The output feedback control synthesis for a class of singular fractional order systems. (July 2017)

• Record Type: Journal Article
• Authors: Wei, Yiheng; Tse, Peter W.; Yao, Zhao; Wang, Yong
• Is Part Of: ISA transactions. Volume 69(2017:Jul.)
• Page Start: 1
• Page End: 9
• Publication Date: 2017-07
• Subjects: Fractional order system -- Singular system -- Normalization -- Output feedback -- Parameter uncertainty -- LMI; Engineering instruments -- Periodicals; Engineering instruments; Periodicals; Electronic journals; 629.805
• DOI: 10.1016/j.isatra.2017.04.020
• Languages: English
• ISSNs: 0019-0578

Abstract

Abstract: This paper investigates the output feedback normalization and stabilization for singular fractional order systems with the fractional commensurate order α belonging to ( 0, 2 ) . Firstly, an effective criterion for the normalization of singular fractional order systems is given with output differential feedback. Afterwards, both static and dynamic output feedback stabilization of such normalized fractional order systems are derived. Besides, the robustness to the parameter uncertainty and the initial conditions are discussed in detail. All the results are given via linear matrix inequality (LMI) formulation. Finally, three numerical examples are provided to demonstrate the applicability of the proposed approaches. Abstract : Highlights: The output signal is employed to normalize and stabilize the signal fractional order systems. Both static and dynamic output feedback controllers have been designed. Both the 0 < α < 1 case and the 1 < α < 2 case are investigated. The equivalence is derived with splitting the commensurate order. Our FOTD is adopted to generate the needed derivative signal online.