European Journal of Control最新文献_第5页

Concave K∞ function-based adaptive tracking control of nonlinear second-order system 基于凹K∞函数的非线性二阶系统自适应跟踪控制

IF 2.5 3区计算机科学

European Journal of Control Pub Date : 2025-02-06 DOI: 10.1016/j.ejcon.2025.101191

Wu Yang , Xing Zhang , Li-Mei Wei , Yan-Wu Wang , Xiao-Kang Liu

引用次数: 0

Adaptive tracking control for non-periodic reference signals under quantized observations 量化观测下非周期参考信号的自适应跟踪控制

IF 2.5 3区计算机科学

European Journal of Control Pub Date : 2025-02-06 DOI: 10.1016/j.ejcon.2025.101195

Chuiliu Kong , Ying Wang

{"title":"Adaptive tracking control for non-periodic reference signals under quantized observations","authors":"Chuiliu Kong , Ying Wang","doi":"10.1016/j.ejcon.2025.101195","DOIUrl":"10.1016/j.ejcon.2025.101195","url":null,"abstract":"<div><div>This paper considers an adaptive tracking control problem for stochastic regression systems with multi-threshold quantized observations. Different from the existing studies for periodic reference signals, the reference signals in this paper are non-periodic. The main difficulty is how to ensure that the designed controller satisfies the uniformly bounded and excitation conditions that guarantee the convergence of the estimation in the controller under non-periodic reference signals. This paper designs two backward-shifted polynomials with time-varying parameters and a special projection structure, which break through periodic limitations and establish the convergence and tracking properties. To be specific, the adaptive tracking control law can achieve asymptotically optimal tracking for the non-periodic reference signal in the mean square sense. Besides, the proposed estimation algorithm is proved to converge to the true values in almost sure and mean square sense, and the convergence speed can reach <span><math><mrow><mi>O</mi><mfenced><mrow><mfrac><mrow><mn>1</mn></mrow><mrow><mi>k</mi></mrow></mfrac></mrow></mfenced></mrow></math></span> under suitable design of the quantized weight coefficients. Finally, the effectiveness of the proposed adaptive tracking control scheme is verified through a simulation.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"82 ","pages":"Article 101195"},"PeriodicalIF":2.5,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143428134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Convex handling of nonlinear nominal models can overcome limitations on sliding mode observer design 非线性标称模型的凸处理可以克服滑模观测器设计的局限性

IF 2.5 3区计算机科学

European Journal of Control Pub Date : 2025-02-05 DOI: 10.1016/j.ejcon.2025.101192

David Vázquez , Daniel Quintana , Alan Tapia , Víctor Estrada-Manzo , Miguel Bernal

引用次数: 0

Infinite-dimensional port-Hamiltonian systems with a stationary interface 具有固定界面的无限维端口-哈密顿系统

IF 2.5 3区计算机科学

European Journal of Control Pub Date : 2025-02-05 DOI: 10.1016/j.ejcon.2025.101190

Alexander Kilian , Bernhard Maschke , Andrii Mironchenko , Fabian Wirth

引用次数: 0

Almost sure stability of discrete-time linear systems subject to nested quantization under erasure channels of limited data rate 基于嵌套量化的离散线性系统在有限数据速率的擦除信道下的几乎肯定稳定性

IF 2.5 3区计算机科学

European Journal of Control Pub Date : 2025-02-04 DOI: 10.1016/j.ejcon.2025.101194

Jian Wang , Jiafeng Yu

{"title":"Almost sure stability of discrete-time linear systems subject to nested quantization under erasure channels of limited data rate","authors":"Jian Wang , Jiafeng Yu","doi":"10.1016/j.ejcon.2025.101194","DOIUrl":"10.1016/j.ejcon.2025.101194","url":null,"abstract":"<div><div>This paper investigates almost sure stability of discrete-time linear systems over packet erasure forward channel (the channel from the controller to the actuator) and packet erasure backward channel (the channel from the sensor to the controller) of limited data rate, which involves input quantization (for the controller output) and output quantization (for the plant output) with limited data rate. The interaction of output quantization and input quantization may lead to the nested quantizations, which complicates the system design immensely. Moreover, only by the plant output or the controller output received by their quantizers, the quantizers can not decide the dynamics of quantization region of the plant output and the controller output under packet erasure forward and backward channels, so some dynamical systems are constructed to represent the dynamics of quantization region for quantizing the outputs of the system and the controller. Specially, the state vector of the dynamical systems composes of not only the real outputs of the system and the controller but also their quantized values at last time. By these dynamical systems the considered system is modeled by a stochastic difference system, and the considered problem is transformed into the almost sure stability problem of the stochastic difference system. With spherical polar coordinate quantizer and the constructed systems, a quantization method is presented for solving nested quantization with limited data rate and achieving almost sure stability of the systems under the packet erasure channels. Numerical examples show the effectiveness of the results.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"82 ","pages":"Article 101194"},"PeriodicalIF":2.5,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143358783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stability analysis of switching systems under the improved persistent dwell time strategy 改进持续停留时间策略下切换系统的稳定性分析

IF 2.5 3区计算机科学

European Journal of Control Pub Date : 2025-02-03 DOI: 10.1016/j.ejcon.2025.101193

Qiang Yu, Yuanyang Feng

引用次数: 0

Model reference adaptive control for state and input constrained linear systems 状态和输入约束线性系统的模型参考自适应控制

IF 2.5 3区计算机科学

European Journal of Control Pub Date : 2025-01-31 DOI: 10.1016/j.ejcon.2025.101196

