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检索条件"机构=Dept. of Automatic Control and Inst. of Industrial and Control Engineering"

共 101 条记录，以下是11-20 订阅

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Averaged Models and Analysis of a Three-Phase CSI as a Dual of a Three-Phase VSI

Averaged Models and Analysis of a Three-Phase CSI as a Dual ...

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IEEE International Conference on industrial Technology (ICIT)

作者： Pau Boira Pujol Arnau Dòria-Cerezo Robert Griñó Inst. of Ind. and Control Engineering (IOC) Universitat Politècnica de Catalunya Barcelona Spain Dept. Electrical Engineering IOC Universitat Politècnica de Catalunya Barcelona Spain Dept. Automatic Control IOC Universitat Politècnica de Catalunya Barcelona Spain

ISBN: (数字)9798350340266

ISBN: (纸本)9798350340273

The averaged model of a current source inverter (CSI) as a voltage source inverter (VSI) dual is presented in this paper. The differential equations defining the CSI are in-troduced in matrix representation for phase-to-phase and phase-to-neutral voltages and expressed using the Clarke and Park transformations. This multiple-input, multiple-output system is studied through the transfer function matrix of the linearized model, and the results are related to original CSI dynamics. Finally, open-loop simulations using Matlab/Simulink and realtime Typhoon-HIL have been carried out to validate the models.

关键词： Analytical models Voltage source inverters Tropical cyclones Transfer functions Oscilloscopes Modulation Switches

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Sliding mode control of a dc-dc dual active bridge using the generalized space-state averaging description

Sliding mode control of a dc-dc dual active bridge using the...

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European control Conference (ECC)

作者： Arnau Dò ria-Cerezo Federico M. Serra Domingo Biel Robert Griñ ó Dept. of Electrical Engineering Inst. of Industrial and Control Engineering Universitat Polit&#x00E8 cnica de Catalunya Barcelona Spain Laboratorio de Control Autom&#x00E1 tico (LCA) Universidad Nacional de San Luis and CONICET Villa Mercedes Argentina Dept. of Electronic Engineering Inst. of Industrial and Control Engineering Universitat Polit&#x00E8 Dept. of Automatic Control Inst. of Industrial and Control Engineering Universitat Polit&#x00E8

ISBN: (数字)9789463842365

ISBN: (纸本)9781665479455

This paper presents a sliding mode control strategy for a dc-dc dual active bridge converter. The controller is based on a truncated model obtained using the generalized state space averaging method that transforms the mixed dc-ac dynamics of the converter into a regulation problem. The proposed controller, that uses a dynamic extension to overcome the structural problem of the non-affine control input, provides good results in terms of performance and robustness. Numerical simulations are included to validate the proposed modelling methodology and the control design.

关键词： Bridges State feedback control design Heuristic algorithms Dynamics Transforms Robustness

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Screening Voltage Disturbance Sources Using Aggregated Data from Power Quality Measurement Systems

Screening Voltage Disturbance Sources Using Aggregated Data ...

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Australasian Universities Power engineering Conference, AUPEC

作者： Krzysztof Chmielowiec Grzegorz Wiczyński Dept. of Power Electronics and Energy Control Systems AGH University of Krakow Krakow Poland Inst. of Electrical Engineering and Electronics Poznań University of Technology Poznań Poland

ISBN: (数字)9798350377941

ISBN: (纸本)9798350377958

In recent years, power quality (PQ) measurement system have become essential for enhancing the performance and reliability of power distribution networks. The number of PQ analyzers inst.lled in these networks has increased significantly. Moreover, PQ measurements are now often integrated into various devices, including balance and industrial energy meters. However, the sheer volume of data generated by these meters makes manual inspection and analysis impractical. This highlights the need for advanced automated tools to manage and interpret these vast datasets. This paper presents an approach that uses aggregated 10-minute PQ measurement data from these meters as a screening method to locate sources of PQ disturbances. By employing both deterministic indicators and machine learning techniques, specifically neural network classification, this approach opens new possibilities for automating the analysis process, enabling network operators to effectively identify and prioritize significant sources of disturbances in distribution networks.

关键词： Meters Performance evaluation Power engineering Voltage measurement Power measurement Power quality Neural networks Manuals Power system reliability Reliability

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Study of the Influence of Rolling Modes on the Operation of Interconnected Electric Drives of a Rolling Mill 4

Study of the Influence of Rolling Modes on the Operation of ...

