2019 54th International Universities Power Engineering Conference (UPEC)最新文献

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Economic Benefits of Energy Storage and Price-aware Demand Response for Future Smart Cities 未来智慧城市储能的经济效益和价格感知需求响应
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893590
I. Picioroagă, M. Eremia, Mihai Sănduleac
{"title":"Economic Benefits of Energy Storage and Price-aware Demand Response for Future Smart Cities","authors":"I. Picioroagă, M. Eremia, Mihai Sănduleac","doi":"10.1109/UPEC.2019.8893590","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893590","url":null,"abstract":"As new goals were set in terms of reliability and sustainability in urban power grids, demand response (DR) programs have gained remarkable attention for their benefits offered to both grid and customers. However, given the limited possibilities of implementing these services, the energy storage systems (ESSs) can be important tools for increasing the flexibility of electrical systems, allowing also the high penetration of renewable sources. The scope of this work is to analyze the impact of optimal operation of ESS together with the deployment of different types of demand side management (DSM) in Smart City context, considering the presence of local renewable energy sources (RESs). In this paper, a scheduling optimization scheme for an urban distribution network is presented, aiming to reduce the total operation cost. In this regard, a bi-objective model has been developed, that determines the balance between the global operational cost and the total load curtailment provided by the DR programs, while satisfying the technological constraints of the ESS and the power grid.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74200573","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
Creation of a computational framework for the European transmission grid with Power-to-Gas 为欧洲输电网建立电转气计算框架
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893606
A. Mazza, A. Rogin, Shaghayegh Zalzar, A. Estebsari, E. Bompard
{"title":"Creation of a computational framework for the European transmission grid with Power-to-Gas","authors":"A. Mazza, A. Rogin, Shaghayegh Zalzar, A. Estebsari, E. Bompard","doi":"10.1109/UPEC.2019.8893606","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893606","url":null,"abstract":"The presence of high penetration of Variable Renewable Energy Sources (VRES) is one of the key aspects of the modern electricity system. The new challenges to be faced require novel technologies which enhance the flexibility of the transmission system. In this paper, the exploitation of the power-to-gas technology (PtG) is considered as a solution for the flexibility challenges, allowing to absorb the excess of electricity produced by VRES and at the same time, producing synthetic natural gas (SNG). This work presents a computational framework based on DC Optimal Power Flow capable to simulate the day-ahead market and the following intra-day market, applied to a simplified European transmission network, by considering different scenarios for both load and generation. PtG plants model are modelled based on the real measurements of a 2-MW Alkaline (AEC) electrolyser. The results of a given PtG placement configuration, applied to a current scenario (2017) and two future scenarios (2030&2040) show that the fast response of PtG units improves the system performance and reduces the VRESs’ imbalance up to ~90% in terms of imbalance time duration and ~40% in terms of peak imbalance power. These results lead to further investigations, about the optimal PtG units’ placement and sizing, as well as their economic and technical consequences on the transmission network operation.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81230459","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
Active and Reactive Power Load Profiling Using Dimensionality Reduction Techniques and Clustering 基于降维技术和聚类的有功和无功负荷分析
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893443
E. F. Yetkin, O. Ceylan, T. Papadopoulos, Anastasia G. Kazaki, Georgios A. Barzegkar-Ntovom
{"title":"Active and Reactive Power Load Profiling Using Dimensionality Reduction Techniques and Clustering","authors":"E. F. Yetkin, O. Ceylan, T. Papadopoulos, Anastasia G. Kazaki, Georgios A. Barzegkar-Ntovom","doi":"10.1109/UPEC.2019.8893443","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893443","url":null,"abstract":"This paper proposes a methodology to characterize active and reactive power load profiles. Specifically, the approach makes use of fast Fourier Transform for conversion into frequency domain, principle component analysis to reduce the dimension and K-means++ to determine the representative load profiles. The data set consists of five-year measurements taken from the Democritus University of Thrace Campus. Test days were also classified as working and non-working. From the results it is observed that the proposed methodology determines representative load profiles effectively both regarding active and reactive power.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87117261","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
Innovative integrated ICT system for the real time monitoring of power quality and loss on the transport and distribution lines in the national power system 创新的综合ICT系统,用于实时监测国家电力系统中输配电线路的电能质量和损耗
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893582
C. Moldoveanu, I. Ionita, S. Grigorescu
