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Cognitive Computing and Complex Data (ICCD), International Conference on the

作者： Yuexin Liu Weiwei Shou Dongqiang Chen Xuefeng Wang Chu Zhang Smart Energy Division Hangzhou Huachen Power Control Engineering Corporation Limited Hangzhou China Hydraulic Engineering Office Huadong Engineering Corporation Limited Hangzhou China Faculty of Automation Huaiyin Institute of Technology Huai’an China

ISBN: (数字)9798350352894

ISBN: (纸本)9798350352900

With the rapid development of urbanization and industrialization, the problems of water pollution and water scarcity are becoming more and more serious, and climate change and human activities have led to the increasing unpredictability of water levels in river basins. Water level prediction is of great significance in water resources management and disaster prevention and mitigation. In this study, a watershed water level prediction method based on improved Informer is proposed. The parameters of the Informer model are optimized by improving the honey badger optimization algorithm (HBA) to enhance the accuracy of the water level prediction model. Specifically, Chebyshev chaotic mapping initialization, Gaussian variation strategy and lens imaging reverse learning strategy are introduced into the original HBA algorithm to avoid falling into local extremes, which effectively improves the ability of exploring and exploiting in the optimization process of the algorithm parameters. The experimental results show that the model proposed in this paper exhibits higher accuracy and stability in water level prediction, which is of great practical significance and long-term value for water resources management, flood control and disaster warning.

关键词： Accuracy Prevention and mitigation Disasters Imaging Watersheds Predictive models Prediction algorithms Water pollution Water resources Optimization Climate change Water monitoring

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Draining a Water Tank Using Numerical Solution - a Comparative Study

SSRN

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SSRN 2024年

作者： Wendimu, Abebe Alemu Matušů, Radek Gazdoš, František Zerdazi, El Wardi Shaikh, Ibrahim Department of Automation and Control Engineering Faculty of Applied Informatics Tomas Bata University in Zlín Nad Stráněmi 4511 Zlin760 05 Czech Republic

This paper employs MATLAB simulations and various numerical methods to solve ordinary differential equations (ODEs) within a water tank drainage system. The study compares one-step methods with multistep methods to analyze global and local errors in solving differential equations. The study underscores the significance of selecting an appropriate step size in enhancing the accuracy of numerical solutions, particularly in ensuring precise outcomes for water level control applications such as chemical processing operations, bottling industries, and water tanks and reservoirs. The study aims to provide insights into the trade-offs involved in choosing various numerical methods, considering factors such as accuracy, stability, computation time, memory usage, and optimal step sizes when addressing similar problems where accuracy is crucial. © 2024, The Authors. All rights reserved.

关键词： Water tanks

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Event-Triggered Neural Asynchronous control of Nonhomogeneous Markov Jump Power Systems with Hybrid Cyberattacks and Unknown States

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IEEE Transactions on Power Systems 2025年

作者： Luo, Wende Chen, Haiyang Zong, Guangdeng Zhao, Xudong Qufu Normal University School of Engineering Rizhao276826 China Tiangong University School of Control Science and Engineering Tianjin300387 China Nanjing Institute of Technology School of Automation Nanjing211167 China Dalian University of Technology Faculty of Electronic Information and Electrical Engineering Dalian116024 China

This paper studies the observer-based eventtriggered neural asynchronous control problem of nonhomogeneous Markov jump power systems (MJPSs) under hybrid cyberattacks. Both periodic denial-of-service attacks and deception attacks (DAs) are involved because of the openness of networks. An event-triggered mechanism is established to ease the network load. Besides, neural network (NN) approaches are adopted to suppress the adverse effects of DAs on nonhomogeneous MJPSs, and the hidden Markov model (HMM) is employed to capture the asynchronous phenomenon between the system mode and the controller mode. With NN approaches and HMM, an observer-based NN asynchronous controller is designed. By constructing the mode- and parameter-dependent Lyapunov function, sufficient criteria ensuring boundedness in probability for nonhomogeneous MJPSs are obtained. Then, a design algorithm is shown to simultaneously obtain the controller gains, observer gains, and event-triggering weight matrices based on the established conditions. Finally, the single-machine infinitebus power system and 3-machine 6-bus power system are applied to justify the validity of the proposed algorithm. © 1969-2012 IEEE.

关键词： Lyapunov functions

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A Study About the Effects of Educational Robotics Activities on Students’ Self-efficacy Regarding STEM Career Decisions 25th

A Study About the Effects of Educational Robotics Activities...

