Control Of Multi Agent Dynamical Systems In The Presence Of Constraints
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Synchronization of Multi-Agent Systems in the Presence of Disturbances and Delays
This monograph explores the synchronization of large-scale, multi-agent dynamical systems in the presence of disturbances, delays, and time-varying networks. Drawing upon their extensive work in this area, the authors provide a thorough treatment of agents with higher-order dynamics, different classes of models for agents, and the underlying networks representing the agents’ actions. The high technical level of their presentation and their rigorous mathematical approach make this a timely and valuable resource that will fill a gap in the existing literature. Divided into two sections, the first part of the book focuses on state synchronization of homogeneous multi-agent systems. The authors consider state synchronization by determining control strategies for both continuous- and discrete-time systems that achieve state synchronization under both full- and partial-state coupling. The chapters that follow examine multi-agent systems with both linear and nonlinear time-varying agents, input-delays for continuous- and discrete-time systems, and communication delays for continuous-time systems. The second part of the book is dedicated to regulated output synchronization of heterogeneous multi-agent systems with linear and nonlinear agents. Both sections of the book include performance considerations in H2- and H-infinity norms in the presence of external disturbances. Research on synchronization of multi-agent systems has been growing in popularity and is highly interdisciplinary, with applications to automobile systems, aerospace systems, multiple-satellite GPS and high-resolution satellite imagery, aircraft formations, highway traffic platooning, industrial process control with multiple processes, and more. Synchronization of Multi-Agent Systems in the Presence of Disturbances and Delays will therefore be of interest to upper-level graduate students, researchers, and engineers in industry working on interconnected dynamical systems.
Mixed-Integer Representations in Control Design
In this book, the authors propose efficient characterizations of the non-convex regions that appear in many control problems, such as those involving collision/obstacle avoidance and, in a broader sense, in the description of feasible sets for optimization-based control design involving contradictory objectives. The text deals with a large class of systems that require the solution of appropriate optimization problems over a feasible region, which is neither convex nor compact. The proposed approach uses the combinatorial notion of hyperplane arrangement, partitioning the space by a finite collection of hyperplanes, to describe non-convex regions efficiently. Mixed-integer programming techniques are then applied to propose acceptable formulations of the overall problem. Multiple constructions may arise from the same initial problem, and their complexity under various parameters - space dimension, number of binary variables, etc. - is also discussed. This book is a useful tool for academic researchers and graduate students interested in non-convex systems working in control engineering area, mobile robotics and/or optimal planning and decision-making.
Control of Multi-Agent Dynamical Systems in the Presence of Constraints
L'objectif de cette thèse est de proposer des solutions aux problèmes liés à la commande optimale de systèmes dynamiques multi-agents en présence de contraintes. Des éléments de la théorie de commande et d'optimisation sont appliqués à différents problèmes impliquant des formations de systèmes multi-agents. La thèse examine le cas d'agents soumis à des contraintes dynamiques. Pour faire face à ces problèmes, les concepts bien établis tels que la théorie des ensembles, la platitude différentielle, la commande prédictive (Model Predictive Control - MPC), la programmation mixte en nombres entiers (Mixed-Integer Programming - MIP) sont adaptés et améliorés. En utilisant ces notions théoriques, ce travail de thèse a porté sur les propriétés géométriques de la formation d'un groupe multi-agents et propose un cadre de synthèse original qui exploite cette structure. En particulier, le problème de conception de formation et les conditions d'évitement des collisions sont formulés comme des problèmes géométriques et d'optimisation pour lesquels il existe des procédures de résolution. En outre, des progrès considérables dans ce sens ont été obtenus en utilisant de façon efficace les techniques MIP (dans le but d'en déduire une description efficace des propriétés de non convexité et de non connexion d'une région de faisabilité résultant d'une collision de type multi-agents avec des contraintes d'évitement d'obstacles) et des propriétés de stabilité (afin d'analyser l'unicité et l'existence de configurations de formation de systèmes multi-agents). Enfin, certains résultats théoriques obtenus ont été appliqués dans un cas pratique très intéressant. On utilise une nouvelle combinaison de la commande prédictive et de platitude différentielle (pour la génération de référence) dans la commande et la navigation de véhicules aériens sans pilote (UAVs).