{"title":"Innovative integrated ICT system for the real time monitoring of power quality and loss on the transport and distribution lines in the national power system","authors":"C. Moldoveanu, I. Ionita, S. Grigorescu","doi":"10.1109/UPEC.2019.8893582","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893582","url":null,"abstract":"Energy efficiency is essential for all global energy transitions. It is the most available, safe and affordable energy resource in the world, and every government has the power, the ability and the desire to continuously exploit energy efficiency in order to benefit from it on a large scale.An important amount of energy is lost in the transmission and distribution system due to technological and non-technological losses. Each component of the transmission and distribution system contributes to losses. The causes of these losses are multiple.The volume of energy losses in the power transmission and distribution systems is important, as it is generally up to 3 - 13%. The volume of power losses in Romania, in the power transmission and distribution systems is one of the biggest in Europe, the level being 10,885% in 2014 compared to the European average of 6,059%.The current paper presents the research results of the authors regarding the real time monitoring of power quality and loss on the transport and distribution lines in the national power system.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87517359","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
Impact of Consumer Profiles on a Consumer Convenience Prioritised Demand Response 消费者资料对消费者便利优先需求反应的影响
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893502
Chittesh Veni Chandran, K. Sunderland, M. Basu
{"title":"Impact of Consumer Profiles on a Consumer Convenience Prioritised Demand Response","authors":"Chittesh Veni Chandran, K. Sunderland, M. Basu","doi":"10.1109/UPEC.2019.8893502","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893502","url":null,"abstract":"Distribution network (DN) load flexibility has simultaneously created challenges and opportunities. The major challenge is to meet the demand-supply balance while maintaining a positive profit-loss ratio. Further, Government enforced climate change policies attract low carbon technology (LCT) distributed energy resources (DER), which further complicate matters. Along with DN, the domestic appliance industry has undergone drastic modernization leading to appliances with advanced control and power efficient technologies as well as automation capabilities. This paper proposes a demand response (DR) program that facilitates these advancements while micromanaging the domestic load consumption pattern so as to manage peak demand in the network. This work identifies consumer conviction towards the DR programs as the major bottle neck for the success of such load management programs. The mixed integer linear programming based DR (MILP – DR) algorithm proposed here, minimizes the consumer inconvenience while facilitating load reduction. Further, attractive consumer engagement plans promoting different levels of engagement (load reduction) are also proposed, which further enhance the choice offering for consumers. The algorithm is tested on a 74 load (domestic) urban distribution network having 8 different consumer profiles. The algorithm is capable of inducing impartiality between consumers by updating a tolerance factor correlating inconvenience of consumers with load deprivation. The results show the capability of the algorithm to distribute load reduction based on the engagement plan, while also minimizing the consumer inconvenience. The results also suggest correlations between social parameters and achievable DR.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85450606","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
Bounds of Estimated States Based on Line Parameter Uncertainties 基于线参数不确定性的估计状态边界
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893608
M. Asprou, E. Kyriakides, M. Albu
{"title":"Bounds of Estimated States Based on Line Parameter Uncertainties","authors":"M. Asprou, E. Kyriakides, M. Albu","doi":"10.1109/UPEC.2019.8893608","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893608","url":null,"abstract":"The accurate monitoring and control of power systems relies heavily on the power system topology, the accurate models of every component and especially on the accurate representation of the power system transmission lines. The parameters that characterize the existing transmission lines (resistance and reactance) are stored in the control center database and are used in several applications, such as the state estimator, power flow analysis, and voltage stability analysis. The parameters’ values may be subjected to errors and their exactness can be refined using Phasor Measurement Unit (PMU) measurements from the two ends of the transmission lines (in case of pi model). In such a case, the calculated line parameters will have associated a maximal error relative to the PMU-chain measurement uncertainty. In this paper, the standard uncertainty of the calculated line parameters is used for assessing the intervals linked to the estimated states. The proposed approach is validated using the IEEE 14-bus system where it is demonstrated that the calculated intervals always encompass the true state of the system.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90045880","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
Efficiency Investigation of a Grid Connected PV System with Power Smoothing 考虑功率平滑的并网光伏系统效率研究
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893628
S. Ioannou, M. Argyrou, C. Marouchos, M. Darwish
