Due to the increasing security and reliability demand of actual
industrial process control systems, the study on fault diagnosis and
fault tolerant control of dynamic systems has received considerable
attention. Fault accommodation (FA) is one of effective methods that can
be used to enhance system stability and reliability, so it has been
widely and in-depth investigated and become a hot topic in recent years.
Fault detection is used to monitor whether a fault occurs, which is the
first step in FA. On the basis of fault detection, fault estimation (FE)
is utilized to determine online the magnitude of the fault, which is a
very important step because the additional controller is designed using
the fault estimate. Compared with fault detection, the design
difficulties of FE would increase a lot, so research on FE and
accommodation is very challenging. Although there have been advancements
reported on FE and accommodation for dynamic systems, the common methods
at the present stage have design difficulties, which limit applications
of respective design approaches.
Therefore, the problems of FE and accommodation are needed to be further
studied. This book considers the theory and technology of FE and
accommodation for dynamic systems, and establishes a systemic and
comprehensive framework of FE and accommodation for
continuous/discrete-time systems.