Fault-Tolerant Control of the (13C) Isotope Separation Cascade

  • Eva-H. DulfEmail author
  • Cristina-I. Muresan
  • Clara M. Ionescu
Part of the Nonlinear Systems and Complexity book series (NSCH, volume 24)


The (13C) isotope separation cascade – from control engineering point of view – is a multivariable, distributed, nonlinear system, with strong interactions between the subsystems. Being a complex chemical plant, a robust, fault-tolerant control is needed. The present paper discusses the idea to redistribute the control task among the subsystems, imposing new set points for each subsystem by local information exchange when a fault occurs. In order to ensure robustness, in the present work fractional order PI controllers are used, having one more degree of freedom in comparison with the classical, integer order PI controllers. The advantages of the method are illustrated by simulation results presenting different real fault scenarios.


Fault tolerant control Nonlinear system PI controllers Fractional order control Complex chemical systems Isotopic separation Physical network Robustness Communication network Relative gray array 



This work was supported by a grant of the Romanian National Authority for Scientific Research and Innovation, CNCS – UEFISCDI, project number PN-II-RU-TE-2014-4-1465, contract number 38/2015 and the Bolyai János grant of the Hungarian Academy of Sciences.


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • Eva-H. Dulf
    • 1
    Email author
  • Cristina-I. Muresan
    • 1
  • Clara M. Ionescu
    • 2
  1. 1.Department of AutomationTechnical University of Cluj-NapocaCluj-NapocaRomania
  2. 2.Department of Electrical energy, Systems and Automation, Research group on Dynamical Systems and ControlGhent UniversityGhentBelgium

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