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MPPT Based Artificial Neural Network Employing FOPI To Harvest The Maximum Power From A PV System Under Changing Irradiance of The City Ain El Ibel, Djelfa

MPPT Based Artificial Neural Network Employing FOPI To Harve...

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Renewable Solutions for Ecosystems: Towards a Sustainable Energy Transition (ICRSEtoSET), International Conference on

作者： Okba Fergani Raihane Mechgoug Nacira Tkouti Kouider Laroussi Ahmed Bouzid Younes Belhadjer Laboratory of Identification Commande Control and Communication (LI3CUB) University Mohamed Khider Biskra Biskra Algeria Dept. Electrical Engineering University Mohamed Khider Biskra Biskra Algeria Laboratory of The Applied and Automation and Industrial Diagnostic University Ziane Achour Djelfa Djelfa Algeria Institute of Automation and Infocommunication University of Miskolc Hungary Miskolc Hungary

ISBN: (数字)9798350346336

ISBN: (纸本)9798350346343

Solar energy is a renewable energy source that has gained widespread use and efficiency, particularly in developing countries such as Algeria where solar irradiation is abundant. Photovoltaic (PV) systems have proven to be effective, leading to the implementation of numerous PV farms across Algeria, such as the PV farm in Ain El Ibel Djelfa. However, many of these systems rely on classical techniques like P&O and INC based MPPT, which are insufficient for varying weather conditions and can result in significant power loss. To address this issue, this study proposes a novel approach that utilizes an artificial neural network (ANN) with a fractional order PI controller to extract the maximum power from the PV panel. The proposed technique was tested and simulated using MATLAB/SIMULINK, with irradiance data obtained from the NASA Power, Prediction of Worldwide Energy Resources website for the city of Ain Ibel in August 2022. The results were compared to previous techniques and indicate that the ANN with fractional order PI controller approach yields better outcomes.

关键词： Photovoltaic systems Renewable energy sources Radiation effects PI control System performance Urban areas NASA

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Optical Data Center Implementation within Data Center Networks Context Based on Mininet

Optical Data Center Implementation within Data Center Networ...

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Electrical, Energy, and Artificial Intelligence (EICEEAI), International engineering Conference on

作者： Esraa Ali Abdulmahdi Adnan Hussein Ali Raed Khalid Ibrahim Ali Al-Askery Hayder Jasim Alhamdane Amal Ibrahim Mahmood Student at Dept. of Computer Engineering Techniques Electrical Engineering College Middle Technical University Baghdad Iraq Electrical Techniques Department Institute of Technology Middle Technical University Baghdad Iraq Department of Medical Instruments Engineering Techniques Al-Farahidi University Baghdad Iraq Department of Control and Automation Technical Engineering Electrical Engineering College Middle Technical University Baghdad Iraq College of Applied Arts Middle Technical University Baghdad Iraq Dept. of Computer Engineering Techniques Electrical Engineering College Middle Technical University Baghdad Iraq

ISBN: (数字)9798350373363

ISBN: (纸本)9798350373370

The technology of reconfigurable optical networks (RONs) is growing to be a promising solution to effectively cater to the rapidly increasing traffic generated by the digital society. Optical technology emerges as a viable alternative because to its capacity to offer a substantial bandwidth, little latency, and enhanced overall performance. Nevertheless, it is imperative to effectively manage the physical resources comprising a data center. This study provides an experimental demonstration of the RONs, which is enhanced by a control plane. The implementation relies on the monitoring of real-time network statistics. This enables the execution of various activities, including as network slice provisioning and reconfiguration, assignment of packet priority classes, and dynamic operations. These actions are performed to ensure the attainment of the desired Quality of Service level. The experimental results show the successfully implementation of RONs using Mininet Emulator and sFlow traffic monitoring technology. The results approve that optical datacenter has minimum delay with low OSNR even with long distance and fast switching time.

关键词： Data centers Optical switches Optical fiber networks Traffic control Real-time systems Service-oriented architecture Monitoring

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Smart Substation Performance Evaluation Method Based on Network Traffic

Smart Substation Performance Evaluation Method Based on Netw...

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International Conference on Power Electronics Systems and Applications (ICPESA)

作者： Changxin Yang Huiyu Liang Ruiwen He Liu Han Zhihong Xiao Teng Feng Dept. of Electrical Engineering Guangdong University of Technology Guangzhou China Automation and Control Design Research Center State Grid Economic and Technological Research Institute Co. Ltd. Beijing China

ISBN: (纸本)9781665486699

Smart substation is an important part in the cyber-physical power system, whose information flow in the secondary system possesses the key function of reflecting and regulating the energy flow in the primary system. In order to achieve a further refined characterization of network traffic, information source models of devices at the bay level and process level are constructed. On this basis, a set of mathematical models about network injection traffic considering different substation operating conditions is formed by the source models of all the devices connected to the process level network. And a substation performance evaluation method based on process level network traffic is proposed, which enables the determination of the operating conditions experienced by a substation in a certain time period based on the injection traffic, providing a new method for real-time monitoring of the operating performance of smart substations.