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4th IEEE KhPI Week on Advanced Technology, KhPI Week 2023

作者： Tytiuk, Valerii Busher, Victor Kalinin, Alexey Chornyi, Oleksii Druzhinin, Valeriy Halushko, Dmytro Department of Electromechanics Kryvyi Rih National University Kryvyi Rih Ukraine Dept. of Electrical Engineering and Electronics National University "Odessa Maritime Academy" Odessa Ukraine Department of Informative computer systems Abylkas Saginov Karaganda Technical University NPJSC Karaganda Kazakhstan Institute of Electromechanics Energy Saving and Automatic Control Systems Kremenchuk Mykhailo Ostrogradskyi National University Kremenchuk Ukraine Department of Power Engineering Karaganda Industrial University NPJSC Temirtau Kazakhstan Dept. of Electrical Engineering Ukrainian State University of Science and Technologies Dnipro Ukraine

ISBN: (纸本)9798350395532

The paper is devoted to study of the influence of rolling modes on the performance of powerful interconnected electric drives of a hot rolling mill under the action of an electromagnetic coupling circuit between the electric drives of the roughing and finishing groups. The action of the electromagnetic coupling circuit manifests itself in the form of the influence of impact loads of synchronous electric drives on the angular velocity of direct current electric drives of the finishing group of the mill. The parameters of the electromagnetic coupling circuit are determined by the power supply scheme and equipment parameters. Values of impact loads applied to a synchronous motor depend on the rolling process parameters, in particular, the chemical composition of the rolled steel and the temperature of the ingot. The paper presents the results of calculating the rolling power for various rolling mode parameters. Using mathematical modeling in Simulink, numerical estimates of the influence of rolling modes on the magnitude of the voltage drop in the power supply unit and the drop in the angular velocity of the electric drive of the finishing group were obtained on the example of a wide-strip hot rolling mill 1700 of ArcelorMittal Temirtau JSC. © 2023 IEEE.

关键词： Hot rolling

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A Machine Learning Approach to Classify Network Traffic 13

A Machine Learning Approach to Classify Network Traffic

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13th International Conference on Electronics, Computers and Artificial Intelligence, ECAI 2021

作者： Jadav, Nilesh Dutta, Nitul Sarma, Hiren Kumar Deva Pricop, Emil Tanwar, Supeep Marwadi University Dept. of Computer Engineering Rajkot India Sikkim Manipal Inst. of Technology Dept. of Information Technology Majitar India Petroleum-Gas University of Ploiesti Automatic Control Comp and Elect. Dept Ploiesti Romania Nirma University Dept. of Computer Science and Eng. Ahmedabad India

ISBN: (纸本)9781665425346

There is a significant increase of cloud and networking-enabled applications, leading to an exponential growth of network traffic. Monitoring all these applications and their generated traffic is a challenging and complex task, especially in regard to anonymous networks used to access the Dark Web or darknet. Manual investigation of the network traffic to determine patterns of malicious activity is a very difficult task and the results might not be satisfactory. The usage of machine learning is the most viable approach for the classification of the traffic as normal or malign activity. This paper analyzes CIC-Darknet 2020 dataset to classify the benign and darknet traffic. Before applying any classifiers to our dataset, we have balanced it using Synthetic Minority Oversampling Technique (SMOTE). We have applied PCA to reduce dimensionality, furthermore, ensemble techniques, logistic classifiers, tree-classifiers, and Naive Bayes have been compared and evaluated thoroughly with various evaluation metrics Accuracy, Precision, Recall, F1-Score, and Mathew's Correlation Coefficient (MCC). © 2021 IEEE.

关键词： Machine learning

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Modeling and Analysis of Electric Field Variation across Insulation System of a MV power Cable 3

Modeling and Analysis of Electric Field Variation across Ins...

