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Frequency control in coupled energy systems with high penetration of renewable energies 可再生能源高渗透耦合能源系统的频率控制
2015 International Conference on Clean Electrical Power (ICCEP) Pub Date : 2015-06-16 DOI: 10.1109/ICCEP.2015.7177643
P. Dubucq, G. Ackermann
{"title":"Frequency control in coupled energy systems with high penetration of renewable energies","authors":"P. Dubucq, G. Ackermann","doi":"10.1109/ICCEP.2015.7177643","DOIUrl":"https://doi.org/10.1109/ICCEP.2015.7177643","url":null,"abstract":"The integration of Renewable Energies (RE) into the existing energy supply system has proven to very challenging due to the fluctuating nature of RE ressources. However, the negative environmental impacts of power generation can be significantly reduced by limiting the share of fossil fuels used in energy production. As a result wind and photovoltaic capacity in the synchronous grid of continental Europe (UCTE) is increasing. Thus both the European Union and Germany have set ambitious goals for the future growth of RE. The objective of this paper is to show the impacts of RE generation on the dispatch of generation from conventional plants while taking into account must-run capacities of combined heat and power (CHP) plants in district heating grids. Furthermore, the presented results give an estimation for the decrease of rotating masses that are caused by the replacement of conventional plants by RE converters. Subsequently, counteractive measures such as energy storage in the district heating grid and wind inertia control will be discussed.","PeriodicalId":423870,"journal":{"name":"2015 International Conference on Clean Electrical Power (ICCEP)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115262726","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
Fault protection analysis in low voltage DC microgrids with PV generators 带光伏发电机组的低压直流微电网故障保护分析
2015 International Conference on Clean Electrical Power (ICCEP) Pub Date : 2015-06-16 DOI: 10.1109/ICCEP.2015.7177621
M. Carminati, S. Grillo, L. Piegari, E. Ragaini, E. Tironi
{"title":"Fault protection analysis in low voltage DC microgrids with PV generators","authors":"M. Carminati, S. Grillo, L. Piegari, E. Ragaini, E. Tironi","doi":"10.1109/ICCEP.2015.7177621","DOIUrl":"https://doi.org/10.1109/ICCEP.2015.7177621","url":null,"abstract":"Because of the multiple power sources involved, fault protection is one of the most critical issues in micro-grids. If a micro-grid including a PV installation is connected to the grid by means of a front end converter, multiple possible cases of fault may occur. It is a typical feature of such configuration that, depending on fault resistance and location, fault currents from the AC grid may pass unlimited through the converter and contribute to the fault. Most general purpose converters are not able to interrupt fault currents in all situations. A specific protection system is then required to ensure fault clearance and maintain safety. Two possible philosophies for such a protection system are described in this paper, one based on future solid state circuit-breakers, and one based on electromechanical devices complemented by front end converter design modification. Advantages and drawbacks are discussed.","PeriodicalId":423870,"journal":{"name":"2015 International Conference on Clean Electrical Power (ICCEP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128479043","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: 17
Hosting capacity of distribution networks: Evaluation of the network congestion risk due to distributed generation 配电网承载能力:分布式发电导致的网络拥塞风险评估
2015 International Conference on Clean Electrical Power (ICCEP) Pub Date : 2015-06-16 DOI: 10.1109/ICCEP.2015.7177570
M. Rossi, G. Vigano, D. Moneta
{"title":"Hosting capacity of distribution networks: Evaluation of the network congestion risk due to distributed generation","authors":"M. Rossi, G. Vigano, D. Moneta","doi":"10.1109/ICCEP.2015.7177570","DOIUrl":"https://doi.org/10.1109/ICCEP.2015.7177570","url":null,"abstract":"The integration of generation units in distribution grids is one of the main research topics in the field of smart grids. Governments are supporting the connection of small/medium size generators directly to the distribution network, but the consequent growing number of energy producers poses several technical issues. For the planning and operation of a distribution network it is then important to estimate the maximum installable generation according to the limits imposed by the power quality standards. In the recent years, several methods for the evaluation of the Hosting Capacity (HC) has been proposed and designed in order to take into account different aspects related to the reliable operation of the network. However, many methods are not taking into account the effects of the grid allocation of distributed generation and, especially, the unknown position of it before the power plants realization. The paper describes a novel solution to compute the HC on the basis of the risk of network congestion. In addition to the classical voltage and current constraints, the proposed approach also integrates the stochastic allocation of distributed generation and separately evaluates their impact on the HC value.","PeriodicalId":423870,"journal":{"name":"2015 International Conference on Clean Electrical Power (ICCEP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126226011","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: 26
Experimental comparison between an “information based” MPPT algorithm and standard P&O in both partial shading and uniform illumination “基于信息的”MPPT算法与标准P&O算法在部分遮光和均匀光照下的实验比较
2015 International Conference on Clean Electrical Power (ICCEP) Pub Date : 2015-06-16 DOI: 10.1109/ICCEP.2015.7177555
