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Aircraft wing vibration parameters measurement system using MEMS IMUs and closed-loop optimal correction

Aerospace systems 2022年第3期5卷 473-480页

作者： Maamo, M.S. Afonin, A.A. Sulakov, A.S. Department of Control Systems Informatics and Power Engineering Moscow Aviation Institute (National Research University) Volokolamskoe shosse 4 Moscow 125993 Russian Federation Faculty of Robotics and Mechatronics Moscow University for Industry and Finance «Synergy» Street Meshchanskaya 9/14 Moscow 129090 Russian Federation

Nowadays, there is still a need for the development of a high-precision measurement system for aircraft structural elements vibrations, this is due to the fact that many aviation problems are associated with analyzing vibration characteristics of aircraft mechanical structures during its main modes of operation, including flight, particularly the airplane wing health monitoring. This paper presents preliminary results of research carried out toward building a promising system designed to measure vibration parameters of airplane wing. Comparing it with the existing analogues systems, the proposed system features the use of approaches that are traditional for solving orientation and navigation problems for vibration measurements. The article discusses the principles of building such system based on micromechanical inertial measurements units, displacement sensors, on-board aircraft navigation system and sensor data fusion technology. The paper provides a brief overview of the existing solutions in this field of research, and substantiates the relevance and feasibility of the proposed technical solution. The paper presents the basic hardware components of the proposed system, presents the fundamentals of its operation based on the data collected from many sources, including displacement sensors, inertial units and the optimal Kalman estimation and correction algorithm. Besides, the paper presents the mathematical errors models of the system main components. The main algorithms of the system are shown, including algorithms for inertial measurements, estimation and correction in a closed-loop scheme for including optimal Kalman filter, and indirect calculations of vibration parameters. Finally, the initial simulation results of system operation are shown, demonstrating its operability and expected accuracy characteristics, which confirms the system effectiveness and the prospects of the chosen direction of research. © 2022, Shanghai Jiao Tong University.

关键词： Airplane wing Closed-loop optimal correction MEMS IMU Navigation and orientation Optimal Kalman filter Sensor data fusion Vibration measurement

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Global scale solar energy harnessing: An advanced intra-hourly diffuse solar irradiance predicting framework for solar energy projects

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Neural Computing and Applications 2024年第18期36卷 10585-10598页

作者： El-kenawy, El-Sayed M. Bailek, Nadjem Bouchouicha, Kada Zerouali, Bilel Hassan, Muhammed A. Kuriqi, Alban Jamil, Basharat Colak, Ilhami Khalil, Adel Ibrahim, Abdelhameed Department of Communications and Electronics Delta Higher Institute of Engineering and Technology Mansoura35111 Egypt Laboratory of Mathematics Modeling and Applications Department of Mathematics and Computer Science Faculty of Sciences and Technology Ahmed Draia University of Adrar Adrar01000 Algeria Energies and Materials Research Laboratory Faculty of Sciences and Technology University of Tamanghasset Tamanrasset10034 Algeria MEU Research Unit Middle East University Amman Jordan Adrar01000 Algeria Vegetal Chemistry-Water-Energy Laboratory Faculty of Civil Engineering and Architecture Department of Hydraulic Hassiba Benbouali University of Chlef Ouled Fares Chlef02180 Algeria Mechanical Power Engineering Department Faculty of Engineering Cairo University Giza12613 Egypt School of Architecture University of Waterloo 7 Melville St S CambridgeONN1S 2H4 Canada CERIS Instituto Superior Tecnico Universidade de Lisboa Lisbon Portugal Civil Engineering Department University for Business and Technology PristinaKosovo10000 High Temperature Processes Unit IMDEA Energy Institute Av. Ramón de La Sagra 3 Móstoles Madrid28935 Spain Faculty of Engineering and Architectures Nisantasi University Istanbul Turkey Computer Engineering and Control Systems Department Faculty of Engineering Mansoura University Mansoura35516 Egypt

Diffuse horizontal irradiance (DHI) forecasts are critical for adopting solar photovoltaic technology. Yet, they can lack reliability given the limited and uncertain meteorological data available for desert areas. This research develops a new sine cosine dipper throated optimization (SCDTO) technique, targeting DHI prediction even given such data constraints. SCDTO uniquely hybridizes sine cosine metaheuristics, adept at exploration, with dipper throat optimization, providing focused exploitation. This hybridization aims to create a robust ensemble model capable of delivering reliable DHI predictions despite climatic uncertainty. The ensemble model, employing various input combinations, was rigorously evaluated across multiple meteorological stations. The SCDTO algorithm exhibited remarkable performance improvements, yielding substantial reductions exceeding 93% in root mean squared error and 98% in mean absolute error at key stations in Morocco, including Tan-Tan, Zagora, Erfoud, and Oujda. Comparative analyses against established optimization algorithms consistently underscored the superior predictive capabilities of SCDTO. Visualizations, including box plots and histograms, demonstrated SCDTO’s efficacy in minimizing prediction errors, particularly for Tan-Tan, Zagora, and Erfoud stations. Also, statistical validation through one-way analysis of variance (ANOVA) further affirmed the significance of the proposed SCDTO method. Therefore, this hybrid metaheuristic optimization enables more accurate DHI predictions from limited meteorological data. © The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2024.

