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Optimal control of electric automated buses in intercity lines: scenario-based analysis of the Pareto-optimal solutions

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IFAC-PapersOnLine 2024年第10期58卷 37-42页

作者： C. Pasquale S. Sacone S. Siri A. Ferrara Department of Informatics Bioengineering Robotics and Systems Engineering University of Genova Italy Department of Electrical Computer and Biomedical Engineering University of Pavia Italy

This paper deals with the optimal control of electric and automated buses that have to follow an intercity line, where some stops are equipped with a flash-charging infrastructure to charge the batteries, while others are not. In order to control these buses, it is necessary to account for the traffic conditions along the roads of the bus line, and to minimize two objectives related to the deviations from the bus timetable and the lack of energy, at the end of the bus trip, with respect to a desired final energy level. The resulting optimal control problem is a multi-objective linear quadratic problem with both continuous and integer variables. In this paper, we propose and apply two methods based on lexicographic ordering aimed at determining the Pareto-optimal solutions of the control problem in twelve scenarios inspired by a real case.

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Hardware-in-the-Loop (HIL) Simulation: Modeling, Characterization and Analysis of a Distributed Energy Resources in a Microgrid Network 50

Hardware-in-the-Loop (HIL) Simulation: Modeling, Characteriz...

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50th Annual Conference of the IEEE Industrial Electronics Society, IECON 2024

作者： Salvadori, Fabiano Leandro, Paulo G.M. Soares, Manoel B. de Freitas, Isaac S. dos Santos, Euzeli Cipriano Smart Grid Laboratory Federal University of Paraíba Paraíba João Pessoa Brazil Department of Electrical and Computer Engineering Purdue University IndianapolisIN United States

ISBN: (纸本)9781665464543

In this study, we employ Hardware-in-the Loop (HIL) simulation to model, characterize, and analyze the effects of a single-phase microgrid incorporating Distributed Energy Resources (DER) units. HIL simulations allow us to execute an accurate assessment of the performance of DER units before their effective implementation in a real electrical grid. This is critical to identifying and resolving potential issues, optimizing the design and ensuring that the DER meets expectations in terms of energy production, efficiency, and reliability. Accurate system characterization for HIL applications assists in minimizing rework costs and helps to test robustness and evaluate operating scenarios and respond to unforeseen events such as grid failures, playing a crucial role in optimization, integration, safe and efficient operation of distributed generation units. To implement our simulation, we used a microgrid divided in three modules, composed by: 600-nodes, two PV array connected to IGBTs/VSIs, a Battery Energy Storage System (BESS) unit connected to the system via a contactor switch and an output filter and, a Wind Energy Conversion System (WECS) unit. The model and real-time simulation results are presented and analyzed using a OPAL-RTTM 5707 simulator. © 2024 IEEE.

关键词： BESS distributed generation Hardware-in-the-loop Microgrid PV generation

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Graphical Tuning for Robust Stabilization: Implementable Stability Regions for Fractional-Order Proportional Integral Controllers in Interval Fractional-Order systems 63

Graphical Tuning for Robust Stabilization: Implementable Sta...

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63rd IEEE Conference on Decision and Control, CDC 2024

作者： Ghorbani, Majid Farnam, Arash Tepljakov, Aleksei Petlenkov, Eduard Crevecoeur, Guillaume Eskandarian, Azim Tallinn University of Technology Department of Computer Systems Estonia Ghent University FlandersMake@UGent - Corelab Miro Department of Electrical Energy Metals Mechanical Constructions and Systems Ghent Belgium Virginia Commonwealth University College of Engineering Richmond United States

ISBN: (纸本)9798350316339

As it is commonly acknowledged, implementing a fractional-order proportional integral controller involves replacing its fractional term with integer-order approximations. In this letter, we present a graphical tuning approach aimed at robustly stabilizing interval fractional-order systems by employing integer-order approximations of fractional-order proportional integral controllers. Specifically, we calculate the implementable robust stability regions for fractional-order proportional integral controllers in interval fractional-order systems. The implementable robust stability region of an fractional-order proportional integral controller pertains to delineating the robust stability region of its integer-order approximations. It is demonstrated that the robust stability region of a fractional-order proportional integral controller differs from that of its integer-order approximation. Consequently, values conducive to practical controller design reside within the implementable robust stability region. Initially, robust stability analysis of the fractional-order system is conducted using integer-order approximations of fractional-order proportional integral controllers. Subsequently, an algorithm is proposed for computing the implementable robust stability regions of fractional-order proportional integral controllers. Additionally, an auxiliary function is introduced to enhance the performance of the closed-loop control system. Finally, simulation results are offered to verify the theoretical expectations and analyses. © 2024 IEEE.

