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Analysis of Transition Metal Oxides based Heterojunction Solar Cells with S-shaped J-V curves 过渡金属氧化物异质结太阳能电池的s型J-V曲线分析
2020 AEIT International Annual Conference (AEIT) Pub Date : 2020-09-23 DOI: 10.23919/AEIT50178.2020.9241142
D. Scire, Marco Bonadonna, Yifeng Zhao, P. Procel, O. Isabella, M. Zeman, R. Macaluso, M. Mosca, I. Crupi
{"title":"Analysis of Transition Metal Oxides based Heterojunction Solar Cells with S-shaped J-V curves","authors":"D. Scire, Marco Bonadonna, Yifeng Zhao, P. Procel, O. Isabella, M. Zeman, R. Macaluso, M. Mosca, I. Crupi","doi":"10.23919/AEIT50178.2020.9241142","DOIUrl":"https://doi.org/10.23919/AEIT50178.2020.9241142","url":null,"abstract":"The use of transition metal oxides for the selective carrier contact in the crystalline silicon solar cells technology is rising to interest for the excellent optoelectrical properties of these materials whose implementation, however, can result in lousy performing cells due to an S-shaped electrical characteristic. In this paper, we fabricated solar cells showing S-shaped J-V curve and carried out an analysis of the reasons of such behavior using a model involving the series of a standard cell equivalent circuit with a Schottky junction in order to explain these atypical performances. A good matching between the experimental measurements and the adopted theoretical model was obtained. The extracted parameters are listed and analyzed to shade light on the reasons behind the low-performance cells.","PeriodicalId":6689,"journal":{"name":"2020 AEIT International Annual Conference (AEIT)","volume":"31 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2020-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79335096","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
Digital Multi-Loop Control of a 3-Level Rectifier for Electric Vehicle Ultra-Fast Battery Chargers 电动汽车超高速电池充电器三电平整流器的数字多环控制
2020 AEIT International Annual Conference (AEIT) Pub Date : 2020-09-23 DOI: 10.23919/AEIT50178.2020.9241196
D. Cittanti, M. Gregorio, R. Bojoi
{"title":"Digital Multi-Loop Control of a 3-Level Rectifier for Electric Vehicle Ultra-Fast Battery Chargers","authors":"D. Cittanti, M. Gregorio, R. Bojoi","doi":"10.23919/AEIT50178.2020.9241196","DOIUrl":"https://doi.org/10.23919/AEIT50178.2020.9241196","url":null,"abstract":"This paper proposes a digital multi-loop control strategy for a 3-level unidirectional rectifier specifically targeted to electric vehicle (EV) ultra-fast charging applications. The basic operation of a 3-level rectifier is described and the state-space model of the complete system is explained, with particular focus on the mid-point current generation process. By means of an appropriate modeling of the delays and the discretization introduced by the digital control implementation, four controllers (i.e. dq-currents, DC-link voltage and mid-point voltage balancing loops) are analytically designed in the continuous time domain with conventional techniques. Ultimately, the proposed controller design procedure is tested on a 50 kW, 20kHzT-type rectifier, both in simulation and hardware-in-the-loop (HIL) environments, verifying the dynamical performance of all control loops.","PeriodicalId":6689,"journal":{"name":"2020 AEIT International Annual Conference (AEIT)","volume":"21 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2020-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82910406","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: 7
Laboratory Ageing Thermal Cycles of MV Cable Joints: results of different diagnostic techniques 中压电缆接头老化热循环:不同诊断技术的结果
2020 AEIT International Annual Conference (AEIT) Pub Date : 2020-09-23 DOI: 10.23919/AEIT50178.2020.9241197
J. Borghetto, A. Contin, A. Morotti, A. Pegoiani, G. Pirovano, Danilo Sirtori, C. Tornelli
