Event-triggered optimal decentralized control for stochastic interconnected nonlinear systems via adaptive dynamic programming

Zhao, Yanwei; Niu, Ben; Zong, Guangdeng; Xu, Ning; Ahmad, Adil M.

doi:10.1016/j.neucom.2023.03.024

Cited by 53 publications

(14 citation statements)

References 40 publications

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“…23,24 The introduction of an event-triggered control (ETC) strategy has provided a positive solution to the information congestion problem. [25][26][27][28][29][30] The characteristic of ETC is that control signals are only transmitted when a specific event is triggered, thereby avoiding the high-frequency updates of system data. In the works of Zhang et al 31 two types of the ETC consensus strategies, the distributed and centralized, were proposed for linear MASs.…”

Section: Introductionmentioning

confidence: 99%

Active disturbance rejection‐based event‐triggered bipartite consensus control for nonaffine nonlinear multiagent systems

Cao

Niu

Zong

et al. 2023

Intl J Robust & Nonlinear

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This article investigates the active disturbance rejection‐based distributed event‐triggered bipartite consensus problem of nonaffine nonlinear multiagent systems with input saturation. To reduce the update frequency of the control signal, an event‐triggered mechanism is employed for each follower. Additionally, the active disturbance rejection technology, as a combination of the extended state observer and the tracking differentiator, is introduced to estimate the uncertainties of the system and address the problem of explosion of complexity in the backstepping design process. Compared with the traditional distributed bipartite consensus schemes using neural networks/fuzzy logic systems, the design complexity of the control law is reduced in the proposed scheme. Meanwhile, the tracking error is maintained within a predefined range via the funnel function. Finally, the stability of the system is proved under the Lyapunov stability analysis theory, and the effectiveness of the proposed strategy is verified via simulation examples.

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Section: Introductionmentioning

confidence: 99%

Active disturbance rejection‐based event‐triggered bipartite consensus control for nonaffine nonlinear multiagent systems

Cao

Niu

Zong

et al. 2023

Intl J Robust & Nonlinear

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“…Casson model is developed for the calculation of the viscosity term in the main governing equations. For modeling of coiling, sac section is assumed to fill with porous material with specific details associated with size of aneurysm 49 – 55 . Applied porosity for the chosen aneurysms are presented in Table 2 .…”

Section: Methodsmentioning

confidence: 99%

Reduction of rupture risk in ICA aneurysms by endovascular techniques of coiling and stent: numerical study

Rostamian

Fallah

Rostamiyan

2023

Sci Rep

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The initiation, growth, and rupture of cerebral aneurysms are directly associated with Hemodynamic factors. This report tries to disclose effects of endovascular technique (coiling and stenting) on the quantitative intra-aneurysmal hemodynamic and the rupture of cerebral aneurysms. In this paper, Computational Fluid Dynamic are done to investigate and compare blood hemodynamic inside aneurysm under effects of deformation (due to stent) and coiling of aneurysm. The blood stream inside the sac of aneurysm as well as pressure and OSI distribution on the aneurysm wall are compared in nine cases and results of two distinctive cases are compared and reported. Obtained results specifies that the mean WSS is reduced up to 20% via coiling of the aneurysm while the deformation of the aneurysm (applying stent) could reduce the mean WSS up to 71%. In addition, comparison of the blood hemodynamic shows that the blood bifurcation occurs in the dome of aneurysm when endovascular technique for the treatment is not applied. It is found that the bifurcation occurs at ostium section when ICA aneurysm is deformed by the application of stent. The impacts of coiling are mainly limited since the blood flow entrance is not limited in this technique and WSS is not reduced substantial. However, usage of stent deforms the aneurysm angle with the orientation of parent vessel and this reduces blood velocity at entrance of the ostium and consequently, WSS is decreased when deformation of the aneurysm fully occurs. These qualitative procedures provide a preliminary idea for more profound quantitative examination intended for assigning aneurysm risk of upcoming rupture.

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“…Under-actuated systems are a kind of important nonlinear systems in which the independent control variables are less than the system degrees of freedom (Zhao et al, 2023a(Zhao et al, , 2023b(Zhao et al, , 2023c(Zhao et al, , 2023dZhang et al, 2022aZhang et al, , 2022bZhang et al, , 2022c, such systems can be found in many areas, such as four rotors rotorcraft (Zemalache et al, 2005), micro-machined ultrasonic transducers (Darbasi et al, 2022), unmanned aerial vehicles (Ullah et al, 2022), etc. In addition, compared with full-actuated systems (Duan, 2021), under-actuated systems are superior in reducing costs, weight and increasing system flexibility.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical sliding mode-based adaptive fuzzy control for uncertain switched under-actuated nonlinear systems with input saturation and dead-zone

Yue,

Niu,

Wang

et al. 2023

RIA

Self Cite

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Purpose This paper aims to study the issues of adaptive fuzzy control for a category of switched under-actuated systems with input nonlinearities and external disturbances. Design/methodology/approach A control scheme based on sliding mode surface with a hierarchical structure is introduced to enhance the responsiveness and robustness of the studied systems. An equivalent control and switching control rules are co-designed in a hierarchical sliding mode control (HSMC) framework to ensure that the system state reaches a given sliding surface and remains sliding on the surface, finally stabilizing at the equilibrium point. Besides, the input nonlinearities consist of non-symmetric saturation and dead-zone, which are estimated by an unknown bounded function and a known affine function. Findings Based on fuzzy logic systems and the hierarchical sliding mode control method, an adaptive fuzzy control method for uncertain switched under-actuated systems is put forward. Originality/value The “cause and effect” problems often existing in conventional backstepping designs can be prevented. Furthermore, the presented adaptive laws can eliminate the influence of external disturbances and approximation errors. Besides, in contrast to arbitrary switching strategies, the authors consider a switching rule with average dwell time, which resolves control problems that cannot be resolved with arbitrary switching signals and reduces conservatism.

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Event-triggered optimal decentralized control for stochastic interconnected nonlinear systems via adaptive dynamic programming

Cited by 53 publications

References 40 publications

Active disturbance rejection‐based event‐triggered bipartite consensus control for nonaffine nonlinear multiagent systems

Active disturbance rejection‐based event‐triggered bipartite consensus control for nonaffine nonlinear multiagent systems

Reduction of rupture risk in ICA aneurysms by endovascular techniques of coiling and stent: numerical study

Hierarchical sliding mode-based adaptive fuzzy control for uncertain switched under-actuated nonlinear systems with input saturation and dead-zone

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