Event-Triggered Adaptive Output Regulation for a Class of Nonlinear Systems With Unknown Control Direction

Lei, Yan; Wang, Yan‐Wu; Guan, Zhi‐Hong; Shen, Yanjun

doi:10.1109/tsmc.2018.2852700

Cited by 27 publications

(27 citation statements)

References 29 publications

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“…Simulations are then carried out to validate the proposed schemes. Two interesting topics for future research are (1) extending the method to more general switched systems and (2) extending the method to multiagent systems with unknown control direction …”

Section: Discussionmentioning

confidence: 99%

“…Such a method has proved itself a very useful tool to reducing the utilizing of communication resources. Based on this idea, fruitful results have been obtained and particularly nonlinear plants . For instance, by making use of the input‐to‐state stable small‐gain methods, a partial state and output feedback approach for uncertain nonlinear system was presented in the work of Liu and Jiang .…”

Section: Introductionmentioning

confidence: 99%

“…Postoyan et al considered the case of enlarging the inter‐event times by making use of hybrid systems tools. Recently, some effective ETC scheme were well developed for interconnected nonlinear systems and multiagent systems with unknown control directions . The simultaneous design of an adaptive control law and an event‐triggering condition can be found in other works …”

Section: Introductionmentioning

confidence: 99%

“…Based on this idea, fruitful results have been obtained and particularly nonlinear plants. [18][19][20][21][22][23] For instance, by making use of the input-to-state stable small-gain methods, a partial state and output feedback approach for uncertain nonlinear system was presented in the work of Liu and Jiang. 18 Subsequently, Heemels et al 19 considered the case of balancing the required communication resource and the desired performance by making use of the periodic event-triggered communication scheme.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, some effective ETC scheme were well developed for interconnected nonlinear systems 21 and multiagent systems with unknown control directions. 22,23 The simultaneous design of an adaptive control law and an event-triggering condition can be found in other works. [24][25][26][27][28] It should be noted that though FTC and ETC are two theoretically important and practically relevant research directions in modern control theory, most of existing research results have treated them separately.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Event‐triggered control design for nonlinear systems with actuator failures and uncertain disturbances

Tong

2019

Intl J Robust & Nonlinear

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Summary Traditional adaptive event‐triggered design methods compensated for the event‐triggered error are not direct, and the stability analysis of resulting close‐loop systems is rather complicated. To alleviate the above restrictions, we propose a direct and simple event‐triggered co‐design method to solve the tracking control problem for parameter strict‐feedback systems with actuator faults and uncertain disturbances. By introducing a compensating terms in a smooth function form of a conventional control law and certain positive integrable functions, the effects of actuator faults and event‐triggered error can be compensated completely. Such a direct design method has the following features: (i) a direct compensation of the event‐triggered error is achieved without introducing any extra design parameters; (ii) it is not necessary to know any bound information on the parameters of event‐triggered threshold, and global asymptotic tracking control of the overall closed‐loop system is achieved; and (iii) the resulting stability criteria of the proposed event‐triggered control design are much simpler and easier to fulfill by virtue of the introduced co‐design method. Simulations are then carried out to validate the proposed schemes.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Event‐triggered control design for nonlinear systems with actuator failures and uncertain disturbances

Tong

2019

Intl J Robust & Nonlinear

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Adaptive finite‐time control for output regulation of nonlinear systems with completely unknown control directions

Jia

LuJunwei

LiYongmin

2021

Adaptive Control & Signal

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This article studies the finite‐time output regulation problem for nonlinear strict‐feedback systems with completely unknown control directions and unknown functions. First, according to the necessary conditions for the solvability of the output regulation problem, the output regulation problem of nonlinear strict‐feedback systems and the external system is transformed into a stabilization problem of nonlinear systems. Second, an internal model with external signals is designed. Third, based on finite time, fuzzy control, output feedback control, and Nussbaum gain functions, the control law is designed so that all signals of the closed‐loop system are the semi‐global practically finite‐time stable (SGPFS), and the tracking error converges to a small neighborhood of the origin in a finite‐time. Finally, the proposed algorithm is applied to the finite‐time tracking problem of Chua's oscillator system.

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Command filter‐based adaptive neural event‐triggered control of MIMO pure‐feedback systems with full‐state time‐varying constraints

Zhu

Huang

Ding

et al. 2022

Adaptive Control & Signal

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Summary This article is concerned with the issue of adaptive event‐triggered control for a class of pure‐feedback multi‐input multi‐output (MIMO) nonlinear systems with full‐state time‐varying constraints. By using the hyperbolic tangent as nonlinear mapping technique, the uncertain constrained MIMO non‐affine system is changed into a novel unconstrained MIMO system. Dynamic surface control (DSC) strategy is used to solve the issue of “explosion of complexity.” Command filter is adopted to overcome the insufficient of the DSC method by the error compensation mechanism. Adaptive event‐triggered control scheme is developed for the transformed non‐affine system based on relative threshold mechanism. Radial basis function neural networks are utilized to approximate the unknown nonlinear functions. All the signals in the controlled system are proved to be semi‐globally uniformly ultimately bounded by adding to compensation signals into the whole Lyapunov function. Two simulation examples demonstrate the capability of the proposed control strategy.

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Event-Triggered Adaptive Output Regulation for a Class of Nonlinear Systems With Unknown Control Direction

Cited by 27 publications

References 29 publications

Event‐triggered control design for nonlinear systems with actuator failures and uncertain disturbances

Event‐triggered control design for nonlinear systems with actuator failures and uncertain disturbances

Adaptive finite‐time control for output regulation of nonlinear systems with completely unknown control directions

Command filter‐based adaptive neural event‐triggered control of MIMO pure‐feedback systems with full‐state time‐varying constraints

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