An Algebraic Fuzzy Pole Placement Approach to Stabilize Nonlinear Mechanical Systems

Jesus Alberto Meda-Campana, Roman A. Rodriguez-Manzanarez, S. Denisse Ontiveros-Paredes, Jose de Jesus Rubio, Ricardo Tapia-Herrera, Tonatiuh Hernandez-Cortes, Guillermo Obregon-Pulido, Carlos Aguilar-Ibanez

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Based on the general structure of mechanical systems described by their state-space representation, the Takagi-Sugeno fuzzy modeling, and the controllability property of fuzzy systems, an algebraic and practical approach to computing the fuzzy gain capable of ensuring the stability property of the Takagi-Sugeno fuzzy model is proposed in this article. The main idea consists of finding a continuous fuzzy gain such that any linear behavior, defined by the adequate selection of eigenvalues, is induced in the closed-loop fuzzy system. Therefore, by continuity, if the fuzzy model is an approximation sufficiently close to the mechanical system, then such a nonlinear system is also stabilized by the fuzzy controller. A notable advantage of the proposed method, when compared with similar approaches, is the simplicity of the resulting gain. The validity of the approach is illustrated through the numerical simulation of a sufficiently complex nonlinear system.

Original languageEnglish
Pages (from-to)3322-3332
Number of pages11
JournalIEEE Transactions on Fuzzy Systems
Volume30
Issue number8
DOIs
StatePublished - 1 Aug 2022

Keywords

  • Fuzzy controllability
  • Takagia-Sugeno (Ta-S) fuzzy modeling
  • fuzzy pole placement
  • mechanical systems
  • state-space representation

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