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 ofeach 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 general context 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 inindustrial case studies of diverse origin – chemicals, building, mining, pulpand 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: 978-1-84882-774-5
• Editorial: Springer
• Encuadernacion: Cartoné
• Páginas: 389
• Fecha Publicación: 01/10/2009
• Nº Volúmenes: 1
• Idioma: Inglés