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High frequency converter topologies suitable for more electric aircraft 适合更多电动飞机的高频转换器拓扑结构
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577319
A. Dannier, G. Brando, I. Spina, A. Raciti, S. Rizzo, G. Susinni
{"title":"High frequency converter topologies suitable for more electric aircraft","authors":"A. Dannier, G. Brando, I. Spina, A. Raciti, S. Rizzo, G. Susinni","doi":"10.23919/AEIT.2018.8577319","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577319","url":null,"abstract":"In the last years the aerospace industry has put a growing effort to develop on-board electrification. The difficulties, which have emerged to implement the transition to the future aircraft, concern above all the constraints to be respected for aircraft applications (reliability, small size, reduced maintenance time, etc.). The present paper proposes to analyze and discuss the power devices and suitable converter topologies that bring the requirements of the airborne applications, especially devoted to match with the reliability and performance issues.","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":"123952519","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
Condition monitoring of gas-turbine electric power units using the H-infinity Kalman Filter 基于h -∞卡尔曼滤波的燃气轮机发电机组状态监测
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577437
G. Rigatos, N. Zervos, D. Serpanos, V. Siadimas, P. Siano, M. Abbaszadeh
{"title":"Condition monitoring of gas-turbine electric power units using the H-infinity Kalman Filter","authors":"G. Rigatos, N. Zervos, D. Serpanos, V. Siadimas, P. Siano, M. Abbaszadeh","doi":"10.23919/AEIT.2018.8577437","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577437","url":null,"abstract":"The article proposes a method for fault diagnosis and for detection of cyber-attacks in thermal power units that consist of a gas-turbine and a synchronous generator, after making use of the H-inflnity Kalman Filter. By performing approximate linearization in the dynamic model of the power system, through Taylor series expansion and through the computation of Jacobian matrices, the application of the H-inflnity Kalman Filter as a robust state estimator is possible. The H-inflnity Kalman Filter stands for a model of the fault-free functioning of the system and by subtracting from its outputs the outputs of the power unit the residuals’sequence is generated. Next, it is shown that the sum of the square of the residuals vectors being weighted by the inverse of the residuals’ covariance matrix, is a stochastic variable that follows the x2 distribution. Using the confidence intervals of the $chi_2$ distribution one can define fault thresholds that indicate reliably the existence of a failure in the power system or the appearance of a cyberattack. Moreover, by applying the statistical test separately to the individual components of the power unit, fault isolation can be performed.","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":"116928528","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
Concept Analysis and Design of a 9-Phase Permanent Magnet Synchronous Machine 九相永磁同步电机的概念分析与设计
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577431
Laurenz Tippe, J. Kammermann, I. Bolvashenkov, H. Herzog
{"title":"Concept Analysis and Design of a 9-Phase Permanent Magnet Synchronous Machine","authors":"Laurenz Tippe, J. Kammermann, I. Bolvashenkov, H. Herzog","doi":"10.23919/AEIT.2018.8577431","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577431","url":null,"abstract":"This paper presents a design approach for a multiphase electrical machine with surface mounted permanent magnets. The number of phases is chosen to be nine, which ensures to meet future requirements on electrical machines designed for mobile applications. Winding design considerations will be taken into account, focusing on the specific case of concentrated windings throughout the design process. The prime parameter is represented by the number of slots per pole and phase. It is shown that specific conditions must be met in order to design a symmetrical two-layer winding. Out of the entire quantity of possible numbers of slots per pole and phase, 3/26 will be chosen as the basis of this design process. Starting with the given specification of an apparent power as high as 11 kVA, the design process will be executed iteratively, leading to the final machine design. In order to gain deeper knowledge about the machine, a Finite-Element-Analysis (FEA) is generated and compared to the results of analytical calculations.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"46 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":"117130442","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
High-Speed Machines: Typologies, Standards, and Operation Under PWM Supply 高速机器:类型，标准和PWM供电下的操作
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577297
R. Leuzzi, V. Monopoli, F. Cupertino, G. Brando, A. Dannier, I. Spina, A. D. Pizzo, A. Tommaso, V. Castiglia, G. Schettino, C. Nevoloso, R. Miceli