关键词： Closed loop control systems

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Representative Period Selection for Robust Capacity Expansion Planning in Low-carbon Grids

Representative Period Selection for Robust Capacity Expansio...

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2024 IEEE/PES Transmission and Distribution Conference and Exposition, T and D 2024

作者： Anderson, Osten Yu, Nanpeng Oikonomou, Konstantinos Maloney, Patrick Wu, Di University of California Riverside Department of Electrical and Computer Engineering RiversideCA United States Pacific Northwest National Laboratory System Evaluation Group RichlandWA United States

ISBN: (纸本)9798350316377

Amid the urgency to decarbonize power systems, while mitigating extreme weather events, capacity expansion models can play a vital role in reliably planning the expansion of power systems and facilitating the integration of renewable energy (RE) sources. Optimizing capacity expansion generally involves selecting surrogate representative days from forecasts of load and the generation profiles of variable RE resources. To properly select those representative days, we propose a novel input-based clustering approach that utilizes three unique operational characteristics: load shedding, renewable curtailment, and transmission congestion. The proposed method allows for more robust and cost-effective capacity planning. The method is validated using a capacity expansion model and a production cost model aligned with California Independent System Operator (CAISO)'s decarbonization goals, and results in significant cost reduction and substantial decreases in load shedding. © 2024 IEEE.

关键词： Renewable energy

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Pose Estimation of Buried Deep-Sea Objects using 3D Vision Deep Learning Models

Pose Estimation of Buried Deep-Sea Objects using 3D Vision D...

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OCEANS 2024 - Halifax, OCEANS 2024

作者： Yan, Jerry Talegaonkar, Chinmay Antipa, Nicholas Terrill, Eric Merrifield, Sophia Scripps Institution of Oceanography Ucsd Marine Physical Laboratory La Jolla CA United States Ucsd Department of Electrical and Computer Engineering La Jolla CA United States

ISBN: (纸本)9798331540081

We present an approach for pose and burial frac-tion estimation of debris field barrels found on the seabed in the Southern California San Pedro Basin. Our computational workflow leverages recent advances in foundation models for segmentation and a vision transformer-based approach to esti-mate the point cloud which defines the geometry of the barrel. We propose BarrelNet for estimating the 6-DOF pose and radius of buried barrels from the barrel point clouds as input. We train BarrelNet using synthetically generated barrel point clouds, and qualitatively demonstrate the potential of our approach using remotely operated vehicle (ROV) video footage of barrels found at a historic dump site. We compare our method to a traditional least squares fitting approach and show significant improvement according to our defined benchmarks. © 2024 IEEE.

关键词： Remotely operated vehicles

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Secrecy Throughput Enhancement with ANECE and Multi-Antenna Beamforming in Finite Blocklength

Secrecy Throughput Enhancement with ANECE and Multi-Antenna ...

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IEEE International Conference on Communications (ICC)

作者： Zabir, Ishmam Swami, Ananthram Hua, Yingbo Department of Electrical and Computer Engineering University of California Riverside CA USA DEVCOM Army Research Laboratory USA

ISBN: (数字)9781538683477

ISBN: (纸本)9781538683477

This paper presents a secure downlink communication system where a transmitter with multiple antennas sends information to multiple single antenna users under ultra reliable and low-latency communication (uRLLC) system requirement. To meet uRLLC requirement and provide secrecy against multi-antenna eavesdropper (Eve), transmitter adopts a special channel training scheme called anti-eavesdropping channel estimation (ANECE) as well as a standard transmit beamforming to send secret information in short blocklength regime. Using ANECE, two or more cooperative full-duplex radio devices obtain their receive channel state information (CSI) with respect to each other while preventing Eve from obtaining a consistent estimate of its receive CSI, which improves the secrecy of subsequent transmission of information between the devices. We derive an expression for the average secrecy throughput (AST) of ANECE assisted transmission. This easy-to-evaluate expression of approximated AST in terms of blocklength and various controllable parameters leads to useful insights to maximize AST under uRLLC requirement. Finally, numerical results are presented and discussed.

