期刊
CONTROL ENGINEERING PRACTICE
卷 16, 期 7, 页码 769-786出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.conengprac.2007.08.009
关键词
analytical redundancy; fault detection and isolation; model-based fault diagnosis; dynamic system identification; simulated industrial gas turbine
In this work, a model-based procedure exploiting analytical redundancy for the detection and isolation of faults oil a gas turbine simulated process is presented. The main point of the paper consists of exploiting ail identification scheme in connection with dynamic observer or filter design procedures for diagnostic purposes. Thus, black-box modelling and output estimation approaches to fault diagnosis are in particular advantageous in terms of solution complexity and performance achieved. Moreover, the Suggested scheme is especially useful when robust solutions are considered for minimising the effects of modelling errors and noise, while maximising fault sensitivity. In order to experimentally verify the robustness of the solution obtained, the proposed FDI strategy has been applied to the simulation data of a single-shaft industrial gas turbine plant in the presence of measurement and modelling errors. Hence, extensive simulations of the test-bed process and Monte Carlo analysis are the tools for assessing experimentally the capabilities of the developed FDI scheme, when compared also with different data-driven diagnosis methods. (C) 2007 Elsevier Ltd. All rights reserved.
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