Abstract
Fuzzy Lyapunov synthesis is extended to the design of type-1 and type-2 fuzzy logic controllers for nonsmooth mechanical systems. The output regulation problem for a servomechanism with nonlinear backlash is proposed as a case of study. The problem at hand is to design a feedback controller to obtain the closed-loop system in which all trajectories are bounded, and the load of the driver is regulated to a desired position while also attenuating the influence of external disturbances. The servomotor position is the only measurement available for feedback; the proposed extension is far from trivial because of the nonminimum phase properties of the system. Performance issues of the type-1 and type-2 fuzzy logic regulators that were designed are illustrated by experimental studies.
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Castillo, O., Aguilar, L.T. (2019). Fuzzy Control for Systems with Dead-Zone and Backlash. In: Type-2 Fuzzy Logic in Control of Nonsmooth Systems. Studies in Fuzziness and Soft Computing, vol 373. Springer, Cham. https://doi.org/10.1007/978-3-030-03134-3_4
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DOI: https://doi.org/10.1007/978-3-030-03134-3_4
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