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IEEE PES Asia-Pacific Power and Energy engineering Conference (APPEEC)

作者： Fares M’Zoughi Jon Lekube Izaskun Garrido Aitor J. Garrido Automatic Control Group - ACG Department of Automatic Control and Systems Engineering Faculty of Engineering of Bilbao - EIB/BIE University of the Basque Country - UPV/EHU Bilbao Spain Biscay Marine Energy Platform BiMEP Armintza Spain

ISBN: (数字)9798350318098

ISBN: (纸本)9798350318104

The present manuscript introduces a classification for power take-off (PTO) diagnosis in Wave Energy Converter (WEC) farms. The suggested strategy has been tested on the Mutriku Multiple Oscillating Water Column-based wave power plant in order to reduce the Levelized Cost of Energy (LCoE) by implementing predictive maintenance strategies. This has been achieved by employing Linear Discriminant Analysis (LDA) to determine the furthermost relevant features from the measured data. Then the Support Vector Machine (SVM) has been implemented as a classification technique to classify the state of the OWC system.

关键词： Support vector machines Vibrations Training Power measurement Wave power Biological system modeling Predictive models

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Tutorial on Congestion control in Multi-Area Transmission Grids via Online Feedback Equilibrium Seeking

arXiv

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arXiv 2023年

作者： Belgioioso, Giuseppe Bolognani, Saverio Pejrani, Giulia Dörfler, Florian Automatic Control Laboratory Department of Electrical Engineering and Information Technology ETH Zurich Physikstrasse 3 Zurich8092 Switzerland

Online feedback optimization (OFO) is an emerging control methodology for real-time optimal steady-state control of complex dynamical systems. This tutorial focuses on the application of OFO for the autonomous operation of large-scale transmission grids, with a specific goal of minimizing renewable generation curtailment and losses while satisfying voltage and current limits. When this control methodology is applied to multi-area transmission grids, where each area independently manages its congestion while being dynamically interconnected with the rest of the grid, a non-cooperative game arises. In this context, OFO must be interpreted as an online feedback equilibrium seeking (FES) scheme. Our analysis incorporates technical tools from game theory and monotone operator theory to evaluate the stability and performance of multi-area grid operation. Through numerical simulations, we illustrate the key challenge of this non-cooperative setting: on the one hand, independent multi-area decisions are suboptimal compared to a centralized control scheme;on the other hand, some areas are heavily penalized by the centralized decision, which may discourage participation in the coordination mechanism. Copyright © 2023, The Authors. All rights reserved.

关键词： Game theory

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UNav-Sim: A Visually Realistic Underwater Robotics Simulator and Synthetic Data-generation Framework

arXiv

引用

arXiv 2023年

作者： Amer, Abdelhakim Álvarez-Tuñón, Olaya Ugurlu, Halil Ibrahim le Fevre Sejersen, Jonas Brodskiy, Yury Kayacan, Erdal The Department of Electrical Engineering and Computer Engineering Aarhus University Aarhus8200 Denmark EIVA a/s Skanderborg8660 Denmark The Automatic Control Group Department of Electrical Engineering and Information Technology Paderborn University Paderborn Germany

Underwater robotic surveys can be costly due to the complex working environment and the need for various sensor modalities. While underwater simulators are essential, many existing simulators lack sufficient rendering quality, restricting their ability to transfer algorithms from simulation to real-world applications. To address this limitation, we introduce UNav-Sim, which, to the best of our knowledge, is the first simulator to incorporate the efficient, high-detail rendering of Unreal Engine 5 (UE5). UNav-Sim is open-source1 and includes an autonomous vision-based navigation stack. By supporting standard robotics tools like ROS, UNav-Sim enables researchers to develop and test algorithms for underwater environments efficiently. © 2023, CC BY.

关键词： Data visualization

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Optimal-state Dynamics Estimation for Physics-based Human Motion Capture from Videos

arXiv

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arXiv 2024年

作者： Le, Cuong Johansson, Viktor Kok, Manon Wandt, Bastian Department of Electrical Engineering Linköping University Sweden Delft Center for Systems and Control Delft University of Technology Netherlands

Human motion capture from monocular videos has made significant progress in recent years. However, modern approaches often produce temporal artifacts, e.g. in form of jittery motion and struggle to achieve smooth and physically plausible motions. Explicitly integrating physics, in form of internal forces and exterior torques, helps alleviating these artifacts. Current state-of-the-art approaches make use of an automatic PD controller to predict torques and reaction forces in order to re-simulate the input kinematics, i.e. the joint angles of a predefined skeleton. However, due to imperfect physical models, these methods often require simplifying assumptions and extensive preprocessing of the input kinematics to achieve good performance. To this end, we propose a novel method to selectively incorporate the physics models with the kinematics observations in an online setting, inspired by a neural Kalman-filtering approach. We develop a control loop as a meta-PD controller to predict internal joint torques and external reaction forces, followed by a physics-based motion simulation. A recurrent neural network is introduced to realize a Kalman filter that attentively balances the kinematics input and simulated motion, resulting in an optimal-state dynamics prediction. We show that this filtering step is crucial to provide an online supervision that helps balancing the shortcoming of the respective input motions, thus being important for not only capturing accurate global motion trajectories but also producing physically plausible human poses. The proposed approach excels in the physics-based human pose estimation task and demonstrates the physical plausibility of the predictive dynamics, compared to state of the art. The code is available on §. © 2024, CC BY.

