2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON)最新文献

A Template Model to Assess the DC Stability of Green Charging Microgrids 绿色充电微电网直流稳定性评估的模板模型

2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON) Pub Date : 2022-06-14 DOI: 10.1109/MELECON53508.2022.9843043

Andrea Alessia Tavagnutti, D. Bosich, S. Pastore, G. Sulligoi

{"title":"A Template Model to Assess the DC Stability of Green Charging Microgrids","authors":"Andrea Alessia Tavagnutti, D. Bosich, S. Pastore, G. Sulligoi","doi":"10.1109/MELECON53508.2022.9843043","DOIUrl":"https://doi.org/10.1109/MELECON53508.2022.9843043","url":null,"abstract":"As the global efforts towards energy transition are increasing day by day, the electric vehicles are becoming more and more popular. If the employment of no-emissions cars completely nullifies the CO2 contribution, a green charging infrastructure is required to avoid the feeding from fossil fuels energy. In this context, the DC microgrids are the solution as they can smartly integrate both storage systems and renewable sources in the powering of charging stations. Being large the adoption of nonlinear power electronics in DC microgrids, easy-to-use and efficient tools are requested to simplify the dynamics analyses. By means of a numerical tool, the paper proposes an additional perspective on islanded DC microgrids during the sustainable charging. From a template model, the numerical tool is synthesized to study the voltage transient on DC bus, thus the stability performance. As the template model is replicable, the stability is easily assessed also when the DC microgrid is complex. A cross-check comparison with nonlinear model results certifies the effectiveness of the proposed approach.","PeriodicalId":303656,"journal":{"name":"2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115167874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Integrated Multimodal Approach to Evaluate Autonomic Control, Cerebral Autoregulation and Cognitive Function in Patients Undergoing Surgical Aortic Valve Replacement during a 3-Months Follow-up 在3个月的随访中，综合多模式方法评估主动脉瓣置换术患者的自主控制、大脑自动调节和认知功能

2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON) Pub Date : 2022-06-14 DOI: 10.1109/MELECON53508.2022.9843090

V. Bari, F. Gelpi, Noemi Cornara, B. Cairo, Beatrice De Maria, E. G. Bertoldo, Valentina Fiolo, E. Callus, C. de Vincentiis, M. Volpe, Raffaella Molfetta, M. Zanardo, Paolo Vitali, F. Sardanelli, M. Ranucci, A. Porta

{"title":"An Integrated Multimodal Approach to Evaluate Autonomic Control, Cerebral Autoregulation and Cognitive Function in Patients Undergoing Surgical Aortic Valve Replacement during a 3-Months Follow-up","authors":"V. Bari, F. Gelpi, Noemi Cornara, B. Cairo, Beatrice De Maria, E. G. Bertoldo, Valentina Fiolo, E. Callus, C. de Vincentiis, M. Volpe, Raffaella Molfetta, M. Zanardo, Paolo Vitali, F. Sardanelli, M. Ranucci, A. Porta","doi":"10.1109/MELECON53508.2022.9843090","DOIUrl":"https://doi.org/10.1109/MELECON53508.2022.9843090","url":null,"abstract":"Surgical aortic valve replacement (SAVR) can have an impact on cardiovascular (CV) and cerebrovascular (CBV) controls and their impairment could be related to the occurrence of post-surgery CBV adverse events such as stroke. This study proposes a multimodal approach to evaluate the impact of SAVR on different physiological districts. CV and CBV control markers in time, frequency and information domains were computed from the variability of heart period, systolic and mean arterial pressure, and mean cerebral blood flow velocity. Recordings were performed during active standing before (PRE) surgery, within one week from surgery (POST) and after a 3-month follow-up (POST3) in 56 patients (age: $65 pm 13$ yrs, 38 males) undergoing SAVR. Cognitive function was evaluated via psychological tests at every time point, while the presence of ischemic lesions was evaluated at POST via diffusion-weighted magnetic resonance imaging (DW-MRI). Findings showed that CV control indexes were affected in POST and recovered at POST3. DW-MRI indicated the presence of recent ischemic lesions in a high percentage of patients but their cognitive function as well as CBV control was preserved at all time points. A multimodal approach integrating time series analysis, psychological tests and classical imaging techniques could provide an accurate monitoring of postoperative recovery and the identification of patients at risk of developing post-surgery CBV adverse events.","PeriodicalId":303656,"journal":{"name":"2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114655049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Embedded Image Capture System for Liquid Monitoring in the Smart Chemical Industry 智能化工中用于液体监测的嵌入式图像采集系统

