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Accurate Identification and Localization of Transmission Lines under Complex Lighting for Distribution Network power Supply Operation Robots

Accurate Identification and Localization of Transmission Lin...

引用

2024 China Automation Congress, CAC 2024

作者： Liu, Tianhe Chen, Xin Hu, Chenyu Jian, Xu Li, Shengzu Wang, Gang School of Automation China University of Geosciences Wuhan430074 China Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Wuhan430074 China Engineering Research Center of Intelligent Technology for Geo-Exploration Ministry of Education Wuhan430074 China Equipment Technology Center State Grid Hubei Electric Power Co. Ltd. Electric Power Science Research Institute Wuhan430077 China Distribution Department State Grid Hubei Electric Power Co. Ltd. Wuhan Power Supply Company 430070 China

ISBN: (纸本)9798350368604

Accurate identification and position of transmission lines is critical for robots to safely and effectively perform distribution network operations. However, such tasks are often challenged by complex lighting conditions, where depth information can be easily lost. Transmission lines have limited texture features and reflective surfaces, making it difficult to match image feature points. To address these challenges, this paper proposes a visual perception system for weak texture targets under complex lighting, based on an "eye-on-hand" configuration and a depth complementation algorithm. Furthermore, a high-precision identification and localization method for transmission line grasping points is developed, utilizing the fusion of binocular visual color maps and depth maps. The proposed method has been shown to effectively solve the problem of identifying and localizing the grasping points of transmission lines under complex lighting conditions. Experiments demonstrated that the method can improve the localization accuracy to within ±4mm, outperforming other algorithms. The method is characterized as simple and efficient, and it enhances the environmental adaptability of distribution network robots. © 2024 IEEE.

关键词： Binocular vision

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SMO Based Sensorless Direct Torque Sliding Mode control of IM for EV Applications 3

SMO Based Sensorless Direct Torque Sliding Mode Control of I...

引用

3rd International Conference on Advanced Electrical engineering, ICAEE 2024

作者： Ghezouani, Abdelkader Bousmaha, Imen Souhila Ghouili, Jemal University of Bechar Electrical Engineering Department B.P 417 Bechar08000 Algeria Ecole Supérieure en Sciences Appliquées de Tlemcen ESSAT- Tlemcen BP 165 RP Bel Horizon Tlemcen13000 Algeria Djillali Liabes University of Sidi-Bel-Abbes Intelligent Control and Electrical Power Systems Laboratory Algeria University of Moncton Electrical Engineering Department 18 Avenue Antonine-Maillet Moncton Canada

ISBN: (纸本)9798350349351

This paper presents a study and analysis of a direct torque control strategy associated with a sliding mode control (DTC-SMC) without a speed sensor to control the four induction motors used for the propulsion of a four-wheel drive electric vehicle 4WDEV. The estimation of the rotor speed of each motor is obtained by a sliding mode observer SMO. The main objective of this control method is to increase the robustness and reduce torque and stator flux oscillations. The model is made using the Matlab / Simulink environment. The simulation results obtained show the effectiveness of the control strategy in terms of driving cycle trajectory tracking and disturbance rejection. © 2024 IEEE.

关键词： Disturbance rejection

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design of a Solar Pumping System with Battery Storage Based on Three-Port DC-DC Converter

Design of a Solar Pumping System with Battery Storage Based ...

引用

International Youth Conference on Radio Electronics, Electrical and power engineering (REEPE)

作者： A. Abu Zaid Ibrahim Abdelsalam M. I. Marei Electrical Power Systems Department College of Engineering & Technology Arab Academy for Science Technology & Maritime Transport Cairo Egypt Electrical and Control Department College of Engineering & Technology Arab Academy for Science Technology & Maritime Transport Cairo Egypt Electrical Power and Machines Department Faculty of Engineering Ain Shams University Cairo Egypt

This paper introduces a design for a photovoltaic (PV) pumping system that incorporates battery bank storage. A three-port DC-DC converter (TPC) is employed to integrate the PV, battery bank, and induction motor drive (IMD) based pumping system. The purpose of the battery bank is to provide support to the pump during shading conditions to prevent frequent suspension and down-thrust situations. Additionally, the proposed system aims to maintain the free-floating impeller operating range by imposing rotational speed limits on the pump. The input ports of the TPC consist of the PV port, which is controlled to harvest the maximum power point (MPP) using the perturb and observe technique, and the battery port. The output port is linked to a DC bus using passive rectifier to supply power to the variable speed V/F IMD. The battery port is regulated to sustain the DC bus voltage in a desired voltage range that ensures the impeller operation under free-floating conditions. The proposed system is simulated using MATLAB/Simulink software. The simulation results are discussed to evaluate the dynamic performance.

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The development and evaluation of a combined initial alignment algorithm for strapdown inertial navigation system 3

The development and evaluation of a combined initial alignme...

