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Proportional stabilization and closed-loop identification of an unstable fractional order process

Tavakoli-Kakhki, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.jprocont.2014.02.019
  3. Abstract:
  4. This paper deals with proportional stabilization and closed-loop step response identification of the fractional order counterparts of the unstable first order plus dead time (FOPDT) processes. At first, the necessary and sufficient condition for stabilizability of such processes by proportional controllers is found. Then, by assuming that a process of this kind has been stabilized by a proportional controller and the step response data of the closed-loop system is available, an algorithm is proposed for estimating the order and the parameters of an unstable fractional order model by using the mentioned data
  5. Keywords:
  6. Stabilization ; Step response ; Unstable fractional order process ; Closed loop identification ; Closed-loop ; First order plus dead time ; Fractional order ; Fractional order models ; Proportional controller ; Stabilizability ; Process control
  7. Source: Journal of Process Control ; Vol. 24, Issue. 5 , 2014 , pp. 542-549 ; ISSN: 09591524
  8. URL: http://www.sciencedirect.com/science/article/pii/S0959152414000729