P. Guerriero, F. Di Napoli, V. d’Alessandro, S. Daliento
{"title":"Experimental comparison between an “information based” MPPT algorithm and standard P&O in both partial shading and uniform illumination","authors":"P. Guerriero, F. Di Napoli, V. d’Alessandro, S. Daliento","doi":"10.1109/ICCEP.2015.7177555","DOIUrl":"https://doi.org/10.1109/ICCEP.2015.7177555","url":null,"abstract":"In this paper a maximum power point tracking algorithm able to drive the operating point of a partially shaded photovoltaic system toward the global maximum power point is analyzed. The algorithm exploits detailed information about the electrical parameters of all solar panels forming the solar system gained by means of a distributed sensor network, which monitors the operation of the solar field at a very high granularity level. Data collected by the monitoring system are exploited to reconstruct the power voltage curve of the photovoltaic system, thus recognizing the presence of multiple local maxima and their exact voltage position. Experiments performed on a pilot solar filed equipped with the sensor network evidence the reliability of the analyzed approach. A convergence time of about 2.5 s was achieved independently of illumination conditions and, in case of partial shadowing, an increment of 90 W (50% more) with respect to a standard tracking algorithm.","PeriodicalId":423870,"journal":{"name":"2015 International Conference on Clean Electrical Power (ICCEP)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121854753","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
Dual implementation of the MPPT technique TEODI: Uniform and mismatching operating conditions MPPT技术TEODI的双重实现:均匀和不匹配的操作条件
2015 International Conference on Clean Electrical Power (ICCEP) Pub Date : 2015-06-16 DOI: 10.1109/ICCEP.2015.7177658
M. Balato, L. Costanzo, P. Marino, L. Rubino, M. Vitelli
{"title":"Dual implementation of the MPPT technique TEODI: Uniform and mismatching operating conditions","authors":"M. Balato, L. Costanzo, P. Marino, L. Rubino, M. Vitelli","doi":"10.1109/ICCEP.2015.7177658","DOIUrl":"https://doi.org/10.1109/ICCEP.2015.7177658","url":null,"abstract":"In this paper the dual implementation of the MPPT technique TEODI is presented and discussed. Such a new technique will be called D-TEODI. As well as TEODI, also D-TEODI is suitable for DMPPT PV applications. Its main advantages, as for TEODI, are the simplicity of implementation, the absence of memory and multiplication operations, and the high MPPT efficiency obtainable when the PV modules belonging to the same TEODI Building Block operate in the same atmospheric conditions (absence of mismatching conditions). In order to obtain a technique which is efficient also when mismatching events occur, a proper modification of D-TEODI is necessary. The modified version of D-TEODI will be called MD-TEODI. MD-TEODI is based on the periodic measurement of the short circuit currents of the PV modules. The knowledge of such currents allows not only to determine if mismatching conditions have occurred, but also to identify a suitable correction factor k on which the working of MD-TEODI is based. The results of numerical simulations fully confirm the validity of MD-TEODI.","PeriodicalId":423870,"journal":{"name":"2015 International Conference on Clean Electrical Power (ICCEP)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114432653","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
A DC side energy storage management for one-day-ahead power profile control of concentrator photovoltaic power plants 聚光光伏电站日前一天功率曲线控制的直流侧储能管理
2015 International Conference on Clean Electrical Power (ICCEP) Pub Date : 2015-06-16 DOI: 10.1109/ICCEP.2015.7177645
A. Damiano, G. Gatto, A. Lai, I. Marenghi, C. Musio, A. Perfetto, A. Serpi
{"title":"A DC side energy storage management for one-day-ahead power profile control of concentrator photovoltaic power plants","authors":"A. Damiano, G. Gatto, A. Lai, I. Marenghi, C. Musio, A. Perfetto, A. Serpi","doi":"10.1109/ICCEP.2015.7177645","DOIUrl":"https://doi.org/10.1109/ICCEP.2015.7177645","url":null,"abstract":"In the present paper, a concentrator photovoltaic (CPV) power plant integrated with an Energy Storage System (ESS), which is controlled in order to schedule one-day-ahead the electricity production, is presented. The proposed control algorithm is characterized by the predictive definition of output power shapes. The daily estimation of the ESS State of Charge (SoC), jointly to the measurement of its actual evolution, is used for implementing a hysteresis real-time control devoted to adapt the power profile for compensating unpredictable power fluctuation. In order to develop the proposed energy management system with an existing CPV power plant, a DC side ESS control system, characterized by the use of a bidirectional DC-DC buck-boost converter, is considered. The feasibility of the proposed CPV energy management system is verified by means of a simulation study, which is carried out using on-site CPV prototype measurements.","PeriodicalId":423870,"journal":{"name":"2015 International Conference on Clean Electrical Power (ICCEP)","volume":"177 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124370725","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
About the identification of the single-diode model parameters of high-fill-factor photovoltaic modules 关于高填充系数光伏组件单二极管模型参数的辨识
2015 International Conference on Clean Electrical Power (ICCEP) Pub Date : 2015-06-16 DOI: 10.1109/ICCEP.2015.7177605
M. C. Di Piazza, M. Luna, G. Petrone, G. Spagnuolo
