Observer-Based Fault Estimation and Accomodation for Dynamic Systems

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.