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Well-posedness of a class of infinite-dimensional port-Hamiltonian systems with boundary control and observation⁎ 一类具有边界控制和观测的无限维port- hamilton系统的适定性
IFAC-PapersOnLine Pub Date : 2025-01-01 DOI: 10.1016/j.ifacol.2025.08.074
Bouchra Elghazi , Birgit Jacob , Hans Zwart
{"title":"Well-posedness of a class of infinite-dimensional port-Hamiltonian systems with boundary control and observation⁎","authors":"Bouchra Elghazi ,&nbsp;Birgit Jacob ,&nbsp;Hans Zwart","doi":"10.1016/j.ifacol.2025.08.074","DOIUrl":"10.1016/j.ifacol.2025.08.074","url":null,"abstract":"<div><div>We characterize the well-posedness of a class of infinite-dimensional port-Hamiltonian systems with boundary control and observation. This class includes in particular the Euler-Bernoulli beam equations and more generally 1D linear infinite-dimensional port-Hamiltonian systems with boundary control and observation as well as coupled systems. It is known, that for the Timoshenko beam models internal well-posedness implies well-posedness of the overall system. By means of an example we show that this is not true for the Euler-Bernoulli beam models. An easy verifiable equivalent condition for well-posedness of the overall system will be presented. We will conclude the paper by applying the obtained results to several Euler-Bernoulli beam models.</div></div>","PeriodicalId":37894,"journal":{"name":"IFAC-PapersOnLine","volume":"59 8","pages":"Pages 102-107"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144913637","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
Modeling floating bodies in shallow water⁎ 浅水浮体建模
IFAC-PapersOnLine Pub Date : 2025-01-01 DOI: 10.1016/j.ifacol.2025.08.076
Maddalen Irigoien Kortabitarte , George Weiss
{"title":"Modeling floating bodies in shallow water⁎","authors":"Maddalen Irigoien Kortabitarte ,&nbsp;George Weiss","doi":"10.1016/j.ifacol.2025.08.076","DOIUrl":"10.1016/j.ifacol.2025.08.076","url":null,"abstract":"<div><div>We study the motion of a floating rigid body in shallow waters using the Lagrangian formalism and Hamilton’s principle. For simplicity, the rigid body is assumed to be constrained to move only in the vertical direction and the boundary of the rigid body which is in contact with the fluid, the so-called wetted surface c<sub>w</sub>, is assumed to be the graph of a function. Equations of motion are derived in this way for a general function c<sub>w</sub> and later applied to the particular case when c<sub>w</sub> is given by a parabola centered at the origin.</div></div>","PeriodicalId":37894,"journal":{"name":"IFAC-PapersOnLine","volume":"59 8","pages":"Pages 114-118"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144913639","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
Boundary feedback control of a 2x2 weakly hyperbolic system: Lyapunov-based approach 2x2弱双曲系统的边界反馈控制：基于lyapunov的方法
IFAC-PapersOnLine Pub Date : 2025-01-01 DOI: 10.1016/j.ifacol.2025.08.083
M.O. Amirat , V. Andrieu , J. Auriol , M. Bajodek , C. Valentin
{"title":"Boundary feedback control of a 2x2 weakly hyperbolic system: Lyapunov-based approach","authors":"M.O. Amirat ,&nbsp;V. Andrieu ,&nbsp;J. Auriol ,&nbsp;M. Bajodek ,&nbsp;C. Valentin","doi":"10.1016/j.ifacol.2025.08.083","DOIUrl":"10.1016/j.ifacol.2025.08.083","url":null,"abstract":"<div><div>In this paper, we propose a feedback boundary control law that ensures the exponential stability of a class of hyperbolic systems characterized by a non-diagonalizable principal part and nonuniform coefficients, as encountered in sedimentation processes and elasticity theory. We establish sufficient conditions for the exponential stability of the closed-loop system. A numerical example is presented to illustrate the effectiveness of the proposed Lyapunov-based stability analysis.</div></div>","PeriodicalId":37894,"journal":{"name":"IFAC-PapersOnLine","volume":"59 8","pages":"Pages 155-160"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144913646","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
State estimation for stochastic parabolic systems: A two-step estimation method⁎ 随机抛物型系统的状态估计：一种两步估计方法
IFAC-PapersOnLine Pub Date : 2025-01-01 DOI: 10.1016/j.ifacol.2025.08.066
Yu Gao , Kai-Ning Wu
{"title":"State estimation for stochastic parabolic systems: A two-step estimation method⁎","authors":"Yu Gao ,&nbsp;Kai-Ning Wu","doi":"10.1016/j.ifacol.2025.08.066","DOIUrl":"10.1016/j.ifacol.2025.08.066","url":null,"abstract":"<div><div>This paper proposes a novel two-step interval estimation-based state estimation scheme for a class of stochastic parabolic systems. Peak-to-peak analysis is introduced to solve the difficulties generated by the spatiotemporal characteristic and the multidimensional nature. Based on the two-step interval estimation method, the adaptive thresholds of the mathematical expectation of the system state are obtained. Numerical simulation is adopted to show the effectiveness of the proposed method.</div></div>","PeriodicalId":37894,"journal":{"name":"IFAC-PapersOnLine","volume":"59 8","pages":"Pages 54-59"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144913769","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
