Article
Automation & Control Systems
Aysegul Kivilcim, Ozkan Karabacak, Rafael Wisniewski
Summary: Recent research has shown that almost global stability of nonlinear switched systems can be characterized using multiple Lyapunov densities. By discussing mode-dependent and edge-dependent average dwell times, the stability of the system is ensured.
NONLINEAR ANALYSIS-HYBRID SYSTEMS
(2021)
Article
Automation & Control Systems
Qiang Yu, Guisheng Zhai
Summary: A novel concept of L phi DADT is proposed in this paper along with new conditions for stability and stabilization of switched systems. These conditions can be easily calculated through simple linear matrix inequalities.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2021)
Article
Automation & Control Systems
Shiyao Pan, Yuanfu Shao
Summary: This article discusses the exponential stability of totally positive switched linear systems (TPSLSs) for continuous-time and discrete-time cases. By employing the multiple piecewise-continuous linear copositive Lyapunov function (MPLCLF) and mode-dependent average dwell time (MDADT) methods, the article firstly considers TPSLSs containing both stable and unstable subsystems and proposes two kinds of switching strategies, which greatly reduce the conservativeness and provide more relaxed constraints on parameters compared with previous results. Two examples are given to illustrate the effectiveness of the results.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2022)
Article
Automation & Control Systems
Qiang Yu, Xiaoyan Yuan
Summary: By developing two novel switching schemes - the slow and fast weighted average dwell time, the stability problem for positive switched systems with subsystems stable or partially unstable is investigated. It can be seen that the new schemes cover both the average dwell time and mode-dependent average dwell time schemes under some mild conditions, and stability results based on our proposed approach have lower bound and are more flexible than the existing results. Three numerical examples comparing the relevant results are analyzed to illustrate the efficiency of the new findings.
Article
Automation & Control Systems
Xiaoqing Xiao, Lei Zhou
Summary: This paper investigates the IOSS for continuous-time switched nonlinear systems containing both IOSS and non-IOSS constituent subsystems under mode-dependent average dwell time switching signal. New sufficient IOSS conditions are established to extend the existing results to a more general mode-dependent situation. A numerical example is provided to illustrate the effectiveness of the theoretical results.
INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS
(2021)
Article
Automation & Control Systems
Qiang Yu, Guisheng Zhai
Summary: This paper introduces the concepts of Weighted Average Dwell Time (WADT) and Fast Weighted Average Dwell Time (FWADT) for continuous-time switched systems, and investigates their stability under a class of ergodic switching signals. The relationship between different ADT schemes and the WADT scheme is discussed, showing that classic schemes are included in the new one under certain conditions. The proposed switching law based on the (F)WADT scheme is more flexible and has a larger feasible region, and numerical examples are included to illustrate the validity and superiority of the developed techniques.
INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE
(2021)
Article
Automation & Control Systems
Yunting Wang, Rongqiang Tang, Housheng Su, Yaping Sun, Xinsong Yang
Summary: This article investigates the stabilization issue of switched discrete-time positive systems with delay using asynchronous control, and introduces a new method based on transition probability and mode-dependent average dwell time switching. It designs a mode-dependent controller to stabilize SDPS with unstable subsystems, showing the advantages of the new results through numerical simulations.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2022)
Article
Automation & Control Systems
Jie Wu, Rongni Yang, Jian Sun, Yanzheng Zhu
Summary: This paper investigates the event-triggered finite-time stabilization problem of nonlinear switched affine systems under mode-dependent and state-dependent switching signals, respectively. An event-triggered control strategy with mode-dependent average dwell time constraint and an event-triggered impulsive control strategy with autonomous state-dependent switching are proposed. The effectiveness of the proposed strategies is illustrated through the FTS of a boost converter.
CONTROL ENGINEERING PRACTICE
(2023)
Article
Automation & Control Systems
Shuo Li, Mingzhe Cui, Choon Ki Ahn, Zhengrong Xiang, Imran Ghous
Summary: This article presents a positivity analysis and exponential stabilization design for singular switched positive systems (SSPSs) with actuator saturation under a mode-dependent minimum dwell time (MDMDT) constraint. The author proposes a necessary and sufficient positivity criterion for SSPSs using the singular value decomposition approach, and provides an exponential stability condition for the closed-loop SSPSs via the mode-dependent state-feedback control using a novel discretized linear copositive Lyapunov function technique. Furthermore, the author proposes an effective mode-dependent design scheme for a saturation controller in the solvable linear programming (LP) form for the SSPSs by applying the matrix decomposition technique to the controller gain matrix and controller auxiliary gain matrix.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2023)
Article
Automation & Control Systems
Shuo Li, Zhengrong Xiang, Junfeng Zhang
Summary: This article addresses the problems of robust stability and stabilization for uncertain switched positive systems under various mode-dependent dwell-time constraints. It introduces a new Lyapunov-Krasovskii functional technique for systems with mode-dependent dwell-time constraints and provides conditions that are applicable to specific situations. The article also includes five examples to illustrate the importance and effectiveness of the results.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2021)
Article
Automation & Control Systems
Shuo Li, Zilan Chen, Zhengrong Xiang
Summary: The article focuses on the problems of positivity and decentralized L1 control for nonlinear interconnected switched positive systems under mode-dependent dwell time constraints. It provides sufficient conditions of positivity and exponential stability with L1-gain performance for the systems, and proposes an effective mode-dependent piece-wise design scheme of decentralized L1 controller. The obtained results are illustrated through examples and comparisons.
