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50th Annual Conference of the IEEE Industrial Electronics Society, IECON 2024

作者： Blinov, Andrei Chub, Andrii Vinnikov, Dmitri Department of Electrical Power Engineering and Mechatronics Tallinn University of Technology Tallinn Estonia

ISBN: (纸本)9781665464543

Extensive use of electric vehicles (EVs) requires a wider availability of charging infrastructure. Together with the penetration of renewable sources, like PVs, and other dc-native technologies, this creates a demand for developments in the field of dc distribution grids. This paper presents the concept of a universal bidirectional dc-dc converter that can be used as an off-board charger for electric vehicles (EVs). Thanks to the reconfigurable input stage, it can be suited for various types of uni- and bi-polar dc grids. The possibility to operate in four different modes allows for the reduction of the stresses on the components while providing a wide output voltage range. The concept is verified with a simulation model of a 3.3 kW charger with an output voltage range of 150…1000 V. © 2024 IEEE.

关键词： Charging stations

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Efficient Warehouse Management System with Automated Storage and Retrieval 8

Efficient Warehouse Management System with Automated Storage...

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8th International Conference on Communication and Electronics Systems, ICCES 2023

作者： Ananthi, K. Kritthik, R. Vishnu, N. Veeramani, R. Sri Krishna College of Engineering and Technology Mechatronics Engineering Coimbatore India

ISBN: (纸本)9798350396638

Human error occurs frequently in today's fast-paced society, and time is a highly valuable resource. Until recently, most of the industrial tasks relied on human resources. In the field of automation, things/objects are being efficiently automated. It is critical to maintain items in an organized and ordered manner without the involvement of humans. In order to cut down the unnecessary workforce storage, this study has designed and developed an Automated Storage Retrieval System (ASRS) to replace human beings and reduce labor costs. ASRS are computer-controlled devices that store and retrieve items automatically in a warehouse or distribution center. ASRS systems possess various advantages, including better inventory management efficiency, accuracy, and speed, lower labor costs, and improved inventory tracking and control. These systems combine various components such as automated storage and retrieval devices, conveyors, and software systems to transport items across the warehouse. This research study examines some of the issues associated with developing and managing ASRS systems and also provides an overview of ASRS technology, its applications, and advantages. © 2023 IEEE.

关键词： Warehouses

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The weather impact on corona losses of 330 kV aging transmission lines

The weather impact on corona losses of 330 kV aging transmis...

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2024 IEEE PES Innovative Smart Grid Technologies Europe Conference, ISGT EUROPE 2024

作者： Gupta, Pradeep Kumar Tuttelberg, Kaur Kilter, Jako Tallinn University of Technology Department of Electrical Power Engineering and Mechatronics Tallinn Estonia

ISBN: (纸本)9789531842976

The main objective of this work is to investigate the characteristics of different weather parameters on corona losses for aging overhead transmission lines using synchronized phasor measurements. The study is conducted for a long-term assessment using two years of data based on PMU measurements collected from Estonian TSO and weather data from the Estonian Environmental Agency. This research gives insight into information about weather factors influencing corona loss for two different aged transmission lines using a statistical graphical study. It is generally believed that aged transmission lines are more sensitive as they are exposed to different environmental conditions, leading to the deterioration of the line performances. Therefore, it would seem appropriate to investigate the factors influencing corona loss in an overhead transmission line. These results can be the basis for transmission system operators to reduce the power loss purchase and improve corona loss management under complex weather conditions to increase power grid efficiency. © 2024 IEEE.

关键词： Power transmission lines

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A DFT-Based Approach for Condition Monitoring of Switch-Mode Power Converters 65

A DFT-Based Approach for Condition Monitoring of Switch-Mode...

