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FAULT DIAGNOSIS OF DYNAMIC SYSTEMS BY USING A QUICK IDENTIFICATION METHOD AND ITS APPLICATION TO SHIP PROPULSION SYSTEM
Kousuke Kumamaru* Haruyoshi Kamata*
Katsuhiro Inoue*
* Faculty of Computer Science and Systems Engineering,
Kyushu Institute of Technology Kawazu 680-4, lizuka
820-8502, Fukuoka, Japan
e-mail:kumamaru@ces.kyutech.ac.jp
The paper is concerned with a method of identification-based fault diagnosis for nonlinear continuous-time dynamic systems. A quick identification method is introduced in order to monitor online physical parameters specifying fault modes in the system. A fault diagnosis system which can accommodate for complex fault modes due to multi-simultaneous changes in system parameters is proposed based on the quick identification method. The effectiveness of the method has been confirmed through simulation studies on a ship propulsion system constructed as a standard model for benchmark test of fault diagnosis.
Keywords: Continuous-time system, model-based fault diagnosis, non-linear system, parameter estimation, quick identification
Session slot T-Th-E10: Fault Diagnosis Application Studies II/Area code 7e : Fault Detection, Supervision and Safety of Technical Processes
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