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A robust fuzzy adaptive law for evolving control systems

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Abstract

In this paper an adaptive law with leakage is presented. This law can be used in the consequent part of Takagi–Sugeno-based control. The approach enables easy implementation in the control systems with evolving antecedent part. This combination results in a high-performance and robust control of nonlinear and slowly varying systems. It is shown in the paper that the proposed adaptive law is a natural way to cope with the parasitic dynamics. The boundedness of estimated parameters, the tracking error and all the signals in the system is guaranteed if the leakage parameter σ′ is large enough. This means that the proposed adaptive law ensures the global stability of the system. A simulation example is given that illustrates the proposed approach.

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Authors and Affiliations

  1. University of Ljubljana, Faculty of Electrical Engineering, Tržaška 25, 1000, Ljubljana, Slovenia

    Sašo Blažič, Igor Škrjanc & Drago Matko

Authors
  1. Sašo Blažič
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  2. Igor Škrjanc
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  3. Drago Matko
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Correspondence to Sašo Blažič.

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Blažič, S., Škrjanc, I. & Matko, D. A robust fuzzy adaptive law for evolving control systems. Evolving Systems 5, 3–10 (2014). https://doi.org/10.1007/s12530-013-9084-7

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  • DOI: https://doi.org/10.1007/s12530-013-9084-7

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