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SSRN 2022年

作者： Ahmed, Aisha Sir Elkhatem Engin, Seref Naci Control and Automation Engineering Department Yildiz Technical University Istanbul34349 Turkey Khartoum Sudan

An enhanced gain-scheduling control strategy was presented to establish a smooth adaptation mechanism for the longitudinal motion of B747 between different flight envelopes. The focal objective is to accomplish a smooth and non- conservative gain-scheduling control system that has high performance and stability characteristics for different flight conditions and transitions between them. The proposed approach ensured a successful gain scheduling control system by allocating a specific error performance index that should be minimized for all flight conditions. Then all required performance indices were cohered according to flight envelope in the form of a multi-objective optimization problem that could be solved using evolutionary algorithms. The performance and stability of the transition points between different flight conditions were preserved through the sets of feasible solutions obtained by an evolutionary algorithm which are known as a set of Pareto optimal solutions. The proposed gain-scheduling system was built based on 2DoF-PID (Two-degree-of-freedom Proportional Integral Derivative) controller. An auto-decision-maker was developed to adjust the parameters of the 2DoF-PID gain-scheduling control system with the current flight condition. The proposed methodology was evaluated by simulation results according to the quality of the Pareto-front and transient response of the gain-scheduling controller for the chosen flight conditions. © 2022, The Authors. All rights reserved.

关键词： Optimal systems

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Riding the Rollercoaster: Improving UAV Piloting Skills with Augmented Visualization and Collaborative Planning

Riding the Rollercoaster: Improving UAV Piloting Skills with...

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International Conference on Unmanned Aircraft Systems (ICUAS)

作者： Riccardo Franceschini Javier Rodriguez Marquez Matteo Fumagalli Julian Cayero Becerra Eurecat Centre Tecnològic de Catalunya Robotics and Automation Unit Cerdanyola del Vallès Barcelona Spain Department of Electrical Engineering Automation and Control group Danish Technical University Elektrovej Kgs. Lyngby Denmark

ISBN: (数字)9798350357882

ISBN: (纸本)9798350357899

Operating unmanned aerial vehicles (UAVs) in complex environments can be challenging, particularly for inexperienced operators. This paper introduces a method aimed at enhancing the piloting experience by incorporating an intermediary processing layer between the remote controller and the drone. The presented approach empowers operators to control both the speed and direction of the UAV along a secure path, which is continuously computed and overlaid onto the operator's camera stream. The UAV autonomously plans and executes this path, adapting to the operator's commands and en-vironmental changes. The primary aim of this proposed solution is to enhance the operator's situational awareness, perception, as well as the safety and efficiency of UAV navigation. The paper outlines the system and methodology employed, showing its ability to operate at a high enough frequency to enable seamless user interactions. Furthermore, to validate the effectiveness of this approach, a real-world test and a user-based experimental study conducted in a simulation environment with an audience comprising varying levels of pilot expertise have been carried out.

关键词： Human-robot interaction Process control Collaboration Autonomous aerial vehicles Safety Planning Haptic interfaces

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Virtual Synchronous Generator Droop control for Renewable Energy Sources

Virtual Synchronous Generator Droop Control for Renewable En...

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Global Energy Conference (GEC)

作者： Fevzi Cakmak Sukru Aykat Mehmet Cemil Kazanbaş Sabahattin Akgul Department of Electricity and Energy Mardin Atuklu University Mardin Turkey Department of Computer Engineering Mardin Atuklu University Mardin Turkey Department of Control and Automation Engineering Yildiz Technical University Istanbul Turkey Department of Handicrafts Mardin Atuklu University Mardin Turkey

ISBN: (数字)9798331532611

ISBN: (纸本)9798331532628

The connection of large-scale RES (renewable energy source) to the grid and the increase in the efficiency of energy production also causes different power quality problems. It has become mandatory for these inverter-based systems to participate in load frequency control. For this purpose, the design and simulation of a virtual synchronous generator (VSG), which enables RES to operate like synchronous generators, has been carried out in Matlab/Simulink environment. It is observed that the VSG keeps the load frequency stable according to different load conditions.