2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON) Pub Date : 2022-06-14 DOI: 10.1109/MELECON53508.2022.9842908

Nesrine Boussaada, G. Terrasson, A. Llaria, O. Curea

引用次数: 1

Backstepping-Based Control of Vienna Rectifier for Electric Vehicle DC Ultra-Fast Charger 基于反步控制的电动汽车直流超快充电器维也纳整流器

2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON) Pub Date : 2022-06-14 DOI: 10.1109/MELECON53508.2022.9842893

Achraf Saadaoui, M. Ouassaid, M. Maaroufi

{"title":"Backstepping-Based Control of Vienna Rectifier for Electric Vehicle DC Ultra-Fast Charger","authors":"Achraf Saadaoui, M. Ouassaid, M. Maaroufi","doi":"10.1109/MELECON53508.2022.9842893","DOIUrl":"https://doi.org/10.1109/MELECON53508.2022.9842893","url":null,"abstract":"This study consists in developing a new nonlinear controller for a battery electric vehicle (BEV) ultra-fast charger based on three-phase Vienna rectifier topology. The control method of the studied AC-DC rectification stage is performed in order to achieve four objectives: (i) Ensuring a unity power factor during the ultra-fast charging process, (ii) Regulating the DC output voltage to its reference value, (iii) Realizing the neutral point voltage balance of the three-level converter, and (iv) Providing global asymptotic stability of the studied system. Based on the mathematical model of three-level converter in (dq) frame, a Backstepping-based (BS) control with simplified Space Vector Pulse Width Modulation (SVPWM) has been designed. In order to evaluate dynamic performance of the new nonlinear controller, the achieved results have been compared to the traditional Proportional Integral (PI) control method under load variations. The obtained results prove a good performance of the proposed control strategy. The nonlinear controller has a faster tracking speed, higher quality of dynamic performance, and a total harmonic current distortion (THDi) less than 5% to meet the IEEE 519-2014 standard.","PeriodicalId":303656,"journal":{"name":"2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127504933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Transmitter and HVPS Architectures in the Ion-Cyclotron Radio Frequency System of DTT DTT离子回旋射频系统中的发射机和HVPS结构

2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON) Pub Date : 2022-06-14 DOI: 10.1109/MELECON53508.2022.9843042

Sebastian N. Piras, S. Bifaretti, S. Ceccuzzi, G. Ravera

{"title":"Transmitter and HVPS Architectures in the Ion-Cyclotron Radio Frequency System of DTT","authors":"Sebastian N. Piras, S. Bifaretti, S. Ceccuzzi, G. Ravera","doi":"10.1109/MELECON53508.2022.9843042","DOIUrl":"https://doi.org/10.1109/MELECON53508.2022.9843042","url":null,"abstract":"The design choices for the conversion of electrical energy into radio frequency (RF) waves is critically reviewed in this paper to conceive the most suitable architectures for RF transmitters in nuclear fusion. Ion Cyclotron Resonance Heating (ICRH) systems, using RF waves to heat fusion plasmas, present specific and demanding requirements in terms of power supplies that are tackled here with reference to the DTT, a new advanced fusion machine currently under construction. After the selection of the technology for the amplification stages of ICRH transmitters, the electrical specifications of the power supplies are determined on the basis of several parameters such as amplification, efficiency and loading conditions. The study presented in this paper concerns the choice of the most suitable architecture of the high voltage power supplies. It is based on available literature and technical documentation as well as on the calculation of operational points for the high-power amplification stages in mismatching conditions. Several possible solutions have been analyzed but the peculiar needs of ICRH system, such as the high performance in terms of accuracy, stability and fast response, lead to the adoption of unconventional solutions, resulting in a custom design. Finally, some alternatives and improvements are proposed.","PeriodicalId":303656,"journal":{"name":"2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125436442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Techno-Economic Analysis of Port Renewable Energy Communities 港口可再生能源社区的技术经济分析

2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON) Pub Date : 2022-06-14 DOI: 10.1109/MELECON53508.2022.9843022

R. Trevisan, E. Ghiani, S. Ruggeri, S. Mocci, E. D. Tuglie, F. Pilo

引用次数: 2

Machine Learning for Model Predictive Control of Cascaded H-Bridge Inverters 级联h桥逆变器模型预测控制的机器学习

