-
作者：Ding, Yanling; Peng, Hui; Qi, Tian; Chen, Jie
作者单位：City University of Hong Kong; Guangdong University of Technology; South China University of Technology
摘要：This article concerns consensus problems of linear time-invariant systems with stochastic noises and deterministic disturbances. We consider first-order dynamic agents interconnected by a directed graph network subject to interagent time delay, and we seek to determine the error performance achievable by the consensus feedback protocol, whereas the performance quantifies the disruption of consensus by noises and disturbances. The H-2 and H-infinity norms of the multiagent system transfer funct...
-
作者：Gonzalez, Andres; Ovalle, Luis; Fridman, Leonid
作者单位：Universidad Nacional Autonoma de Mexico
摘要：Barrier function adaptation for sliding-mode controllers ensures not only that the system trajectories belong to the barrier function width but also the solutions, after a finite time, belong to a smaller positively invariant subset of the barrier function width whose size depends on the upper bound of the perturbations. In this article, the barrier function methodology is extended to a class of signed power-based controllers. It turns out that, whenever the upper bound of the perturbation is ...
-
作者：Liu, Yang; Zuo, Zongyu; Song, Jia; Li, Wenling
作者单位：Beihang University; Beihang University; Beihang University
摘要：In this article, the fixed-time consensus control is addressed for general linear multiagent systems guided by a dynamic leader with control inputs. A new fixed-time consensus protocol is proposed based on the specific coordinate transformation and a distributed observer to estimate the leader's state information, provided that each agent in the group is controllable. It is proved that the consensus can be realized within a finite time, and an upper bound of the convergence time is also given ...
-
作者：Wang, Miaomiao; Tayebi, Abdelhamid
作者单位：Huazhong University of Science & Technology; Lakehead University; Western University (University of Western Ontario)
摘要：This article explores the design of hybrid feedback for a class of affine nonlinear systems with topological constraints that prevent global asymptotic stability. A new hybrid control strategy is introduced, which differs conceptually from the commonly used synergistic hybrid approaches. The key idea involves the construction of a generalized synergistic Lyapunov function whose switching variable can either remain constant or dynamically change between jumps. Based on this new hybrid mechanism...
-
作者：Cao, Lin; Shu, Shaolong; Lin, Feng
作者单位：Tongji University; Wayne State University
摘要：In practice, a supervisor can often not only disable some events, but also enforce the occurrence of some events prior to the occurrence of other events. In this article, we combine these two control mechanisms to synthesize a more powerful supervisor. The control goal is to design an isolation supervisor, which ensures in the closed-loop system, faults are fault isolatable in the sense that after a fault occurs, we can determine which type the fault belongs to by observing the output of the c...
-
作者：Makdesi, Anas; Girard, Antoine; Fribourg, Laurent
作者单位：Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); Centre National de la Recherche Scientifique (CNRS); Universite Paris Saclay
摘要：In this article, we consider the problem of computing from data guaranteed set-valued over-approximations of unknown monotone functions with additive disturbances. We provide a characterization of a simulating map that provably contains all monotone functions that are consistent with the data. This map is also minimal in the sense that any set-valued map containing all consistent monotone functions would also include the map we are proposing. We show that this minimal simulating map is interva...
-
作者：Guralnik, Dan P.; Stiller, Peter F.; Zegers, Federico M.; Dixon, Warren E.
作者单位：State University System of Florida; University of Florida; Texas A&M University System; Texas A&M University College Station; Johns Hopkins University; Johns Hopkins University Applied Physics Laboratory
摘要：A class of closed-form distributed controllers achieving leader-following in a multiagent system (MAS) with distance-limited communications in a compact obstructed environment is developed: given a user-provided navigation field for a single point agent as an input, the desired MAS PnP (Plug-and-Play) controller is obtained through a closed-form expression. In particular, cooperative navigation in an environment of arbitrary complexity is achievable whenever an adequate single-agent navigation...
-
作者：Meijer, Tomas J.; Holicki, Tobias; van den Eijnden, Sebastiaan; Scherer, Carsten W.; Heemels, W. P. M. H. Maurice
作者单位：Eindhoven University of Technology; University of Stuttgart
摘要：The projection lemma (often also referred to as the elimination lemma) is one of the most powerful and useful tools in the context of linear matrix inequalities for system analysis and control. In its traditional formulation, the projection lemma only applies to strict inequalities, however, in many applications, we naturally encounter non-strict inequalities. As such, we present, in this article, a non-strict projection lemma that generalizes both its original strict formulation as well as an...
-
作者：Salehi, Zeinab; Chen, Yijun; Ratnam, Elizabeth L.; Petersen, Ian R.; Shi, Guodong
作者单位：Australian National University; University of Sydney
摘要：In this article, we consider dynamic multiagent systems (MAS) for decentralized resource allocation. The MAS operate at a competitive equilibrium to ensure a balanced supply and demand for available resources. Example resources include energy in a microgrid and carbon permits in a carbon trading system. First, we investigate the MAS over a finite horizon, where the utility functions of agents are parameterized to incorporate individual preferences. We shape individual preferences through a set...
-
作者：Wang, Yutian; Ni, Yuan-Hua; Chen, Zengqiang; Zhang, Ji-Feng
作者单位：Hong Kong Polytechnic University; Nankai University; Chinese Academy of Sciences; Academy of Mathematics & System Sciences, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
摘要：This article aims to build a probabilistic framework for Howard's policy iteration algorithm using the language of forward-backward stochastic differential equations (FBSDEs). As opposed to conventional formulations based on partial differential equations, our FBSDE-based formulation can be easily implemented by optimizing criteria over sample data and is, therefore, less sensitive to the state dimension. In particular, both on-policy and off-policy evaluation methods are discussed by construc...