ADC Microgrid as Electric Vehicle Supply Infrastructure: Energy Management Architecture and Field Implementation ADC微电网作为电动汽车供电基础设施：能源管理架构和现场实施
IFAC-PapersOnLine Pub Date : 2025-01-01 DOI: 10.1016/j.ifacol.2025.08.157
F. Marasciuolo , M. Dicorato , G. Forte , G. Tricarico
{"title":"ADC Microgrid as Electric Vehicle Supply Infrastructure: Energy Management Architecture and Field Implementation","authors":"F. Marasciuolo ,&nbsp;M. Dicorato ,&nbsp;G. Forte ,&nbsp;G. Tricarico","doi":"10.1016/j.ifacol.2025.08.157","DOIUrl":"10.1016/j.ifacol.2025.08.157","url":null,"abstract":"<div><div>The wide integration of electric mobility into distribution grids raises issues related to the safe operation of the networks, because of demand peak increase and service to be provided, especially for high charging rates and high vehicle penetration levels. Another crucial aspect concerns the development of a proper charging infrastructure with the aim of ensuring smart charging performances avoiding heavy economic efforts for users. A promising solution is represented by the combination of renewable energy source, storage and charging station in a DC microgrid framework, that could enable smart resource control and allow bidirectional power exchange with the grid for service provision. In this paper, the structure of a modular DC-based electric vehicle supply infrastructure is presented, as real demonstrator installed at the premises of the Bari Port Authority. The main features, along with the communication and control framework of the demonstrator, are described, along with control functions under implementation, and presenting some preliminary test results on the field.</div></div>","PeriodicalId":37894,"journal":{"name":"IFAC-PapersOnLine","volume":"59 9","pages":"Pages 321-326"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060813","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
Adaptive Inertia Controller for Grid-Forming Converters 网格成形变流器的自适应惯性控制
IFAC-PapersOnLine Pub Date : 2025-01-01 DOI: 10.1016/j.ifacol.2025.08.158
Diego Rigato, Davide Biadene, Paolo Magnone, Tommaso Caldognetto
{"title":"Adaptive Inertia Controller for Grid-Forming Converters","authors":"Diego Rigato,&nbsp;Davide Biadene,&nbsp;Paolo Magnone,&nbsp;Tommaso Caldognetto","doi":"10.1016/j.ifacol.2025.08.158","DOIUrl":"10.1016/j.ifacol.2025.08.158","url":null,"abstract":"<div><div>This paper presents an adaptive control technique for grid-forming converters to enhance power quality and frequency stability while providing inertial behavior. Using the virtual synchronous generator model, the approach emulates traditional synchronous machines operation but mitigates instability caused by high inertia values. The proposed adaptive inertia strategy dynamically adjusts the emulated inertia based on rate of change of frequency constraints. Simulation and experimental results demonstrate improved frequency stability and reduced power oscillations across various conditions, making this method a viable solution for enhancing grid forming converter operation.</div></div>","PeriodicalId":37894,"journal":{"name":"IFAC-PapersOnLine","volume":"59 9","pages":"Pages 327-332"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060816","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
Multi-Objective Fitted Q-Iteration: Random sampling for enhanced weights simplex exploration⁎ 多目标拟合q -迭代：增强权单纯形探索的随机抽样方法
IFAC-PapersOnLine Pub Date : 2025-01-01 DOI: 10.1016/j.ifacol.2025.08.160
Emiliano Longo , Davide Spinelli , Matteo Giuliani , Andrea Castelletti
{"title":"Multi-Objective Fitted Q-Iteration: Random sampling for enhanced weights simplex exploration⁎","authors":"Emiliano Longo ,&nbsp;Davide Spinelli ,&nbsp;Matteo Giuliani ,&nbsp;Andrea Castelletti","doi":"10.1016/j.ifacol.2025.08.160","DOIUrl":"10.1016/j.ifacol.2025.08.160","url":null,"abstract":"<div><div>This work explores the application of the Multi-Objective Fitted Q-Iteration (MOFQI) algorithm in water systems control, and introduces the random sampling to maximise the exploration of the weights simplex. MOFQI, as an offline, model-free, and multi-objective control algorithm, mitigates the challenges of dimensionality, modeling complexity, and multiple objectives encountered by traditional dynamic programming approaches. We explore the construction of the training dataset and leverage the Extra-Trees regressor for the continuous Q-function approximation. We compared MOFQI to Stochastic Dynamic Programming (SDP) on the Lake Como case study, which is characterized by three conflicting objectives: flood and drought control and water supply.</div></div>","PeriodicalId":37894,"journal":{"name":"IFAC-PapersOnLine","volume":"59 9","pages":"Pages 339-344"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060818","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
A Cohort-Based Optimization Model for Electric Vehicles Charging 基于队列的电动汽车充电优化模型