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3rd International Conference on Electrical, Communication and Computer engineering, ICECCE 2021

作者： Musa, Umar Mati, Abdullahi A. Mas'ud, Abdullahi A. Shehu, Gaddafi S. Albarracin-Sanchez, Ricardo Rodriguez-Serna, Johnatan M. Ahmadu Bello University Dept. of Electrical Engineering Zaria Nigeria Center for Energy Research Training Ahmadu Bello University Zaria Nigeria Jubail Industrial College Dept. of Electrical and Electronic Engineering Jubail Saudi Arabia School of Industrial Design and Engineering Universidad Politécnica de Madrid Dept. of Electrical and Electronic Engineering Automatic Control and Applied Physics Spain

ISBN: (纸本)9781665438971

Cross-linked polyethylene (XLPE) has found wide application in high-and medium-voltage power distribution and transmission systems. Owing to its excellent properties, XLPE is highly deployed for insulation purposes in underground power cables. The presence of defects across the insulation systems serves as field enhancement and partial discharge initiation sites that may lead to equipment failure. In this paper, the finite element modeling of electric field variation across the insulation system of an XLPE medium-voltage (MV) power cable has been presented. A cross-section of the cable sector has been modeled in COMSOL without and with a single spherical cavity. Electric field strength analyses are performed for the healthy and defected cable, and their results are compared. The simulation results showed that the presence of the cavity has risen the electric field strength magnitude by 27.1 % as compared to the original value (without cavity). © 2021 IEEE.

关键词： Partial discharges

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Study of the Shock Loads Effect on the Operation of Multi-Motor Electric Drives of a Rolling Mill with a Second-order Elastic Coupling 5

Study of the Shock Loads Effect on the Operation of Multi-Mo...

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5th IEEE International Conference on Modern Electrical and Energy System, MEES 2023

作者： Tytiuk, Valerii Kalinin, Alexey Druzhinin, Valeriy Kuznetsov, Vitalii Chornyi, Oleksii Busher, Victor Kryvyi Rih National University Department of Electromechanics Kryvyi Rih Ukraine Abylkas Saginov Karaganda Technical University Npjsc Department of Informative Computer Systems Karaganda Kazakhstan Karaganda Industrial University Npjsc Department of Power Engineering Temirtau Kazakhstan Ukrainian State University of Science and Technologies Department of the Electrical Engineering Dnipro Ukraine National University Institute of Electromechanics Energy Saving and Automatic Control Systems Kremenchuk Mykhailo Ostrogradskyi Kremenchuk Ukraine National University "odessa Maritime Academy" Dept. of Electrical Engineering and Electronics Odessa Ukraine

ISBN: (纸本)9798350359787

This paper presents a study for optimizing a hot rolling mill. The paper is devoted to the study of ways to reduce the effect of shock loads of synchronous electric drives of the roughing mill group on the relative lengthening of the metal strip in the inter-stand gap of the rolling stands of the finishing mill group. The elasticity of the metal strip in the inter-stand gap of the rolling mill has a significant impact on the movement of intercoupled multi-motor electric drives of the finishing mill group. Another crucial route of exposure that influences the motion of the electric drives within the finishing mill group involves the electromagnetic connection between the drives in the roughing and finishing mill groups. The impact of the electromagnetically connected circuits is evident through the effect of shock loads from synchronous electric drives on the angular velocity of the direct current electric drives within the finishing mill group. The characteristics of the electromagnetic communication circuit are established by the power grid arrangement and equipment specifications. To assess the quality of work of electric drives of the finishing mill group, it is proposed to use the relative lengthening of the metal strip in the inter-stand gap, which is an important indirect indicator of the quality of rolling. The mathematical model of a hot rolling mill that takes into account both the elasticity of the metal strip that connects the DC electric drives of the finishing group, and the electromagnetic coupling circuit that takes into account the impact loads of synchronous electric drives of the roughing group on the example of the mill 1700 of ArcelorMittal Temirtau JSC was proposed in this paper. Using the mathematical model developed in Simulink software using the methods of planning the experiment, regression models were obtained to establish the dependence of the parameters of overexcitation of a synchronous motor on the magnitude of the voltage sag in the no

关键词： Electric loads

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A Computer Vision-Based Solution for Assessing Prosthetic Leg Length Discrepancy

A Computer Vision-Based Solution for Assessing Prosthetic Le...