关键词： Solar energy

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The Optimal design of the Second-Order Generalized Integrator Phase-Locked Loop Under power Voltage Distortion Conditions 5

The Optimal Design of the Second-Order Generalized Integrato...

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5th IEEE Conference on Energy Internet and Energy System Integration, EI2 2021

作者： Zhang, Xin Gong, Lijiao Wang, Bin Si, Jindong College of Mechanical and Electrical Engineering Shihezi University Shihezi China Shihezi China State Key Laboratory of Safety Control and Simulation of Power Systems and Power Generation Equipment Department of Electrical Engineering Tsinghua University Beijing China

ISBN: (纸本)9781665434256

Phase-locked loop (PLL) based on traditional second-order generalized integrator (SOGI) cannot obtain the voltage, frequency and phase information accurately when there are multiple harmonic interference and DC offset in grid voltage. To solve this problem, this paper proposes an improved PLL that can suppress harmonic and eliminate DC component to extract the synchronous signal accurately. First of all, based on the derivation of distorted grid voltage expression, the problem offluctuation in extracting synchronous signal from three-phase unbalanced voltage with harmonic by traditional PLL is analyzed. Then, the design of improved PLL is proposed, which is composed of an improved second-order generalized integrator and a frequency correction component which can suppress harmonics and eliminate disturbances under the condition of grid voltage distortion, and has self-adaptability in large frequency offset. Determine the control parameters to ensure that the proposed PLL structure has a better rejection to harmonic distortion than previous approaches, and realize accurate tracking of grid fundamental frequency synchronization information. Finally, the behavior of the proposed system is verified with MATLAB/Simulink simulation and Hardware-in-Loop Experimental Platform which prove the proposed PLL can realize the synchronous tracking performance of grid frequency and phase quickly and accurately in the non-ideal grid environment, and the results are consistent with the theoretical analysis. © 2021 IEEE

关键词： Phase locked loops

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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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Intelligent On-Line System for Monitoring Technical Condition of High-Voltage Cable Couplings

Intelligent On-Line System for Monitoring Technical Conditio...

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International Russian Smart Industry Conference (SmartIndustryCon)

作者： Vadim R. Gasiyarov Stanislav V. Voronin Andrey A. Radionov Ivan V. Lyubimov Sergey A. Evdokimov Vadim R. Khramshin Department of Automation and Control Moscow Polytechnic University Moscow Russia Department of Mechatronics and Automation South Ural State University Chelyabinsk Russia Power Engineering and Automated Systems Institute Nosov Magnitogorsk State Technical University Magnitogorsk Russia

The article provides the characteristics of the end cable couplings of the closed switchgear 110 kV at the electric steelmaking workshop of the metallurgical plant. The functions of the continuous technical condition monitoring system are substantiated, including continuous temperature monitoring and on-line registration of partial discharges in the insulation. The first function provides monitoring of the operational load, and the second has the maximum sensitivity for diagnosing defect propagation. A functional diagram of the developed intelligent on-line system for monitoring technical condition with digital signal transmission is provided. The choice of sensors and processor unit is justified. The authors consider the temperature control system of high-voltage equipment “WDM-T”, including a wireless sensor and an information receiver. The results of monitoring the thermal regime are provided, the advantages of partial discharge analysis are pointed out. The temperature trends of the end couplings included in the cable line phases are considered. The system is implemented on the closed switchgear 110 kV end couplings, its long-term operation has confirmed the effectiveness of technical condition monitoring. The developed system may be a component of an on-line cyberphysical system for monitoring the condition of high-voltage equipment in the electric steelmaking workshop.

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Metrological Level Evaluation Method for Electric power Complexes Information and Measuring systems

Metrological Level Evaluation Method for Electric Power Comp...

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IEEE NW Russia Young Researchers in Electrical and Electronic engineering Conference (EIConRusNW)

作者： Maria Kamenskaya Tatyana Chernyshova David Zemskoy Andrey Ladynin Svetlana Artemova Pavel Karelin Department of Power Engineering Tambov State Technical University Tambov Russian Federation Informatics Department MIREA – Russian Technological University Moscow Russian Federation Radio-electronic and microprocessor systems design Department MIREA – Russian Technological University Moscow Russian Federation

Electric power complexes are infrastructure’s key elements that ensure stable and reliable power supply. However, its operation depends on various external influencing factors that can adversely affect information and measurement systems functioning quality included in them. In order to assess and analyze this influence, an integrated approach is required, taking into account systems’ many parameters. We consider IMS functioning quality assessment methodology for electric power complexes, allowing to determine external factors influence degree and reliability recommendations development.

