Burt Doo
Chief Operating Officer
(617) 252-9000
bd@barrett.com
Research Institution:
n/a
Abstract
A new servo-drive technology is available to support energy storage and navigation for micro-satellites. Exploiting the ?pinning? effect of high-temperature superconductors, high-speed momentum wheels can be suspended in a stable condition that is virtually independent of speed (unlike magnetic levitation). Aside from the motor drive, this levitation system is compact and highly energy efficient. To be effective it requires a drive that is equally compact and energy efficient. It also requires extremely high servo performance with especially low torque ripple. Barrett proposes an innovation to support such a compact/efficient drive amplifier. Phase I will focus on feasibility of this approach and Phase II will support prototype design and aggressive space qualification of this unit.

* information listed above is at the time of submission.

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