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Grid Frequency Control: Interaction between Fast Regulations 电网频率控制:快速调节之间的相互作用
2022 AEIT International Annual Conference (AEIT) Pub Date : 2022-10-03 DOI: 10.23919/AEIT56783.2022.9951801
M. Rapizza, Silvia Maria Canevese, D. Cirio
{"title":"Grid Frequency Control: Interaction between Fast Regulations","authors":"M. Rapizza, Silvia Maria Canevese, D. Cirio","doi":"10.23919/AEIT56783.2022.9951801","DOIUrl":"https://doi.org/10.23919/AEIT56783.2022.9951801","url":null,"abstract":"The \"ultra-fast\" frequency regulation, which can be carried out e.g. by means of electrochemical storage systems, and another type of fast transient support provided by wind generators are two solutions, introduced by the Italian transmission system operator, to improve the quality of frequency regulation. This work analyzes, by means of dynamic simulations, the impact of these new control actions on the power system and their reciprocal interaction considering a future scenario of the Sardinian power system under a severe power disturbance.","PeriodicalId":253384,"journal":{"name":"2022 AEIT International Annual Conference (AEIT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123125297","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
Reducing the Curtailment of Photovoltaic Energy Production through Smart Electric Vehicle Charging 通过智能电动车充电减少光伏发电的弃电
2022 AEIT International Annual Conference (AEIT) Pub Date : 2022-10-03 DOI: 10.23919/AEIT56783.2022.9951712
Soheil Saadatmandi, G. Chicco, Francesco Giordano, M. Arnone
{"title":"Reducing the Curtailment of Photovoltaic Energy Production through Smart Electric Vehicle Charging","authors":"Soheil Saadatmandi, G. Chicco, Francesco Giordano, M. Arnone","doi":"10.23919/AEIT56783.2022.9951712","DOIUrl":"https://doi.org/10.23919/AEIT56783.2022.9951712","url":null,"abstract":"The current issues of climate change and air pollution are pushing the electricity sector to move towards the deployment of renewable energy sources. However, shifting from traditional to renewable energy resources like solar energy introduces new aspects and challenges. Weather dependency and the need for expensive storage infrastructure to cope with power fluctuations appear among the main aspects for effectively using solar energy. When storage cannot be used, in the presence of high diffusion of renewable energy it could be necessary to resort to energy curtailment in the peak hours of production. In this paper, we propose a methodology which helps the reduction of energy curtailment in the peak production hours of photovoltaic panels by controlling the charging power of electric vehicles connected to the grid without reaching the line loading limits and without exceeding the voltage magnitude limits in the nodes of the grid.","PeriodicalId":253384,"journal":{"name":"2022 AEIT International Annual Conference (AEIT)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125778381","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
Setup for HIL simulations of isolated microgrids at the Gridspertise LV Smart Grid Lab 在Gridspertise LV智能电网实验室设置孤立微电网的HIL模拟
2022 AEIT International Annual Conference (AEIT) Pub Date : 2022-10-03 DOI: 10.23919/AEIT56783.2022.9951819
G. Bianco, Lucio Barbato, Gianni Ceneri, Antonio Dell’Angelo, Domenico Demuro, L. Mascolo, Chiara Micillo, Francesco Renna, G. Sapienza
{"title":"Setup for HIL simulations of isolated microgrids at the Gridspertise LV Smart Grid Lab","authors":"G. Bianco, Lucio Barbato, Gianni Ceneri, Antonio Dell’Angelo, Domenico Demuro, L. Mascolo, Chiara Micillo, Francesco Renna, G. Sapienza","doi":"10.23919/AEIT56783.2022.9951819","DOIUrl":"https://doi.org/10.23919/AEIT56783.2022.9951819","url":null,"abstract":"Encouraged by the ongoing energy transition, the increasing widespread of the distributed energy sources (DERs) will become even more relevant in the next future, boosting the evolution of the distribution networks towards the smart grids concept. This change assumes further relevance if we consider the goal to improve the quality of the service, the need to be more customer-oriented and the increase of active actors operating on the grids over different levels. Operating the present distribution networks as smart grids requires a strong digitalization process, involving several components and functionalities, such as protection, control, automation and monitoring. The digital transformation is mainly accomplished by introducing Intelligent Electronic Devices (IEDs) whose