关键词： Kinematics

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Electromagnetic Parameters of the Ferrite Materials for Electromagnetic Compatibility

Electromagnetic Parameters of the Ferrite Materials for Elec...

引用

2023 Radiation and Scattering of Electromagnetic Waves, RSEMW 2023

作者： Serebryannikov, Sergey V. Serebryannikov, Sergey S. Kovalchuk, Valeriya G. Belevtsev, Andrey M. Epaneshnikova, Irina K. Boldyreff, Anton S. National Research University Moscow Power Engineering Institute Department of Physics and Technologies of Electrical Materials and Components Moscow Russia Moscow Aviation Institute National Research University Department 317 Innovation Management Moscow Russia Institute of Radio Engineering Systems and Control Southern Federal University Taganrog Russia

ISBN: (纸本)9798350322378

Composite materials and coatings in the form of bulk samples based on the ferrite compositions (BaCoZn)Fe203 were researched. The connection between dielectric and magnetic magnetic permeability makes it possible to control their magnetic properties [1] by doping the initial composition, as well as by finishing the compositions. The materials are stable system demonstrating a good absorption degree and electromagnetic radiation reflection of the microwave range. The basis of material selection for manufacturing electromagnetic radiation absorber and brief description of the technology for producing ferrite-based composite materials (BaCoZn)Fe203 are presented in the paper. Research results of the frequency characteristics of the powder material in the frequency range of 1 MHz - 12.5 GHz are received. Recommendations about suggested composite material use as the electromagnetic radiation absorber are defined. It is shown that the composite material has great prospects for screening and absorption of EMR purposes, while the effectiveness of screening depends primarily on the type of ceramic material. © 2023 IEEE.

关键词： Electromagnetic wave emission

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Investigating Optimal Tracking Intervals for Solar Tracking systems to Enhance Efficiency and Performance

Investigating Optimal Tracking Intervals for Solar Tracking ...

引用

2024 IEEE International Conference on Artificial Intelligence and Green Energy, ICAIGE 2024

作者： Dahli, Khadidja Ilinca, Adrian Benallal, Abdellah Cheggaga, Nawel University of Blida 1 Electrical and Remote Control Systems Laboratory LabSET Faculty of Technology Blida Algeria Ecole de Technologie Superieure Department of Mechanical Engineering MontrealQC Canada University of Quebec at Rimouski Wind Energy Laboratory RimouskiQC Canada

ISBN: (纸本)9798350389838

Conventional solar trackers continuously adjust solar panels to optimize energy production, a process that can consume significant energy, potentially surpassing the energy gained. This research examines the most effective tracking interval for solar tracking systems to mitigate this issue. Through testing with intervals ranging from 5 minutes to 5 hours, it was determined that setting tracking intervals no shorter than 1 hour and no longer than 2 hours and 30 minutes is recommended to achieve a balance between energy efficiency and production. Additionally, this study suggests that elevation and azimuth angles should not be tracked using the same time periods;instead, a 2-hour interval for elevation tracking and a 3-hour interval for azimuth angle tracking are advised for optimal performance. The proposed discrete tracking method consumes less than 0.15% of the energy produced, thereby enhancing energy efficiency, reducing unnecessary energy consumption, and improving the overall reliability and lifespan of solar tracking systems. This approach has the potential to significantly impact the future of solar power by enhancing the efficiency and reliability of solar tracking systems, thereby increasing the viability and appeal of solar energy as a primary renewable resource. © 2024 IEEE.

关键词： discrete tracking energy efficiency renewable resource solar power solar trackers

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Modeling of Ship Power systems with Semiconductor Propulsion Complexes and Advanced Power Quality Assurance Tools 19th

Modeling of Ship Power Systems with Semiconductor Propulsion...