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3rf International Scientific Conference on Metrological Support of InnovativeTechnologies, ICMSIT 2022

作者： Afonin, A.A. Sulakov, A.S. Maamo, M.S. Shapovalov, N.A. Moscow University for Industry and Finance "synergy" Faculty of Robotics and Mechatronics 9/14 street Meshchanskaya Moscow129090 Russia Department of Control Systems Informatics and Power Engineering 4 Volokolamskoe shosse Moscow125993 Russia

This paper proposes a combined initial alignment algorithm for strapdown inertial navigation system, in which the initial alignment is carried out in two stages during the process of preflight preparations while the aircraft is not moving. This method of initial alignment has the advantages of being conducted based on the Earth's equatorial (Greenwich) coordinate system, which is also used by the aircraft onboard navigation system. In the first stage, the coarse initial alignment is carried out, and this is done according to the orientation parameters using the vector matching method. Then, in the second stage, a fine procedure is carried out, which may be looked at as an integrated system implemented using optimal Kalman filter. In this case, the initial parameters of orientation and navigation are refined, as well as the systematic errors of the inertial sensors are estimated and corrected. The simulation results show that the required level of initial alignment accuracy could be achieved by applying coarse and fine initial alignment procedures not sequentially but in a combination. © Published under licence by IOP Publishing Ltd.

关键词： Inertial navigation systems

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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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Compensation of the Temperature Impact on the Characteristics of a Titania-Silica Thin Film Humidity Sensor Element

Compensation of the Temperature Impact on the Characteristic...

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Automatics and Informatics (ICAI), International Conference

作者： Stefan Ivanov Nedyu Nedev Zvezditza Nenova Department of Automation Information and Control Systems Technical University of Gabrovo Gabrovo Bulgaria Department of Fundamentals of Electrical and Power Engineering Technical University of Gabrovo Gabrovo Bulgaria

In the present work is investigated the impact of ambient temperature in the range of 20°C to 50°C under a change in relative humidity RH of 20% up to 92 % on the characteristics of a highly sensitive TiO 2 -SiO 2 -based thin-film impedance humidity sensor element doped with Ce and prepared by a sol-gel method. The variation of sensor impedance changes in a very wide range - about 4 orders of magnitude. The sensor element is connected in a measurement circuit based on an AC bridge, a variable gain amplifier, a precision rectifier, and a microcontroller with a built-in analog-to-digital converter. The use of artificial neural networks monitoring the ambient temperature and measured voltage is proposed for the realization of the temperature compensation of the characteristics. The proposed approach allows compensating the impact of temperature and performing measurements when connecting humidity sensing elements with a very wide range of impedance change.

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Optimization of Cylindrical Blades for Wind Turbine Based on Magnus Effect

Optimization of Cylindrical Blades for Wind Turbine Based on...

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International Conference on Electromechanical and power systems (SIELMEN)

作者： Aleksandr Lukin Galina Demidova Dmitry Lukichev Nikolai Poliakov Alecksey Anuchin Faculty of Control Systems and Robotics ITMO University Saint-Petersburg Russia Electric Drives Department Moscow Power Engineering Institute Moscow Russia

Wind turbines based on the Magnus effect open new prospects in terms of energy generation for areas with low average wind speeds. The main feature of these turbines is rotating cylinders which are used to create lift instead of blades. Due to this unconventional design, different parameters of the cylinder, such as mass and moment of inertia, can greatly affect the dynamic characteristics of such energy systems. The goal of this paper was to present an approach to structural optimization of a cylinder flange of the experimental Magnus effect-based wind turbine. The proposed approach, presented as an algorithm, allows us to determine input data for the preferred structural optimization software and achieve lightweight, low-inertia parts. control simulation has shown that optimized parts ensure a high enough factor of safety while also significantly reducing the moment of inertia.

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EXPERIMENTAL STUDY ON HEAT TRANSFER CHARACTERISTICS OF HIGH TEMPERATURE HEAT PIPE WITH CAPILLARY WICK DURING EVAPORATION 30

EXPERIMENTAL STUDY ON HEAT TRANSFER CHARACTERISTICS OF HIGH ...

