Advanced Process Control

Dr. Cecil Smith has over 35 years experience in process control, and his expertise encompasses virtually every control technology being applied in industrial production facilities. His primary focus is on designing a control strategy for a process and then commissioning the controls, that is, the process aspects as opposed to systems aspects.? However, he is proficient with both DCS's, PLC's, PC-based controls, and single-loop microprocessor-based controls, and is capable of resolving both process and system problems.Dr. Smith has equally extensive experience in teaching continuing education courses for practicing engineers on various aspects of process control and instrumentation.

• Preface ix1 Introduction 11.1. Implementing Control Logic 21.2. Control Blocks for Process Control 121.3. PID Controller 161.4. Integrator or Totalizer 231.5. Lead-Lag Element 261.6. Dead Time 291.7. Selector Block 341.8. Cutoff Block 351.9. Hand Station 362 Cascade Control 382.1. Jacketed Reactor 382.2. Block Diagrams 432.3. Problem Element 452.4. Cooling Media Disturbances 492.5. Effect of Varying Heat Transfer Rate 512.6. Cascade Control Modes 552.7. Remote Set Point 582.8. Output Tracking 602.9. Control Modes 622.10. Interacting Stages 642.11. Tuning Cascades 692.12. Windup in Cascade Controls 742.13. Integral Tracking 782.14. External Reset 812.15. Inhibit Increase Inhibit Decrease 833 Split-Range Control 863.1. Storage Tank Pressure Control 873.2. Split Range 953.3. Temperature Control Using Liquid Bypass 1033.4. Recirculating Jacket with Heat and Cool Modes 1134 Override Control 1264.1. Limit on the Cooling Water Return Temperature 1264.2. Example without Windup Protection 1314.3. Integral Tracking 1374.4. External Reset 1434.5. Inhibit Increase Inhibit Decrease 1494.6. Limits on Heat Transfer 1564.7. Other Examples 1685 Valve Position Control 1795.1. Polymer Pumping Example 1805.2. Terminal Reheat Systems 1855.3. Equilibrium Reaction 1885.4. Reactor with a Once-Through Jacket 1926 Ratio and Feedforward Control 1986.1. Simple Ratios 2006.2. Ratio Control in Digital Systems 2066.3. Feedback Trim 2106.4. Dynamic Compensation 2206.5. Ratio Plus Bias 2346.6. Characterization Function 2386.7. Cross-Limiting 2476.8. Directional Lags 2606.9. Feedforward Control 2626.10. Feedforward Control Example 2677 Loop Interaction 2777.1. Multivariable Processes 2787.2. Issues with the P&I Diagram 2837.3. Steady-State Sensitivities or Gains 2927.4. Quantitative Measures of Interaction 3087.5. Loop Pairing 3177.6. Starch Pumping System 3197.7. Reducing the Degree of Interaction 3318 Multivariable Control 3458.1. Decoupler 3478.2. Dead-Time Compensation 3788.3. Model Predictive Control 394Index 447

"This book fills the gap between basic control configurations (Practical Process Control) and model predictive control (MPC). For those loops whose performance has a direct impact on plant economics or product quality, going beyond simple feedback or cascade can improve control performance, or specifically, reduce the variance about the target." (Live-PR, 8 December 2010) "This book fills the gap between basic control configurations (Practical Process Control) and model predictive control (MPC). For those loops whose performance has a direct impact on plant economics or product quality, going beyond simple feedback or cascade can improve control performance, or specifically, reduce the variance about the target." (Yahoo! Finance US, 8 December 2010)