关键词： Finite blocklength physical layer security secrecy throughput full-duplex ultra-reliable low-latency communications

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AUTONOMOUS CONTROL MANAGEMENT OF SYNCHRONOUS GENERATORS IN MICROGRID SYSTEM

AUTONOMOUS CONTROL MANAGEMENT OF SYNCHRONOUS GENERATORS IN M...

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2025 International Conference on Energy, Power, Environment, Control and Computing, ICEPECC 2025

作者： Qamar, Hafiz Ghulam Murtza Ashraf, Adil Ahmad, Fareed Riaz, Ayesha Imran, Muhammad Yousaf, Muhammad Zain Khan, Imran School of Electrical Engineering Yanshan University Qinhuangdao066004 China Department of Electrical Electronics and Computer Systems University of Sargodha Pakistan Center for Renewable Energy and Microgrids Huanjiang Laboratory Zhejiang University Zhejiang Zhuji311816 China

ISBN: (纸本)9781837243235

Decentralized excitation control based on local asynchronous clock feedback measurement leads to the problem of decentralized incompatibility of excitation controllers, which reduces the ability of excitation control design to improve the stability of power systems. Therefore, the problem of decentralized compatible excitation control is proposed, and the effect of excitation control on the dynamic characteristics of the system under compatible and incompatible modes is compared and analyzed, and the shortcomings of decentralized incompatible excitation control and the advantages of decentralized compatible excitation control are given. © The Institution of engineering & Technology 2025.

关键词： Decentralized control

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Dynamics of self-hybridized exciton–polaritons in 2D halide perovskites

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Light(Science & Applications) 2024年第1期13卷 13-22页

作者： Surendra B.Anantharaman Jason Lynch Christopher E.Stevens Christopher Munley Chentao Li Jin Hou Hao Zhang Andrew Torma Thomas Darlington Francis Coen Kevin Li Arka Majumdar PJames Schuck Aditya Mohite Hayk Harutyunyan Joshua R.Hendrickson Deep Jariwala Department of Electrical and Systems Engineering University of PennsylvaniaPhiladelphiaPA19104USA KBR Inc. BeavercreekOH45431USA Air Force Research Laboratory Sensors DirectorateWright-Patterson Air Force BaseOH45433USA Department of Physics University of WashingtonSeattleWA98195USA Department of Physics Emory UniversityAtlantaGA30322USA Department of Chemical and Biomolecular Engineering Rice UniversityHoustonTX77005USA Department of Materials Science and Nanoengineering Rice UniversityHoustonTX77005USA Applied Physics Program Smalley‐Curl InstituteRice UniversityHoustonTX77005USA Department of Mechanical Engineering Columbia UniversityNew YorkNY10027USA Department of Electrical and Computer Engineering University of WashingtonSeattleWA98195USA

Excitons,bound electron–hole pairs,in two-dimensional hybrid organic inorganic perovskites(2D HOIPs)are capable of forming hybrid light-matter states known as exciton-polaritons(E–Ps)when the excitonic medium is confined in an optical *** the case of 2D HOIPs,they can self-hybridize into E–Ps at specific thicknesses of the HOIP crystals that form a resonant optical cavity with the ***,the fundamental properties of these self-hybridized E–Ps in 2D HOIPs,including their role in ultrafast energy and/or charge transfer at interfaces,remain ***,we demonstrate that>0.5µm thick 2D HOIP crystals on Au substrates are capable of supporting multiple-orders of self-hybridized E–P *** E–Ps have high Q factors(>100)and modulate the optical dispersion for the crystal to enhance sub-gap absorption and *** varying excitation energy and ultrafast measurements,we also confirm energy transfer from higher energy E–Ps to lower energy E–***,we also demonstrate that E–Ps are capable of charge transport and transfer at *** findings provide new insights into charge and energy transfer in E–Ps opening new opportunities towards their manipulation for polaritonic devices.