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65th IEEE Annual International Scientific Conference on Power and Electrical engineering of Riga Technical University, RTUCON 2024

作者： Kutt, Lauri Tiivel, Tuuli Parker, Martin Valgur, Laur Jarkovoi, Marek Chub, Andrii Tallinn University of Technology Department of Electrical Power Engineering and Mechatronics Tallinn Estonia

ISBN: (纸本)9798350365771

Modern AC power supplies are emitting conducted spurious noise during their operation. This inherent noise has been seen to provide interference as its intensity can often asrise due to aging of the electronic components. For example, bulk storage capacitor in the power supplies is one of the common failure points. In this paper attention is paid to the early warning signatures related to the bulk capacitor aging. The conducted EMI emission characteristics and the dynamics of the EMI levels and parametrics is used to provide an indication on the health state of the capacitor. Discussion is presented on the efficient diagnostic tools and options to detect the EMI emission pattern describing capacitor potential upcoming failures © 2024 IEEE.

关键词： Capacitor bank

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Design and Control of a Self-Driving Vehicle using RP Lidar

Design and Control of a Self-Driving Vehicle using RP Lidar

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2023 International Conference on Robotics and Automation in Industry, ICRAI 2023

作者： Ikhtiar, Areesha Qurban, Dureshahwar Samo, Saifullah Mehran University of Engineering & Technology Department of Mechatronics Engineering Jamshoro Pakistan

ISBN: (纸本)9781665464727

Self-driving vehicles are the core of futuristic mobile robots that do not require human involvement. Road accidents are one of the prominent challenges in society and to minimize the road accident rate, caused by the poor decision-making of people, autonomous vehicles are the best conclusion. This study uses RPLidar A1 to perform 2-D mapping. The suggested algorithm can detect and avoid obstacles and reach the desired location. The design of a self-driving vehicle is developed and evaluated in such a way that it can be used in a variety of situations in which all kinds of obstacles can be detected and avoided whether they are static or dynamic because this vehicle uses a real-time scanning and reacting algorithm which can detect the instantaneous motion of obstacles along with the current position. while designing for a real application, the static and dynamic circumstances of barriers have been taken into account. © 2023 IEEE.

关键词： Autonomous vehicles

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Toxicity Detection in Water Based on Polycyclic Aromatic Hydrocarbons Using Machine Learning Algorithms 8

Toxicity Detection in Water Based on Polycyclic Aromatic Hyd...

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8th IEEE International Conference on engineering Technologies and Applied Sciences, ICETAS 2023

作者： Vasantha, Kavitha Texina, Staphney Renganathan, Alagammai Natraj, Sathees Kumar University of Technology Mechatronics Engineering Bahrain Manama Bahrain

ISBN: (纸本)9798350327090

Polycyclic aromatic hydrocarbons (PAHs) are natural compounds having aromatic ring structures with carbon and hydrogen atoms. PAH can be found in our ecosystem such as air, water, soil, marine and in various food products. Excess presence of PAH is toxic to the environment and leads to carcinogenic effects on the organisms. Further, the presence of PAHs has been observed in aquatic systems which is the result of influent and effluent from wastewater treatment plants, seawater, surface water and ground water. Due to their high affinity and low solubility properties for particulates, PAH concentrations are less in water. However, the toxic nature of the water can be identified based on the concentration limit set by European standards and expert knowledge. Therefore, in this research it is proposed to detect the presence of toxicity in the water based on the PAHs. There are multiple methods to measure the PAH level like Gas chromatography /Mass Spectrometry (GC/MS) and High-Performance Liquid Chromatography (HPLC), but the detection of toxicity is through experimental analysis or expert knowledge. In this consideration, an investigative study has been conducted on the PAHs and the extracted feature sets were formed to evaluate through nonlinear machine learning algorithms such as Artificial Neural Networks. The experimental analysis has been validated through statistical measures and the results show the classification of toxicity in PAHs is promising. © 2023 IEEE.