Sudipta Chattopadhyay, Srikant Sukumar, Vivek Natarajan

{"title":"Model reference adaptive control for state and input constrained linear systems","authors":"Sudipta Chattopadhyay, Srikant Sukumar, Vivek Natarajan","doi":"10.1016/j.ejcon.2025.101196","DOIUrl":"10.1016/j.ejcon.2025.101196","url":null,"abstract":"<div><div>State and input constraints are ubiquitous in all engineering systems and developing adaptive controllers for uncertain linear systems under pre-specified state and input constraints is a problem of fundamental interest. For uncertain linear systems, a computationally inexpensive control method is the model reference adaptive control (MRAC). Although MRAC controllers come with strong stability guarantees they do not guarantee system operation within the pre-defined state and input constraints. Several modifications of the MRAC framework have been proposed to address input constraints in uncertain linear systems. Considering the infeasibility of arbitrary reference trajectories, reference modification has been implemented in the case of input constraints in the literature. The resulting conditions on the reference and input signals are difficult to verify online. Similar results on state and input constraints together have also been proposed, albeit resulting in more complex and unverifiable conditions on the control. In this paper, we have developed a modified MRAC controller that can handle state and input constraints in uncertain linear systems. We have also provided easily verifiable conditions on the control and reference under which our stability results hold. Obtaining such a verifiable condition is crucial in practical implementations on safety–critical systems. A combination of reference modification and barrier Lyapunov methods in adaptive control are employed to arrive at these results.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"82 ","pages":"Article 101196"},"PeriodicalIF":2.5,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A robust trajectory tracking controller for a magnetic system: A sliding mode-based approach 磁系统鲁棒轨迹跟踪控制器：一种基于滑模的方法

IF 2.5 3区计算机科学

European Journal of Control Pub Date : 2025-01-31 DOI: 10.1016/j.ejcon.2025.101189

Carlos Aguilar-Ibanez , Miguel S. Suarez-Castanon , Belem Saldivar , Juan Carlos Martínez-García , Octavio Gutiérrez-Frias

{"title":"A robust trajectory tracking controller for a magnetic system: A sliding mode-based approach","authors":"Carlos Aguilar-Ibanez , Miguel S. Suarez-Castanon , Belem Saldivar , Juan Carlos Martínez-García , Octavio Gutiérrez-Frias","doi":"10.1016/j.ejcon.2025.101189","DOIUrl":"10.1016/j.ejcon.2025.101189","url":null,"abstract":"<div><div>A robust control strategy is developed to address the position trajectory tracking problem in a perturbed magnetic levitation system. The system consists of two electromagnets, each controlled by its respective input voltage. To enhance the model’s complexity, perturbations are introduced into the electrical and mechanical subsystems. The controller design begins under the assumption of a disturbance-free system. Subsequently, an integral sliding mode controller (ISMC) is incorporated to compensate for matching disturbances initially excluded from the model, and a super-twisting observer (STO) is employed to estimate and reject disturbances affecting the mechanical dynamics. The proposed control strategy enforces the convergence of two invariant manifolds to the origin. The first manifold ensures the asymptotic convergence of the position-tracking error to zero, while the second stabilizes the magnetic system and prevents magnetic flux saturation and singularities. The stability properties of the closed-loop system are rigorously analyzed using Lyapunov-based methods, ensuring robustness against bounded disturbances. Numerical simulations are conducted to evaluate the performance of the control scheme, demonstrating its efficacy in achieving precise trajectory tracking and disturbance rejection under the imposed perturbations.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"82 ","pages":"Article 101189"},"PeriodicalIF":2.5,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

State estimation for a class of nonlinear time-varying uncertain systems under multiharmonic disturbance 多谐干扰下一类非线性时变不确定系统的状态估计

IF 2.5 3区计算机科学

European Journal of Control Pub Date : 2025-01-27 DOI: 10.1016/j.ejcon.2025.101185

Alexey A. Margun , Van H. Bui , Alexey A. Bobtsov , Denis V. Efimov

{"title":"State estimation for a class of nonlinear time-varying uncertain systems under multiharmonic disturbance","authors":"Alexey A. Margun , Van H. Bui , Alexey A. Bobtsov , Denis V. Efimov","doi":"10.1016/j.ejcon.2025.101185","DOIUrl":"10.1016/j.ejcon.2025.101185","url":null,"abstract":"<div><div>The paper considers the observer synthesis for nonlinear, time-varying plants with uncertain parameters under multiharmonic disturbance. It is assumed that the relative degree of the plant is known, the regressor linearly depends on the state vector and may have a nonlinear relationship with the output signal. The proposed solution consists of three steps. Initially, an unknown input state observer is synthesized. This observer, however, necessitates the measurement of output derivatives equal to the plant’s relative degree. To relax this limitation, an alternative representation of the observer is introduced. Further, based on this observer, the unknown parameters and disturbances are reconstructed using an autoregression model and the dynamic regressor extension and mixing (DREM) approach. This approach allows the estimates to be obtained in a finite time. Finally, based on these estimates, an observer has been constructed that does not require measurements of the output derivatives. The effectiveness and efficiency of this solution are demonstrated through a computer simulation.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"82 ","pages":"Article 101185"},"PeriodicalIF":2.5,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Actuator fault-tolerant mixed passivity and H∞ control for autonomous marine surface vehicles: a sampled-data approach” [European Journal of Control 81 (2025) 101167] “自动海面车辆的执行器容错混合被动和H∞控制：一种采样数据方法”的勘误表[欧洲控制杂志81 (2025)101167]

IF 2.5 3区计算机科学

European Journal of Control Pub Date : 2025-01-23 DOI: 10.1016/j.ejcon.2025.101188

Soundararajan Vimal Kumar, Jonghoek Kim

引用次数: 0