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Restoration model for unbalanced distribution networks considering renewable sources uncertainties

ENERGY REPORTS 2023年 9卷 296-303页

作者： Zhang, Tao Mu, Yunfei Liu, Cong Wang, Xiaoyu Xu, Jing Jia, Lihu Song, Yi Tianjin Univ Key Lab Smart Grid Minist Educ Tianjin 300072 Peoples R China State Grid Tianjin Elect Power Co Tianjin 300010 Peoples R China State Grid Econ & Technol Res Inst Co Ltd Beijing 102209 Peoples R China

Extreme events cause blackouts, resulting in the distribution network being unable to obtain power from the upstream transmission system. In this situation, local distributed resources can be fully utilized to improve system resilience. A distribution service restoration model is proposed in this paper, where three-phase unbalance condition and renewable sources uncertainty have been considered. the network reconfiguration strategy based on traditional tie switch operation is adopted to isolate faults. To cope with uncertainty, the chance-constrained method is introduced to enable renewable sources to participate in restoration, improving load recovery level. the proposed distribution service restoration model is essentially a mixed-integer nonlinear programming problem (MINLP) with probability constraints. To this end, linearization method is introduced to convert original MINLP into a deterministic mixed-integer linear programming problem. Simulation tests based on IEEE 33-bus network is carried out to demonstrate the feasibility of proposed distribution service restoration model. (c) 2022 Published by Elsevier Ltd. this is an open access article under the CC BY-NC-ND license (http://***/licenses/by-nc-nd/4.0/).

关键词： Service restoration Distribution network three-phase unbalanced Uncertainties Mixed-integer linear programming

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ReRobApp: A modular and open-source software framework for robotic rehabilitation and human-robot interaction 9

ReRobApp: A modular and open-source software framework for r...

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9th IEEE RAS/EMBS international conference for Biomedical Robotics and Biomechatronics (BioRob)

作者： Moreno, Jose Y. Escalante, Felix M. Boaventura, thiago Terra, Marco H. Siqueira, Adriano A. G. Sao Carlos Sch Engn Sao Paulo Brazil

ISBN: (数字)9781665458498

ISBN: (纸本)9781665458498

Physical therapy combined with robotic, electrical, and/or multimedia systems is a promising approach for the development of innovative, engaging, and more effective rehabilitation tasks. To foster the development of new rehabilitation strategies and protocols, we propose a fully-customizable and open-source software framework named ReRobApp for robotic rehabilitation and other human-robot interaction applications. ReRobApp allows, e.g., an easy integration of different robotic devices and sensors in the same rehabilitation task, and the development of control strategies based on an block programming intuitive architecture. To showcase the versatility of our proposed framework, we performed case studies using serious games, functional electrical stimulation, electromyography, and two different lower limb robotic devices for ankle rehabilitation in a single multiplayer task with different subjects.

关键词： Protocols Scalability Human-robot interaction Games programming Robot sensing systems Electromyography

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No-Wait Two-Machine Permutation Flow Shop Scheduling Problem with a Single Server and Separable Setup Times to Minimize Total Tardiness 9

No-Wait Two-Machine Permutation Flow Shop Scheduling Problem...

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9th international conference on Control, Decision and Information Technologies, CoDIT 2023

作者： Medouar, Fouad Elidrissi, Abdelhak Benmansour, Rachid Gupta, Jatinder N.D. Rabat Morocco Rabat Business School International University of Rabat Parc Technopolis Rabat Morocco Lamih Umr Cnrs 8201 Valenciennes France College of Business The University of Alabama in Huntsville HuntsvilleAL35899 United States

ISBN: (纸本)9798350311402

this paper addresses a no-wait two-machine permutation flow shop scheduling problem with a single server and separable setup times. Each operation has to be prepared by a single server onto the corresponding machine before processing. It is supposed that setup and processing operations can be separated. the objective function is total tardiness. this important problem arises in many industrial fields but has received little attention in the literature. We present two mixed-integer-linear programming formulations for the studied problem. the first formulation is based on completion-and-starting time variables and the second formulation is based on positional-and-assignment date variables. In order to test the two formulations, 210 instances are generated and solved. It turns out that the MIP model based on assignment-and-positional date variables gives better results compared to the other formulation. © 2023 IEEE.

关键词： Integer programming

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Evaluating Swift-to-Kotlin and Kotlin-to-Swift Transpilers 9

Evaluating Swift-to-Kotlin and Kotlin-to-Swift Transpilers

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9th IEEE/ACM international conference on Mobile Software Engineering and Systems (MobileSoft)

作者： Schneider, Larissa Schultes, Dominik TH Mittelhessen Friedberg Germany

ISBN: (纸本)9781450393010

Unlike most popular mobile cross-platform development frameworks, transpilers promise maintainable code bases that are independent of the continued life of the development tools used. As more and more transpiler projects using the native programming languages Kotlin (Android) and Swift (iOS) were presented in recent years, this paper provides an overview of the language coverage of three representative transpilers, Gryphon (Swift-to-Kotlin), Kotlift (Kotlin-to-Swift), and SequalsK (both directions). For the test cases based on the overview chapters of the Swift and Kotlin documentation, good results were obtained in terms of functionality and readability of the output code for Gryphon and SequalsK. Although some shortcomings are visible in all transpilers, Kotlift is classified as a less mature project.