conceptualization, design, testing and integration could be performed in suitably arranged laboratories. In this context, Gridspertise owns and operates two laboratories, located in Milano and Bari, in Italy, to perform research, development and testing activities on smart grids, on both Medium and Low voltage (MV and LV, respectively) levels. The paper focuses on the architecture that has been configured to control and automate isolated or weakly connected microgrids to enhance their stability and efficiency. Further, it provides a description of the main smart grid devices involved and how they have been integrated to operate in the real field conditions.","PeriodicalId":253384,"journal":{"name":"2022 AEIT International Annual Conference (AEIT)","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116590695","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
The new 36 kV standard voltage level to increase RES penetration in sub-transmission network 新的36千伏标准电压水平，以增加可再生能源在分输电网中的渗透
2022 AEIT International Annual Conference (AEIT) Pub Date : 2022-10-03 DOI: 10.23919/AEIT56783.2022.9951764
E. Carlini, C. Gadaleta, Alfonso De Cesare, M. Migliori, Chiara Giordano, S. Moroni
{"title":"The new 36 kV standard voltage level to increase RES penetration in sub-transmission network","authors":"E. Carlini, C. Gadaleta, Alfonso De Cesare, M. Migliori, Chiara Giordano, S. Moroni","doi":"10.23919/AEIT56783.2022.9951764","DOIUrl":"https://doi.org/10.23919/AEIT56783.2022.9951764","url":null,"abstract":"System efficiency and renewable technologies are the core elements of the energy transition, and their synergies are likewise important. In recent years the connection requests for RES power plants have significantly grown, mainly involving the High Voltage (HV) sub-transmission network. In this framework, the Italian Transmission System Operator (TSO) has designed novel technical and operational solutions allowing a secure and cost-efficient integration of new connections. This paper addresses the new 36 kV standard voltage level proposed for RES power plants with rated power lower than 100 MW. Furthermore, a representative case study on the southern areas of Italy is illustrated. Increase of RES penetration margin by exploitation of operation islands is also assessed.","PeriodicalId":253384,"journal":{"name":"2022 AEIT International Annual Conference (AEIT)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121489631","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 impacts of synthetic correlated generation of weather variables on adequacy analyses 综合相关生成天气变量对充分性分析的影响
2022 AEIT International Annual Conference (AEIT) Pub Date : 2022-10-03 DOI: 10.23919/AEIT56783.2022.9951820
G. Marco Tina, C. F. Nicolosi, D. Stefanelli
{"title":"The impacts of synthetic correlated generation of weather variables on adequacy analyses","authors":"G. Marco Tina, C. F. Nicolosi, D. Stefanelli","doi":"10.23919/AEIT56783.2022.9951820","DOIUrl":"https://doi.org/10.23919/AEIT56783.2022.9951820","url":null,"abstract":"Reducing carbon dioxide emissions caused by the production of electrical energy has made the decommissioning of coal-fired power plants a priority. The decommissioned fossil-fuelled power plants are therefore being replaced by renewable energy plants (RES) and other technologies useful for the energy transition, such as storage power plants. However, since RES generation depends on the randomness of weather variables, an even greater proliferation of RES increases the intermittency of electricity supply and thus jeopardises the coverage of electricity demand. This problem affects the adequacy of a power system. In this paper, an adequacy analysis for a one-bus power system is conducted and validated. Since power generation from renewable and conventional power plants depends on the combined and simultaneous effects of different weather variables, pairs of hourly values of solar radiation, air temperature, precipitation and wind speed are synthetically generated in a correlated manner using Monte Carlo simulations. The correlated weather variables are the inputs of photovoltaic (PV), wind, thermoelectric and hydropower generation models. These models, together with an electricity demand model, allow the calculation of adequacy indices needed to quantify the adequacy level of a given electricity system. This method is then repeatedby synthetically generating the weather variables without taking into account the correlation between them; thus, the adequacy indices are re-evaluated. Finally, the results of the adequacy indices obtained with the two different methods are compared. The Sicily market zone is used as a reference for the installed capacity and demand data. All simulations are carried out in the MATLAB environment (Copyright 2018 The MathWorks, Inc.) and in the PowerWorld simulator©.","PeriodicalId":253384,"journal":{"name":"2022 AEIT International Annual Conference (AEIT)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131556595","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
