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Tytuł pozycji:

A fuzzy fractional-order control of robotic manipulators with PID error manifolds.

Tytuł :
A fuzzy fractional-order control of robotic manipulators with PID error manifolds.
Autorzy :
Muñoz-Vázquez, Aldo Jonathan
Gaxiola, Fernando
Martínez-Reyes, Fernando
Manzo-Martínez, Alain
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Temat :
ROBOTICS
MANIPULATORS (Machinery)
FUZZY logic
MANIFOLDS (Mathematics)
PID controllers
CLOSED loop systems
UNCERTAIN systems
Źródło :
Applied Soft Computing; Oct2019, Vol. 83, pN.PAG-N.PAG, 1p
Czasopismo naukowe
The present paper proposes a model-free implementation and output feedback control for robust tracking of robotic manipulators. By considering the salient advantages of fuzzy logic techniques for the control of uncertain dynamic systems, as well as the intrinsic properties of fractional-order (FO) operators for modelling and control of complex engineering processes, this paper proposes a control scheme that relies on fuzzy logic and FO tools. Firstly, a proportional–integral–derivative (PID) error manifold is synthesised to enhance the tracking capabilities of the closed-loop system. Then, in order to guarantee that the PID extended error evolves close to the origin, the dynamic controller is build upon a Takagi–Sugeno inference system, which is based on the PID extended error and on its FO integral. Finally, the reliability of the proposed method is demonstrated by means of a numerical simulation, and comparisons are carried out in experiments versus trustworthy discontinuous and continuous sliding mode based controllers. • An output feedback model-free control of robotic manipulators. • The controller relies on a PID extended error. • The extended error design allows to consider an inference system of few rules. • The inference system considers the extended error and its fractional-order integral. • Experiments highlight the reliability of the proposed method. [ABSTRACT FROM AUTHOR]
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