Open Access
Control loops: performance and diagnostics
Nunzio Bonavita,Jaime Caserza Bovero,Riccardo Martini +2 more
- 01 Jan 2004
TL;DR: In this paper, the authors present an innovative solution for control loop performance assessment and optimization, which is designed to enable process managers to recover profit margins through the systematic monitoring and adjustment of the performance of the basic control system.
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Abstract: Summary The paper aims at presenting an innovative solution for control loop performance assessment and optimization. The software product has been designed to enable process managers to recover profit margins through the systematic monitoring and adjustment of the performance of the basic control system. To achieve this goal, technologies and methods are systematically used that have been developed in research and development laboratories on the basis of the results produced over the past 15 years in the fields of control engineering and information technology.
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Citations
Control System Performance Monitoring
TL;DR: This thesis deals with the complete CPM technology, from controller assessment, over detection and diagnosis of control loop problems, to the improvement of control performance (maintenance, re-design of loop components, automatic controller re-tuning), which provides a contribution towards the development of completely self-contained and automatic methodologies in the field.
16
Operational performance excellence through production optimization in the upstream industry
Nunzio Bonavita,Egil Birkemoe,Olav Slupphaug,Espen Storkaas +3 more
- 01 Jan 2008
TL;DR: In this paper, the authors provide a brief overview of selected technologies and applications aiming at increase production efficiency and throughput by means of an optimized management of the control elements based on real-time process data and model-based predictions.
3
Patent
Method and arrangement for configuring a system for monitoring the performance of a control loop of an industrial plant
Rasmus Nyström,Manfred Rode +1 more
- 18 Nov 2011
TL;DR: In this paper, a method and an arrangement for configuring a system for monitoring the performance of a control loop of an industrial plant are disclosed, which includes the steps of reading in first process data (p1_i, p_i) derived from measurements of at least one sensor inside the control loop during a particular control situation.
1
Quis custodiet ipsos custodes
TL;DR: In this article, the design of automated systems for monitoring the performance of large numbers of MPC controllers is presented, and analytical closed-form probability densities are derived for all variables of interest.
References
Assessment of control loop performance
TL;DR: In this article, an estimate of the best possible control can be obtained by fitting a univariate time series to process data collected under routine control, and the use of this technique is demonstrated with pilot plant and production data.
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Refinery-wide control loop performance assessment
TL;DR: In this paper, the authors discuss the application of control loop performance assessment (CLPA) in a refinery setting and describe procedures for selecting these parameters which make it feasible to implement the algorithm on a refinery-wide scale.
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Derivative filter is an integral part of PID design
Alf J. Isaksson,S.F. Graebe +1 more
- 07 Aug 2002
TL;DR: In this paper, the authors discuss the importance of model-based design methods, treating the derivative filter as an inherent part of the design, and illustrate how default choices for the derivative filters may lead to excessive control actions.
139
An automated performance monitor for process controllers
TL;DR: In this paper, a controller goodness-of-performance monitor for an individual controlled variable (CV) is developed and experimentally tested, using the distribution of a performance index based on the actuating errors (setpoint minus CV).
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Analysis of plant-wide disturbances through data-driven techniques and process understanding
TL;DR: In this paper, data-driven techniques are used to analyze plant-wide disturbances caused by limit cycle oscillation in a control loop and other numerical signatures derived from the data trends are utilized for the diagnosis of the root cause.
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