发布求助
文献互助 智能选刊 最新文献

IEEE Control Systems Letters最新文献

筛选
英文 中文
Distributed State Estimation of Linear Systems With Randomly Switching Communication Graphs 具有随机切换通信图谱的线性系统分布式状态估计
IF 2.4
IEEE Control Systems Letters Pub Date : 2024-06-14 DOI: 10.1109/LCSYS.2024.3414977
Edwin Baum;Zonglin Liu;Olaf Stursberg
{"title":"Distributed State Estimation of Linear Systems With Randomly Switching Communication Graphs","authors":"Edwin Baum;Zonglin Liu;Olaf Stursberg","doi":"10.1109/LCSYS.2024.3414977","DOIUrl":"https://doi.org/10.1109/LCSYS.2024.3414977","url":null,"abstract":"This letter introduces two novel methods to synthesize distributed observers for time-varying communication graphs which are modeled as continuous-time Markov processes. The first method obtains all design parameters in a centralized step by solving a system of coupled LMI, while the second method utilizes an observability decomposition to design the parameters locally by partitioning into observable and unobservable system parts. For both methods, this letter provides sufficient conditions for the existence of distributed observers which asymptotically achieve omniscience almost surely. A numerical example to compare the two methods is provided in addition.","PeriodicalId":37235,"journal":{"name":"IEEE Control Systems Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reachability Analysis Using Constrained Polynomial Logical Zonotopes 利用受限多项式逻辑纵切面进行可达性分析
IF 2.4
IEEE Control Systems Letters Pub Date : 2024-06-14 DOI: 10.1109/LCSYS.2024.3414972
Ahmad Hafez;Frank J. Jiang;Karl H. Johansson;Amr Alanwar
{"title":"Reachability Analysis Using Constrained Polynomial Logical Zonotopes","authors":"Ahmad Hafez;Frank J. Jiang;Karl H. Johansson;Amr Alanwar","doi":"10.1109/LCSYS.2024.3414972","DOIUrl":"https://doi.org/10.1109/LCSYS.2024.3414972","url":null,"abstract":"This letter presents a novel approach for reachability analysis of using constrained polynomial logical zonotopes. We perform reachability analysis to compute the set of reachable states using a recently introduced set representation called polynomial logical zonotopes, enabling computationally efficient and exact reachability analysis on logical systems. Notably, polynomial logical zonotopes address the “curse of dimensionality” when analyzing the reachability of logical systems since the set representation can represent \u0000<inline-formula> <tex-math>$2^{h}$ </tex-math></inline-formula>\u0000 binary vectors using h generators. After finishing the reachability analysis, the formal verification involves verifying whether the intersection of the calculated reachable set and the unsafe set is empty or not. Polynomial logical zonotopes lack closure under intersections, prompting the formulation of constrained polynomial logical zonotopes, which preserve the computational efficiency and exactness of polynomial logical zonotopes for reachability analysis while enabling exact intersections. Additionally, an extensive empirical study is presented to demonstrate and validate the advantages of constrained polynomial logical zonotopes.","PeriodicalId":37235,"journal":{"name":"IEEE Control Systems Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142329332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Output-Feedback Synthesis Orbit Geometry: Quotient Manifolds and LQG Direct Policy Optimization 输出反馈合成轨道几何：矩阵和 LQG 直接策略优化
IF 2.4
IEEE Control Systems Letters Pub Date : 2024-06-14 DOI: 10.1109/LCSYS.2024.3414962
Spencer Kraisler;Mehran Mesbahi
{"title":"Output-Feedback Synthesis Orbit Geometry: Quotient Manifolds and LQG Direct Policy Optimization","authors":"Spencer Kraisler;Mehran Mesbahi","doi":"10.1109/LCSYS.2024.3414962","DOIUrl":"https://doi.org/10.1109/LCSYS.2024.3414962","url":null,"abstract":"We consider direct policy optimization for the linear-quadratic Gaussian (LQG) setting. Over the past few years, it has been recognized that the landscape of dynamic output-feedback controllers of relevance to LQG has an intricate geometry, particularly pertaining to the existence of degenerate stationary points, that hinders gradient methods. In order to address these challenges, in this letter, we adopt a system-theoretic coordinate-invariant Riemannian metric for the space of dynamic output-feedback controllers and develop a Riemannian gradient descent for direct LQG policy optimization. We then proceed to prove that the orbit space of such controllers, modulo the coordinate transformation, admits a Riemannian quotient manifold structure. This geometric structure-that is of independent interest-provides an effective approach to derive direct policy optimization algorithms for LQG with a local linear rate convergence guarantee. Subsequently, we show that the proposed approach exhibits significantly faster and more robust numerical performance as compared with ordinary gradient descent.","PeriodicalId":37235,"journal":{"name":"IEEE Control Systems Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141495011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Coherency-Aware Learning Control of Inverter-Dominated Grids: A Distributed Risk-Constrained Approach 逆变器主导电网的一致性感知学习控制：分布式风险约束方法
IF 2.4
IEEE Control Systems Letters Pub Date : 2024-06-13 DOI: 10.1109/LCSYS.2024.3413868
