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Fault diagnostics using sliding mode techniques

By K. B. Goh, Sarah K. Spurgeon and N. B. Jones

Abstract

This paper describes the application of sliding mode observation techniques to the problem of fault diagnostics. A specific diesel engine coolant system is considered. A non-linear sliding mode observer is used to monitor the system states. Pertinent system parameters are also monitored using the concept of the equivalent injection signal required to maintain a sliding mode. The parameter estimates from the sliding mode scheme are compared with those generated by a non-linear simulation model and are found to provide good correlation. Results from a laboratory-based power generator set (Genset) are presented to demonstrate the effectiveness of the approach

Year: 2002
DOI identifier: 10.1016/S0967-0661(01)00114-9
OAI identifier: oai:lra.le.ac.uk:2381/1998
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