MRAC + H∞ Fault Tolerant Control for Linear Parameter Varying systems

Two different schemes for Fault Tolerant Control (FTC) based on Adaptive Control, Robust Control and Linear Parameter Varying (LPV) systems are proposed. These schemes include a Model Reference Adaptive Controller for an LPV system (MRAC-LPV) and a Model Reference Adaptive Controller with a H ∞ Gain...

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Bibliographic Details
Main Authors: Vargas-Martinez, Adriana, Puig, Vicenc, Garza-Castanon, Luis E., Morales-Menendez, Ruben
Format: Conference Proceeding
Language:English
Subjects:
Actuators
Adaptation model
Adaptive systems
Approximation methods
Fault tolerance
Fault tolerant systems
Robustness
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Summary:Two different schemes for Fault Tolerant Control (FTC) based on Adaptive Control, Robust Control and Linear Parameter Varying (LPV) systems are proposed. These schemes include a Model Reference Adaptive Controller for an LPV system (MRAC-LPV) and a Model Reference Adaptive Controller with a H ∞ Gain Scheduling Controller for an LPV system (MRAC-H ∞ GS-LPV). In order to compare the performance of these schemes, a Coupled-Tank system was used as testbed in which two different types of faults (abrupt and gradual) with different magnitudes and different operating points were simulated. Results showed that the use of a Robust Controller in combination with an Adaptive Controller for an LPV system improves the FTC schemes because this controller was Fault Tolerant against sensor fault and had an accommodation threshold for actuator fault magnitudes from 0 to 6.
ISSN:2162-1195
DOI:10.1109/SYSTOL.2010.5676069