关键词： Swift Kotlin transpilers transcompilers cross-platform

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Harmonizing decisions in wind farm management to provide a stable energy supply 9

Harmonizing decisions in wind farm management to provide a s...

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9th international conference on Mathematics and Computers in Sciences and Industry, MCSI 2024

作者： Zhang, Zixuan Makowski, Marek Nahorski, Zbigniew Granat, Janusz East China University of Science and Technology Shanghai China Systems Research Institute of the Polish Academy of Sciences Warsaw Poland International Institute for Applied Systems Analysis Laxenburg Austria Warsaw University of Technology Warsaw Poland

ISBN: (纸本)9798350377224

Variable renewable energy generation requires management to provide a stable energy supply. the management consists of making decisions at different time scales;harmonization of such decisions is the main challenge addressed in the paper. the paper presents a mathematical programming model supporting the harmonization of the wind farm decision-making at three different time scales: (1) one-time investment in the energy storage system, (2) annual commitment of constant electricity supply for an industrial partner, and (3) operational (hourly) decisions on energy flows within the plant. the model prototype was tested on the rational configuration of a hydrogen-based energy storage system composed of electrolyzers, hydrogen tanks, and fuel *** model optimization provides the set of decisions maximizing the annual revenue: (1) the number of devices (of different types of each considered kind of device), i.e., the optimal configuration of the storage system;(2) the annually committed constant hourly energy supply, and (3) the operational decisions on energy flows within the wind farm, as well as an optional use of the energy adjusting market for handling temporal energy surplus or deficit. © 2024 IEEE.

关键词： Hydrogen storage

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Implementation of recover FLFBA Algorithm to ELD Problems 9

Implementation of recover FLFBA Algorithm to ELD Problems

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9th international conference on Engineering, Applied Sciences, and Technology, ICEAST 2023

作者： Tiacharoen, Somporn College of Industrial Technology King Mongkut's University of Technology North Bangkok Electronics Engineering Technology Bangkok Thailand

ISBN: (纸本)9798350322040

Recover FLFBA algorithm for Economic Load Dispatch this article presents the performance and reliability of the recover FLFBA algorithm for Economic load dispatch (ELD), which is a complex issue in electrical power systems. the BAT algorithm (BA) is of great interest and is widely applied in electrical power systems. Traditional BAT algorithms developed through computer simulations mimic the foraging behavior of bats and have been found to offer the robustness of a nonlinear optimization solution with advantages in precision and computational time. BAT algorithm has been improved by FLFBA. this article presents the application of recover FLFBA for the ELD of six-unit power plant systems. the optimum generation costs are also considered from recover FLFBA and compared with the existing ELD method, which consists of a 6-generator and AC network. © 2023 IEEE.

关键词： Nonlinear programming

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Large Language Models and Adversarial Reinforcement Learning to Automate PLCs programming: A Preliminary Investigation 9

Large Language Models and Adversarial Reinforcement Learning...

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9th international conference on Control, Decision and Information Technologies, CoDIT 2023

作者： Boudribila, Abderrahmane Chadi, Mohamed-Amine Tajer, Abdelouahed Boulghasoul, Zakaria Cadi Ayyad University National School of Applied Sciences Systems Engineering Applications Laboratory Marrakech Morocco Cadi Ayyad University Faculty of Sciences Semlalia Informatics Systems Engineering Laboratory Marrakech Morocco

ISBN: (纸本)9798350311402

the manual programming of Programmable Logic Controllers (PLCs) is a time-consuming and error-prone task, particularly for complex systems. Researchers have proposed various techniques, such as the modular, decentralized, hierarchical, and distributed approaches, which all fall under the Supervisory Control theory (SCT) whose main goal is to generate a supervisor that ensures that the controller's behavior satisfies the specifications. While these techniques have demonstrated efficiency in systems of low complexity, high-complexity systems and probabilistic ones remain a major challenge. In this paper, we propose a novel pipeline that relies solely on Artificial Intelligence (AI)-techniques, namely, Reinforcement Learning (RL) and Natural Language Processing (NLP) techniques, including Named Entity Recognition (NER) and Large Language Models (LLMs). As a preliminary result, we demonstrate the potential of the proposed pipeline using the recent ChatGPT model by making a sample dataset in this context and generating Structured Text code from specifications presented in a natural language format. Finally, we outline future directions toward a fully automated AI-based PLC programming tool. © 2023 IEEE.