Kyung-Bin Kwon;Ramij Raja Hossain;Sayak Mukherjee;Kaustav Chatterjee;Soumya Kundu;Sameer Nekkalapu;Marcelo Elizondo
{"title":"Coherency-Aware Learning Control of Inverter-Dominated Grids: A Distributed Risk-Constrained Approach","authors":"Kyung-Bin Kwon;Ramij Raja Hossain;Sayak Mukherjee;Kaustav Chatterjee;Soumya Kundu;Sameer Nekkalapu;Marcelo Elizondo","doi":"10.1109/LCSYS.2024.3413868","DOIUrl":"https://doi.org/10.1109/LCSYS.2024.3413868","url":null,"abstract":"This letter investigates the importance of integrating the coherency knowledge for designing controllers to dampen sustained oscillations in wide-area power networks with significant penetration of inverter-interfaced resources. Coherency is a fundamental property of power systems, where time-scale separation in frequency dynamics leads to clustered behavior among generators of different groups. Large-scale penetration of inverter-driven low inertia resources replacing conventional synchronous generators (SGs) can lead to perturbation in the coherent partitioning; hence, integrating such information is of utmost importance for oscillation control designs. We present the coherency-aware design of a distributed output feedback-based reinforcement learning method that additionally incorporates risk constraints to capture the uncertainties related to net-load fluctuations. The use of domain-aware coherency information has produced improved training and oscillation performance than the coherency-agnostic control design, hence proving to be effective in controller design. Finally, we validated the proposed method with numerical experiments on the benchmark IEEE 68-bus test system.","PeriodicalId":37235,"journal":{"name":"IEEE Control Systems Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142159878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Output Feedback Tracking Control for a Class of Bilinear Systems: Application to Power Electronics Devices 一类双线性系统的输出反馈跟踪控制：电力电子设备的应用
IF 2.4
IEEE Control Systems Letters Pub Date : 2024-06-13 DOI: 10.1109/LCSYS.2024.3414349
Amir Reza Zare;Mahdi Aliyari-Shoorehdeli;Mehdi Tavan;Kamran Sabahi
{"title":"Output Feedback Tracking Control for a Class of Bilinear Systems: Application to Power Electronics Devices","authors":"Amir Reza Zare;Mahdi Aliyari-Shoorehdeli;Mehdi Tavan;Kamran Sabahi","doi":"10.1109/LCSYS.2024.3414349","DOIUrl":"https://doi.org/10.1109/LCSYS.2024.3414349","url":null,"abstract":"This letter studies the design of state and output feedback control for a class of bilinear systems aimed at achieving global exponential tracking of (admissible, differentiable) time-varying trajectories. We demonstrate that a persistency of excitation (PE) assumption on the desired trajectories is sufficient to achieve the control objective via a simple state feedback proportional (P) controller. The controller, in conjunction with a globally stable Kalman-like observer, is further developed into a certainty-equivalent output feedback version, maintaining stability under a detectability condition that depends on the behavior of the desired control effort. The proposed algorithm is applied to control a lossless single-phase grid-connected PV inverter with an unmeasurable output current.","PeriodicalId":37235,"journal":{"name":"IEEE Control Systems Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141965910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Event-Triggered Parameterized Control of Nonlinear Systems 非线性系统的事件触发参数化控制
IF 2.4
IEEE Control Systems Letters Pub Date : 2024-06-13 DOI: 10.1109/LCSYS.2024.3414290
Anusree Rajan;Pavankumar Tallapragada
{"title":"Event-Triggered Parameterized Control of Nonlinear Systems","authors":"Anusree Rajan;Pavankumar Tallapragada","doi":"10.1109/LCSYS.2024.3414290","DOIUrl":"https://doi.org/10.1109/LCSYS.2024.3414290","url":null,"abstract":"This letter deals with event-triggered parameterized control (ETPC) of nonlinear systems with external disturbances. In this control method, between two successive events, each control input to the plant is a linear combination of a set of linearly independent scalar functions. At each event, the controller updates the coefficients of the parameterized control input so as to minimize the error in approximating a continuous time control signal and communicates the same to the actuator. We design an event-triggering rule (ETR) that guarantees global uniform ultimate boundedness of trajectories of the closed loop system. We also ensure the absence of Zeno behavior by showing the existence of a uniform positive lower bound on the inter-event times (IETs). We illustrate our results through numerical examples.","PeriodicalId":37235,"journal":{"name":"IEEE Control Systems Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the Set of Possible Minimizers of a Sum of Convex Functions 论凸函数之和的可能最小值集合
IF 2.4
IEEE Control Systems Letters Pub Date : 2024-06-13 DOI: 10.1109/LCSYS.2024.3414378
Moslem Zamani;François Glineur;Julien M. Hendrickx
