In this paper a new fault tolerant control strategy for commensurate Fractional Order time invariant systems is proposed, where only measured system outputs are supposed to be available. The output-feedback Fault Tolerant Control/Control Allocation procedure introduced by Edwards et al. [18] is extended to commensurate Fractional-Order uncertain systems. Both the parametric uncertainty of the system matrix and an extra disturbance term are considered. The policy ensures closed-loop stability throughout the entire closed-loop response of the system even in the presence of actuator reduction in the effectiveness. This is accomplished by incorporating ideas of Fractional Sliding Mode Control, Unknown Input Observers and a fixed Control Allocation method. A convex representation of the problem is created in order to get the controller and observer gains.

Fault tolerant control allocation for fractional-order systems

PETTINARI, SILVIA;CORRADINI, Maria Letizia
2014-01-01

Abstract

In this paper a new fault tolerant control strategy for commensurate Fractional Order time invariant systems is proposed, where only measured system outputs are supposed to be available. The output-feedback Fault Tolerant Control/Control Allocation procedure introduced by Edwards et al. [18] is extended to commensurate Fractional-Order uncertain systems. Both the parametric uncertainty of the system matrix and an extra disturbance term are considered. The policy ensures closed-loop stability throughout the entire closed-loop response of the system even in the presence of actuator reduction in the effectiveness. This is accomplished by incorporating ideas of Fractional Sliding Mode Control, Unknown Input Observers and a fixed Control Allocation method. A convex representation of the problem is created in order to get the controller and observer gains.
2014
9783952426913
273
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11581/337788
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