The presence of non-linearities, such as stiction and deadband,
places limits on the performance of control valves. Indeed, in the
process industries, stiction is the most common valve problem, and
over the last decade numerous different techniques for overcoming
it have been proposed.
Detection and Diagnosis of Stiction in Control Loops represents
a comprehensive presentation of these methods, including their
principles, assumptions, strengths and drawbacks. Guidelines and
working procedures are provided for the implementation of each
method and MATLAB(r)-based software can be downloaded from
www.ualberta.ca/ bhuang/stiction-book enabling readers to apply the
methods to their own data. Methods for the limitation of stiction
effects are proposed within the general context of: oscillation
detection in control loops, stiction detection diagnosis;, stiction
quantification and diagnosis of multiple faults.
The state-of-the-art algorithms presented in this book are
demonstrated and compared in industrial case studies of diverse
origin chemicals, building, mining, pulp and paper, mineral and
metal processing. Industry-based engineers will find the book to be
valuable guidance in increasing the performance of their control
loops while academic researchers and graduate students interested
in control performance and fault detection will discover a wealth
of static-friction-related research and useful algorithms."
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