Control system design and technology continues to develop in many different
directions. One theme that the Advances in Industrial Control series
is following is the application of nonlinear control design methods, and the
series has some interesting new commissions in progress. However, another
theme of interest is how to endow the industrial controller with the ability
to overcome faults and process degradation. Fault detection and isolation is
a broad field with a research literature spanning several decades. This topic
deals with three questions:
• How is the presence of a fault detected?
• What is the cause of the fault?
• Where is it located?