关键词： Performance evaluation Substations Telecommunication traffic Predictive models Mathematical models Real-time systems Power electronics

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Evaluation Method of Business Matching Degree in Autonomous and controllable New Generation Smart Substation

Evaluation Method of Business Matching Degree in Autonomous ...

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International Conference on Power Electronics Systems and Applications (ICPESA)

作者： Long Long Baoren Zhang Ruiwen He Liu Han Zhihong Xiao Teng Feng Dept. of Electrical Engineering Guangdong University of Technology Guangzhou China Automation and Control Design Research Center State Grid Economic and Technological Research Institute Co. Ltd. Beijing China

ISBN: (纸本)9781665486699

Autonomous and controllable new generation substation is a new form of smart substation development in the future, so as to realize more safe and reliable, advanced and applicable, and intensive and efficient. In order to evaluate the matching degree of the networking scheme and the business flow in substation secondary system, this paper draws on the graph theory and matrix analysis to depict the substation network architecture by information interaction path. Combined with different business characteristics, a business flow importance indices evaluation system is constructed based on the analytic hierarchy process and entropy weight method. The case analysis shows that the business flow importance calculation can effectively optimize the substation networking scheme design, which can ensure that the nodes with high importance and the key information interaction paths are covered, and then the feasibility and rationality of the matching degree evaluation method are verified.

关键词： Weight measurement Substations Analytic hierarchy process Reliability theory Network architecture Graph theory Entropy

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Simulation Model of the Hydraulic Drive of the Rotary Column of the Robot Manipulator

Simulation Model of the Hydraulic Drive of the Rotary Column...

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International Conference on control Systems, Mathematical Modelling, automation and Energy Efficiency (SUMMA)

作者： Sergey A Kolpashchikov Michail A Terekhin Evgeny V Kozlov Artem A Portnov Dmitry S Kalugin Ivan V Surguchev Dept. Automation and Control in Technical Systems Samara State Technical University Samara Russia Dept. Digital Technologies Higher School of Medical Engineering Institute of Innovative Development FSBEI HE SamSMU MOH Russia Samara State University of Railway Transport Samara Russia Dept. Digital Technologies Samara State University of Railway Transport Samara Russia Dept. Digital Technologies Samara Institute of Innovative Development FSBEI HE SamSMU MOH Russia State University of Railway Transport Samara Russia

The purpose of the work is to develop a simulation model of the hydraulic drive of the rotary column of the robot manipulator, which provides an adequate similarity of the proposed model with a real object. Modeling of the system was carried out with the help of modern FluidSIM Hydraulics software, which allows to intuitively reproduce and evaluate the operation of the system without using special complex mathematical structures for describing the research model. The result modeling is the transient processes hydraulic motor rotation, position value hydraulic distributor, pressure values in hydraulic lines, pushbutton state. The obtained dependences of numerical values at various time intervals, presented in the corresponding section of this work, allow us to conclude that the developed model adequately describes the nature and behavior of the object under study, corresponding to the normal mode of operation of the hydraulic system. When changing the initial data of the simulation model, it is possible to achieve other operating modes, for example, emergency ones. The developed system rotates clockwise and counterclockwise, control is carried out using a relay-contactor system. The simulation of the system was carried out taking into account the compensation of hydraulic shocks in the hydraulic lines when changing the direction of rotation in the opposite direction. Based on the results obtained, it can be concluded that the efficiency of the hydraulic drive of the rotary column of the robot manipulator depends on several main factors, such as speed, load and pressure in the hydraulic lines. Changing these parameters can affect the system both positively, leading to an increase in the efficiency of the system as a whole, and negatively and lead to a decrease in positioning accuracy, an increase in the reaction time of the system and the efficiency of power transmission. The results obtained are of interest not only for engineers of hydraulic drive systems, but also

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Simulation Model of Hydraulic Feed System with Differential Cylinder

Simulation Model of Hydraulic Feed System with Differential ...

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International Conference on control Systems, Mathematical Modelling, automation and Energy Efficiency (SUMMA)

作者： Ilya L Sandler Dmitriy V Ivanov Michail A Terekhin Sergey A Kolpashchikov Alexey V Vossin Artem V Portnov Dept. Digital Technologies Samara State University of Railway Transport Samara Russia Dept. Automation and Control in Technical Systems Samara State Technical University Samara Russia Dept. Information Systems Security Samara National Research University Samara Russia Higher School of Medical Engineering Institute of Innovative Development FSBEI HE SamSMU MOH Russia Samara Russia Institute of Innovative Development FSBEI HE SamSMU MOH Russia Samara Russia

The paper presents a simulation model of a hydraulic feed system with a differential cylinder, which allows you to explore the system and visually examine its operation. During the simulation, transient processes were obtained at various points of the hydraulic control system. The simulation results show the adequate operation of the system under study. The work is of interest to researchers and engineers in the field of building automatic hydraulic drive control systems. Also, the results obtained can be used for educational purposes.

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An OpenPLC-based Active Real-time Anomaly Detection Framework for Industrial control Systems

An OpenPLC-based Active Real-time Anomaly Detection Framewor...

