Classical Design Methods

Uwe Mackenroth
Additional contact information
Uwe Mackenroth: Fachhochschule Lübeck University of Applied Sciences, FB Maschinenbau und Wirtschaftsingenieurwesen

Chapter Chapter 4 in Robust Control Systems, 2004, pp 63-84 from Springer

Abstract: Abstract In this chapter, it will be shown how the Nyquist stability criterion can be used to synthesize a PID controller so that the feedback system is in a certain sense robustly stable and fulfills also some specified performance requirements. These properties are typically measured by the phase margin and the gain crossover frequency. The method will be most successfully applied if the plant is stable with the possible exception of a pole at the origin, but even in this case it has limitations if the performance requirements become too complex. We show that in such a situation an improvement can be achieved by generalizing the structure of the classical SISO feedback loop. This leads to a cascade of several controllers, to a two degrees-of-freedom control configuration or to feedforward of the disturbance.

Keywords: Controller Design; Nyquist Plot; Step Response; Phase Margin; Phase Plot (search for similar items in EconPapers)
Date: 2004
References: Add references at CitEc
Citations:

There are no downloads for this item, see the EconPapers FAQ for hints about obtaining it.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-662-09775-5_4

Ordering information: This item can be ordered from
http://www.springer.com/9783662097755

DOI: 10.1007/978-3-662-09775-5_4

Access Statistics for this chapter

More chapters in Springer Books from Springer
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().