Two-Degree-of-freedom Control Design with Adaptive Predictive Control and Adaptive Feedback Control for Continuous-Time MIMO Systems

This paper deals with the adaptive feedback control for the nonholonomic systems with strongly nonlinear uncertainties. The state-input scaling technique and back-stepping approach are used to design the output feedback controller. In order to make the state scaling effective, a new switching control strategy based on the output measurement of the first subsystem is employed.

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Adaptive Feedback Control for Synchronization of Chaotic Neural Systems with Parameter Mismatches

Complexity ◽

10.1155/2018/5431987 ◽

2018 ◽

Vol 2018 ◽

pp. 1-8 ◽

Cited By ~ 5

Author(s):

Qian Ye ◽

Zhengxian Jiang ◽

Tiane Chen

Keyword(s):

Feedback Control ◽

Invariance Principle ◽

Neural Systems ◽

Adaptive Feedback ◽

Adaptive Feedback Control ◽

Synchronization Problem ◽

Feedback Method

This work pertains to the study of the synchronization problem of a class of coupled chaotic neural systems with parameter mismatches. By means of an invariance principle, a rigorous adaptive feedback method is explored for synchronization of a class of coupled chaotic delayed neural systems in the presence of parameter mismatches. Finally, the performance is illustrated with simulations in a two-order neural systems.

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Feedback control for two-degree-of-freedom vibration system with fractional-order derivative damping

Journal of Low Frequency Noise Vibration and Active Control ◽

10.1177/1461348417725958 ◽

2017 ◽

Vol 37 (3) ◽

pp. 554-564

Author(s):

Canchang Liu ◽

Chicheng Ma ◽

Jilei Zhou ◽

Lu Liu ◽

Shuchang Yue ◽

...

Keyword(s):

Feedback Control ◽

Nonlinear Vibration ◽

Fractional Order ◽

Suspension System ◽

Degree Of Freedom ◽

Vehicle Suspension ◽

Vibration System ◽

Fractional Order Derivative ◽

Vehicle Suspension System ◽

Two Degree Of Freedom

A two-degree-of-freedom nonlinear vibration system of a quarter vehicle suspension system is studied by using the feedback control method considered the fractional-order derivative damping. The nonlinear dynamic model of two-degree-of-freedom vehicle suspension system is built and linear velocity and displacement controllers are used to control the nonlinear vibration of the vehicle suspension system. A case of the 1:1 internal resonance is considered. The amplitude–frequency response is obtained with the multiscale method. The asymptotic stability conditions of the nonlinear system can be gotten by using the Routh–Hurwitz criterion and the ranges of control parameters are gained in the condition of stable solutions to the system. The simulation results show that the feedback control can effectively reduce the amplitude of primary resonance, weaken or even eliminate the nonlinear vibration characteristics of the suspension system. Fractional orders have an impact on control performance, which should be considered in the control problem. The study will provide a theoretical basis and reference for the optimal design of the vehicle suspension system.

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