文章基本信息

标题：Analysis and Design of Diagnosis Systems Based on the Structural Differential Index
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作者：Erik Frisk ; Mattias Krysander ; Jan Åslund 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2017
卷号：50
期号：1
页码：12236-12242
DOI：10.1016/j.ifacol.2017.08.2129
语种：English
出版社：Elsevier
摘要：AbstractStructural approaches have shown to be useful for analyzing and designing diagnosis systems for industrial systems. In simulation and estimation literature, related theories about differential index have been developed and, also there, structural methods have been successfully applied for simulating large-scale differential algebraic models. A main contribution of this paper is to connect those theories and thus making the tools from simulation and estimation literature available for model based diagnosis design. A key step in the unification is an extension of the notion of differential index of exactly determined systems of equations to overdetermined systems of equations. A second main contribution is how differential-index can be used in diagnosability analysis and also in the design stage where an exponentially sized search space is significantly reduced. This allows focusing on residual generators where basic design techniques, such as standard state-observation techniques and sequential residual generation are directly applicable. The developed theory has a direct industrial relevance, which is illustrated with discussions on an automotive engine example.
关键词：KeywordsFault diagnosisdifferential algebraic equationsdifferential indexstructural methodresidual generationfault diagnosability