Time-varying sliding-coefficient-based decoupled terminal sliding-mode control for a class of fourth-order systems |
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Authors: | Husnu Bayramoglu Hasan Komurcugil |
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Affiliation: | Computer Engineering Department, Eastern Mediterranean University, Gazi Magusa, North Cyprus, via Mersin 10, Turkey |
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Abstract: | A time-varying sliding-coefficient-based decoupled terminal sliding mode control strategy is presented for a class of fourth-order systems. First, the fourth-order system is decoupled into two second-order subsystems. The sliding surface of each subsystem was designed by utilizing time-varying coefficients. Then, the control target of one subsystem to another subsystem was embedded. Thereafter, a terminal sliding mode control method was utilized to make both subsystems converge to their equilibrium points in finite time. The simulation results on the inverted pendulum system demonstrate that the proposed method exhibits a considerable improvement in terms of a faster dynamic response and lower IAE and ITAE values as compared with the existing decoupled control methods. |
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Keywords: | Sliding-mode control Decoupled sliding-mode control Terminal sliding-mode control Finite time convergence |
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