引用

30th International Conference on Nuclear engineering, ICONE 2023

作者： Zhou, Zheng Ma, Yugao Wu, Qi Ma, Zaiyong Sun, Wan Zhang, Luteng Zhu, Longxiang Pan, Liangming Key Laboratory of Low-grade Energy Utilization Technologies and Systems Ministry of Education Chongqing University Chongqing400044 China Department of Nuclear Engineering and Technology Chongqing University Chongqing400044 China Science and Technology on Reactor System Design Technology Laboratory Nuclear Power Institute of China Chengdu610213 China

ISBN: (纸本)9784888982566

Due to the surface covered by the capillary wick in the high temperature heat pipe, the classical evaporation and condensation model may be difficult to characterize the evaporation process well in the high temperature heat pipe under different working conditions. Therefore, this paper carried out an experimental study on the heat transfer characteristics of the evaporation process of high temperature heat pipe with capillary wick. By measuring the axial and radial temperature distribution in the high temperature heat pipe under different working conditions, the phase interface evaporation thermal resistance and evaporation coefficient (Hertz-Knudsen equation) at different temperatures in the high temperature heat pipe were calculated, and the variation law of evaporation coefficient under different working conditions was analyzed. The results show that the magnitude of the evaporation thermal resistance is between 0 and 10-3, which means the evaporation heat transfer coefficient is very high. In general, with the increase of temperature(pressure), the logarithm of evaporation coefficient has a good negative linear correlation with pressure. In addition, it is found that if the adiabatic section temperature commonly used in engineering calculation is taken as the saturation temperature, the value of evaporation coefficient obtained is relatively small, as well as the data dispersion, which is due to axial thermal resistance is introduced. Furthermore, by fitting the experimental data, a correlation for the evaporation of high temperature heat pipe with capillary wick is proposed. © 2023 by JSME.

关键词： Evaporation

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Outlier Treatment and Adaptive Signal Conditioning of Wheel Speed Measurement for Antilock Brake System

Outlier Treatment and Adaptive Signal Conditioning of Wheel ...

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International Communication systems and Networks and Workshops, COMSNETS

作者： R. Rajesh Pavel Vijay Gaurkar Gunasekaran Vivekanandan Sriram Sivaram Shankar C. Subramanian Department of Engineering Design Indian Institute of Technology Madras Chennai India Air Brake Control Systems Madras Engineering Industries Private Ltd. Chennai India Madras Engineering Industries Private Ltd. Chennai India

Wheel speed is an important physical quantity used to implement an Antilock Brake System (ABS) in vehicles. This study uses a Variable Reluctance - Wheel Speed Sensor (VR - WSS) for wheel speed measurement, which is commonly used in Heavy Commercial Road Vehicles (HCRVs). However, wheel speed measurement from in-vehicle experiment results was affected by various time-varying attributes such as noise and outliers. The abovementioned physical measurement considerations are characterized through statistical measures to analyze the consequences on ABS performance. Further, these have been programmed in IPG TruckMaker ® , a vehicle dynamics simulation software and experimentally demonstrated using an HCRV Hardware-in-the-Loop (HiL) setup with ABS algorithm. The experimental results showed that the ABS performance is degraded in terms of braking distance and braking efficiency due to these practical considerations. Therefore, this study proposes an adaptive signal conditioning algorithm to address these physical considerations. It consists of an outlier treatment to handle non-synchronized arbitrary data points and an adaptive filter to handle time-varying noise signals in the measurement. The outcomes of the closed-loop HiL evaluation of the ABS algorithm integrated with the signal conditioning algorithm confirmed that the proposed method retained the ABS performance while addressing practical measurement considerations.

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Intelligent Estimation of Non-Invasive Blood Pressure From the Electrocardiogram Signal (ECG)

Intelligent Estimation of Non-Invasive Blood Pressure From t...

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Electrical engineering and Automatic control (ICEEAC), International Conference on

作者： Siham Moussaoui Hocine Chebi Sidali Fellag Yasmina Fadila Didouche Department of Electrical Engineering Systems Systems and Telecommunications Engineering Laboratory Boumerdes University Algeria Faculty of Electrical Engineering Laboratory Intelligent Control and Electrical Power System (ICEPS) Djillali Liabes University of Sidi Bel Abbes Sidi Bel Abbes Algeria Department of Chemistry Faculty of Sciences Boumerdes University Algeria

ISBN: (数字)9798350349740

ISBN: (纸本)9798350349757

Continuous real-time blood pressure monitoring offers remarkable potential for the detection of cardiovascular disease. In fact, detection from an inflatable cuff makes the patient uncomfortable as a consequence of the inflation pressure of the cuff on the arm, which causes failures in detecting the results or errors in interpreting the systolic blood pressure values and diastolic blood pressure. In this contribution, we present an automatic system to predict the blood pressure signal based on the complexity analysis of the ECG signal, where the features extracted are signal mobility, signal complexity, fractal dimension, entropy, and autocorrelation with the neural network approach (ANN). Our technique is mainly tested on the MIMIC-III databases available to the public on physionet to have the ECG and ABP signals for feature extraction. The results provided argue in favor of our method in terms of efficiency and precision. Indeed, the proposed approach offers the possibility of detecting arterial pressure such as systolic arterial pressure and diastolic arterial pressure in real time

关键词： Deep learning Training Estimation Artificial neural networks Electrocardiography Feature extraction Blood pressure

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