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Hasan Komurcugil - One of the best experts on this subject based on the ideXlab platform.
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Time-varying sliding-coefficient-based decoupled terminal sliding-mode control for a class of fourth-order systems
ISA Transactions, 2014Co-Authors: Husnu Bayramoglu, Hasan Komurcugil, Siddhartha Mallik, D. K. RoyAbstract: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. © 2014 ISA.
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Nonsingular decoupled terminal sliding-mode control for a class of fourth-order nonlinear systems
Communications in Nonlinear Science and Numerical Simulation, 2013Co-Authors: Husnu Bayramoglu, Hasan KomurcugilAbstract:This paper presents a nonsingular decoupled terminal sliding mode control (NDTSMC) method for a class of fourth-order nonlinear systems. First, the nonlinear fourth-order system is decoupled into two second-order Subsystems which are referred to as the primary and secondary Subsystems. The sliding surface of each subsystem was designed by utilizing time-varying coefficients which are computed by linear functions derived from the input-output mapping of the one-dimensional fuzzy rule base. Then, the control target of the secondary subsystem was embedded to the primary subsystem by the help of an intermediate signal. Thereafter, a nonsingular terminal sliding mode control (NTSMC) method was utilized to make both Subsystems converge to their equilibrium points in finite time. The simulation results on the inverted pendulum system are given to show the effectiveness of the proposed method. It is seen 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. © 2012 Elsevier B.V.
Husnu Bayramoglu - One of the best experts on this subject based on the ideXlab platform.
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Time-varying sliding-coefficient-based decoupled terminal sliding-mode control for a class of fourth-order systems
ISA Transactions, 2014Co-Authors: Husnu Bayramoglu, Hasan Komurcugil, Siddhartha Mallik, D. K. RoyAbstract: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. © 2014 ISA.
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Nonsingular decoupled terminal sliding-mode control for a class of fourth-order nonlinear systems
Communications in Nonlinear Science and Numerical Simulation, 2013Co-Authors: Husnu Bayramoglu, Hasan KomurcugilAbstract:This paper presents a nonsingular decoupled terminal sliding mode control (NDTSMC) method for a class of fourth-order nonlinear systems. First, the nonlinear fourth-order system is decoupled into two second-order Subsystems which are referred to as the primary and secondary Subsystems. The sliding surface of each subsystem was designed by utilizing time-varying coefficients which are computed by linear functions derived from the input-output mapping of the one-dimensional fuzzy rule base. Then, the control target of the secondary subsystem was embedded to the primary subsystem by the help of an intermediate signal. Thereafter, a nonsingular terminal sliding mode control (NTSMC) method was utilized to make both Subsystems converge to their equilibrium points in finite time. The simulation results on the inverted pendulum system are given to show the effectiveness of the proposed method. It is seen 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. © 2012 Elsevier B.V.
D. K. Roy - One of the best experts on this subject based on the ideXlab platform.
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Time-varying sliding-coefficient-based decoupled terminal sliding-mode control for a class of fourth-order systems
ISA Transactions, 2014Co-Authors: Husnu Bayramoglu, Hasan Komurcugil, Siddhartha Mallik, D. K. RoyAbstract: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. © 2014 ISA.
Shihua Li - One of the best experts on this subject based on the ideXlab platform.
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finite time stability of switched nonlinear systems with finite time unstable Subsystems
Journal of The Franklin Institute-engineering and Applied Mathematics, 2015Co-Authors: Xueling Li, Shihua LiAbstract:Abstract Up to now, the precondition that each subsystem should be finite-time stable or finite-time bounded is potentially assumed in most existing results for finite-time stability and finite-time boundedness of switched systems. If one subsystem of switched systems is not finite-time stable or finite-time bounded, the previous results may not work. In this paper, based on Lyapunov-like functions, finite-time stability and finite-time boundedness problems of switched nonlinear systems with Subsystems that are not finite-time stable or finite-time bounded are discussed. Sufficient conditions are given under which switched nonlinear systems with Subsystems that are finite-time unstable or finite-time unbounded are guaranteed to be still finite-time stable or finite-time bounded by virtue of Lyapunov-like functions respectively. The results also show the effect of switching signals and the total dwell time of finite-time unstable or finite-time unbounded Subsystems on finite-time stability and finite-time boundedness of switched nonlinear systems. Numerical examples are employed to verify the efficiency of the proposed method.
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Finite-time stability of switched linear systems with Subsystems which are not finite-time stable
Proceedings of the 32nd Chinese Control Conference, 2013Co-Authors: Xueling Li, Shihua LiAbstract:Up to now, the potential assumption of most existing results for finite-time stability of switched linear systems is that each subsystem should be finite-time stable. If one subsystem of the switched systems is not finite-time stable, the previous results may fail. In this paper, finite-time stability of switched linear systems with Subsystems that are not finite-time stable is discussed. Sufficient conditions are given under which switched linear systems with Subsystems that are not finite-time stable are guaranteed to be finite-time stable. The results also show the effect of the switching signals on finite-time stability of switched linear systems. An numerical example is employed to verify the efficiency of the proposed method.
Xueling Li - One of the best experts on this subject based on the ideXlab platform.
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finite time stability of switched nonlinear systems with finite time unstable Subsystems
Journal of The Franklin Institute-engineering and Applied Mathematics, 2015Co-Authors: Xueling Li, Shihua LiAbstract:Abstract Up to now, the precondition that each subsystem should be finite-time stable or finite-time bounded is potentially assumed in most existing results for finite-time stability and finite-time boundedness of switched systems. If one subsystem of switched systems is not finite-time stable or finite-time bounded, the previous results may not work. In this paper, based on Lyapunov-like functions, finite-time stability and finite-time boundedness problems of switched nonlinear systems with Subsystems that are not finite-time stable or finite-time bounded are discussed. Sufficient conditions are given under which switched nonlinear systems with Subsystems that are finite-time unstable or finite-time unbounded are guaranteed to be still finite-time stable or finite-time bounded by virtue of Lyapunov-like functions respectively. The results also show the effect of switching signals and the total dwell time of finite-time unstable or finite-time unbounded Subsystems on finite-time stability and finite-time boundedness of switched nonlinear systems. Numerical examples are employed to verify the efficiency of the proposed method.
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Finite-time stability of switched linear systems with Subsystems which are not finite-time stable
Proceedings of the 32nd Chinese Control Conference, 2013Co-Authors: Xueling Li, Shihua LiAbstract:Up to now, the potential assumption of most existing results for finite-time stability of switched linear systems is that each subsystem should be finite-time stable. If one subsystem of the switched systems is not finite-time stable, the previous results may fail. In this paper, finite-time stability of switched linear systems with Subsystems that are not finite-time stable is discussed. Sufficient conditions are given under which switched linear systems with Subsystems that are not finite-time stable are guaranteed to be finite-time stable. The results also show the effect of the switching signals on finite-time stability of switched linear systems. An numerical example is employed to verify the efficiency of the proposed method.