Voltage balancing algorithm of a MMC-like topology for pulsed power applications 脉冲功率应用中类似mmc拓扑的电压平衡算法
2022 AEIT International Annual Conference (AEIT) Pub Date : 2022-10-03 DOI: 10.23919/AEIT56783.2022.9951782
C. Terlizzi, Daniele Berardi, F. Santoro, A. Magnanimo, M. Teschke, S. Bifaretti
{"title":"Voltage balancing algorithm of a MMC-like topology for pulsed power applications","authors":"C. Terlizzi, Daniele Berardi, F. Santoro, A. Magnanimo, M. Teschke, S. Bifaretti","doi":"10.23919/AEIT56783.2022.9951782","DOIUrl":"https://doi.org/10.23919/AEIT56783.2022.9951782","url":null,"abstract":"The Modular Multilevel Converter (MMC) has become one of the most attractive topologies for high-power applications, such as power supplies for nuclear fusion generators. MMC is composed by identical Submodules (SMs), permitting an easy scalability, and provides a multilevel output voltage, thus it represents a promising alternative to replace the system supplied by the Flywheel Generator (FG) that provides electrical power to ASDEX Upgrade (AUG) Toroidal Field (TF) coils. Due to the pulsed DC operation of these coils and their high-power needs (up to 150 MW) for each experiment, an adapted version of the MMC has been modeled with some differences compared to conventional ones: SMs’ capacitors have been replaced with Supercapacitor (SC) modules to increase the amount of available stored energy while SMs belonging to different \"arms\" are interconnected to simplify their control and increase the reliability of the converter. Two of the main challenges of this topology consist in keeping balanced the series-connected SMs’ voltages and the parallel-connected SMs’ currents during its operation, which leads to an increase of components’ lifetime. This paper gives an overview of the modeled converter, showing the adopted control strategy and highlighting the developed voltage balancing algorithm.","PeriodicalId":253384,"journal":{"name":"2022 AEIT International Annual Conference (AEIT)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131024398","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
Accuracy Analysis of Dual Active Bridge Simulations under Different Integration Methods 不同积分方法下双有源电桥仿真精度分析
2022 AEIT International Annual Conference (AEIT) Pub Date : 2022-10-03 DOI: 10.23919/AEIT56783.2022.9951711
Gabriele Arena, D. Vinnikov, A. Chub, Giovanni de Carne
{"title":"Accuracy Analysis of Dual Active Bridge Simulations under Different Integration Methods","authors":"Gabriele Arena, D. Vinnikov, A. Chub, Giovanni de Carne","doi":"10.23919/AEIT56783.2022.9951711","DOIUrl":"https://doi.org/10.23919/AEIT56783.2022.9951711","url":null,"abstract":"One of the biggest challenge in the power electronics field is the simulation of power converters. Computer simulations and real-time simulations are really important in this field because they allow to save money during the prototyping stage and to make the entire process more efficient by predicting possible malfunctions already in the design stage. This paper introduces the impact of using different integration methods for solving the differential equations of power converters on the accuracy of the simulation. In particular, the paper focus on one of the most adopted DC-DC converter topology for automotive and microgrid applications, which is the Dual Active Bridge.","PeriodicalId":253384,"journal":{"name":"2022 AEIT International Annual Conference (AEIT)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130770337","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
A short-term congestion management algorithm for the Italian subtransmission grid: experimental validation of the OSMOSE Zonal-EMS 意大利亚输电网的短期拥塞管理算法:对OSMOSE zone - ems的实验验证
2022 AEIT International Annual Conference (AEIT) Pub Date : 2022-10-03 DOI: 10.23919/AEIT56783.2022.9951762
Luca Orrù, G. Lisciandrello, G. Coletta, Marco De Ieso, Stefano Gliozzi, Mauro Ramacciani, Tiziano D’Aversa