NONLINEAR ANALYSIS-HYBRID SYSTEMS
(2023)
Article
Automation & Control Systems
Mohammad Ali Nojoumian, Mohammad Reza Zakerzadeh, Moosa Ayati
Summary: This study proposes a bumpless transfer stabilization method for a class of switched positive nonlinear systems with time-varying delay. The contribution of this study is to improve the transient performance of the switched positive systems by introducing a BT performance index and ensuring the L1-gain performance. A novel piecewise-continuous multiple Lyapunov-Krasovskii functional is used for stability analysis and control design, and the control design methodology is established under Mode Dependent Average Dwell Time. Furthermore, the BT stabilization of the system under asynchronous switching conditions is investigated.
NONLINEAR ANALYSIS-HYBRID SYSTEMS
(2023)
Article
Automation & Control Systems
Niankun Zhang, Guoyong Chen
Summary: This article investigates the state-feedback L1$$ {L}_1 $$ finite-time control problem for discrete-time switched positive linear systems with mode-dependent persistent dwell-time (MDPDT) switching. The MDPDT switching is more general than the common dwell-time and average dwell-time switching and can perfectly model a type of switched systems with hybrid slow and fast switching properties. The article adopts multiple linear copositive Lyapunov functions instead of traditional quadratic Lyapunov functions, and utilizes the linear programming approach to derive sufficient criteria of finite-time stability. The relationship between the lower bound of switching signals and parameters of the constructed controllers is successfully found, and a sufficient condition to ensure positive and L1$$ {L}_1 $$ finite-time boundedness of the closed-loop switched system is proposed. The efficiency of the conclusions is validated by two illustrative examples.
OPTIMAL CONTROL APPLICATIONS & METHODS
(2022)
Article
Mathematics, Applied
Yu Kang, Niankun Zhang, Guoyong Chen
Summary: This research explores the global exponential stability of a type of continuous-time impulsive switched positive nonlinear systems (ISPNSs) with average dwell time switching and mode-dependent impulsive effects. By introducing the multiple max-separable Lyapunov functions method, the relation between impulse strength, system modes, average dwell time, and mode-dependent average impulsive interval is successfully established, and several stability conditions are presented.
APPLIED MATHEMATICS AND COMPUTATION
(2023)
Article
Automation & Control Systems
Zhongyang Fei, Weizhong Chen, Xudong Zhao
Summary: This paper investigates the zonotopic state estimation for discrete-time switched positive systems under asynchronism. A new radius definition called positive generator matrix based radius (PGR) is proposed to characterize the size of state zonotope and derive linear programming conditions. An iterative estimation procedure is proposed to construct the state bounding zonotope, allowing the mode-dependent weighted PGR to increase within asynchronous intervals. The proposed approach is validated through a simulation example.
Article
Automation & Control Systems
Yihao Xu, Alexandre Seuret, Kun Liu, Senchun Chai
Summary: The recent literature on event-triggered control has shown the potential of dynamic periodic event-triggered control. The benefit of considering periodic event-triggered control is to avoid the Zeno phenomenon. This paper proposes a generic framework to emulate aperiodic dynamic event-triggered control law and relaxes the constraint on the periodicity of the allowable sampling instants.
NONLINEAR ANALYSIS-HYBRID SYSTEMS
(2024)
Article
Automation & Control Systems
Yuan Tian, Chunxue Li, Jing Liu
Summary: Competition is a common biological relationship in nature, especially for fish species. This study proposes three novel mathematical models for competition between two fish populations, with control based on linear correlation feedback. The models consider different scenarios and purposes, including avoiding extinction of an inferior population, maximizing economic benefits, and preventing extinction due to unequal competition. The study provides effective control strategies and parameter optimization designs for these scenarios. Numerical simulations are conducted to demonstrate the theoretical results and feasibility of the control strategies. The findings contribute to our understanding of competition dynamics and provide insights for achieving coexistence in two-population systems.
NONLINEAR ANALYSIS-HYBRID SYSTEMS
(2024)
Article
Automation & Control Systems
Everaldo de Mello Bonotto, Piotr Kalita
Summary: We propose new criteria for the existence of global attractors for problems with state-dependent impulses that are more general than those previously known. Our results are applicable to both nonunique and unique solutions, and we provide collective versions of the criteria that demonstrate the upper-semicontinuity of global attractors under perturbation. The theory is illustrated through examples of ODEs and PDEs.