{"title":"High-Speed Machines: Typologies, Standards, and Operation Under PWM Supply","authors":"R. Leuzzi, V. Monopoli, F. Cupertino, G. Brando, A. Dannier, I. Spina, A. D. Pizzo, A. Tommaso, V. Castiglia, G. Schettino, C. Nevoloso, R. Miceli","doi":"10.23919/AEIT.2018.8577297","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577297","url":null,"abstract":"This paper presents an overview of the most recent state of the art in the field of high-speed electric machines fed through high-frequency converters. This type of systems is rapidly wide spreading in aeronautical and automotive applications, as well as microturbines. Each typology has its own advantages and downsides, which are analytically presented in this paper. Some types of high-speed electric machines require high-frequency voltage supply, highly stressing the dielectric materials of the winding insulation system. For this reason, in high-speed electric drives, premature failure may occur and a reduction of the total system reliability has been observed in the past years. Such issues are comprehensively investigated in this paper.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"7 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":"115510110","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: 12
Developed Quasi Z-Source Inverter Based on Diode-Cells: Analysis and Simulation 基于二极管电池的准z源逆变器的研制:分析与仿真
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577448
S. Laali, E. Babaei, C. Buccella, Carlo Cecati
{"title":"Developed Quasi Z-Source Inverter Based on Diode-Cells: Analysis and Simulation","authors":"S. Laali, E. Babaei, C. Buccella, Carlo Cecati","doi":"10.23919/AEIT.2018.8577448","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577448","url":null,"abstract":"In this paper, the developed quasi Z-source inverter QZSI) based on new diode-cell is proposed. This topology consists of n numbers of the proposed diode-cell. The proposed inverter is completely analyzed in three states: two-cell QZSI, three-cell QZSI and n-cell QZSI. In addition, the equations of the capacitors voltage stress, diodes voltage stress, boost factor, dc-link current, inductors current and diodes current are calculated. The ability of obtaining a desired value of the boost factor without using any additional active elements is the main advantage of this inverter. Moreover, decreasing the value of inductors current, diodes current and dc-link current by increasing the number of used diode-cells are the other advantages of the proposed Z-source inverter. Finally, the correct issues of the presented analyses are reconfirmed by using the simulation results in EMTDC/PSCAD software.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"21 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":"123525155","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
Towards an AMTEC-like device based on non-alkali metal for efficient, safe and reliable direct conversion of thermal to electric power 迈向一种基于非碱金属的类似amtec的装置，实现高效、安全、可靠的直接热电转换
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577462
G. Tumminelli, S. F. Bonura, L. Sciortino, R. Candia, U. L. Cicero, F. Santoro, A. Collura, M. Barbera
{"title":"Towards an AMTEC-like device based on non-alkali metal for efficient, safe and reliable direct conversion of thermal to electric power","authors":"G. Tumminelli, S. F. Bonura, L. Sciortino, R. Candia, U. L. Cicero, F. Santoro, A. Collura, M. Barbera","doi":"10.23919/AEIT.2018.8577462","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577462","url":null,"abstract":"Alkali Metal ThermoElectric Converters directly convert heat into electric energy and have promising applicability in the field of sustainable and renewable energy. The high theoretical efficiency, close to Carnot's cycle, the lack of moving parts, and the interesting operating temperature range drive the search for new materials able to ensure safe and reliable operation at competitive costs.The present work focuses on the design of a non-alkali metal based cell and on the fabrication of a testing device to validate the design work. The selection of a new operating fluid for the cell improves durability, reliability and safety of the device. Finally, we discuss possible applications to already existing thermal energy sources.","PeriodicalId":413577,"journal":{"name":"2018 AEIT International Annual Conference","volume":"59 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":"115376718","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
The University of Genoa Smart City Demo Site 热那亚大学智慧城市演示网站
2018 AEIT International Annual Conference Pub Date : 2018-10-01 DOI: 10.23919/AEIT.2018.8577374
S. Bracco, M. Brignone, F. Delfino, P. Laiolo, R. Procopio
{"title":"The University of Genoa Smart City Demo Site","authors":"S. Bracco, M. Brignone, F. Delfino, P. Laiolo, R. Procopio","doi":"10.23919/AEIT.2018.8577374","DOIUrl":"https://doi.org/10.23919/AEIT.2018.8577374","url":null,"abstract":"The present contribution is devoted to describe in detail the Smart City Sustainable Energy Living Lab (LL) that the University of Genoa has conceived and positioned inside its Savona Campus research and teaching facilities. Such LL relies on the research and demonstration activities related to the use of special infrastructures as the Smart Polygeneration Microgrid (SPM) and Smart Energy Building (SEB), built with the fundamental contribution of the Italian Ministry of Education, University and Research and the Ministry for Environment, Land and Sea Protection. The LL is jointly operated with the Italian DSO Enel S.p.A. as an “open air” demo site for the testing of on grid/off grid electrical transitions (Sustainable Urban Energy Island) and of potentially new services strictly related to the wide deployment of “e-city” technological solutions (V2G, V2H, e-home and smart appliances). The present paper is mainly focused on the model developed to study a portion of the SPM in islanded configuration; the main results of the analysis are here reported and discussed in order to highlight stability and load sharing issues.","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":"129928283","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
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
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