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25th International Conference on Interactive Collaborative Learning, ICL 2022

作者： Jäggle, Georg Lepuschitz, Wilfried Wachter, Peter Balogh, Richard Tomitsch, Tanja Vincze, Markus ACIN Institute of Automation and Control Vienna University of Technology Vienna Austria PRIA Practical Robotics Institute Austria Vienna Austria CVTI Slovak Centre of Scientific and Technical Information Bratislava Slovakia STU Faculty of Electrical Engineering and Information Technology Slovak University of Technology in Bratislava Bratislava Slovakia

ISBN: (纸本)9783031261893

This study represents an important step to bring innovative teaching practices to schools. The study underlines the effects on increasing the students’ interest in STEM, self-efficacy and STEM career decisions with educational robotics activities. The implementation of robotics equipment in activities is not the only factor that influences the students’ STEM career decisions. Other factors are the didactical design in various settings or the use of different robotics equipment. The study evaluated data from app. 1500 students with questionnaires before and after the activities and identified the different effects on students’ STEM interest and their self-efficacy. Due to the COVID-19 pandemic, which prevented the implementation of on-site activities in schools for a longer period, also online workshops using simulations were carried out and evaluated. Besides, a specific case study was analyzed that applied an innovative hybrid setting with 23 students at a business school in Vienna, Austria. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Students

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Influences of Inhomogeneous Spatial Distribution of Global Oceanic Atmospheric Refractivity on LF Groundwave Propagation Delay

Influences of Inhomogeneous Spatial Distribution of Global O...

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International Applied Computational Electromagnetics Society Symposium (ACES)

作者： Dan-Dan Wang Qi-Zirui Lu Chao Han Yu-Rong Pu Rui-Hong Yang Pei-Rui Bai College of Electronic and Information Engineering Shandong University of Science and Technology Qingdao China Faculty of Automation and Information Engineering Xi'an University of Technology Xi’an China Beijing Aerospace Automatic Control Institute Beijing China

ISBN: (数字)9798350355581

ISBN: (纸本)9798350355598

Atmospheric refractivity affects the propagation delay of low-frequency (LF) groundwave in the realistic ocean environment. In this paper, a parabolic equation (PE) model based on the ERA5 meteorological reanalysis dataset is applied to analyze the influences of inhomogeneous spatial distribution of global oceanic atmospheric refractivity on LF groundwave propagation delay. The global oceanic atmospheric refractivity is derived from the meteorological quantities given by the ERA5 reanalysis dataset. It is found that the global oceanic surface atmospheric refractivity varies systematically with latitude in the range of 290~300 N-unit to 380~400 N-unit, which in turn leads to the variation of LF groundwave propagation delay reaching hundredth nanosecond for 1000 km-long propagation path.

关键词： Sea surface Graphical models Atmospheric modeling Refractive index Nonhomogeneous media Computational electromagnetics Mathematical models Numerical models Propagation delay Distribution functions

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Development of a UAV-based System for Technical Diagnostics of Overhead Power Lines 24

Development of a UAV-based System for Technical Diagnostics ...

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24th International Conference on Computational Problems of Electrical engineering, CPEE 2023

作者： Kozlovskyi, Oleksandr Trushakov, Dmitro Rendzinyak, Serhiy Korud, Vasyl Central Ukrainian National Technical University Department of Electrical Systems and Energy Management Kropyvnytskyi Ukraine Central Ukrainian National Technical University Department of Automation and Control in Technical Systems Kropyvnytskyi Ukraine Ivan Franko National University of Lviv Faculty of Electronics and Computer Technologies Lviv Ukraine Lviv Polytechnic National University Institute of Power Engineering and Control System Lviv Ukraine

ISBN: (纸本)9798350330342

The problems associated with the operation of overhead power lines and ways of improving control over their condition with the help of UAVs are considered. A structural diagram of the system of technical diagnostics of overhead lines based on UAVs was developed, for which the necessary diagnostic parameters were selected according to informative criteria. An analysis of types of UAVs was carried out in order to determine their suitability and efficiency of use for diagnosing the condition of overhead lines. © 2023 IEEE.

关键词： Unmanned aerial vehicles (UAV)

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Fast and Robust Energy Router control in Dynamic Conditions Using Flatness-Based control Theory

Fast and Robust Energy Router Control in Dynamic Conditions ...

引用

Compatibility in Power Electronics (CPE)

作者： Mohammadreza Azizi Oleksandr Husev Carlos Roncero-Clemente Oleksandr Veligorskyi Ryszard Strzelecki Department of Radiotechnic and Embedded Systems Chernihiv Polytechnic National University Chernihiv Ukraine Department of Electric Electronic and Automation Engineering University of Extremadura Badajoz Spain Faculty of Electrical and Control Engineering Gdansk University of Technology Gdansk Poland

ISBN: (数字)9798331515171

ISBN: (纸本)9798331515188

In this paper, flatness-based control theory is developed to enhance the dynamic performance of a multiport energy router. The energy router integrates multiple power sources and sinks, including photovoltaic systems, battery storage, the grid, and various loads. Consequently, any sudden change in a subsystem can induce dynamic conditions across the entire system. The presented method controls the grid-side inverter and regulates the de link voltage. To implement this control approach, the system equations have been established, and it has been demonstrated that the system is differentially flat. Afterward, the controller design has been addressed. The simulation results confirm the proper performance of this method, and the comparisons made validate the high speed and accuracy of the system responses compared to conventional solutions.