{"title":"A short-term congestion management algorithm for the Italian subtransmission grid: experimental validation of the OSMOSE Zonal-EMS","authors":"Luca Orrù, G. Lisciandrello, G. Coletta, Marco De Ieso, Stefano Gliozzi, Mauro Ramacciani, Tiziano D’Aversa","doi":"10.23919/AEIT56783.2022.9951762","DOIUrl":"https://doi.org/10.23919/AEIT56783.2022.9951762","url":null,"abstract":"The urgency for decarbonizing the electric power sector is stimulating the large scale exploitation of non programmable renewable energy sources. As the renewable power generator share increases, TSOs need to find new ways to operate the grids based on unconventional flexibility resources, e.g. demand response, dynamic thermal rating, synthetic inertia and so on. In this context, the OSMOSE project aims at developing a holistic approach to exploit these new flexibility resources and demonstrate their feasibility through real world demonstrators. This paper summarizes the main results of the experimentation conducted within the Work Package 5, i.e. the Italian demonstrator. This paper will focus on the results of the Zonal-EMS tests, which have been conducted on a portion of the South Italy 150 kV sub-transmission grid. The results demonstrated that the Zonal-Energy Management System has the ability to detect and solve congestion with good degree of accuracy and precision.","PeriodicalId":253384,"journal":{"name":"2022 AEIT International Annual Conference (AEIT)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126518258","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
Emergency Generators for Supplying Islanded MV Networks 孤岛中压电网应急发电机
2022 AEIT International Annual Conference (AEIT) Pub Date : 2022-10-03 DOI: 10.23919/AEIT56783.2022.9951750
T. Bragatto, L. D’Orazio, A. Cerretti, A. Geri, F. Gatta, M. Maccioni, R. Turri
{"title":"Emergency Generators for Supplying Islanded MV Networks","authors":"T. Bragatto, L. D’Orazio, A. Cerretti, A. Geri, F. Gatta, M. Maccioni, R. Turri","doi":"10.23919/AEIT56783.2022.9951750","DOIUrl":"https://doi.org/10.23919/AEIT56783.2022.9951750","url":null,"abstract":"In order to increase network resilience, Distribution System Operators are evaluating different remedial actions against extreme events that lead to long interruptions. This paper evaluates the technical solutions for deploying an emergency generator (EG) supplying an islanded Medium Voltage (MV) network. The paper identifies the minimum technical requirements and different neutral grounding arrangements that can be adopted. Taking into account the maximum size of the mobile generators available in the market, evaluation results show that supplying a section of a distribution network could be done only if cable length is lower than 5 km and maximum load is less than 0.5 MW.","PeriodicalId":253384,"journal":{"name":"2022 AEIT International Annual Conference (AEIT)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133700585","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
Machine learning techniques for data analysis in materials science 材料科学中数据分析的机器学习技术
2022 AEIT International Annual Conference (AEIT) Pub Date : 2022-10-03 DOI: 10.23919/AEIT56783.2022.9951839
Claudio Ronchetti, Marco Puccini, S. Ferlito, S. Giusepponi, Filippo Palombi, F. Buonocore, M. Celino
{"title":"Machine learning techniques for data analysis in materials science","authors":"Claudio Ronchetti, Marco Puccini, S. Ferlito, S. Giusepponi, Filippo Palombi, F. Buonocore, M. Celino","doi":"10.23919/AEIT56783.2022.9951839","DOIUrl":"https://doi.org/10.23919/AEIT56783.2022.9951839","url":null,"abstract":"This work applies Graph Neural Networks (GNNs), a class of deep learning methods, to predict physical properties and obtain optimal cathode materials for batteries. Two GNNs are selected: Crystal Graph Convolutional Neural Networks (CGCNN) and the more recent Geometric-Information-Enhanced Crystal Graph Network (GeoCGNN). Both networks are trained on a selected open-source ab initio Density Functional Theory (DFT) dataset for solid-state materials to predict the formation energy and then calculate the redox potential. Numerical results show the inference of the best trained model ran on combinatorial space of interest to discovery the optimal one via multi-objectives method. This approach allows to detect the optimum faster than physics-based computational approaches.","PeriodicalId":253384,"journal":{"name":"2022 AEIT International Annual Conference (AEIT)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114769604","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
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