关键词： Renewable energy sources Power quality Production Synchronous generators MATLAB Frequency synchronization Frequency control

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Enhancing the performance of CaTiO3-GDC heterostructure electrolytes in LT-CFCs

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Ceramics International 2025年第15期51卷 20131-20142页

作者： Li, Dongchen Cui, Yingying Hong, Xiaofang Shah, M.A.K. Yousaf Mushtaq, Naveed Rauf, Sajid Arshad, Naila Irshad, Sultan Alodhayb, Abdullah N. Yousaf, Muhammad Lu, Yuzheng Department of Electrical and Automation Shandong Labor Vocational and Technical College Jinan250300 China Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology/Energy Storage Joint Research Center School of Energy and Environment Southeast University No.2 Si Pai Lou Nanjing210096 China College of Mechatronics and Control Engineering Shenzhen University Guangdong Province 518000 China School of Physics Electronics and Intelligent Manufacturing Huaihua University Hunan Huaihua418008 China College of Electronics and Information Engineering Shenzhen University Guangdong Province 518000 China Department of Physics and Astronomy College of Science King Saud University Riyadh11451 Saudi Arabia College of Chemistry and Environmental Engineering Shenzhen University Guangdong Province Shenzhen518055 China School of Electronic Engineering Nanjing Xiaozhuang University Nanjing211171 China

Designing ceramic fuel cells (CFCs) with fast ionic conduction and superior electrochemical performance at low temperatures is critical for advancing hydrogen applications. Here, we developed a heterostructure electrolyte by combining the ionic conductor Gd0.1Ce0.9O2 (GDC) with the semiconductor material CaTiO3 (CTO) to shape into the composite heterostructure (semiconductor ionic heterostructure) CTO-GDC. The designed heterostructure with different fermi levels established the depletion zone due to the redistribution of charges at the interface, leading to enhancement of the ionic conduction;meanwhile, the established built-in electric field suppresses the electronic conduction speed of the ion's transportation at the interface of the constructed heterostructure (CTO-GDC). The formation of heterostructure introduces a number of oxygen vacancies, as confirmed via x-ray photoelectron spectroscopy (XPS) and electron paramagnetic resonance (EPR), benefiting the transportation of ions in the composite heterostructure. The prepared composite heterostructure shows the highest power output of 810 mW/cm2 at a low operational temperature of 520 °C. The CTO-GDC shows high ionic conductivity of 0.17 S cm−1 at 520 °C and low activation energy of 0.785 eV at 520-420 °C. The composite containing a 50 % molar ratio of GDC and CTO demonstrated exceptional performance by successfully inhibiting electron transit, improving ionic conductivity, and achieving outstanding power output. The enhanced ionic conductivity with low activation energy of composite heterostructure suggests that designing a heterostructure seems an efficient approach to fuel cell application. © 2025

关键词： Paramagnetic resonance

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Library Management System Using Artificial Intelligence 8

Library Management System Using Artificial Intelligence

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8th IEEE International Conference on Science, Technology, engineering and Mathematics, ICONSTEM 2023

作者： Abdulwahid, Ali Hadi Pattnaik, Manjula Palav, Manesh R. Tilak Babu, S.B.G. Manoharan, Geetha Pandi Selvi, G. Southern Technical University Engineering Technical College Control and Automation Engineering Department Basra Iraq Princess Nourah Bint Abdulrahman University College of Business Administration P.O.BOX:84428 Riyadh Saudi Arabia Dr.D.Y.Patil Vidyapeeth Pimpri Global Business School & Research Centre Mba Department Maharashtra Pune411018 India Aditya Engineering College Dept of Ece Surampalem India Sr University School of Business Telangana Warangal India Dhanalakshmi Srinivasan College of Engineering Dean Mba Coimbatore India

ISBN: (纸本)9798350347791

Artificial intelligence, which has resuscitated shrewd libraries, is one of the principal powers driving the improvement of present day civilisation. This exposition makes sense of the hidden association between artificial intelligence (simulated intelligence) and savvy libraries, examinations how computer based intelligence is utilized with regards to brilliant libraries, and gives instances of how computer based intelligence further develops library administrations. Artificial intelligence is an expansive, complex area of exploration that may be hard for nonexperts to comprehend. However, its definitive goal is to make PC systems with artificial intelligence, which clearly has significant ramifications for librarianship. In the event that we are to propel the investigation of canny systems, we should have an exhaustive comprehension of simulated intelligence advances. Through the ongoing utilization of computer based intelligence advancements, countless model shrewd library systems for classifying, ordering, data recovery, reference, and different purposes have been grown;notwithstanding, just few these systems have formed into items or systems that are utilized in the standard activities of libraries. © 2023 IEEE.