关键词： Photovoltaic systems Power engineering Accuracy Simulation Modulation control systems Inverters Mathematical models control theory Voltage control

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Production Scheduling Application Software for Small Medium Enterprises

Production Scheduling Application Software for Small Medium ...

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2023 International Conference on System Science and engineering, ICSSE 2023

作者： Le, Xuan-Thuyen Nguyen, The-Anh-Tu Pham, Ngoc-Hieu Tran, Ngoc-Huy VNU-HCM Innovation Fablab Ho Chi Minh City Viet Nam VNU-HCM Faculty of Electrical & Electronics Engineering Department of Control & Automation Ho Chi Minh City Viet Nam Cao Thang Technical College Department of Mechatronics Ho Chi Minh City Viet Nam

ISBN: (纸本)9798350322941

Derived from the current implementation of the production plan as well as the production schedule, Enterprise Resource Planning software with a built-in production scheduling algorithm helps optimize the uses of resources, reduce production time, increase productivity, and increase customer service levels. In this research, the available management platform (Odoo) with Python as the main programming language is proposed to build a system to support suitable schedule production plans helps shorten processing time and reduce order delay. In addition, the results are shown in detail and can be flexibly modified manually on the Gantt chart. The feasibility of the production scheduling application is shown by the Gantt chart before and after the scheduling. Moreover, the order delay rate has been reduced from 15% to 3.33%. © 2023 IEEE.

关键词： Production control

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Strong Stabilization of the Acrobot at the Down–Up Equilibrium Point ⋆

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IFAC-PapersOnLine 2023年第2期56卷 9167-9172页

作者： Ziyu Wang Xin Xin Yannian Liu School of Automation Southeast University and Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education Nanjing 210096 China Faculty of Computer Science and Systems Engineering Okayama Prefectural University Okayama 719-1197 Japan

In this paper, the strong stabilization of the Acrobot at the Down-Up equilibrium point is addressed, with the first link being downward and the second link being upright. By converting the strong stabilization of the Acrobot at the Down–Up equilibrium point equivalently to the existence and design of a stable stabilizing controller for a fourth-order single-input single-output linear plant with adjustable zeros, a pair of poles on the imaginary axis, and a pair of real poles located symmetrically with respect to the origin, this paper has three main contributions. Firstly, the existence of a stable stabilizing controller for any Acrobot which is linearly controllable at the Down–Up equilibrium point is proved by showing the range of the adjustable zero via adjusting a parameter of the output signal. Secondly, a necessary and sufficient condition on the mechanical parameters of the Acrobot is provided to guarantee the existence of a second-order stable stabilizing controller for the Acrobot around its Down– Up equilibrium point. Thirdly, a direct method is presented to design a second-order stable controller, whose transfer function is preset with three parameters. By utilizing the Liénard– Chipart criterion for a fourth-order polynomial, the necessary and sufficient conditions on these parameters for achieving the strong stabilization are obtained, which are expressed in a cascade form for obtaining these parameters conveniently. A numerical example is presented to validate the effectiveness of the proposed method.

关键词： Robust control strong stabilization underactuated mechanical systems reduced-order controller linear systems

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Design of Mobile Robot Path Planning Algorithm Based on Improved Whale Optimization Algorithm 2022

Design of Mobile Robot Path Planning Algorithm Based on Impr...

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7th International Conference on Multimedia and Image Processing, ICMIP 2022

作者： Liu, Jia Chen, Zhikang Liu, Qiang Shen, Rui Hou, Linlin Zhang, Yunxi School of Automation and Electrical Engineering Tianjin University of Technology and Education China Tianjin Key Laboratory of Information Sensing and Intelligent Control Tianjin University of Technology and Education China Faculty of Manufacturing Zhejiang Quzhou Industrial and Commercial School China School of Automation and Electrical Engineering Tianjin University of Technology and Education China School of Information Science and Engineering Qufu Normal University China

ISBN: (纸本)9781450387408

In this paper, an improved whale optimization algorithm (IWOA) is proposed to solve the problem of independent path planning for mobile robots, which makes mobile robots move along the optimal path. By combining inverse initial coding optimization with Levy flight, The classic whale optimization algorithm (WOA) was improved, the optimization ability of WOA and the solving ability of optimal path point are improved, then the local optimal solutions are maximally avoided. Finally, by comparing the IWOA with the path planning effect diagram of the classical WOA through simulation, the feasibility and efficiency of the IWOA in path planning are verified. © 2022 ACM.

关键词： Optimization

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