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Basic and Advanced Regulatory Control: System Design and Application 3rd Revised edition [Pehme köide]

  • Formaat: Paperback / softback, 277 pages, kõrgus x laius: 229x152 mm
  • Ilmumisaeg: 30-Jun-2017
  • Kirjastus: ISA
  • ISBN-10: 0876640137
  • ISBN-13: 9780876640135
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  • Formaat: Paperback / softback, 277 pages, kõrgus x laius: 229x152 mm
  • Ilmumisaeg: 30-Jun-2017
  • Kirjastus: ISA
  • ISBN-10: 0876640137
  • ISBN-13: 9780876640135
This intermediate-level book explains the application of basic and advanced regulatory control strategies for the wet process industries. Rather than mathematical systems theory, the book builds upon the engineer or technician's own experience and knowledge of processes to demonstrate the application of successful control strategies.

Following a summarization of the characteristics of processes and feedback control loops, attention is given to the application of advanced regulatory control (ARC) strategies to provide significant economic benefit. The latter portion of the book gives an overview of the next level of control, advanced process control (APC). New topics include an expanded coverage of set-point weighting controllers, an amplified discussion of valve problems, a control algorithm for dead-time processes, expanded coverage of cross-limiting control systems, and a new heuristic procedure for improving "as-found" tuning. End of chapter exercises have been added. Suitable for the beginning or experienced engineer or technician.
About the Author xiii
Preface to the Third Edition xv
Chapter 1 Introduction 1(6)
Symbols
4(1)
Exercises
5(2)
Chapter 2 Mathematical Background, Diagrams, and Terminology 7(32)
Mathematical Foundation
8(14)
Functions of a Variable
8(1)
Derivatives
8(2)
Integrals
10(2)
Differential Equations
12(3)
Transfer Functions
15(6)
Frequency Response
21(1)
Diagrams and Terminology
22(9)
Direct- or Reverse-Acting Controllers
31(2)
Exercises
33(4)
References
37(2)
Chapter 3 Process and Control Loop Characteristics 39(44)
Steady-State Characteristics
40(6)
Control Valves
46(6)
Valve Stem Stiction and Stick-Slip
50(2)
Process Dynamic Characteristics
52(15)
Types of Dynamic Response
56(11)
Control Loop Characteristics
67(9)
Flow Control Loops
68(2)
Temperature Control Loops
70(2)
Pressure Control Loops
72(3)
Liquid-Level Control Loops
75(1)
Summary
76(1)
Exercises
77(4)
References
81(2)
Chapter 4 PID Control 83(28)
Feedback Control
83(2)
Modes of Control
85(21)
Proportional Mode
86(10)
Integral Mode
96(5)
Derivative Mode
101(5)
Conclusion
106(2)
Exercises
108(2)
References
110(1)
Chapter 5 Modifications to Standard PID Control 111(50)
Set-Point "Softening"
112(4)
Derivative Mode on Measurement
112(2)
Proportional Mode on Measurement
114(2)
Set-Point Ramping
116(1)
Two-Degree-of-Freedom (Set-Point Weighting) Controller
116(5)
Linear Combination of Inputs to Modes
117(4)
Integral-Only Mode
121(1)
Interactive or Noninteractive Controller
122(4)
Independent Gains
126(1)
Internal Filter
127(3)
Nonlinearization
130(2)
Set-Point Tracking and Bumpless Transfer
132(4)
Bumpless Tuning
135(1)
Preventing Reset Windup
136(5)
External Reset Feedback
137(1)
Batch Switch
138(3)
Discrete Control Algorithms
141(7)
Incorporating Engineering Units into Controller Gain
148(1)
Process Control Using Foundation™ Fieldbus
149(8)
Process Control Using FF Function Blocks
152(2)
FF Function Block Subclasses
154(1)
FF Basic Control Strategy
154(3)
Exercises
157(2)
References
159(2)
Chapter 6 Tuning Feedback Control Loops 161(98)
Performance Criteria
163(6)
Tuning for Self-Regulating Processes
169(49)
Trial-and-Error Tuning
169(8)
Tuning from Open-Loop Test Data
177(11)
Tuning from Closed-Loop Test Data
188(4)
Improving As-Found Tuning Parameters
192(26)
Tuning for Integrating Processes
218(32)
Liquid Level Control-Ideal Model
219(12)
Real-World Considerations
231(6)
Modified Tables for Tuning Parameters
237(8)
