Combining System Identification and Robust Control

Abstract

So far we have mainly considered robust control and system identification independently. This reflects the traditional segregation of the two fields within the automatic control community. In this part of the book we will suggest various schemes which combines the results from robust control presented in Part I with the results from system identification presented in Part II. The presentation will fall naturally into three parts. Section 13.1 summarizes the presented results on estimation of frequency domain model error bounds. Section 13.2 discusses how frequency domain uncertainty ellipses may be represented in a robust control framework and finally Section 13.3 addresses the question of posing an identification based robust control design strategy; the main “message” in this book. In the next chapter we will provide an example to illustrate the proposed design philosophy.