{"title":"Laboratory Ageing Thermal Cycles of MV Cable Joints: results of different diagnostic techniques","authors":"J. Borghetto, A. Contin, A. Morotti, A. Pegoiani, G. Pirovano, Danilo Sirtori, C. Tornelli","doi":"10.23919/AEIT50178.2020.9241197","DOIUrl":"https://doi.org/10.23919/AEIT50178.2020.9241197","url":null,"abstract":"The article reports the results of a multi-year experimentation in progress at the RSE laboratories and aimed at an in-depth diagnostic analysis of the causes of failure responsible for the out-of-services which affect MV cable joints of most of the urban network in the summer periods. To this aim an experimental set-up consisting of twelve cables equipped with different types of joints were connected together to form a ring in short-circuit. The ring was energized at rated voltage and current cycles were applied by means of external coils in order to reproduce the daily load variation typical of a MV cable network. Felts were wrapped around the cables to simulate the reduced thermal conductivity of the soil during summer periods. Continuous monitoring of the degradation of the joints was carried out by Partial Discharge (PD, on-line and off-line) measurements, together with Frequency Dielectric Spectroscopy (FDS) and Dissipation Factor (DF) - measurements. Results of the experimentation are presented and discussed.","PeriodicalId":6689,"journal":{"name":"2020 AEIT International Annual Conference (AEIT)","volume":"81 9 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2020-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88028972","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
On the Impact of Heat Pumps Electric Load on the Power Consumption of Lampedusa 兰佩杜萨岛热泵电负荷对耗电量的影响
2020 AEIT International Annual Conference (AEIT) Pub Date : 2020-09-23 DOI: 10.23919/AEIT50178.2020.9241146
M. Bonomolo, M. Ippolito, G. Leone, R. Musca, Vincenzo Porgi, G. Zizzo, A. Cagnano, E. D. Tuglie
{"title":"On the Impact of Heat Pumps Electric Load on the Power Consumption of Lampedusa","authors":"M. Bonomolo, M. Ippolito, G. Leone, R. Musca, Vincenzo Porgi, G. Zizzo, A. Cagnano, E. D. Tuglie","doi":"10.23919/AEIT50178.2020.9241146","DOIUrl":"https://doi.org/10.23919/AEIT50178.2020.9241146","url":null,"abstract":"The present paper reports the results of a simulation study regarding the impact of the adoption of heat pumps for domestic hot water production in the island of Lampedusa (Italy). In the study, it has been assumed to replace electric storage water heaters with heat pumps at every dwelling of the about four thousand domestic end-users of the island and, in addition, to control the heat pump operation in order to enhance some parameters that characterize the quality of the generation and distribution system of the island (power peak, energy losses and voltage drop). According to the results of the simulations, while the replacement of electric storage water heaters with heat pumps is able to positively impact the island power system, the control of heat pumps, even if in great number, does not generate any evident additional advantage for the power system operation. These results are significant for better understanding potentiality and limits of Demand Response and Aggregation in the presence of high-efficiency devices.","PeriodicalId":6689,"journal":{"name":"2020 AEIT International Annual Conference (AEIT)","volume":"3 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2020-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89477411","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 Investigation of V2G Profitability with Robust Optimization and Bidding Price Heuristics 基于鲁棒优化和竞价启发式的V2G盈利能力研究
2020 AEIT International Annual Conference (AEIT) Pub Date : 2020-09-23 DOI: 10.23919/AEIT50178.2020.9241171
R. Vignali, L. Pellegrino, A. Gatti, S. Canevese
{"title":"An Investigation of V2G Profitability with Robust Optimization and Bidding Price Heuristics","authors":"R. Vignali, L. Pellegrino, A. Gatti, S. Canevese","doi":"10.23919/AEIT50178.2020.9241171","DOIUrl":"https://doi.org/10.23919/AEIT50178.2020.9241171","url":null,"abstract":"Over the last years the number of Electric Vehicles (EVs) has been growing more than expected, and a massive growth is foreseen for the next decade. An increase of consumption due to EV charging is then expected, with possible drawbacks, like undesired peaks, for distribution and transmission system operators. However, EVs are indeed storage systems, and, therefore, they can be employed to provide flexibility to the power system: this is known as the Vehicle-to-Grid (V2G) concept. This paper aims at investigating a V2G control strategy for the EV charging stations in a public or private parking lot, in order to provide flexibility services by participating in the Ancillary Service Market (ASM).The energy to be exchanged on the ASM, and also on the Day-Ahead Market (DAM), is obtained by solving an optimal control problem that