2018 AEIT International Annual Conference最新文献

{"title":"Smart Energy Management of a Prosumer for a Better Environment Safeguard","authors":"F. Muzi, L. Calcara, S. Sangiovanni, M. Pompili","doi":"10.23919/AEIT.2018.8577434","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577434","url":null,"abstract":"This article deals with the implementation of an automated simulator for the optimization of power-flows in blocks of buildings (prosumers) by controlling local generation, storage and consumptions in real-time and simultaneously. Among the advantages of the proposed multi-agent saver, a special emphasis is given to the benefits that may be achieved in carbon reduction and consequent environmental protection. The simulator can be operated in either “Economy” mode to maximize economic profit, or “Energy” mode, for better energy saving. The selection of the ideal strategy depends on a number of factors, among them weather forecasts, kilowatt-hour current rates and the random mechanism of electricity demand associated to the different activities performed within the building.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"220 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121472511","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}

{"title":"Load Flexibility Supply via Participation in the Italian Balancing Market: Preliminary Economic Evaluations","authors":"M. Benini, S. Canevese, Angelo Cavaliere, A. Gatti","doi":"10.23919/AEIT.2018.8577328","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577328","url":null,"abstract":"The increasing generation share from non-programmable renewable energy sources increases the need for resources for Ancillary Service (AS) supply, and also the need for higher performance from them, e.g. higher ramp rates and activation speed. A possible solution to collect new (and performing) resources, especially for load-frequency regulation, is to open the Ancillary Service Market (ASM) to suppliers other than the traditional ones, i.e., the large conventional power plants. In particular, the flexibility of load units can be exploited. In this paper, Demand Response (DR) based on load reduction offered as a balancing service in the Italian ASM is considered, with reference to a constant absorption profile. Simulations show that, by assuming fixed-price offers and a single activation of the DR service per day, annual net revenues can reach up to some per cent of the load energy bill; similar results can also be achieved by using, as offer prices, averages of the historical ASM accepted prices or samples from their statistical distribution.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"420 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116229359","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}

{"title":"Charging Transient for Fault Location: Analytical Method versus Artificial Neural Network","authors":"R. Benato, S. Sessa, G. Rinzo, M. Poli","doi":"10.23919/AEIT.2018.8577407","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577407","url":null,"abstract":"In this paper, two single-ended algorithms for fault location are presented with reference to the unearthed operated sub-transmission Italian grid (60kV). Both algorithms deals with the correlation between the charging frequency of sound phases to ground capacitances with the fault position. In the first one, the frequency response of a lumped parameter circuit in the Laplace domain is linked to the fault distance. In the second one, the frequency spectra of the transient current waveforms are used as a database for the training of an Artificial Neural Network, which identifies the fault distance by analysing the input data. The fault location accuracy of the two proposed methods are compared in order to reveal strengths and weakness of both algorithms. The developed procedures have been applied to an overhead line modelled in EMTP-rv environment, whereas the fault location algorithm has been implemented in Matlab environment.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123596324","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}

{"title":"Power Quality Assessment of Grid Connected Photovoltaic System on Power Factor","authors":"A. H. Faranadia, A. M. Omar, S. Noor","doi":"10.23919/AEIT.2018.8577408","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577408","url":null,"abstract":"This paper describes prediction of power factor (PF) on Grid Connected Photovoltaic (GCPV) power systems towards Malaysia climate variations (solar irradiance) by using Mathematical model. The mathematical model was developed by using a phasor diagram under three different cases. Each case presents different possibilities of GCPV system current flow and power factor characteristic towards solar irradiance condition. Each mathematical equation was derived from a phasor diagram which utilize solar irradiance as the input and power factor as the output. The verification on the accuracy of the proposed model is conducted based on real data measurement on the GCPV system which located at Green Energy Research Center (GERC), University of Technology MARA (UiTM) Shah Alam, Malaysia. Based on the comparative study and statistical approach, it shows a good agreement between actual and prediction data. Besides, the development of the proposed model provides an effective method for prediction mainly on the power factor characteristic of GCPV system and feasible in time under the same accuracy.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125225538","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}

{"title":"Review of Some Effects of Harmonics in Nonsinusoidal Systems","authors":"M. Buzdugan","doi":"10.23919/AEIT.2018.8577451","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577451","url":null,"abstract":"This paper presents a few effects of harmonics in nonsinusoidal systems, focusing especially on power efficiency. In the introductory section some general effects of harmonics in power systems are presented. Considering the importance of harmonics in different power definitions, the following section presents a brief review of the debate which lasted almost one century on this matter, debate which culminated with the most recent IEEE Standard 1459-2010. The third section presents a case study performed at the secondary windings of a transformer substation which supplies a highly polluted industrial environment, using an electrical network analyzer. This last section reveals that the power analyzer used, as most of the metering instrumentation available is designed and built following the longstanding tradition and not the recent IEEE standard. The main objective of this paper is to perform a short review of power definitions in nonsinusoidal systems and to present the key role of harmonics.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127528453","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}

{"title":"Solid State Rectifier as Terahertz Detector","authors":"Sergio Massaioli, R. Rao, F. Palma","doi":"10.23919/AEIT.2018.8577420","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577420","url":null,"abstract":"We present a new solid state rectifier, compatible with CMOS integrated circuit, suitable to direct conversion of terahertz radiation, at room temperature. The structure creates a rectenna, consists in a truncated conical helix extruded from a planar spiral and connected to a nanometric metallic whisker at one of its edges. The whisker reaches the gate of a MOS-FET transistor. Rectification can be obtained by the self-mixing effect occurring into the plasma waves generate underneath the gate. The proposed solution is easy to integrate with existing imaging systems. No need of scaling toward very scaled and costly technological node is required, since the plasma wave are not dependent on the gate extension. The remaining electronics should only provide the necessary integrated readout. A theoretical explanation of the self-mixing process, and TCAD simulations showing the onset of the DC potential are presented. An additional detector structure, the double barrier rectifier, is also presented for comparison.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126445301","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}

