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	Fault identification in hybrid systems based on semi-qualitative analyses
	Peng Zhao ; Wang Wenhui ; Zhou Donghua
	2010-05-06 ; 2010-05-06
关键词	Practical/ discrete systems fault diagnosis fuzzy set theory time-varying systems/ fault identification hybrid system semi-qualitative analyses complex dynamic system fuzzy set approach fuzzy entropy approach hybrid three-tank-system/ C1340G Time-varying control systems C1340D Discrete control systems C1160 Combinatorial mathematics
中文摘要	Hybrid systems have been used to describe complex dynamic systems that involve both continuous and discrete states. The complexity of hybrid systems and the increasing demand for quality, safety, and reliability have made the fault diagnosis of hybrid systems a crucial research topic. This paper describes an integrated fuzzy sets and fuzzy entropy approach to identify faults in hybrid systems. Based on both quantitative information and qualitative knowledge, this semi-qualitative approach uses fuzzy set describing the system character parameter, sequentially constructs a set of fuzzy fault diagnosis rules, computes the weighting coefficient with fuzzy entropy, thereby identifies the faults in hybrid systems. Simulation results for a fault detection and diagnostic system for a hybrid three-tank-system demonstrate the effectiveness of the approach and show that this semi-qualitative method can be used in fault identification of hybrid systems.
语种	英语 ; 英语
出版者	Tsinghua Univ. Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/8887]
专题	清华大学
推荐引用方式 GB/T 7714	Peng Zhao,Wang Wenhui,Zhou Donghua. Fault identification in hybrid systems based on semi-qualitative analyses[J],2010, 2010.
APA	Peng Zhao,Wang Wenhui,&Zhou Donghua.(2010).Fault identification in hybrid systems based on semi-qualitative analyses..
MLA	Peng Zhao,et al."Fault identification in hybrid systems based on semi-qualitative analyses".(2010).

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