关键词： Reinforcement learning

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Mixed integer nonlinear programming-based warehousing construction and optimization for power grid networking 9

Mixed integer nonlinear programming-based warehousing constr...

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9th international conference on Energy Materials and Electrical Engineering, ICEMEE 2023

作者： Jiang, Changzhi Ji, Zhongjun Zhang, Ziyan Liu, Qiqi Materials Branch of State Grid Liaoning Electric Power Co. Ltd Shenyang110801 China

ISBN: (纸本)9781510672765

Scientifically constructing the power grid material warehousing network can improve the logistics operation efficiency, reduce the inventory cost and improve the efficiency of the whole power grid logistics system. In this regard, this paper studies the optimization of the power material warehousing construction and uses the mixed integer nonlinear programming method to construct the warehouse location model, so as to finally get the optimal theoretical results. then, this paper puts forward the power grid material centralized warehousing network optimization solution, which is also combined with the actual traffic conditions, the logistics response time requirements, the social logistics resources and other practical constraints to evaluate and the proposed model and method. the experiment results indicate that the proposed method outperforms the benchmarks. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

关键词： Power grids Mathematical modeling Data modeling Nonlinear optimization Performance modeling Transportation Network architectures Design and modelling

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Assembly Line Balancing with Collaborative Robots Under Uncertainty of Human Processing Times 9

Assembly Line Balancing with Collaborative Robots Under Unce...

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9th international conference on Control, Decision and Information Technologies, CoDIT 2023

作者： Slama, Ilhem Arbaoui, Taha Nourmohammadi, Amir Fathi, Masood Université de Technologie de Troyes LIST3N 12 rue Marie Curie Troyes10010 France University of Skövde Division of Intelligent Production Systems P.O. Box 408 SkövdeSE-541 28 Sweden Uppsala University Division of Industrial Engineering and Management PO Box 534 Uppsala75121 Sweden

ISBN: (纸本)9798350311402

this paper studies the assembly line balancing problem with collaborative robots in light of recent efforts to implement collaborative robots in industrial production systems under random processing time. A stochastic version with uncertain human processing time is considered for the first time. the issue is defined by the potential for simultaneous human and robot task execution at the same workpiece, either in parallel or in collaboration. We provide stochastic mixed-integer programming based on Monte Carlo sampling approach for the balancing and scheduling of collaborative robot assembly lines for this novel issue type. In order to minimise the line cost including fixed workstation operating costs and resource costs caused by exceeding cycle time, the model determines both the placement of collaborative robots at stations and the distribution of work among humans and robots. © 2023 IEEE.

关键词： Integer programming

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Economic Analysis of Energy Efficiency Programs with Energy Storage Systems on the Optimal Smart Microgrid Energy Management 9

Economic Analysis of Energy Efficiency Programs with Energy ...

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9th international conference on Technology and Energy Management, ICTEM 2024

作者： Agabalaye-Rahvar, Masoud Talebi, Amir Gharehbagh, Hamed Kheirandish Zare, Kazem Gozel, Tuba University of Tabriz Tabriz Faculty of Electrical and Computer Engineering Iran Gebza Technic University Gebze Faculty of Electrical and Computer Engineering Turkey

ISBN: (纸本)9798350329797

Smart microgrids (SMGs) represent an innovative and adaptive approach to energy distribution, integrating advanced technologies and intelligent control systems to enhance energy efficiency and reliability. In these SMGs, energy efficiency programs (EEPs) are initiatives designed to reduce energy consumption and improve overall energy performance in various sectors. Other flexible technology which is called energy storage systems (ESSs) to modify optimal energy management (EM). EM refers to the efficient allocation and utilization of energy resources to meet demand while minimizing operation costs. So, in the context of SMGs, optimal EM plays a critical role in achieving sustainable and cost-effective energy solutions. In this paper, optimal EM coordinated with flexible facilities i.e., electrical and thermal EEPs and also ESSs has been proposed. To this end, the presented novel EEPs have been applied to the demand model in which it was used in the context of optimal EM in SMG framework. Also, as another contribution, sensitivity analysis of the energy efficiency investment rate of EEPs along with considering ESSs on the whole operation cost is accomplished to provide better discernment for stakeholders and/ or decision-makers. the proposed objective function contains multiple distributed generations' costs i.e., fuel, operation, and maintenance costs are modeled as mixed-integer linear programming (MILP) which is solved via CPLEX solver in GAMS software. the simulation results indicate that the whole operation cost is reduced by about 9.2% and 18.2% when utilizing only thermal EEPs with ESSs and electrical EEPs with ESSs, respectively. However, implementing both types of EEPs with ESSs results in a 27.5% decrement in the total operation cost of SMG. © 2024 IEEE.

关键词： Mixed-integer linear programming

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