{"title":"Efficiency Investigation of a Grid Connected PV System with Power Smoothing","authors":"S. Ioannou, M. Argyrou, C. Marouchos, M. Darwish","doi":"10.1109/UPEC.2019.8893628","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893628","url":null,"abstract":"Efficiency is of paramount importance in renewable energy technologies as the energy loss is converted into financial loss to the investor. A thorough investigation of efficiency is attempted in a grid connected photovoltaic (PV) system employing smoothing. Smoothing is necessary due to cloud movements and other reasons where the produced power is fluctuating. Partial controlled storage in a small lithium battery is applied to alleviate the problem of stability and voltage flickering of the grid. Losses in such systems are identified in the switching transistors, diodes and inductors. The grid connected system consists of the PV modules, the MPPT and the inverter. A bidirectional DC-DC converter and a lithium battery are used for smoothing. For the purpose of this research, PSIM is employed as it contains all the elements for simulating a grid connected PV system. Furthermore, it simulates transistors, diodes and inductors with their characteristics derived from the datasheets.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88987618","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
Industrial load forecasting using machine learning in the context of smart grid 基于机器学习的智能电网工业负荷预测
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893540
S. Ungureanu, V. Topa, A. Cziker
{"title":"Industrial load forecasting using machine learning in the context of smart grid","authors":"S. Ungureanu, V. Topa, A. Cziker","doi":"10.1109/UPEC.2019.8893540","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893540","url":null,"abstract":"Integration of industrial consumers into the smart grid concept can be facilitated by optimizing load forecasting for industrial consumers. Minimizing forecast errors can improve the supplier-consumer relationship by reducing balancing costs and anticipate possible network faults. The present paper aims to research the efficiency of machine learning applied for industrial load. The dataset consists of hourly recorded values for electricity consumption generated by a meat processing facility. In the context of installing complex monitoring systems with high frequency recording intervals, huge amounts of data will be generated that require detalied analysis and real time processing, otherwise the investments in the smart grid are not justified, consequently disfavouring the development and digitization of electrical networks. Integration of the industrial consumer into the smart grid concept can be applied in great detail at large industrial consumers through robust forecasting. Forecasting the energy behaviour of a industrial consumer is a difficult task, high forecasting errors have been obtained due to the unpredictability of the consumer.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90860926","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
Load Frequency Control of a Power System with 100% Renewables 100%可再生能源电力系统的负荷频率控制
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893587
H. H. Fayek
{"title":"Load Frequency Control of a Power System with 100% Renewables","authors":"H. H. Fayek","doi":"10.1109/UPEC.2019.8893587","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893587","url":null,"abstract":"The world is directing its efforts towards achieving 100% renewable power generation. This paper presents frequency control of a single area power system. The power system is feeding from renewable technologies and storage facilities only which are Photovoltaics, Biogas, Biodiesel, Solar thermal, battery storage and flywheel storage systems. The paper presents models to each renewable technology and energy storage facility. The frequency is controlled by using Nonlinear PID controller (NPID), Fractional order PID controller (FOPID) and Nonlinear FOPID controller (NFOPID). The three controllers are designed by using genetic algorithm at different operating conditions. A comparison between the three controllers at different operating conditions is presented. The results show that NFOPID has better performance than the other two controllers. The simulation and optimization are performed using MATLAB / SIMULINK 2017a.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81061107","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
Mid-Term Congestions Forecast in the German Transmission Grid 德国输电网中期拥堵预测
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893546
M. Nobis, Andreas Blank, Katharina Kollenda, Henrik Schwaeppe, L. Wyrwoll, A. Martin, Philippe Vassilopoulos
{"title":"Mid-Term Congestions Forecast in the German Transmission Grid","authors":"M. Nobis, Andreas Blank, Katharina Kollenda, Henrik Schwaeppe, L. Wyrwoll, A. Martin, Philippe Vassilopoulos","doi":"10.1109/UPEC.2019.8893546","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893546","url":null,"abstract":"A vast expansion of renewables has led to severe overloading situations in the German transmission grid. Available studies on grid expansion usually pursue a long term view although the currently observable delayed grid expansion leads to uncertainties in mid-term operations. Hence, it is necessary to assess the potential severity as well as location of these effects. This paper presents the spatial distribution of line congestions in the mid-term in the German 380/220 kV extra high voltage grid. To avoid an overestimation of congestions, the underlying high voltage grid structures are also considered. The results show severe overloads especially in Lower Saxony (DE) and the cross-border area Vierraden (DE-PL). Simulations underline, upcoming grid expansion measures contribute significantly to reducing these congestions. A partial removal of lignite generation capacity in Rhineland in contrast exacerbates grid congestions.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81366032","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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