Output Tracking Control for Fractional-Order Positive Switched Systems With Input Time Delay
- Authors
- Sakthivel, R.; Mohanapriya, S.; Ahn, C. K.; Karimi, H. R.
- Issue Date
- 6월-2019
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Fractional-order systems; positive switched systems; output tracking control; equivalent-input-disturbance; Smith predictor
- Citation
- IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, v.66, no.6, pp.1013 - 1017
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
- Volume
- 66
- Number
- 6
- Start Page
- 1013
- End Page
- 1017
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/65241
- DOI
- 10.1109/TCSII.2018.2871034
- ISSN
- 1549-7747
- Abstract
- The objective of this brief is to focus on the problem of output tracking control for a class of fractional-order positive switched systems via an observer-based controller method that combines equivalent-input-disturbance approach and Smith predictor. By employing Lyapunov theory together with average dwell-time approach, a new exponential stability criterion is derived in terms of linear matrix inequalities for the resulting closed-loop system. Based on the derived delay-dependent criterion, a design method of the proposed controller is then presented. The designed controller can assure that the output signals of the system trace the specified reference signals within the preferred neighborhood of the equilibrium. Furthermore, the solvability inclusive conditions for the proposed controller design of the considered system are established according to the state being available or not. Numerical simulation results are provided to demonstrate the strong disturbance rejection capability and the superiority of the proposed control design method over some existing ones.
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