Greg’s Articles on Valve Dynamics

Greg's Articles

• “Improve Process Loops,” Chemical Processing, October, 2007,
• “Model-Predictive Control Can Solve Valve Problem,” Control, November, 2005
• “What is Your Control Valve Telling You,” Control Design, May 2004.
• “Has Your Valve Responded Lately,” Control, June, 2003.
• “Improve Control Valve Response”, Chemical Engineering Progress, June 1995

Greg’s Chapters on Valve Dynamics

• Chapter 3, “Measurements and Valves,” Good Tuning: A Pocket Guide, 2nd ed., ISA, 2005
• Chapter 6, “Control Valves – A Moving Story,” Advanced pH Measurement and Control, 3rd ed., ISA, 2004
• Chapter 2, “Setting the Foundation,” Advanced Control Unleashed, ISA, 2003
• Chapter 4, “Valve Position—The Missing Link,” How to Become an Instrument Engineer - Part 1.523, ISA, 1995
• Chapter 7, “The Effect of Valve Dynamics,” Tuning and Control Loop Performance, 3rd ed., ISA, 1994

Greg’s Symposium Papers on Valve Dynamics

• “Problems and Solutions for Control Valve Dynamics,” Texas A&M Instrumentation Symposium, January, 1995.
• “A Performance Comparison Between a Smith Predictor and a PID Control for Control Valve Hysteresis and Process Non-Self-Regulation”, ACC, San Francisco, June, 1983.
• Greg’s www.modelingandcontrol.com Entries on Valve Dynamics
• “Getting Rid of Dead Time—Beam Me Up Scotty,” Control Techniques Category.
• “Deadly Deadband,” Plant Design Category.
• “Missing in Action,” Tuning and Control Performance Category.
• “Location, Location, Location, Part 2,” Plant Design Category.
• “Dead Time’s Secret Identity, Part 2,” Tuning and Control System Performance Category.
• “Biggest Opportunities for Process Control Improvement, Basic Control,” Tuning and Control System Performance Category.
• “Biggest Opportunities for Process Control Improvement—Position Readback,” Tuning and Control System Performance Category.
• Control Talk discussions of valve dynamics, Tuning rule bonanza and Control Valve Simulation