关键词： charge polar excitation

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A Triple-mode Wideband Filtering Antenna with Planar Configuration by Combining One SIW cavity and Two Half-mode Patch Resonators

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IEEE Antennas and Wireless Propagation Letters 2025年第6期24卷 1512-1516页

作者： Liu, Qianwen Li, Chengyu Zhu, Lei Tang, Yiming Lu, Wen-Jun Lyu, Yun-Peng Huang, Feng Nanjing University of Posts and Telecommunications College of Telecommunications and Information Engineering Nanjing210003 China State Key Laboratory of Millimeter Waves Nanjing210003 China Nanjing University of Posts and Telecommunications College of Electronic and Optical Engineering Nanjing210023 China University of Macau Department of Electrical and Computer Engineering Faculty of Science and Technology China

In this letter, a triple-mode wideband filtering antenna with planar configuration is presented. The designed antenna has a single substrate layer, which consists of one half-mode circular patch resonator, one half-mode rectangular patch resonator, and one rectangular SIW cavity, and it is fed through the conventional coaxial probe. On the basis of the field analysis, these three types of resonators are compactly integrated without disturbing the resonant properties of their dominant modes. Given this, three resonant modes of half-TM11, half-TM10, and TE11 are well generated, so as to form a widened operating band. Meanwhile, four radiation nulls are produced from far-field radiation cancellation with the increased radiation boundaries. For validation, a prototype antenna with the center frequency of 2.8 GHz is designed and fabricated. The measured results indicate that the proposed antenna achieves an improved fractional bandwidth of 15.7% under three in-band resonances. Besides, four radiation nulls created at 2.32, 3.22, 3.49, and 3.89 GHz in stopband effectively enhance the out-of-band suppression level. Moreover, low profile of 0.037λ0 is also implemented. © 2002-2011 IEEE.

关键词： Microstrip antennas

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A Composite Decomposition Method for Large-Scale Global Optimization

IEEE Transactions on Artificial Intelligence

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IEEE Transactions on Artificial Intelligence 2024年第12期5卷 6304-6319页

作者： Tian, Maojiang Chen, Minyang Du, Wei Tang, Yang Jin, Yaochu Yen, Gary G. Southern University of Science and Technology Department of Computer Science and Engineering Shenzhen518055 China East China University of Science and Technology Key Laboratory of Smart Manufacturing in Energy Chemical Process Ministry of Education Shanghai200237 China East China University of Science and Technology Engineering Research Center of Process System Engineering Ministry of Education Shanghai200237 China Westlake University School of Engineering Hangzhou310030 China Oklahoma State University School of Electrical and Computer Engineering StillwaterOK74048 United States

Cooperative coevolution (CC) algorithms, based on the divide-and-conquer strategy, have emerged as the predominant approach to solving large-scale global optimization (LSGO) problems. The efficiency and accuracy of the grouping stage significantly impact the performance of the optimization process. While the general separability grouping (GSG) method has overcome the limitation of previous differential grouping (DG) methods by enabling the decomposition of nonadditively separable functions, it suffers from high computational complexity. To address this challenge, this article proposes a composite separability grouping (CSG) method, seamlessly integrating DG and GSG into a problem decomposition framework to utilize the strengths of both approaches. CSG introduces a step-by-step decomposition framework that accurately decomposes various problem types using fewer computational resources. By sequentially identifying additively, multiplicatively and generally separable variables, CSG progressively groups nonseparable variables by recursively considering the interactions between each nonseparable variable and the formed nonseparable groups. Furthermore, to enhance the efficiency and accuracy of CSG, we introduce two innovative methods: a multiplicatively separable variable detection method and a nonseparable variable grouping method. These two methods are designed to effectively detect multiplicatively separable variables and efficiently group nonseparable variables, respectively. Extensive experimental results demonstrate that CSG achieves more accurate variable grouping with lower computational complexity compared to GSG and state-of-the-art DG-series designs. © 2024 IEEE.

关键词： Computational efficiency

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