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Optimization design and Dynamic Compensation Strategy of Inverter Parallel Virtual Impedance Based on Residual Generator

Optimization Design and Dynamic Compensation Strategy of Inv...

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IEEE Conference on Energy Internet and Energy System Integration (EI2)

作者： Changbin Hu Haiyang Huang Shanna Luo Huiru Wang Xuecheng Li Heng Lu North China University of Technology School of Electrical and Control Engineering Beijing China Beijing Kedong Electric Power Control System Co. Ltd Beijing China Department of Automatic Control and Complex Systems University of Duisburg-Essen Germany

To solve the power imbalance problem caused by the difference between the equivalent impedance of the inverter and the line impedance, and the power quality problem caused by the disturbance of load mutation, unbalanced load and nonlinear load, this paper proposes a closed-loop feedback dynamic compensation strategy based on the equivalent virtual impedance of the residual generator. Firstly, based on the parallel topology of inverters, a quasi-steady-state model is established on the dq axis. Based on the model, the power imbalance caused by the difference of output impedance and line impedance of different inverters and the power quality problems caused by load switching, unbalanced load, nonlinear load and other disturbances in parallel inverters are ***, a residual generator is established based on the inverter model. A virtual impedance equivalent controller Q vir (S) based on the residual generator is designed by the Luenberger observer principle. The disturbance information is fed back in real time through the feedback structure, and then the virtual impedance is adjusted to realize the power sharing of the inverter parallel system. Then, based on Euler parameterization and coprime factorization theory, a dynamic compensation architecture based on residual generator is designed. The transfer function of the dynamic compensation controller Q com (S) is obtained by model matching to realize the steady-state operation of parallel inverters and the improvement of system power quality. Finally, the effectiveness of the proposed architecture is verified on the experimental platform.

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Measurement of Reflection and Shielding Effectiveness of Electromagnetic Fields in Construction Materials with Subsequent Calculation of Absorption

Measurement of Reflection and Shielding Effectiveness of Ele...

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International Conference on Modern Electrical and Energy systems (MEES)

作者： Marek Pavlík Viacheslav Melnykov Department of Electric Power Engineering Technical University of Košice Košice Slovakia Department of Systems of Automatic Control and Electric Drive Kremenchuk Mykhailo Ostrohradskyi National University Kremenchuk Ukraine

In today’s world of wireless technologies, we observe a proliferation of devices that communicate and operate wirelessly. All these devices emit electromagnetic radiation, which also penetrates the human body. Given the current technologies, it is not possible to completely prevent the impact of electromagnetic radiation on humans. However, we can mitigate the effects of electromagnetic radiation by choosing the right shielding material. One natural shielding material, for example, is a building. Therefore, in this article, we focused on research in the field of electromagnetic field shielding, reflection, and absorption in building structures. The article describes a measurement method for determining the effectiveness of shielding and reflection of electromagnetic fields. Subsequently, based on these measurements, the absorption of electromagnetic fields can be calculated.

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A Novel Approach for Wind Turbine Robust Speed control Using Sliding Mode control with Extended State Observer

A Novel Approach for Wind Turbine Robust Speed Control Using...

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Renewable Energy and Hydrogen Technologies (GlobConHT), IEEE IAS Global Conference on

作者： Abdulrahman Abu-Askar Muhammad Majid Gulzar Muhammad Khalid Sustainable Innovations Company Limited Al-Khobar Saudi Arabia Control & Instrumentation Engineering Department and Center for Renewable Energy and Power Systems Electrical Engineering Department and Center for Renewable Energy and Power Systems SDAIA-KFUPM Joint Research Center for Artificial Intelligence King Fahd University of Petroleum and Minerals Dhahran Saudi Arabia

To get the most power from a wind turbine, speed of the turbine should be controlled in some operation regions in order to maximize the harvested power. In this paper, a robust controller is proposed which requires no knowledge about the system under control while being easy to tune to achieve required tracking performance, and it is applied for controlling wind turbine rotation speed. The proposed approach uses sliding mode control (SMC) which is enhanced by using an extended state observer (ESO) that estimates and rejects the unmodeled dynamics and external disturbance hence allowing much lower switching gain, or even allowing the use of non-switching control input. The SMARC results are compared with a manually tuned PID controller. The comparison had shown the significance of SMARC robustness, while being easier to design than PID.

关键词： Robust control Renewable energy sources Simulation Velocity control Hydrogen Switches Observers

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