关键词： Libraries

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Machine Learning in Predicting the Impact of Filter Parameters on the Accuracy of Biosignal Measurement

Machine Learning in Predicting the Impact of Filter Paramete...

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Digital Signal Processing and its Applications (DSPA), International Conference on

作者： Yeldos A. Altay Raisa K. Uskenbayeva Abu-Alim E. Ayazbay Alexey V. Fedorov Department of Robotics and Technical Means of Automation Satbayev University Almaty Kazakhstan Institute of Automation and Information Technologies Vice-Rector Satbayev University Almaty Kazakhstan Electronic engineering Almaty University of Power Engineering and Telecomunications Almaty Kazakhstan Faculty of Control Systems and Robotics ITMO University Saint-Petersburg Russian Federation

ISBN: (数字)9798331518752

ISBN: (纸本)9798331518769

In this scientific article under consideration, a machine learning model has been developed that allows predicting the impact of filter parameters on the accuracy of measuring a biosignal - an ECG (electrocardiography) signal. For the first time, quantitative results have shown the degree of influence and the error introduced into the measured biosignal and described through dependence. The results of assessing the obtained relationship of indicators demonstrate an inverse correlation relationship that characterizes a decrease in the accuracy of measurement at the output of a high-order digital filtering system. The machine learning model is based on the linear regression method the dependence of which is approximated by the method based on least squares and visualized using a scattergram. The adequacy of the developed machine learning model was confirmed by calculating the coefficient of determination and checking its statistical significance. The developed model can be used to create new or improve existing biomedical data processing systems to increase the reliability of the results.

关键词： Accuracy Shape Filtering Biological system modeling Machine learning Biomedical measurement Electrocardiography Distortion Distortion measurement Digital filters

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Aggressive Trajectory Generation for A Swarm of Autonomous Racing Drones

arXiv

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arXiv 2023年

作者： Shen, Yuyang Xu, Jinming Zhou, Jin Xu, Danzhe Zhao, Fangguo Chen, Jiming Li, Shuo The College of Control Science and Engineering Zhejiang University Hangzhou310027 China The Department of Automation Zhejiang University of Technology Hangzhou310023 China The School of Automation Northwestern Poly-Technical University Xi'An710072 China

Autonomous drone racing is becoming an excellent platform to challenge quadrotors' autonomy techniques including planning, navigation and control technologies. However, most research on this topic mainly focuses on single drone scenarios. In this paper, we describe a novel time-optimal trajectory generation method for generating time-optimal trajectories for a swarm of quadrotors to fly through pre-defined waypoints with their maximum maneuverability without collision. We verify the method in the Gazebo simulations where a swarm of 5 quadrotors can fly through a complex 6-waypoint racing track in a 35m × 35m space with a top speed of 14m/s. Flight tests are performed on two quadrotors passing through 3 waypoints in a 4m × 2m flight arena to demonstrate the feasibility of the proposed method in the real world. Both simulations and real-world flight tests show that the proposed method can generate the optimal aggressive trajectories for a swarm of autonomous racing drones. The method can also be easily transferred to other types of robot swarms. © 2023, CC BY.

关键词： Drones

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Developing Digital Twin for Electromechanical System of Rolling Stand in Simulink Real Time

Developing Digital Twin for Electromechanical System of Roll...

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International Ural Conference on Measurements (UralCon)

作者： Andrey A. Radionov Alexandr S. Karandaev Boris M. Loginov Vadim R. Khramshin Department of Automation and Control Moscow Polytechnic University Moscow Russia Magnitogorsk Iron and Steel Works Magnitogorsk Russia Power Engineering and Automated Systems Institute Nosov Magnitogorsk State Technical University Magnitogorsk Russia

