This article presents a composite fuzzy distributed control law to solve cooperative problem of multiagent systems with nonlinear leader system based on the observer. The contributions this are three-fold. First, small-gain theorem is extended systems, and input-to-output stability (IOS) output-Lagrange (OL-IOS) proposed for systems. Second, OL-IOS multiple loop given. Third, theorem, composed purely observer system. Finally, effectiveness method illustrated by using numerical example...

Based on the framework of distributed optimization algorithms, this brief studies optimal formation behaviors multi-agent systems modeled as a group uncertain Euler-Lagrange with collision avoidance. Assume that each agent can only obtain measured position-based gradient value local objective function. By integrating modified algorithm and an adaptive control law, proposed controllers lead positions agents asymptotically converging to solution total function The design is verified by...

The distributed optimization problem (DOP) of Takagi-Sugeno (T-S) fuzzy cyber-physical systems is studied under the framework weight-balanced graphs and quasistrongly connected characteristics. objective to drive outputs all agents optimal solution a given global function regarded as desired output, based on partial information local functions. To this end, coordinators (DOCs) are used generate solutions functions that converge reference-tracking controllers designed ensure can track...

The problems of impulse controllability and elimination are investigated based on sliding-mode control (SMC) for Takagi–Sugeno (T–S) fuzzy singular systems (FSSs) in this article. Necessary sufficient conditions T–S FSSs to be controllable obtained the rank matrices system equivalent form. relationship between impulses membership functions is given. linear switching function SMC law designed applied FSSs. main contributions approach design an law, which can not only effectively eliminate but...

In this study, the self-triggered distributed formation control problem is considered for a group of fixed-wing unmanned aerial vehicles (UAVs) under unknown wind disturbances subject to velocity and overload constraints. A more general kinematic model UAVs involving position, velocity, yaw angle, pitch roll acceleration, overload, employed. Based on sampled local relative position information, novel scheme with an inner-outer loop structure sampling mechanism are developed. Velocities...

This study addresses the distributed nonconvex optimization problem for nonlinear multi-agent systems over a weight-balanced and quasi-strongly connected graph. The purpose is to steer all agents optimum of given global objective function with inputs outputs on basis actual partial information related input output. Novel momentum-based optimal coordinators are designed achieve this objective, local functions should be analytic replace its convexity. An interconnected system different...

This article presents the input-to-state stability (ISS) and decentralized sliding-mode control of polynomial fuzzy interconnected systems by using small-gain theorem. The contribution this is threefold. First, based on boundedness solution subsystems, sufficient conditions for system are provided. Second, ISS theorem extended to number membership functions being same different, trajectory-based proposed. Third, sliding surface state feedback designed, motion analyzed system. Finally,...

In this study, the state consensus problem is investigated for a class of nonlinear fractional-order multi-agent systems (FOMASs) by using dynamics event-triggered sliding mode control approach. The main objective to steer all agents some bounded position based on their own information and neighbor agent. Different from existing results, both asymptotic Zeno-free behavior are ensured simultaneously. To reach objective, novel approach proposed, composed distributed dynamic schemes,...

The primary objective of this paper is to address the challenge designing finite-time fault-tolerant control mechanisms for nonlinear flexible spacecraft systems, which are particularly vulnerable randomized actuator faults. Diverging from traditional methodologies, our research harnesses capabilities Takagi–Sugeno (T–S) fuzzy framework. A unique feature model representation failures as stochastic signals following a Markov process, thereby offering robust solution addressing timeliness...

Graves' disease is an autoimmune of the thyroid gland mediated by T cells. CD28, a member costimulatory molecules, plays pivotal role in regulating T-cell responses. Plasma-soluble CD28 one form peripheral blood. To investigate concentrations soluble patients with disease, we used sensitive dual monoclonal antibody sandwich enzyme-linked immunosorbent assay (ELISA) to detect CD28. Our results suggested that mean plasma were 1.79 ±1.52 ng/ml, and levels healthy subjects only 0.83 ±1.35 ng/ml....

This paper aims at proposing an observer-based T-S fuzzy singular system. Firstly, we give a general model of nonlinear systems. We use the control method to form system and augmented compact Secondly, design observer for In order prove parameters state estimation errors are globally stable observer, construct Lyapunov function with form. Then sufficient condition that is exponentially controller gains. Finally, two numerical examples simulation results demonstrate effectiveness...

In this paper, we analyse the robust stability and control problem of singular biological economic systems with uncertain items based on sliding mode control. Firstly, establish a parameters for invasion alien species. We get T-S fu zzy by using set fuzzy rules nonautonomous systems. Then, design integral surface controller. prove that state trajectories can arrive in finite time, also provide sufficient conditions motion is globally asymptotically stable. Lastly, give practical example to...

Abstract This paper studies the distributed pulse‐width‐modulation (PWM) control problem for double‐integrator multi‐agent systems with switching topologies. Usually, a PWM signal updates only on discrete‐time sample instants and takes three constant values. means that methods based linear continuous designs are not directly applicable. The major contribution of this is new class controllers, which feature nested saturated loops, proposed. With design, outputs controlled agents...

In this paper, the Singular-Polynomial-Fuzzy-Model (SPFM) approach problem and impulse elimination are investigated based on sliding mode control for a class of nonlinear singular system (NSS) with impulses. Considering two numerical examples, SPFM is calculated compound function type simple type. According to solvability steps method solving form (and without) extended more general case. By using Heine–Borel finite covering theorem, it proven that systems bounded impulse-free item (BIFI)...

<abstract><p>This paper explored the topic of extended dissipativity analysis for Markovian jump neural networks (MJNNs) that were influenced by time-varying delays. A distinctive Lyapunov functional, distinguished a non-zero delay-product types, was presented. This achieved combining Wirtinger-based double integral inequality with flexible matrix set. novel methodology addressed limitations slack matrices found in earlier research. As result, fresh condition MJNNs formulated,...