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

Abstract

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.

RETRACTED: Experimental and theoretical investigations of Erbium complex: DNA/BSA interaction, anticancer and antibacterial studies

“…Furthermore, these ligands exhibit a high absorption of UV light and efficiently transmit the energy from the bindings to the metal midpoint through an “antenna impact.” This characteristic enables primary stimulation of the lanthanide ions, which have inherently diminished absorption coefficients. Additionally, the bindings serve to safeguard the lanthanide ions from vibration linkage that could potentially suppress their luminescence ( Khorasani-Motlagh et al, 2013 ; Lei et al, 2022 ; Cao et al, 2023 ; Tang et al, 2023 ).…”

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

“…Lemma 1 (Zhao et al , 2017; Zhao et al , 2023a, 2023b, 2023c, 2023d; Zhao et al , 2023a, 2023b, 2023c, 2023d; Liu et al , 2023; Cao et al , 2023a, 2023b; Xu et al , 2023.) For ∀( y 1 , y 2 ) ∈ R 2 , the following inequality holds: where δ > 0, ℓ 1 > 1, ℓ 2 > 1;( ℓ 1 − 1)( ℓ 2 − 1) = 1.…”

“…As a typical hybrid system, a switched system (Chen et al , 2022; Tang et al , 2022a; Zhao et al , 2022; Cao et al , 2023a, 2023b; Zhang et al , 2022a, 2022b, 2022c; Zhang et al , 2023a, 2023b) Ma et al ., 2021 is composed of some mutually independent subsystems and a switching rule to control which subsystem works. In contrast to non-switched systems (Zhang et al , 2022b, 2023c, 2023d; Li et al ., 2022; Cheng et al , 2023a; Wang et al , 2023; Cheng et al , 2023b; Guo et al , 2023; Li et al , 2022; Tang et al , 2022b; Tang et al , 2023), switched systems can describe more complex actual systems, such as reluctance machines, multi-robot systems and automotive steering systems.…”

“…Lemma 1 (Zhao et al, 2017;Zhao et al, 2023aZhao et al, , 2023bZhao et al, , 2023cZhao et al, , 2023dZhao et al, 2023aZhao et al, , 2023bZhao et al, , 2023cZhao et al, , 2023dLiu et al, 2023;Cao et al, 2023aCao et al, , 2023bXu et al, 2023. ) For V(y 1 , y 2 ) [ R 2 , the following inequality holds:…”

Output feedback control for uncertain fractional-order system subject to deception cyber-attacks via observer-based event-triggered scheme 1

“…Notably, the findings presented above use traditional periodic control techniques, and since the actuator must receive the control signal instantaneously, unnecessary sampling and communication will ensue [15,16]. Contrary to time-triggered control methods, the implementation of control missions in the event-triggered control strategy depends exclusively on the stated triggering condition [17]- [19].…”