关键词： High performance liquid chromatography

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Influence Mechanism and Effect of Rotary Shell Speed on Roto-Jet Pump Performance

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International Journal of Fluid Machinery and Systems 2024年第1期17卷 44-56页

作者： Qi, Huang Wencui, Luo Xiaobing, Wang Jiancheng, Shen School of Mechatronics Engineering Lanzhou Institute of Technology Gansu Province Lanzhou730050 China Jianyi Vacuum technology Co. Ltd Fujian Province Longyan364000 China

The roto-jet pump mainly features the synchronous rotation of the impeller and the rotary shell as the structure, which is beneficial to reduce the friction loss of the disc and improve the pump efficiency. The synchronous rotation state of the impeller and the rotary shell, however, does not represent the optimal operating condition of the roto-jet pump. In order to examine the mechanism and the effect of the rotary shell speed on the performance of the roto-jet pump, an experimental research was carried out under two states, namely, rotating and fixed rotary shell, using the open test bench of the roto-jet pump as the research object. A simulation test was performed at rotating shell speed ratio i = 0.4, 0.6, 0.8, 1.0, 1.2, 1.4, 1.6. The results show a relatively high entropy production and dissipation at the inlet of the collecting pipe and the outlet of the impeller at each operating point, and a large energy loss. In addition, the energy loss in the wall area of the rotary shell is basically proportional to the rotational speed of the rotary shell. The collecting pipe has a significant influence on the vortex structure inside the rotary shell, and the surrounding vortices are mainly generated on the upstream surface and the wake area of the collecting pipe. At constant impeller speed, the radial pressure gradient of the liquid in the rotary shell can be increased by increasing the rotary shell speed. The liquid pressure in the area of relative radius s 1 corresponds proportionally to the rotary shell rotating speed. The minimum value of the total disc friction loss for this pump occurs at position i = 0.8. At this point, the friction loss of the impeller disc is 83.8% of the total loss. The friction loss of the rotary shell disc is 16.2%, and the pump efficiency has the highest value, 1.3% higher than that of the rotary shell synchronous rotation operating point. The optimum rotating speed ratio between the rotating shell and the impeller is 0.8, and the resear

关键词： Energy dissipation

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Flexible MXene/PVDF composite-based piezoelectric device (FPED) for dual applications in energy harvesting and smart IoT-driven gaming

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Journal of Industrial and engineering Chemistry 2025年 149卷 657-675页

作者： Fahad, Mohd Waqar, Arbaz Park, Dongkyou Kim, Byungki School of Mechatronics Engineering Korea University of Technology and Education Chungnam Cheonan31253 Korea Republic of Department of Electromechanical Convergence Engineering Korea University of Technology and Education Chungnam Cheonan31253 Korea Republic of Future Convergence Engineering Korea University of Technology and Education Chungnam Cheonan31253 Korea Republic of

Recent advances in energy harvesting and IoT technologies elevate the significance of flexible piezoelectric materials, particularly their dual role in energy generation and functioning as sensors in electronic devices. In this study, Ti3C2Tx (MXene), synthesized via in-situ chemical reactions and hydrothermal treatment, and integrated into a PVDF matrix to create a flexible MXene/PVDF composite device (FPED) using the solvent-casting method. Structural and morphological analyses confirmed the successful integration of MXene into PVDF, resulting in an-enhanced flexible crystalline structure and significantly improved piezoelectric properties. The FPED exhibited higher piezoelectric performance (VOC ∼ 7.98 V.) compared to the PVDF device (VOC ∼ 2.02 V.), by improving the interfacial polarization and enhancing charge transfer properties under loads. FPED also showed improved stress tolerance by efficiently transferring stress from MXene layers to the PVDF matrix. In addition, FPED exhibited excellent performance in storing electrical energy (VOC ∼ 2.30 V) within 12 s in a 22 μF capacitor and powering LEDs by finger tapping. FPED showed significant potential for energy harvesting and monitoring through human activity. Furthermore, FPED used as a smart gaming controller in IoT-based systems, allowing players to control in-game actions such as jumping, flying, walking, hitting, and smashing by finger tapping. These optimistic results suggest that the fabricated flexible MXene/PVDF composite can possess dual properties and power the next generation of small-energy electronics and smart IoT systems. © 2025 The Korean Society of Industrial and engineering Chemistry