引用

19th International Conference on Mathematical Modeling and Simulation of systems, MODS 2024

作者： Zhuk, Dmytro Zhuk, Oleksandr Stepenko, Serhii Chornyi, Oleksii Al-Suod, Mahmoud M. S. Kozlov, Maksym Education and Scientific Institute of Automatics and Electrical Engineering National University of Shipbuilding named after Admiral Makarov Mykolaiv Ukraine Department of Electrical Engineering Information and Measurement Technologies Chernihiv Polytechnic National University Chernihiv Ukraine Department of Automatic Control and Electric Drive Systems Kremenchuk Mykhailo Ostrohradskyi National University Kremenchuk Ukraine Department of Electrical Engineering Al-Ahliyya Amman University Amman19328 Jordan Department of Electrical and Mechatronics Engineering Tafila Technical University Tafila66110 Jordan

ISBN: (纸本)9783031907340

The paper examines possible directions for improving power quality assurance tools by achieving their multifunctionality, controllability, and efficiency, with the aim of enhancing their performance while considering the circuit and operational specifics of integrated ship electrical power systems with semiconductor propulsion complexes. To address the challenges posed by increasing harmonic distortions and reactive power in such systems, one- and two-stage versions of system-controlled filter-compensating devices are proposed and thoroughly investigated. These devices are specifically designed to enable full reactive power compensation while significantly reducing voltage and current harmonic distortions, thus ensuring improved power quality and system reliability in ship electrical power systems with semiconductor propulsion complexes. The proposed modeling approach provides a comprehensive framework for analyzing and comparing the impact of controlled filter-compensating devices on the integral harmonic distortion coefficient of voltage across systems with various types of input rectifiers incorporated within the frequency converters of semiconductor propulsion complexes. Additionally, the study takes into account possible deviations in the ship network frequency, which can influence system performance under real operating conditions. The results demonstrate the effectiveness of the proposed tools in mitigating power quality issues, thereby contributing to the overall stability and efficiency of modern ship electrical power systems. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.

关键词： Reliability analysis

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Robust controller Design for a Boiler-Turbine Unit 31

Robust Controller Design for a Boiler-Turbine Unit

引用

31st International Conference on Cybernetics and Informatics, K and I 2022

作者： Kozakova, Alena Capkova, Romana Puleva, Teofana Slovak University of Technology in Bratislava Faculty of Electrical Engineering and Information Technology Bratislava Slovakia Technical University of Sofia Department of Systems and Control Sofia Bulgaria

ISBN: (数字)9781665487757

ISBN: (纸本)9781665487757

The paper deals with modelling and robust controller design for a boiler-turbine unit in the turbo power plant Maritsa Iztok-2. Based on a simplified first principles nonlinear simulation model and related linearized model in form of a 2x2 transfer matrix with a known structure of individual entries, the resulting plant model is obtained as a set of transfer matrices identified from simulation experiments on the nonlinear model in selected operating points. A robust controller with a decentralized structure is designed using the unified robust decentralized controller design method, the core of which is the equivalent subsystems method (ESM). The controller design results are verified by simulation on the linearized as well as the nonlinear models. © 2022 IEEE.

关键词： Robust control

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Secondary Frequency control of Dual-Port Grid Forming control

Secondary Frequency Control of Dual-Port Grid Forming Contro...

引用

Power Tech Conference

作者： Irina Subotic Dominic Groß Automatic Control Laboratory ETH Zürich Switzerland Department of Electrical and Computer Engineering University of Wisconsin-Madison USA

Grid-forming converters are widely envisioned to be the cornerstone of future converter-dominated power systems. However, standard grid forming (GFM) control strategies assume a fully controllable source with enough headroom behind the converter and only implicitly address renewable generation limits through the converter limits. This can lead to instabilities on time scales of both primary and secondary frequency control and jeopardize the safe and reliable operation of electric power systems. In this work, we leverage the recently proposed dual-port GFM control that maps power imbalances in the grid to the power generation interfaced by the power converter. We show that this mechanism allows for considering and transparently addressing limits of renewable generation (e.g., solar photovoltaics and wind) in primary and secondary frequency control. We illustrate that renewable generation using dual-port GFM control can directly integrate into prevailing secondary control methods such as automatic generation control (AGC). Moreover, we discuss the limitations of standard AGC when one or more areas of a power system are dominated by renewable generation and propose an anti-windup strategy to address the power generation limits of renewables. Finally, we verify our findings in a time-domain, electromagnetic transient (EMT) simulation.

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Testing of SLAM methods in the Matlab environment 19

Testing of SLAM methods in the Matlab environment

引用

19th IEEE World Symposium on Applied Machine Intelligence and Informatics, SAMI 2021

作者： Mihalik, Michal Hrubos, Marian Janota, Ales University of Zilina Faculty of Electrical Engineering and Information Technology Department of Control and Information Systems Zilina Slovakia University of Faculty of Electrical Engineering and Information Technology Department of Control and Information Systems Zilina Slovakia

ISBN: (纸本)9781728180533

This work is focused on establishing TCP/IP connection between SICK LD-OEM 1000 laser scanner and PC. Space measurements will be made using this connection. Then we analyze the data and process it. The data is processed by the Monte Carlo Simultaneous localization and mapping algorithm, which will be used to compile a map of the scanned space. This work is based on MATLAB software environment. © 2021 IEEE.

关键词： MATLAB

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