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Dr. Sami El-Ferik

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Dr. Sami El-Ferik

Dr. Sami El-Ferik

Associate Professor, Systems Engineering Department, King Fahd University of Petroleum

Dr. Sami El Ferik: Associate Professor in Control and Instrumentation, Department of Systems Engineering, at KFUPM. He obtained his B.Sc in Electrical Engineering from Laval University, Quebec, Canada, and M.S and Ph.D both in Electrical and Computer Engineering from Ecole Polytechnique, University of Montreal, Montreal, Canada. His Ph.D. work, on flexible manufacturing systems modeling and control, was co-supervised with Mechanical Engineering. After completion of his Ph.D and Post-doctor positions, he worked with Pratt and Whitney Canada as a Staff Control Analyst at the Research and Development Center of Systems, Controls, and Accessories. His research interests are in sensing, monitoring, and control with strong multidisciplinary research and applications. His research contributions are in control of drug administration, process control and control loop performance monitoring, control of systems with delays, modeling and control of stochastic systems, analysis of network stability, condition monitoring and condition-based maintenance.

Control Valve Stiction Compensation: Online Adaptive Approach

Digitalization

Abstract: Control loop performance monitoring is essential to process industries due to the substantial value that they can add in terms of higher quality, low operational cost and high asset availability. Valve stiction is one of the main problems that the process industry is facing, and is usually handled by performing costly corrective maintenance, which may result in loss of production. In addition, the desire to keep operation running with unavailability of bypass lines/valves forces the operation to continue with a defect valve until the next scheduled maintenance, which may affect product quality and operation cost. This waiting period can take years. A recent study showed that the percentage of defective valves ranges between 3% to 10% with average of 3.6%. Hence, if there is a way to implement an adaptive solution to handle valve stiction while maintaining Safety and Quality until next planned maintenance, then considerable cost and effort can be saved. This paper proposes an advanced online stiction compensation approach to improve the performance of the industrial control loops. To evaluate the performance of the proposed approach, both simulation and experimental investigations have been carried out. Results show the excellent performance of the proposed compensator through a substantial reduction in process variability, valve movements, and energy needed for stiction compensation.

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