{"title":"Preliminary analysis of Hybrid-Electric propulsion system integrated in a regional aircraftt","authors":"M. C. Cameretti, A. D. Pizzo, L. P. D. Noia, Michele Ferrara","doi":"10.23919/AEIT.2018.8577292","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577292","url":null,"abstract":"Aeroengine manufacturers must continuously develop new high-performance engines, in terms of both specific fuel consumption and pollutant emissions. During the combustion of kerosene, CO2 and lower amounts of SO2, CO, NOx and hydrocarbons are produced; those gases are directly or indirectly responsible for greenhouse effect. Large emission of NOx is produced by engines during the aircraft operation in airport. In the near future, the target in Europe for the aviation sector provides a reduction of SO% of NOx and 50% of CO2. For this reason, the hybrid-electric propulsion systems (HEPS) are becoming a viable alternative propulsion technology in the field of aviation, useful to guarantee a massive reduction of pollution. In the paper, the authors analyze and simulate a hybrid turbine/electric engine for a passengers regional aircraft, comparing the results in terms of pollutant and fuel consumption with the conventional thermal engine ones.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116719023","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}

{"title":"Evaluation of Joule Power Losses Reduction in Overhead Lines with Innovative Conductors","authors":"R. Benato, R. Caldon, M. Coppo, S. Sessa, G. Rinzo, D. Mimo","doi":"10.23919/AEIT.2018.8577302","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577302","url":null,"abstract":"Substitution of traditional overhead line conductors with innovative ones can play a key role in the reinforcement of the transmission and distribution electric grids. The paper presents some of the results of the CALAJOULE project cofinanced by the Ministry of Economic Development in the framework of the “Ricerca di Sistema” programme. The use of innovative conductors in the existing overhead lines could bring a great benefit in terms of energy loss reduction therefore increasing electric energy transmission and distribution efficiencies. The paper demonstrates and substantiates these considerations by means of two reference examples: the former pertaining to a high voltage overhead line (i.e. 220 kV) and the latter pertaining to a medium voltage one (i.e. 20 kV). The actualized costs of the energy losses for traditional and innovative conductors are computed and compared.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114304671","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}

{"title":"Collected experiences from the Fraunhofer Institute IFF’s Smart Grid Laboratory","authors":"P. Lombardi, C. Wenge, S. Balischewski, P. Komarnicki","doi":"10.23919/AEIT.2018.8577464","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577464","url":null,"abstract":"The integration of the volatile electric power generation from renewable energy sources into the electric grid will be one the main challenges of the 21st century. The scientific community agrees that different kinds of flexibility options (e.g. energy storage systems, demand side management programs, energy conversion) are necessary to allow a full integration of power generated by wind and sun. However, it is necessary to test these options before they are implemented into the grid. The collected experiences will be fundamental for improving their performance.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129756836","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}

{"title":"Raising awareness on climate-change related hazards that might impact electric infrastructures","authors":"P. Faggian, R. Bonanno","doi":"10.23919/AEIT.2018.8577318","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577318","url":null,"abstract":"There is an urgent need for an effective and harmonized framework to develop climate resilient solutions to ensure the necessary level of security in energy production and supply. Energetic sector will have to adapt not only to changes in mean climate but also it has to cope with an increased climate variability whose effects could hamper the security in energy production and supply with remarkable social and economic impacts. This study aimed to analyze the incremental changes of temperature and precipitations, and the changes of some extreme events such as droughts, storms and floods, wet-snow and cold- waves, as well as fire danger over Italy at medium and long terms.The investigation has been done on the basis of high- resolution climate models provided by three EU-funded Projects: ENSEMBLES (horizontal resolution of 25 km), Med-CORDEX and Euro-CORDEX (horizontal resolution of $0.11 ^{circ}$, about 12 km) under different green-house gas forcings. The climate change scenarios have been characterized by comparing the current climate (1971–2000) with medium (FUT1$2021-2050) and long term (FUT2 =2051-2080) future scenarios.The more significant results highlight a warmer and drier climate $(1- 1.5 ^{circ}mathrm{C})$, above all in summer with a temperature increase of about $2 ^{circ}mathrm{C}$ and a precipitation reduction of 20% by 2050. Extreme events have been investigated by using some threshold values to select particular weather conditions, and by computing some indicators (a sub-set of the ETCCDI indexes), specifically defined to describe extreme weather and climate events. The results highlight an exacerbation of the hazards, projected to become more serious in the second part of the century respect to the first one: the heat waves occurrences will likely increase of about 20 - 30% in the next decades, and 40 - 50% after the middle of the century; droughts are expected to become more frequent over time, increasing of about 5% and 10{- 20% in FUT1 and FUT2 respectively; storms and floods are projected to increase locally from 10% to 30%, specially over coast areas during spring and autumn seasons. Instead wet-snow events are expected to damp ranging from less than -5% to -10% over the century. Analogously cold waves are likely to reduce of about 10 - 20% and 30 - 40% in FUT1 and FUT2 scenarios. Lastly, it is expected a lengthening of fire season and an increase of fire danger of at least 20% by 2050 in most of Italy in summer.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"13 51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129352860","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}