Page 7 - Practical Control Engineering a Guide for Engineers, Managers, and Practitioners

Contents

Preface xvii
1 Qualitative Concepts in Control Engineering
and Process Analysis . . . . . . . . . • • . . . . . . . . . . . . . . . 1
1-1 What Is a Feedback Controller . . . . . . . . . . . 1
1-2 What Is a Feedforward Controller . . . . . . . . 3
1-3 Process Disturbances . . . . . . . . . . . . . . . . . . . 5
1-4 Comparing Feedforward and Feedback
Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-5 Combining Feedforward and Feedback
Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1-6 Why Is Feedback Control Difficult to
Carry Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1-7 An Example of Controlling a Noisy
Industrial Process . . . . . . . . . . . . . . . . . . . . . . . 10
1-8 What Is a Control Engineer . . . . . . . . . . . . . . 15
1-9 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2 Introduction to Developing Control Algorithms • 17
2-1 Approaches to Developing Control
Algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2-1-1 Style, Massive Intelligence, Luck,
and Heroism (SMILH) . . . . . . . . . . . . 17
2-1-2 A Priori First Principles . . . . . . . . . . . 18
2-1-3 A Common Sense, Pedestrian
Approach . . . . . . . . . . . . . . . . . . . . . . . 19
2-2 Dealing with the Existing Process . . . . . . . . 19
2-2-1 What Is the Problem . . . . . . . . . . . . . . 20
2-2-2 The Diamond Road Map . . . . . . . . . . 20
2-3 Dealing with Control Algorithms Bundled
with the Process . . . . . . . . . . . . . . . . . . . . . . . 27
2-4 Some General Comments about Debugging
Control Algorithms . . . . . . . . . . . . . . . . . . . . . 29
2-6 Documentation and Indispensability . . . . . . 35
2-7 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3 Basic Concepts in Process Analysis . . . . • . . . . . . . . 37
3-1 The First-Order Process-an Introduction 37
3-2 Mathematical Descriptions of the
First-Order Process . . . . . . . . . . . . . . . . . . . . . 39

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