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The key attribute of a Fault Tolerant Control (FTC) system is its
ability to maintain overall system stability and acceptable
performance in the face of faults and failures within the feedback
system. In this book Integral Sliding Mode (ISM) Control Allocation
(CA) schemes for FTC are described, which have the potential to
maintain close to nominal fault-free performance (for the entire
system response), in the face of actuator faults and even complete
failures of certain actuators. Broadly an ISM controller based
around a model of the plant with the aim of creating a nonlinear
fault tolerant feedback controller whose closed-loop performance is
established during the design process. The second approach involves
retro-fitting an ISM scheme to an existing feedback controller to
introduce fault tolerance. This may be advantageous from an
industrial perspective, because fault tolerance can be introduced
without changing the existing control loops. A high fidelity
benchmark model of a large transport aircraft is used to
demonstrate the efficacy of the FTC schemes. In particular a scheme
based on an LPV representation has been implemented and tested on a
motion flight simulator.
The key attribute of a Fault Tolerant Control (FTC) system is its
ability to maintain overall system stability and acceptable
performance in the face of faults and failures within the feedback
system. In this book Integral Sliding Mode (ISM) Control Allocation
(CA) schemes for FTC are described, which have the potential to
maintain close to nominal fault-free performance (for the entire
system response), in the face of actuator faults and even complete
failures of certain actuators. Broadly an ISM controller based
around a model of the plant with the aim of creating a nonlinear
fault tolerant feedback controller whose closed-loop performance is
established during the design process. The second approach involves
retro-fitting an ISM scheme to an existing feedback controller to
introduce fault tolerance. This may be advantageous from an
industrial perspective, because fault tolerance can be introduced
without changing the existing control loops. A high fidelity
benchmark model of a large transport aircraft is used to
demonstrate the efficacy of the FTC schemes. In particular a scheme
based on an LPV representation has been implemented and tested on a
motion flight simulator.
Fault Detection and Fault-tolerant Control Using Sliding Modes is
the first text dedicated to showing the latest developments in the
use of sliding-mode concepts for fault detection and isolation
(FDI) and fault-tolerant control in dynamical engineering systems.
It begins with an introduction to the basic concepts of sliding
modes to provide a background to the field. This is followed by
chapters that describe the use and design of sliding-mode observers
for FDI using robust fault reconstruction. The development of a
class of sliding-mode observers is described from first principles
through to the latest schemes that circumvent minimum-phase and
relative-degree conditions. Recent developments have shown that the
field of fault tolerant control is a natural application of the
well-known robustness properties of sliding-mode control. A family
of sliding-mode control designs incorporating control allocation,
which can deal with actuator failures directly by exploiting
redundancy, is presented. Various realistic case studies,
specifically highlighting aircraft systems and including results
from the implementation of these designs on a motion flight
simulator, are described. A reference and guide for researchers in
fault detection and fault-tolerant control, this book will also be
of interest to graduate students working with nonlinear systems and
with sliding modes in particular. Advances in Industrial Control
aims to report and encourage the transfer of technology in control
engineering. The rapid development of control technology has an
impact on all areas of the control discipline. The series offers an
opportunity for researchers to present an extended exposition of
new work in all aspects of industrial control.
Fault Detection and Fault-tolerant Control Using Sliding Modes is
the first text dedicated to showing the latest developments in the
use of sliding-mode concepts for fault detection and isolation
(FDI) and fault-tolerant control in dynamical engineering systems.
It begins with an introduction to the basic concepts of sliding
modes to provide a background to the field. This is followed by
chapters that describe the use and design of sliding-mode observers
for FDI using robust fault reconstruction. The development of a
class of sliding-mode observers is described from first principles
through to the latest schemes that circumvent minimum-phase and
relative-degree conditions. Recent developments have shown that the
field of fault tolerant control is a natural application of the
well-known robustness properties of sliding-mode control. A family
of sliding-mode control designs incorporating control allocation,
which can deal with actuator failures directly by exploiting
redundancy, is presented. Various realistic case studies,
specifically highlighting aircraft systems and including results
from the implementation of these designs on a motion flight
simulator, are described. A reference and guide for researchers in
fault detection and fault-tolerant control, this book will also be
of interest to graduate students working with nonlinear systems and
with sliding modes in particular. Advances in Industrial Control
aims to report and encourage the transfer of technology in control
engineering. The rapid development of control technology has an
impact on all areas of the control discipline. The series offers an
opportunity for researchers to present an extended exposition of
new work in all aspects of industrial control.
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