NONLINEAR ANALYSIS-HYBRID SYSTEMS
(2024)
Article
Automation & Control Systems
Feng Li, Zhenghao Ni, Lei Su, Jianwei Xia, Hao Shen
Summary: This paper addresses the problem of finite-region passive control for 2-D Markov jump Roesser systems, considering the partial statistical information issues on Markov parameters and transition probabilities. A 2-D hidden Markov model with partial statistical information is established to model this situation. The goal is to design a controller based on the 2-D hidden Markov model that ensures finite-time boundedness of both horizontal and vertical states of the 2-D Markov jump Roesser systems, while meeting a passive performance criterion. By employing the Lyapunov function method, criteria for the finite-region boundedness of 2-D Markov jump Roesser systems are developed, and a design method for the asynchronous controller based on the 2-D hidden Markov model is presented. The effectiveness of the proposed design method is validated through an illustrative example.
NONLINEAR ANALYSIS-HYBRID SYSTEMS
(2024)
Article
Automation & Control Systems
Mahathi Anand, Abolfazl Lavaei, Majid Zamani
Summary: This paper proposes a compositional scheme for constructing control barrier certificates for interconnected discrete-time stochastic systems, which can synthesize switching controllers satisfying w-regular properties and provide probabilistic guarantees for specification satisfaction. The proposed scheme leverages interconnection topology and control sub-barrier certificates of subsystems to compositionally construct control barrier certificates of interconnected systems.
NONLINEAR ANALYSIS-HYBRID SYSTEMS
(2024)
Article
Automation & Control Systems
Weijun Ma, Bo Yang, Yuanshi Zheng
Summary: This paper develops new practical stability criteria for impulsive stochastic functional differential systems with distributed-delay dependent impulses, and shows that under certain conditions, the practical exponential stability of the systems remains unchanged.
NONLINEAR ANALYSIS-HYBRID SYSTEMS
(2024)
Article
Automation & Control Systems
Xueying Ding, Jianquan Lu, Xiangyong Chen
Summary: This paper investigates the stability of impulsive logical dynamic systems (ILDNs) from the perspectives of impulsive disturbance and impulsive control. The existing results on ILDN stability only consider a given impulsive instant sequence (IIS), which is restrictive. The paper proposes necessary and sufficient conditions for ILDN stability under any IIS by constructing a merged ILDN. However, these conditions are too strict as it is uncommon for a stable LDN to remain stable under any IIS. The paper introduces the concepts of impulsive disturbances and impulsive control, and presents sufficient conditions for LDN stability under time-triggered IISs with average impulsive interval. These results are also applied to set stability of ILDNs.
NONLINEAR ANALYSIS-HYBRID SYSTEMS
(2024)
Article
Automation & Control Systems
Chunmei Zhang, Huiling Chen, Qin Xu, Yuli Feng, Ran Li
Summary: This article discusses a class of stochastic hybrid delayed coupled systems with multiple weights, and derives several conditions for asymptotic synchronization and topology identification of the systems based on Kirchhoff's Matrix-Tree Theorem and Lyapunov stability theory.
NONLINEAR ANALYSIS-HYBRID SYSTEMS
(2024)
Article
Automation & Control Systems
Yan Zhu, Zhendong Sun
Summary: In this work, we address the minimum realization problem for controllability and observability of both continuous-time and discrete-time switched linear systems, and provide results for the tight upper bound.
NONLINEAR ANALYSIS-HYBRID SYSTEMS
(2024)
Article
Automation & Control Systems
Weilian Liu, Xinyi He, Xiaodi Li
Summary: This paper investigates the problem of global exponential stability for nonlinear delay impulsive systems. By extending the traditional comparison principle and estimating the effects of delay on continuous and discrete dynamics, the internal relationship between delays, parameters of impulsive control, and continuous dynamics is revealed. Sufficient criteria for global exponential stability are obtained, quantitatively demonstrating the beneficial influences of delays on the system performance.
NONLINEAR ANALYSIS-HYBRID SYSTEMS
(2024)
Article
Automation & Control Systems
Yanan Qi, Xianfu Zhang, Yanjie Chang, Rui Mu
Summary: This paper proposes a switching event-triggered approach to address the global output-feedback stabilization problem for a class of uncertain nonlinear systems. By using an event-triggered mechanism and a logic-based switching mechanism, the proposed approach determines the timing for sampling and switching control parameters, and develops an observer-based control scheme. With the ability to adaptively adjust the control parameter, this scheme has a stronger capability to handle large uncertainties, inherent nonlinearities, and sampling errors.
NONLINEAR ANALYSIS-HYBRID SYSTEMS
(2024)