关键词： Piezoelectricity

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Smart Pipeline Monitoring System: A Review

Smart Pipeline Monitoring System: A Review

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2023 International Conference on Energy, Power, Environment, Control, and Computing, ICEPECC 2023

作者： Moussa, Mahaman Djamilou Yahaya Aibinu, Abiodun Musa Abdurrahman, Abdusshakur Shobowale, Kafayat Oluwatoyin Chikezie, Anunuso Justice Federal University of Technology Minna Department of Mechatronics Engineering Minna Nigeria Air Force Institute of Technology Kaduna Department of Mechatronics Engineering Kaduna Nigeria

ISBN: (纸本)9781665476010

In Africa's most populous nation, Nigeria, Pipelines are the primary way of transporting liquid and gas. Oil and fuel pipeline networks have proven to be the most secure and competitively priced way of transporting petroleum products while meeting increased demand for efficiency and durability. As a consequence of the negative impact of unreliable pipeline systems on society, the demand for a credible pipeline system is increasing by the day. Failure in pipeline systems can result in pollution and explosions, which pose a threat to people, property, and the ecology. Hence, this paper presents an overview of a smart pipeline monitoring system. The review encompasses the various methods of monitoring pipeline systems, ranging from traditional systems to IoT-based systems. From the papers reviewed, it was seen that there exist numerous methods to carry out pipeline monitoring. These approaches and methods produced different degree of accuracy and efficiency when applied in monitoring pipelines, and also depends on the content or material the pipeline carries. The review identifies key features of pipeline monitoring systems to include: real-Time capability, predictive capability, scalability and accuracy. This paper reveals the possibility to adopt technology-based monitoring system as opposed to traditional methods. © 2023 IEEE.

关键词： Petroleum transportation

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Microstructure evolution and formation mechanism of CoCrCu1.2FeNi high entropy alloy during the whole process of semi-solid billet preparation

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Journal of Materials Science & technology 2022年第25期120卷 172-185页

作者： Jufu Jiang Minjie Huang Ying Wang Yingze Liu Ying Zhang School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China School of Mechatronics Engineering Harbin Institute of TechnologyHarbin 150001China

Dual face-centered cubic(FCC)CoCrCuFeNi semi-solid billets were prepared by semisolid isothermal treatment of wrought high entropy alloy(HEA)(SSITWH)method,and the microstructure evolution in the whole process of billets preparation was systematically investigated by optical microscopy,scanning electron microscopy,electron backscatter diffraction and transmission electron *** hot deformed feedstock was mainly composed of deformation structure with preferred orientations and a small number of dynamically recrystallized grains of FCC1 *** the semi-solid stage,the effect of temperature and soaking time on semi-solid microstructure was studied in the range of 1130-1250℃and 5-120 *** semi-solid microstructure was evaluated *** average grain size and average shape factor increased with the increase of soaking time and isothermal *** isothermal heat treatment,the segregation of Cu in FCCphase reduced to a certain ***-solid coarsening kinetics analysis showed that the alloy had low coarsening *** the temperatures were1130℃,1175℃,1200℃,1225℃and 1250℃,the coarsening coefficients were 1.08μm~3/s,5.95μm~3/s,6.17μm~3/s,17.58μm~3/s,38.67μm~3/s,respectively.A coarsening kinetic equation describing solid grain growth was *** heating up,FCCand FCCphase recrystallized *** higher temperature,FCCphase was spheroidized to a certain *** temperature was raised to semisolid range,the grains of FCCphase coalesced,grew up and spheroidized and the preferred orientations basically *** types of semi-solid melting characteristics of HEAs were summarized in this *** semi-solid melting behavior of alloys is essentially affected by phase structure,phase number,phase volume content and composition.

关键词： High entropy alloy Semi-solid billets Microstructure Grain coarsening Formation mechanism

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