{"title":"About the identification of the single-diode model parameters of high-fill-factor photovoltaic modules","authors":"M. C. Di Piazza, M. Luna, G. Petrone, G. Spagnuolo","doi":"10.1109/ICCEP.2015.7177605","DOIUrl":"https://doi.org/10.1109/ICCEP.2015.7177605","url":null,"abstract":"The suitable identification of the five parameters for the single-diode model of a photovoltaic module is mandatory for having a correct simulation of the module behavior, at least in STC conditions. This process is afforded in literature by means of a number of fitting procedures, but many studies report difficulties in identifying the series and the parallel resistances for modules showing a high fill factor. In these cases, the identified value of such resistances may become negative, with an evident contrast with the physical meaning of such parameters. In this paper two approaches presented in literature, and based on some simplifications of the nonlinear problem under study, are firstly compared and also jointly used. Their application to some practical cases is discussed and compared with the exact solutions of two different formulations of the system of five non-linear equations.","PeriodicalId":423870,"journal":{"name":"2015 International Conference on Clean Electrical Power (ICCEP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130637312","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
Integration of a solar system in the greenhouse architecture 温室建筑中集成了太阳能系统
2015 International Conference on Clean Electrical Power (ICCEP) Pub Date : 2015-06-16 DOI: 10.1109/ICCEP.2015.7177611
G. Patrono, S. Vergura
{"title":"Integration of a solar system in the greenhouse architecture","authors":"G. Patrono, S. Vergura","doi":"10.1109/ICCEP.2015.7177611","DOIUrl":"https://doi.org/10.1109/ICCEP.2015.7177611","url":null,"abstract":"The paper deals with the study of the energy necessary to the greenhouse for the roses cultivation. Each cultivation requires specific micro-climate condition, then generic design is not an effective solution. In order to determine the best material to be used, a comparison has been made among three typologies, i.e. single glass, polycarbonate, and double glass. A solution with an integrated PV plant has been considered for the three cases, taking into account the energy needed but also a correct positioning that does not interface the natural growth of the cultivation.","PeriodicalId":423870,"journal":{"name":"2015 International Conference on Clean Electrical Power (ICCEP)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128992381","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
Smart grid integrated green data centres as ancillary service providers 智能电网整合绿色数据中心作为辅助服务提供商
2015 International Conference on Clean Electrical Power (ICCEP) Pub Date : 2015-06-16 DOI: 10.1109/ICCEP.2015.7177619
D. Arnone, A. Barberi, D. La Cascia, E. R. Sanseverino, G. Zizzo
{"title":"Smart grid integrated green data centres as ancillary service providers","authors":"D. Arnone, A. Barberi, D. La Cascia, E. R. Sanseverino, G. Zizzo","doi":"10.1109/ICCEP.2015.7177619","DOIUrl":"https://doi.org/10.1109/ICCEP.2015.7177619","url":null,"abstract":"In this paper a review of Green Data Centres facilities to support smart grids operation is proposed. The paper describes the ancillary services a Green Data Centre can provide both in terms of spinning reserve provision and different regulation services. In the application section, a real electrical grid hosting a data centre is considered. The infrastructure is owned by Engineering S.p.A. and is installed in northern Italy. The system has been considered as connected to the MV distribution grid in presence of other renewable energy sources. The impact of possible power management operations over the considered data centre has been studied by means of a simulation software and the spinning reserve it can supply to the grid in case of wind farm power production reduction has been analysed.","PeriodicalId":423870,"journal":{"name":"2015 International Conference on Clean Electrical Power (ICCEP)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131902351","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: 10
Super-junction power MOSFET in half bridge DC-DC zero-voltage converter for energy conversion management 半桥DC-DC零电压变换器中用于能量转换管理的超结功率MOSFET
2015 International Conference on Clean Electrical Power (ICCEP) Pub Date : 2015-06-16 DOI: 10.1109/ICCEP.2015.7177577
S. Musumeci, D. Cristaldi, F. Portoghese
{"title":"Super-junction power MOSFET in half bridge DC-DC zero-voltage converter for energy conversion management","authors":"S. Musumeci, D. Cristaldi, F. Portoghese","doi":"10.1109/ICCEP.2015.7177577","DOIUrl":"https://doi.org/10.1109/ICCEP.2015.7177577","url":null,"abstract":"The aim of this paper is to explore the switching capability of an improved high-voltage Super Junction MOSFET in half bridge resonant LLC converter. Due to suitable technological process, a considerable reduction in silicon conduction losses per area unit has been observed. Moreover, a reduction in the parasitic capacitance (i.e. gate charge) with an improved switching behavior has been obtained. In this paper, LLC resonant converter is selected because it operates at high switching frequency allowing to work with small size of the power transformer. The main benefit of this converter consists in zero-voltage switching (ZVS) of the MOSFETs. The converter is well suitable for applications such as PV systems. In this work the design procedure of LLC Resonant Converter is presented. Laboratory prototype was built to evaluate the performances of SJ MOSFET. Experimental results show an efficiency up to 94%.","PeriodicalId":423870,"journal":{"name":"2015 International Conference on Clean Electrical Power (ICCEP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129800188","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: 16
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