Techniques of Model-Based Control

Chapter 8. Tuning and Synthesis of 2DF IMC for Uncertain Processes

Objectives of the Chapter

• Present and motivate 2DF IMC tuning algorithms for stable uncertain processes with large or oscillatory disturbance lags.

• Present and motivate 2DF IMC tuning algorithms for unstable uncertain processes.

• Explore the effect of uncertainty on 2DF IMC controller design and model selection.

Prerequisite Reading

Chapter 4, “Two-Degree of Freedom Internal Model Control”

Chapter 7, “Tuning and Synthesis of 1DF IMC Controllers for Uncertain Processes”

Appendix A, “Review of Basic Concepts”

Appendix B, “Frequency Response Analysis”

Introduction

Tuning a 2DF IMC system proceeds in two steps. First, the feedback loop in Figure 8.1 is tuned for good disturbance suppression by ...