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Model based resilience assessment and threats mitigation: a sensitivity based approach 基于模型的复原力评估和威胁缓解:基于敏感性的方法
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577285
E. Ciapessoni, D. Cirio, A. Pitto, S. Massucco, M. Sforna, P. Marcacci
{"title":"Model based resilience assessment and threats mitigation: a sensitivity based approach","authors":"E. Ciapessoni, D. Cirio, A. Pitto, S. Massucco, M. Sforna, P. Marcacci","doi":"10.23919/AEIT.2018.8577285","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577285","url":null,"abstract":"Extreme weather events can determine large load disruptions on power systems; this calls for the analysis of the vulnerabilities to natural threats which may cause multiple, dependent contingencies. Given the high social and economic costs of such disruptions, the Transmission System Operators (TSOs) are interested in predicting these potential critical scenarios and in applying suitable preventive and/or corrective countermeasures to increase system resilience. The paper presents an in-depth resilience assessment methodology suitable, in operational planning mode, to predict the most risky contingencies which will affect the power system and, in the engineering mode, to analyse “what if” scenarios, by evaluating the system response under different assumptions for threat intensity and component vulnerability. The paper also provides a framework for operational and hardening countermeasures which can boost system resilience. In particular, the wet snow storm is the threat under study, and two mitigation measures are accounted for: the ice-phobic coatings of line conductors and the preventive redispatching of conventional generators to assure the minimum anti-icing currents. The sensitivity analyses carried out for different threat intensities on a model of the Italian EHV grid can help identify adequate mitigation measures.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"43 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":"124461542","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: 5
HVDC Cables Along with Highway Infrastructures: the “Piedmont-Savoy” Italy-France Intertie 高压直流电缆与公路基础设施:“皮埃蒙特-萨沃伊”意大利-法国互联
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577356
R. Benato, A. Chiarelli, S. Sessa, R. D. Zan, M. Rebolini, M. Pazienza
{"title":"HVDC Cables Along with Highway Infrastructures: the “Piedmont-Savoy” Italy-France Intertie","authors":"R. Benato, A. Chiarelli, S. Sessa, R. D. Zan, M. Rebolini, M. Pazienza","doi":"10.23919/AEIT.2018.8577356","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577356","url":null,"abstract":"The rationalization of territory resources draws the scientific society attention to the possibilities given by the highway and railway infrastructures (planned or existing) in order to install high voltage direct/alternate current insulated cables. The full compatibility of such synergy “highway/railway transport-electric energy transmission” involves different engineering branches. This topic has been investigated in the last ten years by means of feasibility studies published in scientific papers and technical brochures. These studies have eventually found a real and important application in the future ±320 kV High Voltage Direct Current interconnection between France and Italy named “Piedmont-Savoy” which will constitute a further strengthening of the Pan-European grid.","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":"130718585","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: 6
Comparing control systems performance in increasing the Hosting Capacity of distribution networks 提高配电网承载能力的控制系统性能比较
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577325
Giacomò Vigan, M. Rossi, D. Moneta
{"title":"Comparing control systems performance in increasing the Hosting Capacity of distribution networks","authors":"Giacomò Vigan, M. Rossi, D. Moneta","doi":"10.23919/AEIT.2018.8577325","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577325","url":null,"abstract":"The increase of Renewable Energy Sources (RES) in distribution networks forces the investigation of innovative control solutions. The performance of those solutions can be often evaluated with the use of specific Key Performance Indicators (KPIs), of which the increase of Hosting Capacity (HC) is one of the most important. The possibility to compare the performance of many control solutions in different scenarios, by the use of these indicators, is important to foster their implementation, since network operators have the necessity to adopt solutions which are replicable and adaptable to continuously-changing and non-predictable scenarios. For these reasons, three Power Flow and Optimal Power Flow engines have been integrated within an algorithm for the HC calculation and applied in a test case. The obtained results are compared with a developed analytical method for the HC calculation, which allows to speed up the calculation and to better identify the correlation between network characteristics and HC values.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"19 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133135880","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: 2
Smart Energy Management of a Prosumer for a Better Environment Safeguard 为生产消费者提供智能能源管理，更好地保护环境
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577434
F. Muzi, L. Calcara, S. Sangiovanni, M. Pompili
{"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}
引用次数: 9
Load Flexibility Supply via Participation in the Italian Balancing Market: Preliminary Economic Evaluations 通过参与意大利平衡市场的负荷灵活性供应:初步经济评估
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577328
M. Benini, S. Canevese, Angelo Cavaliere, A. Gatti
{"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}
引用次数: 2
Charging Transient for Fault Location: Analytical Method versus Artificial Neural Network 充电暂态故障定位:分析方法与人工神经网络
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577407
R. Benato, S. Sessa, G. Rinzo, M. Poli
{"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}
引用次数: 0
Power Quality Assessment of Grid Connected Photovoltaic System on Power Factor 基于功率因数的并网光伏系统电能质量评价
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577408
A. H. Faranadia, A. M. Omar, S. Noor
{"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}
引用次数: 0
Review of Some Effects of Harmonics in Nonsinusoidal Systems 非正弦系统中谐波的一些影响综述
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577451
M. Buzdugan
{"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}
引用次数: 2
Solid State Rectifier as Terahertz Detector 固体整流器作为太赫兹探测器
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577420
Sergio Massaioli, R. Rao, F. Palma
{"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}
引用次数: 0
Preliminary analysis of Hybrid-Electric propulsion system integrated in a regional aircraftt 某型支线飞机混合动力推进系统的初步分析
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577292
M. C. Cameretti, A. D. Pizzo, L. P. D. Noia, Michele Ferrara
{"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}
引用次数: 1
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