IFAC-PapersOnLine Pub Date : 2025-01-01 DOI: 10.1016/j.ifacol.2025.08.130
Giuseppe C. Calafiore, Luca Ambrosino
{"title":"A Cohort-Based Optimization Model for Electric Vehicles Charging","authors":"Giuseppe C. Calafiore,&nbsp;Luca Ambrosino","doi":"10.1016/j.ifacol.2025.08.130","DOIUrl":"10.1016/j.ifacol.2025.08.130","url":null,"abstract":"<div><div>In this paper we propose a novel cohort-based dynamical model for describing the dynamics of charge of electric vehicles (EVs) entering a large EV parking/charge facility. Based on such model, we address the problem of optimally managing the charging and thus allocate power among the EVs so to minimize costs while maintaining customer satisfaction and fulfilling operational constraints. The problem is formulated as a Linear Program (LP), to be solved over a given period of time, on the basis of parameters estimated at the beginning of such period. Our approach is validated through simulations inspired by real electricity price data, demonstrating the potential for relevant cost saving compared to a First-In-First-Served (FIFS) strategy.</div></div>","PeriodicalId":37894,"journal":{"name":"IFAC-PapersOnLine","volume":"59 9","pages":"Pages 163-168"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145061612","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
Heat Recovery Strategies in Logistic Warehouses and Data Centers for Sustainable Residential Heating 可持续住宅供暖的物流仓库和数据中心热回收策略
IFAC-PapersOnLine Pub Date : 2025-01-01 DOI: 10.1016/j.ifacol.2025.09.023
Sakji Imen, Ndhaief Nadia, Rezg Nidhal
{"title":"Heat Recovery Strategies in Logistic Warehouses and Data Centers for Sustainable Residential Heating","authors":"Sakji Imen,&nbsp;Ndhaief Nadia,&nbsp;Rezg Nidhal","doi":"10.1016/j.ifacol.2025.09.023","DOIUrl":"10.1016/j.ifacol.2025.09.023","url":null,"abstract":"<div><div>This study focuses on addressing the growing scarcity of natural resources by exploring strategies for conservation and recycling in energy systems. With increasing pressure on energy supplies and environmental sustainability, the recovery and reuse of waste heat present viable solutions to reduce reliance on traditional resources. This approach emphasizes sustainable development by rethinking energy use in residential heating systems, promoting efficient utilization, and minimizing waste. The results indicate a significant decrease in auxiliary heating consumption, replaced by recovered heating. By integrating heat recovery systems, the study highlights the potential for reducing energy consumption and contributing to a more sustainable and resource-conscious future.</div></div>","PeriodicalId":37894,"journal":{"name":"IFAC-PapersOnLine","volume":"59 10","pages":"Pages 124-129"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159614","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
Sustained Success or Fading Spark? – Long-term Assessment of Participatory Order Assignments in a Warehouse Environment 持续的成功还是褪色的火花？-仓库环境中参与式订单分配的长期评估
IFAC-PapersOnLine Pub Date : 2025-01-01 DOI: 10.1016/j.ifacol.2025.09.002
Thomas De Lombaert , Kris Braekers , René De Koster , Katrien Ramaekers
{"title":"Sustained Success or Fading Spark? – Long-term Assessment of Participatory Order Assignments in a Warehouse Environment","authors":"Thomas De Lombaert ,&nbsp;Kris Braekers ,&nbsp;René De Koster ,&nbsp;Katrien Ramaekers","doi":"10.1016/j.ifacol.2025.09.002","DOIUrl":"10.1016/j.ifacol.2025.09.002","url":null,"abstract":"<div><div>Order picking, a key warehouse process, is known to be costly, monotonous, and tightly regulated by a central planning system. Recent studies have explored a way to mitigate the negative impacts of order picking; they experimentally investigated the feasibility and effects of a <em>participatory order assignment</em> (POA) system, which allows workers to choose their next order and break the monotony rather than being confronted with top-down systemic assignments. Thus far, studies have mainly looked at the effects on productivity and psychosocial and physical well-being shortly after such an autonomy-increasing system redesign, yet little is known about the longevity of these effects. The existing literature emphasises the need for evaluations that go beyond short-term findings to assess effects over a sustained period. The degree to which the observed effects persist over time significantly impacts potential adoption by practitioners. By conducting a unique field experiment in a real-world warehouse, this paper assesses the effects of a POA system over a period of 6 months and finds that the initially observed effects persist over time. We enhance the existing body of literature by providing evidence that POA systems are not only effective, but they also yield long-lasting effects.</div></div>","PeriodicalId":37894,"journal":{"name":"IFAC-PapersOnLine","volume":"59 10","pages":"Pages 1-6"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159623","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
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