{"title":"On the Set of Possible Minimizers of a Sum of Convex Functions","authors":"Moslem Zamani;François Glineur;Julien M. Hendrickx","doi":"10.1109/LCSYS.2024.3414378","DOIUrl":"https://doi.org/10.1109/LCSYS.2024.3414378","url":null,"abstract":"Consider a sum of convex functions, where the only information known about each individual summand is the location of a minimizer. In this letter, we give an exact characterization of the set of possible minimizers of the sum. Our results cover several types of assumptions on the summands, such as smoothness or strong convexity. Our main tool is the use of necessary and sufficient conditions for interpolating the considered function classes, which leads to shorter and more direct proofs in comparison with previous work. We also address the setting where each summand minimizer is assumed to lie in a unit ball, and prove a tight bound on the norm of any minimizer of the sum.","PeriodicalId":37235,"journal":{"name":"IEEE Control Systems Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Discrete-Time Stochastic LQR via Path Integral Control and Its Sample Complexity Analysis 通过路径积分控制的离散时间随机 LQR 及其样本复杂性分析
IF 2.4
IEEE Control Systems Letters Pub Date : 2024-06-13 DOI: 10.1109/LCSYS.2024.3413869
Apurva Patil;Grani A. Hanasusanto;Takashi Tanaka
{"title":"Discrete-Time Stochastic LQR via Path Integral Control and Its Sample Complexity Analysis","authors":"Apurva Patil;Grani A. Hanasusanto;Takashi Tanaka","doi":"10.1109/LCSYS.2024.3413869","DOIUrl":"https://doi.org/10.1109/LCSYS.2024.3413869","url":null,"abstract":"In this letter, we derive the path integral control algorithm to solve a discrete-time stochastic Linear Quadratic Regulator (LQR) problem and carry out its sample complexity analysis. While the stochastic LQR problem can be efficiently solved by the standard backward Riccati recursion, our primary focus in this letter is to establish the foundation for a sample complexity analysis of the path integral method when the analytical expressions of optimal control law and the cost are available. Specifically, we derive a bound on the error between the optimal LQR input and the input computed by the path integral method as a function of the sample size. Our analysis reveals that the sample size required exhibits a logarithmic dependence on the dimension of the control input. Lastly, we formulate a chance-constrained optimization problem whose solution quantifies the worst-case control performance of the path integral approach.","PeriodicalId":37235,"journal":{"name":"IEEE Control Systems Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141495212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On Weakly Contracting Dynamics for Convex Optimization 关于凸优化的弱契约动力学
IF 2.4
IEEE Control Systems Letters Pub Date : 2024-06-13 DOI: 10.1109/LCSYS.2024.3414348
Veronica Centorrino;Alexander Davydov;Anand Gokhale;Giovanni Russo;Francesco Bullo
{"title":"On Weakly Contracting Dynamics for Convex Optimization","authors":"Veronica Centorrino;Alexander Davydov;Anand Gokhale;Giovanni Russo;Francesco Bullo","doi":"10.1109/LCSYS.2024.3414348","DOIUrl":"https://doi.org/10.1109/LCSYS.2024.3414348","url":null,"abstract":"We analyze the convergence behavior of globally weakly and locally strongly contracting dynamics. Such dynamics naturally arise in the context of convex optimization problems with a unique minimizer. We show that convergence to the equilibrium is linear-exponential, in the sense that the distance between each solution and the equilibrium is upper bounded by a function that first decreases linearly and then exponentially. As we show, the linear-exponential dependency arises naturally in certain dynamics with saturations. Additionally, we provide a sufficient condition for local input-to-state stability. Finally, we illustrate our results on, and propose a conjecture for, continuous-time dynamical systems solving linear programs.","PeriodicalId":37235,"journal":{"name":"IEEE Control Systems Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Linear Quadratic Zero-Sum Differential Games With Intermittent and Costly Sensing 具有间歇性和高成本传感的线性二次零和差分博弈
IF 2.4
IEEE Control Systems Letters Pub Date : 2024-06-13 DOI: 10.1109/LCSYS.2024.3413870
Shubham Aggarwal;Tamer Başar;Dipankar Maity
{"title":"Linear Quadratic Zero-Sum Differential Games With Intermittent and Costly Sensing","authors":"Shubham Aggarwal;Tamer Başar;Dipankar Maity","doi":"10.1109/LCSYS.2024.3413870","DOIUrl":"https://doi.org/10.1109/LCSYS.2024.3413870","url":null,"abstract":"In this letter, we revisit the two-player continuous-time infinite-horizon linear quadratic differential game problem, where one of the players can sample the state of the system only intermittently due to a sensing constraint while the other player can do so continuously. Under these asymmetric sensing limitations between the players, we analyze the optimal sensing and control strategies for the player at a disadvantage while the other player continues to play its security strategy. We derive an optimal sensor policy within the class of stationary randomized policies. Finally, using simulations, we show that the expected cost accrued by the first player approaches its security level as its sensing limitation is relaxed.","PeriodicalId":37235,"journal":{"name":"IEEE Control Systems Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10556616","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信