Title :
Fault Tolerance Analysis for Switched Systems Via Global Passivity
Author :
Yang, Hao ; Cocquempot, Vincent ; Jiang, Bin
Abstract :
In this brief, we introduce the passivity theory into the fault tolerance analysis for switched systems. We propose a ldquoglobal passivityrdquo concept which means that the total energy stored by the switched system is less than the total energy supplied from the outside. The individual passivity of each mode is not required, and the stability of the system can be achieved via the global energy dissipativity in the presence of faults. We further provide a ldquoperiodic fault tolerant passivityrdquo to check the fault tolerance easily. The obtained results are extended to feedback interconnected systems. A switched RLC circuit example is taken to illustrate the efficiency of the proposed results.
Keywords :
RLC circuits; circuit reliability; fault tolerance; switched networks; fault tolerance analysis; feedback interconnected systems; global energy dissipativity; global passivity; switched RLC circuit; switched systems; Automation; Circuit faults; Fault detection; Fault diagnosis; Fault tolerance; Fault tolerant systems; RLC circuits; Stability; Switched systems; Switching circuits; Fault diagnosis; fault tolerance; passivity; switched RLC circuits; switched systems;
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2008.2008059