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2023 International Conference on System Science and engineering, ICSSE 2023

作者： Vu, Van-Phong Nguyen, Tu-Gia-Thinh Nguyen, Xuan-Sang Le, Van-Tung Ngo, Van-Thuyen Pham, Duc-Hung Uyen, Hoang Kim Ho Chi Minh City University of Technology and Education Department of Automatic Control Ho Chi Minh city Viet Nam Hung Yen University of Technology and Education Faculty of Electrical and Electronic Engineering Hung Yen Viet Nam Da Nang University of Science and Technology Faculty of Electronics and Telecommunication Engineering Da Nang Viet Nam

ISBN: (纸本)9798350322941

In this paper, the problems related to cooperative control for the multiple mobile robot system (MMRS) is presented. The LIDAR sensor is employed to obtain the 2D map of the indoor space. The formation control and the leader-following algorithm are applied to control the MMRS moving in a specific formation. Additionally, this paper considers the scenario that the MMRS has to move to several targets in the indoor space with many obstacles. Therefore, the indoor travelling salesman problem-based Ant Colony Optimization (ACO) is studied in this work to determine the optimal moving path of the MMRS. To prove the effectiveness and merit of the proposed methods, the simulation results are provided in this article. © 2023 IEEE.

关键词： Ant colony optimization

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A chattering free consensus controller for multiple Lur'e systems with a non-autonomous leader and directed switching topology

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Science China(Technological Sciences) 2023年第4期66卷 1110-1118页

作者： WANG PeiJun YU WenWu WEN GuangHui YU XingHuo HUANG TingWen School of Mathematics and Statistics Anhui Normal UniversityWuhu 241000China Anhui Province Engineering Laboratory of Intelligent Robot's Information Fusion and Control Anhui Normal UniversityWuhu 241000China School of Mathematics Frontiers Science Center for Mobile Information Communication and SecuritySoutheast UniversityNanjing 210096China Purple Mountain Laboratories Nanjing 21111lChina Department of Electrical Engineering Nantong UniversityNantong 226019China Department of Systems Science School of MathematicsSoutheast UniversityNanjing 210096China School of Engineering RMIT UniversityMelbourne VIC 3001Australia Science Program Texas A&M University at QatarDoha 23874Qatar

Achieving asymptotical cooperative goal for multi-agent systems(MASs)with non-autonomous leaders(i.e.,leaders with nonzero inputs)is a critical but challenging *** approach is to use discontinuous controllers which may cause chattering phenomenon in practical *** to achieve the asymptotical goal via a chattering free cooperative controller remains to be open so *** this paper,an adaptive continuous controller is designed to achieve zero error consensus tracking in multiple Lur’e systems with a non-autonomous leader under directed switching ***,an unknown input observer(UIO)based on relative outputs is given to estimate the relative full *** an adaptive continuous controller is designed by introducing a decay function which remains positive into the term that plays the role of eliminating the impacts of leader’s nonzero ***,by using multiple Lyapunov functions(MLFs)technique,it is proven that zero error consensus tracking can be achieved if the average dwell time(ADT)is greater than a positive ***,theoretical result is verified by performing simulations on Chua’s *** with existing work,the proposed controller can not only achieve asymptotical consensus,but also is chattering free.

关键词： multi-agent system consensus chattering free non-autonomous leader directed switching topology

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Optimal Multivariable control Design based on a Fuzzy Model for an Unmanned Aerial Vehicle

IAENG International Journal of Computer Science

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IAENG International Journal of Computer Science 2021年第2期48卷 1-6页

作者： López-Rivera, M. Cortés-Villada, A.C. Giraldo, E. Mechatronic Engineer researcher at the Research Group in Automatic Control Universidad Tecnológica de Pereira Pereira Colombia Electrical Engineering student The Universidad Tecnológica de Pereira A full professor at the Department of Electrical Engineering Universidad Tecnológica de Pereira Pereira Colombia

This article presents an optimal tuning method for coupled Fuzzy multivariable controllers. The procedure is based on optimization using genetic algorithms of a square error cost function. The controllers tuning method can be applied to the design of systems required to meet design criteria, taking into account the system's inherent dynamics. The proposed method is evaluated on a two-degree-of-freedom scale helicopter that models a scale unmanned aerial vehicle system using the quadratic error as a cost function. The proposed optimal Fuzzy controller's performance is compared with a MIMO PID controller under two distinct structures: coupled and decoupled, considering the same optimal tuning method with genetic algorithms. Also, the system is validated by using a feedback state-space controller with a coupled structure. © 2021. All Rights Reserved.

关键词： Fuzzy control

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A Machine-Learning Approach for the Development of a FOWT Model Integrated with Four OWCs

A Machine-Learning Approach for the Development of a FOWT Mo...