ISBN: (数字)9798350386028

ISBN: (纸本)9798350386035

The development of digital twins (DTs) of industrial electrical systems is attributed to the need for the reduction of time and material resource inputs during their virtual commissioning (VC). The same problem occurs during renovation with complete or partial equipment replacement and/or control systems. These problems can be efficiently solved by developing object-oriented DTs based on the Simulink Real Time software and using hardware-in-the-loop simulation (HIL). This software is compatible with Matlab Simulink and the Simscape package, which makes it suitable for the industrial usage. The authors suggest a HIL-based approach that helps make a virtual real-time computer model, with process control signals coming from the industrial PLC that controls the real physical object. This problem occurred during the renovation of the horizontal stand electric drives of a 5000 plate mill. The authors provide the flow charts of the electromechanical system and the object-oriented DT. The implementation of DT in Matlab Simulink Desktop Real Time is reviewed in laboratory settings. The authors present the block structures that make up a virtual model of the electromechanical system. The developed DT was used to adjust control algorithms and controllers and study the dynamic modes over a rolling cycle. The adequacy of the processes was tested by comparing the oscillograms obtained with the developed DT and the rolling mill. The authors stress the feasibility of developing DTs on the Simulink Real Time platform using HIL simulation during VC and renovation of complex industrial objects.

关键词： Software packages Object oriented modeling Hardware-in-the-loop simulation Heuristic algorithms control systems Real-time systems Mathematical models Digital twins Electromechanical systems MATLAB

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Acoustic Positioning of Partial Discharges in High-Voltage Transformer Tank

Acoustic Positioning of Partial Discharges in High-Voltage T...

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International Ural Conference on Measurements (UralCon)

作者： Alexandr S. Karandaev Andrey B. Loginov Andrey A. Nikolaev Department of Automation and Control Moscow Polytechnic University Moscow Russia Power Engineering and Automated Systems Institute Nosov Magnitogorsk State Technical University Magnitogorsk Russia Magnitogorsk Iron and Steel Works Magnitogorsk Russia

ISBN: (数字)9798350386028

ISBN: (纸本)9798350386035

This report reviews an example of acoustic positioning of partial discharges (PD) in the tank of a high-voltage oil-filled transformer. The literature review confirms the importance of PD monitoring and justifies the feasibility of positioning discharge activity centers. The precise positioning of PD sources is required to determine the location of insulation defects. The authors provide brief information on the development of PD positioning methods and note that their practical application has been insufficiently covered in publications. They present the results of electromagnetic and acoustic PD positioning in a 110 kV transformer. Some details are provided on the devices and measurement methods used, including the localization of areas with increased PD intensity using one acoustic sensor and the subsequent center localization through the installation of 4 sensors at even intervals. The authors provide PD signals and defect impulses received from each of the sensors and demonstrate the difference in the registration time of these signals. They explain the principle behind PD center positioning, which is determined considering delays in signal reception. The authors demonstrate the usage of the Inva (Portable) software for the processing and visualization of acoustic positioning results. They note that changes in the propagation rate of acoustic waves in a heterogeneous medium result in the reduced accuracy of results. The authors also outline the prospects of the research into the elimination of occurring defects.

关键词： Partial discharges Location awareness Visualization Reviews High-voltage techniques Oil insulation Fault location Software Monitoring Power transformer insulation

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Rear Wheel Independent Drive Electric Vehicle Yaw Stability control System Design and Analysis

Rear Wheel Independent Drive Electric Vehicle Yaw Stability ...

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Theoretical and Applied Computer Science and engineering (ICTASCE), International Conference on

作者： Celal Tayfur Koç Mümin Tolga Emirler Department of Control and Automation Engineering Yildiz Technical University İstanbul Türkiye Department of Aviation Electrics and Electronics Yildiz Technical University İstanbul Türkiye

This paper introduces rear wheel traction based fully electrical vehicle lateral stability controller design with independently driven electric motors. The proposed controller consists of two stages: lower and upper controllers. The upper controller is the proportional-integral (PI) controller, which calculates the required corrective yaw moment based on the desired and actual yaw rate of the vehicle. The proposed PI controller design method relies on the parameter space approach (PSA) considering D-stability. The time domain and frequency domain requirements are visualized by contour plotting method on the proportional-integral gain parameter plane. This multi-objective visualization assists designers while selecting an appropriate PI controller gain pairs. The lower controller distributes tire forces based on the vehicle's actual and desired situation using a torque distribution algorithm. The double-track vehicle model is employed to validate the proposed control system under different driving scenarios in MATLAB/Simulink. The results show that by using only the traction forces generated independently on the rear wheels, the lateral control of the vehicle considering D-stability, settling time, overshoot, bandwidth, rise time, integral-time-absolute-error and phase margin criteria could be accurately achieved under beforehand defined driving conditions.

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