Identification of the stability of feedback systems in the presence of nonlinear distortions

J. Schoukens, R. Pintelon, T. Dobrowiecki

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

5 Citations (Scopus)

Abstract

A criterion to verify experimentally the stability of a nonlinear system, captured in a feedback loop, is proposed. The basic idea is to split the output power in coherent (linearly related to the input) and noncoherent power (the remaining power). A nonlinear power gain, measuring the sensitivity of the noncoherent power to input variations, is introduced. Using the small gain theorem, it is possible to check the local stability of the feedback for the actual class of excitation signals.

Original languageEnglish
Title of host publicationIFAC Proceedings Volumes (IFAC-PapersOnline)
PublisherIFAC Secretariat
Pages139-144
Number of pages6
Volume15
Edition1
Publication statusPublished - 2002
Event15th World Congress of the International Federation of Automatic Control, 2002 - Barcelona, Spain
Duration: Jul 21 2002Jul 26 2002

Other

Other15th World Congress of the International Federation of Automatic Control, 2002
CountrySpain
CityBarcelona
Period7/21/027/26/02

Fingerprint

Nonlinear distortion
Feedback
Nonlinear systems

Keywords

  • Identification
  • Nonlinear distortion
  • Stability tests

ASJC Scopus subject areas

  • Control and Systems Engineering

Cite this

Schoukens, J., Pintelon, R., & Dobrowiecki, T. (2002). Identification of the stability of feedback systems in the presence of nonlinear distortions. In IFAC Proceedings Volumes (IFAC-PapersOnline) (1 ed., Vol. 15, pp. 139-144). IFAC Secretariat.

Identification of the stability of feedback systems in the presence of nonlinear distortions. / Schoukens, J.; Pintelon, R.; Dobrowiecki, T.

IFAC Proceedings Volumes (IFAC-PapersOnline). Vol. 15 1. ed. IFAC Secretariat, 2002. p. 139-144.

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

Schoukens, J, Pintelon, R & Dobrowiecki, T 2002, Identification of the stability of feedback systems in the presence of nonlinear distortions. in IFAC Proceedings Volumes (IFAC-PapersOnline). 1 edn, vol. 15, IFAC Secretariat, pp. 139-144, 15th World Congress of the International Federation of Automatic Control, 2002, Barcelona, Spain, 7/21/02.
Schoukens J, Pintelon R, Dobrowiecki T. Identification of the stability of feedback systems in the presence of nonlinear distortions. In IFAC Proceedings Volumes (IFAC-PapersOnline). 1 ed. Vol. 15. IFAC Secretariat. 2002. p. 139-144
Schoukens, J. ; Pintelon, R. ; Dobrowiecki, T. / Identification of the stability of feedback systems in the presence of nonlinear distortions. IFAC Proceedings Volumes (IFAC-PapersOnline). Vol. 15 1. ed. IFAC Secretariat, 2002. pp. 139-144
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