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Circuits, systems, Communications and Computers (CSCC), International Conference on

作者： Irfan Ahmad Fares Mzoughi Payam Aboutalebi Izaskun Garrido Aitor Garrido Automatic Control Group-ACG Department of Automatic Control and Systems Engineering University of the Basque Country UPV/EHU Bilbao Spain

ISBN: (纸本)9781665481878

The wind-wave excitations cause structural vibrations on the Floating Offshore Wind Turbines (FOWT) pressing the power generation efficiency and reducing the life expectancy. In particular, tower-top displacement and barge-type platform pitch dynamics are extremely sensitive to wind speed and wave elevation to the point that may even lead to structural instability in extreme conditions. Having into account that computational techniques such as Artificial Neural Networks (ANNs) are widely used in artificial intelligence because of their strong predicting and forecasting capabilities, the aim of this article is to create a deep-layer ANN model that incorporates Oscillating Water Columns (OWCs) into the barge platform. This ANN model enables to address stability issues of the hybrid floating offshore wind platform. The proposed control-oriented model has been successfully validated to achieve adequate dynamic behavior and structural performance using FAST.

关键词： Vibrations Computational modeling Wind speed Artificial neural networks Machine learning Predictive models Aerodynamics

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EMI Conducted Emission on Synchronization Conditions for FPGA-Based Multidrives Network

EMI Conducted Emission on Synchronization Conditions for FPG...

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2023 International Symposium on Electromagnetic Compatibility - EMC Europe, EMC Europe 2023

作者： Nascimento, Douglas Smolenski, Robert Lezynski, Piotr Przybylski, Michal Moonen, Niek University of Zielona Góra University of Twente Hitachi Energy Kraków Poland University of Zielona Góra Institute of Automatic Control Electronics and Electrical Engineering Zielona Góra Poland University of Twente Department of Power Electronics and Electromagnetic Compatibility Enschede Netherlands

ISBN: (纸本)9798350324006

The power converters are essential for the development of renewable energy generation, conversion processes and energy storage systems. Besides, some applications require synchronization between converters e.g., industrial use as AC drives for motors, pumps, fans, drills and wheels. Thus, this paper presents a theoretical study with experimental validation of FPGA frequency and time synchronization conditions and its impact on conducted emissions (CE) from multidrives operations. For EMI assessment over those conditions, a LabVIEW-FPGA-based cyber-physical testbench was used to control the DC/AC converters using SPWM. It shows how the synchronization conditions impact the EMC in multiconverters systems over the EMI emissions and also highlights measures to mitigate the peak levels. The findings demonstrate that, depending on the condition, it reduces up to 29 dB of ground current peaks and 8 dB in EMI level, which may improve the EMC in DC distributed microgrids. © 2023 IEEE.

关键词： Field programmable gate arrays (FPGA)

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Preventing Frequency Instability Using Large-Scale Photovoltaic Resources

Preventing Frequency Instability Using Large-Scale Photovolt...

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Technology and Energy Management (ICTEM), International Conference on

作者： Siavash Yari Hamid Khoshkhoo Kumars Rouzbehi S. M. Ale Emran Faculty of Electrical Engineering Sahand University of Technology Sahand Iran Department of System Engineering and Automatic Control University of Seville Seville Spain Faculty of Engineering University of Quebec at Chicoutimi (UQAC)

Various control methods have been presented to prevent the occurrence of instability in power systems, among which, it seems that methods based on the special protection system (SPS) are more effective and efficient than other ones. In this article, a SPS using the capabilities of large-scale photovoltaic power plants (LSPVPPs) is presented to prevent frequency increase and instability in power systems. According to the presented algorithm, when frequency increases, the proposed SPS uses the ability of photovoltaic power plants to quickly change their generation powers based on the operating point and frequency changes to prevent frequency instability. To confirm the proposal, LSPVPPs along with their controllers are modeled in the DSL environment of DIgSILENT PowerFactory software. The proposed SPS is implemented and tested on the IEEE 39-bus test system and the results of dynamic simulations show that this SPS prevents frequency instability in different conditions by taking timely measures.

关键词： Photovoltaic systems Time-frequency analysis Power system dynamics Software algorithms Power system stability Stability analysis Software

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Fractional-Order control of a Wind Turbine Using Manta Ray Foraging Optimization

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Computers, Materials & Continua 2021年第7期68卷 185-199页

作者： Hegazy Rezk Mohammed Mazen Alhato Mohemmed Alhaider Soufiene Bouallègue College of Engineering at Wadi Addawaser Prince Sattam Bin Abdulaziz UniversityAl-Kharj11911Saudi Arabia Department of Electrical Engineering Faculty of EngineeringMinia University61517MiniaEgypt Research Laboratory in Automatic Control(LARA) National Engineering School of Tunis(ENIT)University of TunisTunis1002Tunisia High Institute of Industrial Systems of Gabès University of GabèsGabès6011Tunisia

