Fuzzy adaptive finite time control ship fin stabilizing systems model of fuzzy Takagi-Sugeno with unknowns and disturbances
Ali Soltani Sharif Abadi, Pooyan Alinaghi Hosseinabadi · 2018
One of the unavoidable phenomena in practical systems is the existence of unknowns and external disturbances. Various methods have been proposed to eliminate the effect of these uncertainties (unknowns) and disturbances. One of the most widely used methods is the use of adaptive methods. In this article, the control input is designed and simulated by using the Adaptive Finite Time Sliding Mode Control (AFSMC) method for the finite time control of the Ship Fin Stabilizing Systems with a Takagi-Sugeno (TS) fuzzy model in present of various uncertainties and external disturbances. Furthermore, the upper bound of uncertainties and external disturbances is estimated by applying adaptive laws. To eliminate the destructive effect of the Chattering phenomenon, we also use the signum function estimation with the fuzzy membership function. After design and proof with the Lyapunov function method, the proposed designs is simulated by using MATLAB software.