DocumentCode :
2063076
Title :
Pattern analysis in real time with smart power sensor
Author :
Kim, Byoung Uk ; Lynn, Chris ; Kunst, Neil ; Dudgeon, Tom
Author_Institution :
Ridgetop Group, Inc., Tucson, AZ, USA
fYear :
2010
fDate :
6-13 March 2010
Firstpage :
1
Lastpage :
8
Abstract :
The current state of the art in electronic prognostic health management systems does not fully support detection, collection, and remediation of real-time faults. As a result, knowledge has not been captured from an actual platform failure mechanism. Thus, point-of-failure feedback cannot be applied by system designers or operators to improve lifecycle weak links in replacement platforms, or to strengthen effectiveness of mission-critical platforms. Our innovation makes it possible to extract and analyze the power system´s eigenvalues, which are related to the intrinsic frequencies of the power system that determine correlations between extracted features and state of health (SoH). In-situ electronic prognostics for power systems are crucial for attaining a sound theoretical basis of health status. To provide correlation information such as state of health (SOH) using pattern analysis with real-time data from a non-intrusive smart power sensor, Ridgetop researched using data-driven modeling with a proposed health distance and support vector machines (SVMs) with signatures in a standard IEEE 1451-enabled smart power sensor. Results of this study indicate that a fault pattern analysis methodology overcomes certain disadvantages of the standard failure modes and effects analysis (FMEA) approach, which does not account for the contribution of unobserved failure to a degradation trajectory. The efficacy of the proposed pattern analysis approach is illustrated with test results showing critical distinction in pattern analysis and test data acquired from a real-time IEEE 1451-enabled smart power sensor testbed, and monitored via a testbed with appropriate instrumentation.
Keywords :
electrical engineering computing; fault diagnosis; intelligent sensors; support vector machines; SVM; data-driven modeling; degradation trajectory; electronic prognostic health management systems; failure mechanism; failure modes and effects analysis; in-situ electronic prognostics; pattern analysis; power system eigenvalue extraction; real-time IEEE 1451-enabled smart power sensor; real-time faults; smart power sensor; state of health; support vector machines; Data mining; Failure analysis; Fault detection; Intelligent sensors; Pattern analysis; Power system analysis computing; Power system management; Power system modeling; Real time systems; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Aerospace Conference, 2010 IEEE
Conference_Location :
Big Sky, MT
ISSN :
1095-323X
Print_ISBN :
978-1-4244-3887-7
Electronic_ISBN :
1095-323X
Type :
conf
DOI :
10.1109/AERO.2010.5446819
Filename :
5446819
Link To Document :
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