Detection and diagnosis of stiction in control loops: state of the art and advanced methods

In the process industries, stiction is the most common performance-limiting valve problem and over the last decade numerous different techniques for overcoming it have been proposed.This book 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-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 generalcontext of: oscillation detection in control loops, stiction detection, diagnosis and 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. INDICE: Introduction.- Part I: Stiction Modelling and Oscillation Detection.- Stiction Modelling.- An Alternative Stiction Modelling Approach and Comparison of Different Stiction Models.- Detection of Oscillating Control Loops.- Part II: Advances in Stiction Detection and Quantification.- Shape-based Stiction Detection.- Stiction Detection Based on Cross-correlation and Signal Shape.- Curve Fitting for Detecting Valve Stiction.- A Relay-based Technique for Detection of Stiction.- Shape-based Stiction Detection Using Area Calculations.- Estimation of Valve Stiction Using Separable Least-squares and Global Search Algorithms.- Stiction Estimation Using Constrained Optimisation and Contour Map.- Oscillation Root-cause Detection and Quantification Under Multiple Faults.-Comparative Study of Valve Stiction Detection Methods.- Conclusions and Future Research Challenges.- Appendices. .

• ISBN: 978-1-4471-2542-6
• Editorial: Springer
• Encuadernacion: Rústica
• Fecha Publicación: 04/05/2012
• Nº Volúmenes: 1
• Idioma: Inglés