Design of facult-tolerant control systems: passive and active approaches.

• Autorzy: Tzafestas C. S. , Rigatos G.G. , Tzafestas S. G.
• Języki publikacji: EN

Abstrakty

EN

This paper addresses the issue of studying and improving the reliability and fault tolerance of a given dynamic system using appropriate control design methodologies. The attention is focused on reviewing the two basic approaches to fault tolerance/reliability, namely: the passive and the active approaches. In the passive approach a wide description of system failures is adopted, and a robust control is sought that can tolerate failures as perturbations from a nominal model. On the other hand, in the active approach which is based on an accurate description of failures, through a failure diagnostic unit, the control can be reconfigured on-line. The passive approach is often easier to implement, but can cope with minor failures. So in actual systems the passive solution is used to save time until a more sophisticated active algorithm enters into the system. The theoretical results are illustrated with four application examples.

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Systems Science
• Rocznik: 1998
• Tom: Vol. 24, nr 4
• Strony: 5--28
• Opis fizyczny: Bibliogr. 50 poz., rys. 11

Twórcy

autor

Tzafestas C. S.

autor

Rigatos G.G.

autor

Tzafestas S. G.

• Intelligent Robotics and Automation Laboratory, Department of Electrical and Computer Engineering, National Technical University of Athens, Zografou,15773, Athens, Greece.