Tuning of Industrial Control Systems

Description

Suitable for beginners, this book takes a practical, but systematic approach to tuning. The aim is to provide insight into tuning procedures rather than a series of formulas to be memorized. The author gives helpful rules of thumb to speed the learning process during field training. The text begins with a discussion of common techniques for measuring the dynamic response of a process and choosing appropriate performance criteria. Later chapters cover selection and tuning of feedback control modes, including computer- and microprocessor-based controllers, and advanced modes. This Second Edition includes numerous examples of tuning, including the effect of hysteresis in flow control loops, averaging and tight level control, cascade control of a jacketed chemical reactor, feedforward control of a heater, and loop interaction and ratio control in a blender. Also included, is an introduction to a model reference control and a chemical reactor control example to illustrate it. Content: Front Matter • Table of Contents Unit 1. Introduction and Overview Unit 2. Feedback Controllers Unit 3. Open-Loop Characterization of Process Dynamics Unit 4. How to Tune Feedback Controllers Unit 5. Mode Selection and Tuning Common Feedback Loops Unit 6. Computer Feedback Control Unit 7. Tuning Cascade Control Systems Unit 8. Feedforward and Ratio Control Unit 9. Multivariable Control Systems Unit 10. Adaptive and Self-Tuning Control Appendices Index