Design of nonlinear lag-lead compensators by extended linearization using symbolic computation techniques

Jesús Rodríguez-Millán, José Yépez, Bokor Jozsef

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In this paper we report the development of NLLag-Lead, a symbolic computation tool allowing to automate the design of linear and nonlinear lead, lag and lag-lead compensators, for nth order single-input single-output nonlinear dynamical control systems. The proposed nonlinear lag-lead compensators are straightforward structural nonlinear extensions of appropriate state variables representations of the linear laglead compensators, which for nonlinear extension purposes are represented as a cascade of an input PD like controller followed by an output first order linear dynamical system. This two-blocks decomposition transforms the design of a nonlinear extension of a lag-lead compensator into the design of a nonlinear PD controller and a nonlinear state-feedback controller. NLLag- Lead has been computationally implemented using Mathematica® as symbolic computational platform.

Original languageEnglish
Title of host publicationComputer Aided Systems Theory - EUROCAST 1997 - A Selection of Papers from the 6th International Workshop on Computer Aided Systems Theory, Proceedings
EditorsFranz Pichler, Roberto Moreno-Diaz
PublisherSpringer Verlag
Pages218-234
Number of pages17
ISBN (Print)3540638113, 9783540638117
DOIs
Publication statusPublished - Jan 1 1997
Event6th International Workshop on Computer Aided Systems Theory, EUROCAST 1997 - Las Palmas de Gran Canaria, Spain
Duration: Feb 24 1997Feb 28 1997

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume1333
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other6th International Workshop on Computer Aided Systems Theory, EUROCAST 1997
CountrySpain
CityLas Palmas de Gran Canaria
Period2/24/972/28/97

Keywords

  • Jacobian and extended linearization
  • Lag-lead compensators
  • Mathematica®
  • Symbolic computation

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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    Rodríguez-Millán, J., Yépez, J., & Jozsef, B. (1997). Design of nonlinear lag-lead compensators by extended linearization using symbolic computation techniques. In F. Pichler, & R. Moreno-Diaz (Eds.), Computer Aided Systems Theory - EUROCAST 1997 - A Selection of Papers from the 6th International Workshop on Computer Aided Systems Theory, Proceedings (pp. 218-234). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 1333). Springer Verlag. https://doi.org/10.1007/BFb0025046