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E-Health and Bioengineering Conference (EHB)

作者： Otilia Zvorişteanu Dimitrie-Cristian Fodor Vasile-Ion Manta Neculai-Eugen Seghedin Ştefan-Daniel Achirei Dragoş-Florin Chitariu Dept. of Computer Science and Engineering Faculty of Automatic Control and Computer Engineering “Gheorghe Asachi” Technical University of Iaşi Iaşi Romania “Dr. Iacob Czihac” Military Emergency Clinical Hospital Iaşi Dept. of Digital Production Systems Faculty of Machine Manufacturing and Industrial Management “Gheorghe Asachi” Technical University of Iaşi Iaşi Romania

ISBN: (数字)9798331532147

ISBN: (纸本)9798331532154

This paper presents a novel computer vision-based approach for assessing leg length discrepancy (LLD) in individuals with prosthetic limbs. The proposed solution uses image processing techniques to detect markers placed on the patient's knee, prosthesis, and a reference wall, allowing for precise measurement of limb alignment. Through a comparative analysis of the initial reference position, set by a specialist, and the current limb positioning, the algorithm identifies discrepancies in leg length. The system employs a non-invasive methodology, utilizing an IP camera to capture images and communicate them via Wi-Fi to a computing unit for further analysis. Experimental validation, conducted on simulated LLDs ranging from 1mm to 10mm, demonstrates the system's high sensitivity and accuracy in detecting subtle changes in limb alignment. This approach offers a scalable, automated alternative to traditional manual methods, improving both the reliability and ease of prosthetic adjustments.

关键词： Legged locomotion Wireless communication Limbs Prosthetic limbs Current measurement Manuals Cameras Reliability IP networks Wireless fidelity

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Mobile Application for Visualizing the Measurements

Mobile Application for Visualizing the Measurements

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International Conference on Modern Electrical and Energy Systems (MEES)

作者： Simona Kirešová Milan Guzan Branislav Sobota Viacheslav Melnykov Rostyslav Yatsiuk Bohdan Peryvertailo Dept. of Theoretical and Industrial Electrical Engineering Technical University of Košice Košice Slovakia Dept. of Computers and Informatics Technical University of Košice Košice Slovakia Dept. of Systems of Automatic Control and Electric Drive Kremenchuk Mykhailo Ostrohradskyi National University Kremenchuk Ukraine Dept. of Computer Engineering and Electronics Kremenchuk Mykhailo Ostrohradskyi National University Kremenchuk Ukraine

This paper deals with the design of an Android mobile application and visualization of the measured values of particulate matter and meteorological factors from the measurement stations. The application can in principle be effectively used in any field of data visualization. The architecture of the mobile application, the security, the use of AWS services to access the data in the InfluxDB databases, as well as the user interface and graphical visualizations of the measured data are described and illustrated. The application is user tested and the paper documents their first experiences using the mobile application.

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Mathematical Model of a Three-Phase Induction Motor with Asymmetrical Twelve-Zone Stator Windings 4

Mathematical Model of a Three-Phase Induction Motor with Asy...

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4th IEEE International Conference on Modern Electrical and Energy System, MEES 2022

作者： Tytiuk, Valerii Chornyi, Oleksii Busher, Victor Siverskaya, Tatyana Baranovskaya, Mila Kuznetsov, Vitalii Njsc 'Karaganda Industrial University' Department 'Artificial Intelligence Technologies' Temirtau Kazakhstan Institute of Electromechanics Energy Saving and Automatic Control Systems Kremenchuk Mykhailo Ostrohradskyi National University Kremenchuk Ukraine National University 'Odessa Maritime Academy' Dept. of Electrical Engineering and Electronics Odessa Ukraine Njsc 'Karaganda Industrial University' Department 'Power Engineering' Temirtau Kazakhstan Kryvyi Rih National University Department of Electromechanics Kryvyi Rih Ukraine Ukrainian State University of Science and Technologies Department of the Electrical Engineering Dnipro Ukraine

ISBN: (纸本)9798350346831

The paper proposes a mathematical model of a three-phase induction motor with an asymmetrical twelve-zone winding of stator with parallel connection of subwindings. The mathematical model was developed using the theory of generalized electromechanical converter and contains equations of electrical equilibrium of six stator windings and three rotor windings. The equations for calculating the electromagnetic moment and the equations of motion of the induction motor with an asymmetrical twelve-zone stator winding rotor were obtained. The developed mathematical model in the form of cell-matrix equations has been implemented in MATLAB/Simulink. © 2022 IEEE.

关键词： Induction motors

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