In this research paper,an improved strategy to enhance the performance of the DC-link voltage loop regulation in a Doubly Fed Induction Generator(DFIG)based wind energy system has been *** proposed strategy used the robust Fractional-Order(FO)Proportional-Integral(PI)control *** FOPI control contains a non-integer order which is preferred over the integer-order control owing to its *** offers extra flexibility in design and demonstrates superior outcomes such as high robustness and *** optimal gains of the FOPI controller have been determined using a recent Manta Ray Foraging Optimization(MRFO)*** the optimization process,the FOPI controller’s parameters are assigned to be the decision variables whereas the objective function is the error racking that to be *** prove the superiority of the MRFO algorithm,an empirical comparison study with the homologous particle swarm optimization and genetic algorithm is *** obtained results proved the superiority of the introduced strategy in tracking and control performances against various conditions such as voltage dips and wind speed variation.

关键词： Renewable energy modeling wind turbine doubly fed induction generator fractional order control manta ray foraging optimization

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Novel Bandpass RLC-Filter 30

Novel Bandpass RLC-Filter

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30th Telecommunications Forum, TELFOR 2022

作者： Denisenko, Darya Prokopenko, Nikolay Butyrlagin, Nikolay Ivanov, Yuri Don State Technical University Department of scientific research Southern Federal University Department of Automatic Control Systems Rostov-on-Don Russia Don State Technical University Department of Information Systems and Radio Engineering Institute for Design Problems in Microelectronics of RAS Zelenograd Rostov-on-Don Russia Institute for Design Problems in Microelectronics of RAS Zelenograd Rostov-on-Don Russia Southern Federal University Department of Automatic Control Systems Rostov-on-Don Russia

ISBN: (数字)9781665472739

ISBN: (纸本)9781665472739

A new architecture of the band-pass RLC filter (RLC-PBF) is considered, in which independent adjustment of the pole frequency, pole quality factor and transmission coefficient is implemented with different resistors at constant values of the capacitance of the frequency-setting capacitor and the frequency-setting inductance. The results of the RLC-PBF simulation in the Micro-Cap environment are discussed, which confirm these properties. The basic mathematical expressions for the transfer function of the RLC-PBF and the parameters of its amplitude-frequency characteristic are obtained. The proposed RLC-PBF circuitry is recommended for adaptive signal filtering in radio engineering and measuring systems. Due to the appropriate choice of parameters of active and passive elements, the operation of the considered RLC-PBF is ensured both at low and at high frequencies. © 2022 IEEE.

关键词： Bandpass filters

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Robust co-design framework for buildings operated by predictive control

arXiv

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arXiv 2024年

作者： Falugi, P. O’Dwyer, E. Zagorowska, M.A. Kerrigan, E.C. Nie, Y. Strbac, G. Shah, N. Engineering and Construction Department University of East London London United Kingdom Department of Chemical Engineering Imperial College London London United Kingdom Mechanical Engineering Department Delft University of Technology Delft Netherlands Department of Aeronautics Imperial College London London United Kingdom Department of Electrical and Electronic Engineering Imperial College London London United Kingdom Department of Automatic Control and Systems Engineering University of Sheffield United Kingdom

Cost-effective decarbonisation of the built environment is a stepping stone to achieving net-zero carbon emissions since buildings are globally responsible for more than a quarter of global energy-related CO2 emissions. Improving energy utilization and decreasing costs naturally requires considering multiple domain-specific performance criteria. The resulting problem is often computationally infeasible. The paper proposes an approach based on decomposition and selection of significant operating conditions to achieve a formulation with reduced computational complexity. We present a robust framework to optimise the physical design, the controller, and the operation of residential buildings in an integrated fashion, considering external weather conditions and time-varying electricity prices. The framework explicitly includes operational constraints and increases the utilization of the energy generated by intermittent resources. A case study illustrates the potential of co-design in enhancing the reliability, flexibility and self-sufficiency of a system operating under different conditions. Specifically, numerical results demonstrate reductions in costs up to 30% compared to a deterministic formulation. Furthermore, the proposed approach achieves a computational time reduction at least 10 times lower compared to the original problem with a deterioration in the performance of only 0.6%. © 2024, CC BY.

关键词： Zero-carbon

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Take home laboratories enhancing a threshold approach to assessment

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IFAC-PapersOnLine 2022年第17期55卷 224-229页

作者： J.A. Rossiter Department of Automatic Control and Systems Engineering University of Sheffield Sheffield S1 3JD UK

This paper has a dual focus of threshold assessment (Rossiter, 2020) and take home laboratories (Taylor, Jones and Eastwood, 2013). One could argue that it is clear that take home laboratories are a good idea, but this paper focuses on effective integration into module delivery and assessment in order to maximise the value to the students. It is shown how using in a threshold assessment strategy can significantly enhance the efficacy of the take home laboratory usage.

关键词： Interaction within a lecture laboratories quality assurance efficient assessment independent learning student stress

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