Time-varying sliding-coefficient-based decoupled terminal sliding-mode control for a class of fourth-order systems

被引:18
|
作者
Bayramoglu, Husnu [1 ]
Komurcugil, Hasan [1 ]
机构
[1] Eastern Mediterranean Univ, Dept Comp Engn, Gazi Magusa, North Cyprus, Turkey
关键词
Sliding-mode control; Decoupled sliding-mode control; Terminal sliding-mode control; Finite time convergence; INPUT FUZZY-LOGIC; NONLINEAR-SYSTEMS; DESIGN;
D O I
10.1016/j.isatra.2014.05.013
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
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. (c) 2014 ISA. Published by Elsevier Ltd. All rights reserved.
引用
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页码:1044 / 1053
页数:10
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