maximizes the EV charging station operator’s daily profit while ensuring the desired minimum State of Charge (SoC) of each EV at the end of the recharge. The cycling aging of EV batteries is considered in particular via the price of the discharged energy. The problem is formulated in a robust way to take into account uncertainties on ASM bid acceptance. The bidding prices on the ASM act as problem inputs, and therefore have to be suitably chosen. The different heuristic strategies proposed here for this choice are based on an analysis performed on one-year data of the Italian ASM. The mixed heuristic and robust approach yields different economic results, depending on the adopted bidding price strategy. The results provide interesting input for further developments of business cases for V2G applications.","PeriodicalId":6689,"journal":{"name":"2020 AEIT International Annual Conference (AEIT)","volume":"2 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2020-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90434496","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: 3
Control and Protection Strategies for a Universal Power Quality SMES Compensator 通用电能质量中小型补偿器的控制与保护策略
2020 AEIT International Annual Conference (AEIT) Pub Date : 2020-09-23 DOI: 10.23919/AEIT50178.2020.9241122
D. Raggini, R. Chiumeo, A. Clerici, C. Gandolfi, Daniele Gargantini
{"title":"Control and Protection Strategies for a Universal Power Quality SMES Compensator","authors":"D. Raggini, R. Chiumeo, A. Clerici, C. Gandolfi, Daniele Gargantini","doi":"10.23919/AEIT50178.2020.9241122","DOIUrl":"https://doi.org/10.23919/AEIT50178.2020.9241122","url":null,"abstract":"The paper describes the control and protection strategies of a device conceived to improve Power Quality in Low Voltage (LV) electrical distribution grid. The device, studied in the frame of the research project “DRYSMES4GRID”, acts as an active filter, compensating load harmonics and network disturbances (voltage dips and micro-interruptions) thanks to a Superconducting Magnetic Energy Storage system (SMES).The control logics are presented with a particular focus on detecting and overcoming overload or internal and external fault condition. The effectiveness of the proposed control strategies has been investigated in ATPdraw simulation environment, using a detailed network and device model.","PeriodicalId":6689,"journal":{"name":"2020 AEIT International Annual Conference (AEIT)","volume":"133 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2020-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75695089","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
Economic analysis of a Power-to-Gas pilot plant within the Italian energy transition framework 意大利能源转型框架内电力转气试点工厂的经济分析
2020 AEIT International Annual Conference (AEIT) Pub Date : 2020-09-23 DOI: 10.23919/AEIT50178.2020.9241156
Corine Nsangwe Businge, P. Grisi, A. Gelmini
{"title":"Economic analysis of a Power-to-Gas pilot plant within the Italian energy transition framework","authors":"Corine Nsangwe Businge, P. Grisi, A. Gelmini","doi":"10.23919/AEIT50178.2020.9241156","DOIUrl":"https://doi.org/10.23919/AEIT50178.2020.9241156","url":null,"abstract":"This work aims at evaluating the economic sustainability of a power-to-gas pilot plant, with reference to the Italian context and to the medium-long term. The study is based on the energy scenarios of the Italian National Climate and Energy Plan (NECP) and assumes that the plant participates in the ancillary services markets. The study assesses the economic barriers and the main factors affecting the competitiveness of power-to-gas. The results show that, while power-to-gas being a technically feasible solution to support the flexibility of the power system, the economics of the pilot plant are heavily affected by the cost of components and operating cost. The results also highlight the need for suitable policies and financial support aiming at enhancing favourable operating conditions for pilot applications of the technology.","PeriodicalId":6689,"journal":{"name":"2020 AEIT International Annual Conference (AEIT)","volume":"307 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2020-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75676428","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
Analysis of Power Generation and Load Change Under the Influence of Lockdown Based on COVID-19 Epidemic 基于新冠肺炎疫情的封锁影响下发电负荷变化分析
