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Paper details
Number 1 - March 2015
Volume 25 - 2015
A fault tolerant direct control allocation scheme with integral sliding modes
Mirza Tariq Hamayun, Christopher Edwards, Halim Alwi, Abdulrahman Bajodah
Abstract
In this paper, integral sliding mode control ideas are combined with direct control allocation in order to create a fault
tolerant control scheme. Traditional integral sliding mode control can directly handle actuator faults; however, it cannot do
so with actuator failures. Therefore, a mechanism needs to be adopted to distribute the control effort amongst the remaining
functioning actuators in cases of faults or failures, so that an acceptable level of closed-loop performance can be retained.
This paper considers the possibility of introducing fault tolerance even if fault or failure information is not provided to the
control strategy. To demonstrate the efficacy of the proposed scheme, a high fidelity nonlinear model of a large civil aircraft
is considered in the simulations in the presence of wind, gusts and sensor noise.
Keywords
fault tolerant control, integral sliding mode control, linear matrix inequalities