Automated Fault Diagnostics, Prognostics, and Recovery in Spacecraft Power Systems

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX08CA08C
Agency Tracking Number: 067323
Amount: $599,890.00
Phase: Phase II
Program: SBIR
Awards Year: 2008
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
Qualtech Systems, Inc.
100 Great Meadow Road, Suite 603, Wethersfield, CT, 06109
Duns: 808837496
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Sudipto Ghoshal
 Principal Investigator
 (860) 257-8014
Business Contact
 Sudipto Ghoshal
Title: Business Official
Phone: (860) 257-8014
Research Institution
Fault detection and isolation (FDI) in spacecraft's electrical power system (EPS) has always received special attention. However, the power systems health management techniques have generally been limited to the energy sources and storage elements. Furthermore, these functions have been performed off-line by mission planners for the sole purpose of estimating future energy availability and effective device lifetime. As new programs and vehicles developed for space exploration, degradation analysis and prognostics in spacecraft EPS are becoming key issues for safety and success of these missions. QSI propose a novel approach to utilize ISHM decisions to estimate power generation, storage and delivery capabilities, and subsequently using the information for generating optimal reactive mission plans to maximize the mission success probability. The key innovations in the proposed effort are 1). Utilization of diagnostic, prognostic, and recovery decisions to estimate the power supply capability of a spacecraft EPS and assess its reliability; 2). Development of an automated process to optimally utilize the available power supply capability with consideration for maximizing mission success probability; 3). Generation of optimal reconfiguration options and concomitant control actions for spacecraft EPS by using the onboard reactive planner and universal executive.

* information listed above is at the time of submission.

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