• Prashant Mhaskar
  • Jinfeng Liu
  • Panagiotis D. Christofides


This chapter relaxes the assumption of availability of a redundant control configuration and presents a “safe-parking” approach to handle faults. The safe-parking approach dictates driving the system to a (appropriately chosen) temporary operating point (the so-called safe-park point) until the fault is rectified. The choice of the safe-park point is based on stability and performance considerations, and also necessitates fault diagnosis (estimating the magnitude of the fault), going beyond FDI. A comprehensive mechanism for Fault-detection and Diagnosis (FDD) and safe-parking is presented and illustrated through chemical process examples.


Equilibrium Point Stability Region Continuous Stir Tank Reactor Nominal Operation Input Constraint 
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Copyright information

© Springer-Verlag London 2013

Authors and Affiliations

  • Prashant Mhaskar
    • 1
  • Jinfeng Liu
    • 2
  • Panagiotis D. Christofides
    • 3
  1. 1.Department of Chemical EngineeringMcMaster UniversityHamiltonCanada
  2. 2.Dept. of Chemical & Mat. EngineeringUniversity of AlbertaEdmontonCanada
  3. 3.Dept. of Chemical & Biomolecular Engin.University of CaliforniaLos AngelesUSA

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