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Chinese automation Congress (CAC)

作者： Chengxu Zheng Xiaopeng Wang Xiaoyu Luo Chongrong Fang Jianping He The Dept. of Automation Shanghai Jiao Tong University the Key Laboratory of System Control and Information Processing Ministry of Education of China and Shanghai Engineering Research Center of Intelligent Control and Management Shanghai China NSFOCUS Technologies Group Co. Ltd Beijing China

In recent years, the design of anomaly detectors has attracted a tremendous surge of interest due to security issues in industrial control systems (ICS). Restricted by hardware resources, most anomaly detectors can only be deployed at the remote monitoring ends, far away from the control sites, which brings potential threats to anomaly detection. In this paper, we propose an active real-time anomaly detection framework deployed in the controller of OpenPLC, which is a standardized open-source PLC and has high scalability. Specifically, we add adaptive active noises to control signals, and then identify a linear dynamic system model of the plant offline and implement it in the controller. Finally, we design two filters to process the estimated residuals based on the obtained model and use χ 2 detector for anomaly detection. Extensive experiments are conducted on an industrial control virtual platform to show the effectiveness of the proposed detection framework.

关键词： Adaptation models Industrial control Detectors Real-time systems Software Security Task analysis

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Topology Inference for Network Systems: Causality Perspective and Non-asymptotic Performance

arXiv

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arXiv 2021年

作者： Li, Yushan He, Jianping Chen, Cailian Guan, Xinping Dept. of Automation Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai Engineering Research Center of Intelligent Control and Management Shanghai China

Topology inference for network systems (NSs) plays a crucial role in many areas. This paper advocates a causality-based method based on noisy observations from a single trajectory of a NS, which is represented by the state-space model with general directed topology. Specifically, we first prove its close relationships with the ideal Granger estimator for multiple trajectories and the traditional ordinary least squares (OLS) estimator for a single trajectory. Along with this line, we analyze the non-asymptotic inference performance of the proposed method by taking the OLS estimator as a reference, covering both asymptotically and marginally stable systems. The derived convergence rates and accuracy results suggest the proposed method has better performance in addressing potentially correlated observations and achieves zero inference error asymptotically. Besides, an online/recursive version of our method is established for efficient computation or time-varying cases. Extensions on NSs with nonlinear dynamics are also discussed. Comprehensive tests corroborate the theoretical findings and comparisons with other algorithms highlight the superiority of the proposed method. Copyright © 2021, The Authors. All rights reserved.

关键词： Trajectories

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Sneak attack against mobile robotic networks under formation control

arXiv

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arXiv 2021年

作者： Liy, Yushan Hey, Jianping Dingy, Xuda Caiz, Lin Guany, Xinping Dept. of Automation Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai China Dept. of Electrical and Computer Engineering University of Victoria VictoriaBC Canada

The security of mobile robotic networks (MRNs) has been an active research topic in recent years. This paper demonstrates that the observable interaction process of MRNs under formation control will present increasingly severe threats. Specifically, we find that an external attack robot, who has only partial observation over MRNs while not knowing the system dynamics or access, can learn the interaction rules from observations and utilize them to replace a target robot, destroying the cooperation performance of MRNs. We call this novel attack as sneak, which endows the attacker with the intelligence of learning knowledge and is hard to be tackled by traditional defense techniques. The key insight is to separately reveal the internal interaction structure within robots and the external interaction mechanism with the environment, from the coupled state evolution influenced by the model-unknown rules and unobservable part of the MRN. To address this issue, we first provide general interaction process modeling and prove the learnability of the interaction rules. Then, with the learned rules, we design an Evaluate-Cut-Restore (ECR) attack strategy considering the partial interaction structure and geometric pattern. We also establish the sufficient conditions for a successful sneak with maximum control impacts over the MRN. Extensive simulations illustrate the feasibility and effectiveness of the proposed attack. Copyright © 2021, The Authors. All rights reserved.

关键词： Robotics

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Synchronizing sequences for verification of finite state machines

Synchronizing sequences for verification of finite state mac...

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2019 International Conference on Information and Telecommunication Technologies and Radio Electronics, UkrMiCo 2019

作者： Mroshnyk, Maryna Shkil, Olexander Kulak, Elvira Rakhlis, Dariia Pahomov, Yurii Mroshnyk, Anatolii Dept. Specialized Computer Systems Ukrainian State University of Railway Transport Kharkiv Ukraine Dept. Computer Engineering Design Kharkiv National University of Radio Electronics Kharkiv Ukraine Dept. Automation and Control in Technical Systems of the National Technical University Kharkov Polytechnic Institute Kharkiv Ukraine

ISBN: (纸本)9781728126920

The method of detection and localization of design errors in HDL-models of finite state machines with arbitrary output functions was proposed. The diagnostic experiment is carried out bypassing all arcs of the Mealy machine, starting from the initial vertex, including for machines of the "nonexclusive" class. To ensure the return of the machine with a possible design error in the initial state, it is suggested to use synchronizing sequences. Diagnostic experiments were performed in the Active-HDL design environment. © 2019 IEEE

关键词： Diagnistic experiment HDL State diagram State machine Tests Verification Waveform

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