Title
Bayesian Nonparametric Modeling Of Markov Chains For Detection Of Thermoacoustic Instabilities
Abstract
This paper proposes a Bayesian nonparametric method for detecting thermoacoustic instabilities in gas turbine engines in real-time, where the underlying algorithms are formulated in the symbolic domain and the resulting patterns are constructed from symbolized pressure measurements as probabilistic finite state automata (PFSA) that is built upon a finite-memory Markov model, called D-Markov machine. The Bayesian nonparametric structure is adopted for: (i) automated selection of parameters in the D-Markov machine, and (ii) online sequential testing, to provide a data-driven and coherent statistical analysis of combustion instability phenomena without relying on numerically intensive models of combustion dynamics. The proposed method has been experimentally validated on the time series generated from a laboratory-scale combustion apparatus. The results of instability prediction, derived from the time series, have been compared with those of other existing techniques.
Year
Venue
Field
2017
2017 AMERICAN CONTROL CONFERENCE (ACC)
Time series,Markov process,Computer science,Control theory,Instability,Artificial intelligence,Combustion,Variable-order Bayesian network,Markov model,Markov chain,Algorithm,Machine learning,Bayesian nonparametrics
DocType
ISSN
Citations 
Conference
0743-1619
0
PageRank 
References 
Authors
0.34
4
3
Name
Order
Citations
PageRank
Sihan Xiong101.01
Jihang Li200.34
Ray, A.3832184.32