Fault-Tolerant Time-Invariant Feedback Control

Authors:	Sala Antonio, Universidad Politecnica de Valencia, Spain Albertos Pedro, Universidad Politecnica de Valencia, Spain
Topic:	6.4 Safeprocess
Session:	Fault Diagnosis and Fault Tolerant Control: Theory
Keywords:	integrity, fault-tolerant control, state feedback, output feedback, LMI, BMI

Abstract

This paper discusses the problem of guaranteeing both a nominalperformance and a degraded second-class control performance underactuators and/or sensors faults. LMI, BMI and other possiblesolutions are investigated in a time invariant feedback controlframework. Also, the switching-on and shutting-down sequence ofsensors and actuators in centralised control strategies may becritical to ensure continuous stability of the controlled plant.The advantage of measuring the actual input to the plant is alsodiscussed. A bank angle control example illustrates the procedure.