Multi-criteria based approach for fault tolerant actuator selection

This paper deals with the problem of fault tolerant actuator network design. Multi criteria based algorithm is proposed to provide a fault tolerant architecture. These criteria are strong redundancy degree and a new criterion based on the number of admissible losses situations. The new criterion, computed for each actuator, guarantees some robustness for operating safety. An oriented graph is used to compute these criteria with respect to some given properties. Some relations with strong and weak redundancy degrees are given for computing them easily. The proposed algorithm will be illustrated with an academic example.