Other Approaches to Liquid-Level Controller Tuning
245(3)
Other Integrating Processes
248(2)
Typical Tuning Values for Particular Types of Loops
250(1)
Practical Considerations for Loop Tuning
250(3)
Exercises
253(4)
References
257(2)
Chapter 7 Self-Tuning 259(10)
Scheduled Tuning
260(2)
On-Demand Tuning
262(2)
Adaptive Tuning
264(2)
Tuning Aids
265(1)
Exercises
266(1)
References
267(2)
Chapter 8 Advanced Regulatory Control 269(6)
Exercises
273(2)
Chapter 9 Cascade Control 275(20)
Cascade Control Technology
275(5)
Identifying Candidate Applications
280(4)
Implementation, Operation, and Tuning
284(4)
Implementation
284(1)
Operation
285(3)
Commissioning and Tuning
288(1)
Cascade Control Using Foundation Fieldbus
288(3)
Exercises
291(2)
References
293(2)
Chapter 10 Ratio Control 295(16)
Ratio Control Technology
295(4)
Automatic Ratio Adjustment
299(9)
Scaling the Ratio Control Components
303(2)
Ratio Control Using Foundation Fieldbus Function Blocks
305(3)
Exercises
308(2)
References
310(1)
Chapter 11 Feedforward Control 311(42)
Designing Feedforward Control Systems
315(12)
Additive Feedback
318(3)
Multiplicative Feedback
321(4)
Feedback Adjustment of the Feedforward Controller's Reference Value
325(2)
Compensation for Process Dynamics
327(6)
Determining A(s) and B(s)
329(4)
Fine-Tuning the Feedforward Controller
333(7)
Further Considerations of the Feedback Controller
340(9)
Feedforward: In Perspective
342(4)
Feedforward Control Using Foundation Fieldbus
346(3)
Exercises
349(3)
References
352(1)
Chapter 12 Override (Selector) Control 353(30)
Override Control
353(10)
Real-World Applications of Override (Selector) Control
363(5)
Transition from Start-Up to Normal Operations
363(1)
Operating Near the Limit of a Process Utility
363(1)
Prevention of "Tower Flooding" in a Distillation Tower
364(2)
Pipeline Industry, Compressor Control
366(2)
Other Methods of Implementation
368(8)
"Pass-Through" Method
368(4)
Forced Manual for the Nonselected Controller
372(1)
Velocity (Incremental) Mode Control Algorithms
372(2)
Pseudo-Velocity Method
374(1)
Selection Based on Error
375(1)
Override Control Using Foundation Fieldbus
376(2)
Exercises
378(3)
References
381(2)
Chapter 13 Control for Interacting Process Loops 383(36)
Variable Pairing
384(12)
Decoupling
396(13)
Forward Decoupling
398(4)
Inverted Decoupling
402(6)
Partial Decoupling
408(1)
Decoupling Application Examples
409(6)
Petroleum Refinery Heater
409(2)
Spray Water Temperature and Flow Control
411(4)
Exercises
415(2)
References
417(2)
Chapter 14 Dead-Time Compensation and Model-Based Control 419(30)
Smith Predictor Control
421(2)
Algorithm Synthesis
423(5)
Internal Model Control
428(6)
Nonlinear, Model-Based Control
434(1)
PMBC
435(11)
Provisions for Dead Time
441(5)
Exercises
446(1)
References
447(2)
Chapter 15 Multivariable Model Predictive Control 449(30)
Real-World Problems
449(2)
History
451(1)
Unconstrained MPC for SISO Processes
452(9)
Process Model Identification
453(3)
Prediction
456(2)
Calculating Control Moves
458(3)
Incorporating Feedback
461(4)
Tuning
462(3)
Summary Diagram
465(1)
Unconstrained MPC for MIMO Processes
465(4)
Constrained MPC
469(2)
Variations in MPC Vendor Offerings
471(2)
MPC in Perspective
473(2)
Exercises
475(1)
References
476(3)
Chapter 16 Other Control Techniques 479(28)
Split-Range Control
479(3)
Cross-Limiting Control
482(7)
Configuration Details
485(2)
Provisions for Changes in Required Fuel-to-Air Ratio
487(2)
Floating Control
489(7)
Floating Pressure Control for Distillation Columns
490(2)
Floating Pressure Control for Steam Systems
492(2)
Hot or Chilled Water Supply Systems
494(1)
Cooling Tower Systems
494(2)
Increasing Valve Rangeability
496(5)
Small and Large Valves Operating in Parallel
496(2)
Small and Large Valves Operating in Sequence
498(3)
Time Proportioning Control
501(2)
Exercises
503(3)
References
506(1)
Appendix A Derivation of Equations for Installed Valve Characteristics 507(8)
Appendix B Signal Scaling 515(8)
Appendix C Exercise Answers 523(30)
Bibliography 553(6)
Index 559