2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON) Pub Date : 2022-06-14 DOI: 10.1109/MELECON53508.2022.9842941

Francesco Simonetti, G. D. Di Girolamo, A. D’innocenzo, Carlo Cecati

引用次数: 2

3D Additive Manufacturing of Tapered EBG Layers for a Resonant-Cavity Antenna 谐振腔天线锥形EBG层的三维增材制造

2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON) Pub Date : 2022-06-14 DOI: 10.1109/MELECON53508.2022.9843130

C. Ponti, P. Baccarelli, S. Ceccuzzi, G. Schettini

{"title":"3D Additive Manufacturing of Tapered EBG Layers for a Resonant-Cavity Antenna","authors":"C. Ponti, P. Baccarelli, S. Ceccuzzi, G. Schettini","doi":"10.1109/MELECON53508.2022.9843130","DOIUrl":"https://doi.org/10.1109/MELECON53508.2022.9843130","url":null,"abstract":"3D Fusion Deposition Modelling (FDM) technique is applied, in combination with numerical machining technique, to the fabrication of an Electromagnetic Band-Gap (EBG) multilayer used as superstrate of a Resonant Cavity Antenna (RCA). The primary source of the RCA is a rectangular waveguide WR90 in the X-band, and it is backed by a metallic plate, to form a cavity with the EBG placed above, which behaves as a partially reflecting surface. The EBG superstate is designed alternating three dielectric and planar layers, through materials with a permittivity contrast, i.e., by alternating layers having a high permittivity to a layer with low permittivity. This scheme gives to the EBG material a broadband response. In the in-plane design, each layer is shaped as a tapered grid of rectangular holes, to reduce the field scattered at the edge of the cavities, and thus lowering the Side Lobe Level in the antenna radiation patterns. The fabrication of the low-permittivity layer has been performed with additive manufacturing, through a PLA filament which has a relative permittivity of 2.76. The choice of PLA over ABS filament as printing material has been dictated by the different handling of the inner parts of the fabricated samples by the 3D printer. The high-permittivity layers of the superstate, instead, are fabricated from pre-formed vetronite layers, shaping the grid layout through numerically controlled machining technique. The antenna prototype has been measured in anechoic chamber, and experimental results are in very good agreement with the numerical simulations.","PeriodicalId":303656,"journal":{"name":"2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128746245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Model Predictive Control for Tokamak Central Solenoid Power Supply 托卡马克中央电磁电源模型预测控制

2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON) Pub Date : 2022-06-14 DOI: 10.1109/MELECON53508.2022.9843021

C. Terlizzi, S. Bifaretti, A. Lampasi

引用次数: 2

On the participation of demand-side resources on the operation of small power systems 论需求侧资源对小电力系统运行的参与

2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON) Pub Date : 2022-06-14 DOI: 10.1109/MELECON53508.2022.9842940

Fábio Pessoa, Á. Gomes

{"title":"On the participation of demand-side resources on the operation of small power systems","authors":"Fábio Pessoa, Á. Gomes","doi":"10.1109/MELECON53508.2022.9842940","DOIUrl":"https://doi.org/10.1109/MELECON53508.2022.9842940","url":null,"abstract":"Economic and environmental purposes are guiding the transition to greener power systems. The process of going green will be time-consuming and challenging, and at all intermediate stages, the resources then available must be managed as efficiently as possible. For example, energy systems require more and more flexibility to integrate the widespread generating units based on renewable sources. But, some technical aspects, network adequacy and ability to deal with the power injections or the impacts on voltage profiles should also be adequately addressed. All challenges mentioned above are even more intense for small isolated energy systems such as small isolated islands. Production variations, loss of generators, or any other event are more impactful in these scenarios, requiring adequate analysis. This work aims to evaluate the behaviour of the electrical system of a small isolated island in the face of a substantial increase in generation based on variable renewable sources (solar and wind). Namely, the assessment covers the role of demand-response and storage actions in the operation of the island’s electrical system and the impacts on voltage profiles and network overload. The main results show that despite the voltage maintaining an adequate profile, it may be necessary to increase distribution infrastructure capacity. Both demand response and storage may positively contribute to the operation of the electrical system. The renewable energy curtailment decreases, the thermal power plant can be operated in a more efficient way, and it is possible to smooth out fluctuations resulting from increased contributions from wind and solar energy.","PeriodicalId":303656,"journal":{"name":"2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124773327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0