2020 AEIT International Annual Conference (AEIT) Pub Date : 2020-09-23 DOI: 10.23919/AEIT50178.2020.9241106
Yao Lu, Ruchang Zhou, Jie Wang
{"title":"Analysis of Power Generation and Load Change Under the Influence of Lockdown Based on COVID-19 Epidemic","authors":"Yao Lu, Ruchang Zhou, Jie Wang","doi":"10.23919/AEIT50178.2020.9241106","DOIUrl":"https://doi.org/10.23919/AEIT50178.2020.9241106","url":null,"abstract":"The wide spread of COVID-19 is seriously affecting countries around the world. The lockdown policy has facilitated a profound impact on the power industry. Specifically, the article takes China as an example to explain the development of COVID-19 epidemic. Then it analyzes the influence and specific reasons of energy and fuel provision under lockdown. The article focuses on the changes of generation, load and stability of power system with causes. Furthermore, it looks forward to the impacts of lockdown policy on the power industry in the future.","PeriodicalId":6689,"journal":{"name":"2020 AEIT International Annual Conference (AEIT)","volume":"4 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2020-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75676669","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
New flexibility services and technologies: ENEL experiences in Italy 新的灵活性服务和技术:ENEL在意大利的经验
2020 AEIT International Annual Conference (AEIT) Pub Date : 2020-09-23 DOI: 10.23919/AEIT50178.2020.9241153
G. Campagna, Alessandro Landini, D. Stefanelli, V. Tommasi, Bernardo Bernabei, M. Cantu, A. Giovannelli, F. Giancola
{"title":"New flexibility services and technologies: ENEL experiences in Italy","authors":"G. Campagna, Alessandro Landini, D. Stefanelli, V. Tommasi, Bernardo Bernabei, M. Cantu, A. Giovannelli, F. Giancola","doi":"10.23919/AEIT50178.2020.9241153","DOIUrl":"https://doi.org/10.23919/AEIT50178.2020.9241153","url":null,"abstract":"The achievement of the objectives set by the 2015 United Nations Climate Change Conference and the National Energy and Climate Plan entails a strong shift in the paradigm of electricity generation as well as supply of ancillary services necessary to guarantee the stability of the electrical system. To meet these needs, globally several initiatives are underway with the aim of identifying a series of potential solutions, already in place or that can be adopted in the near future. The article presents Enel’s involvement and the projects the company is working on.","PeriodicalId":6689,"journal":{"name":"2020 AEIT International Annual Conference (AEIT)","volume":"185 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2020-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73378081","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
Consumption based-only load forecasting for individual households in nanogrids: a case study 纳米电网中单个家庭仅基于消费的负荷预测:一个案例研究
2020 AEIT International Annual Conference (AEIT) Pub Date : 2020-09-23 DOI: 10.23919/AEIT50178.2020.9241127
M. Caliano, A. Buonanno, G. Graditi, A. Pontecorvo, Gianluca Sforza, M. Valenti
{"title":"Consumption based-only load forecasting for individual households in nanogrids: a case study","authors":"M. Caliano, A. Buonanno, G. Graditi, A. Pontecorvo, Gianluca Sforza, M. Valenti","doi":"10.23919/AEIT50178.2020.9241127","DOIUrl":"https://doi.org/10.23919/AEIT50178.2020.9241127","url":null,"abstract":"Electricity load forecasting plays an important role in planning and a vital role in the operational management of an electric power system based on smart grids. In this work, several data-driven approaches are used to forecast the individual electricity demand for the subsequent hour of three Italian households in a nanogrid context. For each user, the tested prediction models exploit only the historic series of total electricity consumption. The results show similar performances in all models implemented. Despite a widespread delay, the predictions follow the measurement trend well, while also highlighting the particular difficulty of predicting peak values.","PeriodicalId":6689,"journal":{"name":"2020 AEIT International Annual Conference (AEIT)","volume":"48 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2020-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74721674","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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