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The series Advances in Industrial Control aims to report and
encourage technology transfer in control engineering. The rapid
development of control technology has an impact on all areas of the
control discipline. New theory, new controllers, actuators,
sensors, new industrial processes, computer methods, new
applications, new philosophies. . . , new challenges. Much of this
development work resides in industrial reports, feasibility study
papers and the reports of advanced collaborative projects. The
series offers an opportunity for researchers to present an extended
exposition of such new work in all aspects of industrial control
for widerand rapid dissemination. Benchmarking is a technique first
applied by Rank Xerox in the late 1970s for business processes. As
a subject in the commercial arena, benchmarking thrives with, for
example, a European Benchmarking Forum. It has taken rather longer
for benchmarking to make the transfer to the technical domain and
even now the subject is making a slow headway. Akey research step
in this direction was taken by Harris (1989) who used minimum
variance control as a benchmark for controller loop assessment.
This contribution opened up the area and a significant specialist
literature has now developed. Significant support for the
methodologywas given by Honeywell who have controller assessment
routines in their process control applications software; therefore,
it is timely to welcome a (first) monograph on controller
performance assessment by Biao Huang and Sirish Shah to the
Advances in Industrial Control series.
were published in the series as the contributed volume, Process
Control Performance Assessment: From Theory to Implementation with
Andrzej Ordys, Damian Uduehi, and Michael Johnson as Editors (ISBN
978-1-84628-623-0, 2007). Along with this good progress in process
controller assessment methods, researchers have also been
investigating techniques to diagnose what is causing the process or
control loop degradation. This requires the use of on-line data to
identify faults via new diagnostic indicators of typical process
problems. A significant focus of some of this research has been the
issue of valve problems; a research direction that has been
motivated by some industrial statistics that show up to 40% of
control loops having performance degradation attributable to valve
problems. Shoukat Choudhury, Sirish Shah, and Nina Thornhill have
been very active in this research field for a number of years and
have written a coherent and consistent presentation of their many
research results as this monograph, Diagnosis of Process
Nonlinearities and Valve Stiction. The Advances in Industrial
Control series is pleased to welcome this new and substantial
contribution to the process diagnostic literature. The reader will
find the exploitation of the extensive process data archives
created by today's process computer systems one theme in the
monograph. From another viewpoint, the use of higher-order
statistics could be considered to provide a continuing link to the
earlier methods of the statistical process control paradigm.
The series Advances in Industrial Control aims to report and
encourage technology transfer in control engineering. The rapid
development of control technology has an impact on all areas of the
control discipline. New theory, new controllers, actuators,
sensors, new industrial processes, computer methods, new
applications, new philosophies. . . , new challenges. Much of this
development work resides in industrial reports, feasibility study
papers and the reports of advanced collaborative projects. The
series offers an opportunity for researchers to present an extended
exposition of such new work in all aspects of industrial control
for widerand rapid dissemination. Benchmarking is a technique first
applied by Rank Xerox in the late 1970s for business processes. As
a subject in the commercial arena, benchmarking thrives with, for
example, a European Benchmarking Forum. It has taken rather longer
for benchmarking to make the transfer to the technical domain and
even now the subject is making a slow headway. Akey research step
in this direction was taken by Harris (1989) who used minimum
variance control as a benchmark for controller loop assessment.
This contribution opened up the area and a significant specialist
literature has now developed. Significant support for the
methodologywas given by Honeywell who have controller assessment
routines in their process control applications software; therefore,
it is timely to welcome a (first) monograph on controller
performance assessment by Biao Huang and Sirish Shah to the
Advances in Industrial Control series.
were published in the series as the contributed volume, Process
Control Performance Assessment: From Theory to Implementation with
Andrzej Ordys, Damian Uduehi, and Michael Johnson as Editors (ISBN
978-1-84628-623-0, 2007). Along with this good progress in process
controller assessment methods, researchers have also been
investigating techniques to diagnose what is causing the process or
control loop degradation. This requires the use of on-line data to
identify faults via new diagnostic indicators of typical process
problems. A significant focus of some of this research has been the
issue of valve problems; a research direction that has been
motivated by some industrial statistics that show up to 40% of
control loops having performance degradation attributable to valve
problems. Shoukat Choudhury, Sirish Shah, and Nina Thornhill have
been very active in this research field for a number of years and
have written a coherent and consistent presentation of their many
research results as this monograph, Diagnosis of Process
Nonlinearities and Valve Stiction. The Advances in Industrial
Control series is pleased to welcome this new and substantial
contribution to the process diagnostic literature. The reader will
find the exploitation of the extensive process data archives
created by today's process computer systems one theme in the
monograph. From another viewpoint, the use of higher-order
statistics could be considered to provide a continuing link to the
earlier methods of the statistical process control paradigm.
The objective of this workshop was to bring together engineers from
industry and scientists from universities to focus attention on new
developments and practical enhancements for using adaptive control
in industry. The workshop provided a forum for a tutorial
introduction to the state-of-the-art in adaptive control and helped
focus attention on an in-depth view of the problems and needs of
adaptive control engineers in industry. The volume includes papers
concerned with recent theoretical advances in adaptive control,
experimental application of adaptive control in industry and the
role of filters in adaptive control.
This brief reviews concepts of inter-relationship in modern
industrial processes, biological and social systems. Specifically
ideas of connectivity and causality within and between elements of
a complex system are treated; these ideas are of great importance
in analysing and influencing mechanisms, structural properties and
their dynamic behaviour, especially for fault diagnosis and hazard
analysis. Fault detection and isolation for industrial processes
being concerned with root causes and fault propagation, the brief
shows that, process connectivity and causality information can be
captured in two ways: * from process knowledge: structural modeling
based on first-principles structural models can be merged with
adjacency/reachability matrices or topology models obtained from
process flow-sheets described in standard formats; and * from
process data: cross-correlation analysis, Granger causality and its
extensions, frequency domain methods, information-theoretical
methods, and Bayesian networks can be used to identify pair-wise
relationships and network topology. These methods rely on the
notion of information fusion whereby process operating data is
combined with qualitative process knowledge, to give a holistic
picture of the system.
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