Observer-Based Fault Estimation and Accomodation for Dynamic Systems

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Due to the increasing security and reliability demand of actual industrial processcontrol systems, the study on fault diagnosis and fault tolerant control of dynamicsystems has received considerable attention. Fault accommodation (FA) is one ofeffective methods that can be used to enhance system stability and reliability, so ithas 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 inFA. On the basis of fault detection, fault estimation (FE) is utilized to determineonline the magnitude of the fault, which is a very important step because the additionalcontroller is designed using the fault estimate. Compared with fault detection, the design difficulties of FE would increase a lot, so research on FE and accommodationis very challenging. Although there have been advancements reported on FEand accommodation for dynamic systems, the common methods at the present stagehave 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 fordynamic systems, and establishes a systemic and comprehensive framework of FEand accommodation for continuous/discrete-time systems.