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

{"title":"Campus Load Profiles from Enhanced Smart Meter Data","authors":"A. Toma, M. Olteanu, A. Dumitrescu","doi":"10.1109/UPEC.2019.8893572","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893572","url":null,"abstract":"Emerging appliance technology deployed by more and more energy-aware citizens requires an in-depth analysis of the actual/real load profiles for residential consumers. While the smart metering roll-out makes this analysis possible, especially when using the new generation smart meters with enhanced functionalities and high reporting rates, its necessity is highlighted by the different, asynchronous and sometimes unpredictable consumer behavior especially when dealing with young educated adults. In this context, a correlation-based analysis of consumer behavior and its impact on voltage levels is proposed in this paper. High reporting rate smart meters installed in a student campus are used as pilot for this study.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"6 4 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81033559","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}

{"title":"Multi-objective Optimal Planning of Distributed Energy Resources Using SPEA2 Algorithms Considering Multi-agent Participation","authors":"R. Ney, L. Canha, O. Adeyanju, G. Arend","doi":"10.1109/UPEC.2019.8893569","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893569","url":null,"abstract":"The distributed generation resources are expected to largely transform the future operation of distribution systems. However, there is high perception for wider integration considering how evenly the distributed generation resources benefit are distributed among various agents in the power sector. This study presents a multi-objective planning of Distributed Generation to determine the best options for siting and sizing and different types of Distributed Energy Resources (DER) considering multi-agent participation. The developed multi-objective optimization method adopts the Strength Pareto Evolutionary Algorithm 2 (SPEA 2) technique, with the objective to promote and distribute benefits of Distributed Energy Resources among participating agents such as Distribution Network Operators and Distributed Generation Developer, and with the expectation that the prospective benefits from the distributed resources will speed up the current regulatory proposal updating in the electric sector.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"46 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83749768","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}

{"title":"PMU Orchestrator as a solution for managing microgrid monitoring with 5G communication","authors":"Mihai Sănduleac, Catalin Chimirel, M. Paun","doi":"10.1109/UPEC.2019.8893555","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893555","url":null,"abstract":"Phasor Measurement Units are promising devices for use in active distribution grid, to help monitoring and control in a scenario with high renewables penetration.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"24 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83286720","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}

{"title":"A Novel Method for Earth Fault Direction Detection in Compensated Networks","authors":"Erwin Burkhardt, D. Hilbrich, Nils Offermann, F. Jenau, C. Rehtanz","doi":"10.1109/UPEC.2019.8893611","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893611","url":null,"abstract":"In recent years the number of decentralized generators has risen significantly. Due to the resulting bidirectional load flow, new protection concepts for electrical networks are required. In this paper, an innovative algorithm for directional earth fault detection, e.g. with an overhead line indicator, in compensated networks is presented. The algorithm is based on the switch-on process of an inductance and the DC component that occurs during this process. First, the physical background of the method is explained. The algorithm is simulated in the CIGRE MV Benchmark Network. Different scenarios are tested. The results of the simulations are successfully confirmed by real measurement data of a distribution network operator.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"63 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80762544","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}

{"title":"Simulation of Curative Congestion Management in Large-Scale Transmission Grids","authors":"Andreas Hoffrichter, Katharina Kollenda, Maximilian Schneider, R. Puffer","doi":"10.1109/UPEC.2019.8893627","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893627","url":null,"abstract":"Curative actions within operational congestion management seem to be a promising concept for realizing an efficient utilization of the transmission grid infrastructure and reducing cost-intensive redispatch measures. In contrast to today's preventive (pre-fault) use of market- and network-related measures to fulfill the N-1 security criterion, curative actions are implemented post-fault and hence allow higher utilizations in prefault situations. In this paper, the use of curative actions in large-scale transmission grids is analyzed. First, the model framework to identify preventive and curative congestion management measures is presented. A detailed model of the European transmission grid is used to analyze the potential of curative actions to reduce preventive congestion management effort. To evaluate the impact of the conceptual design of curative actions, multiple parameter sets are analyzed regarding considered market-and network-related options and technologies (generation units, HVDC systems, phase-shifting transformers), the limitation of curative adjustments and the set of considered contingencies. The results show that the use of curative actions allows to substantially reduce cost-intensive preventive measures by up to 69.2%, but requires large curative power adjustments. The limitation of curative adjustments lowers this potential significantly, which should be considered when developing operational strategies for congestion management.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"31 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83998805","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}

{"title":"Harvesting the Benefits of Iceland’s Energy Resources","authors":"E. Hreinsson","doi":"10.1109/UPEC.2019.8893562","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893562","url":null,"abstract":"Iceland is blessed with rich renewable energy resources in hydro, geothermal and wind. Wind is largely untapped, but a considerable part of the hydro and geothermal resources have been harnessed in the last few decades, mostly for local energy intensive industry (EII). The development has been massive and today, electricity consumption per capita is already, by far the highest in the world, exceeding the OECD average by a factor of almost 7. In spite of this extensive development, there is still room for further expansion, since only about a third of the available economical resources have been tapped. The remainder includes geothermal and hydro projects, categorized for environmental restrictions in the preservation and on-hold categories of the Master Plan (MP), as discussed further in the paper. In addition, almost all wind resources are completely untapped.This paper assesses the potential economic benefit of marketing the renewable electricity of Iceland directly by export in larger markets, as opposed to selling them locally to the EII, which in the past has been the beneficiary of tapping these resources in this isolated power system. However, with maturing submarine link technology, it may well be economical to transmit and integrate these energy resources into EU or UK markets, thereby realizing the economic rent of these resources.The assessment in principle is twofold. (1) First, a one-way, constant bulk transfer to the United Kingdom (UK) is possible, assuming purchase agreements with prices comparable to those paid to renewable or nuclear generators by the UK government in recent years. (2) Secondly a flexible transfer is briefly discussed, where the power flow may even alternate to and from Iceland and be variable, in line with market prices in the UK or hydro conditions on the Icelandic side. The paper estimates numerically the benefits in the first case, as the income from energy sales, minus the cost of generation and transmission across a submarine HVDC link to the UK or EU markets. The 2nd case remains to be investigated.The main results are that the total economic rent is comparable to the total Icelandic state tax income per year, or around 2 - 5 Billion US$ per year, with fully developed hydro and geothermal schemes in Iceland, as further specified below. The question, who will reap these benefits, in addition to the resource owners, is an open one.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"7 1 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78391340","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}

{"title":"Augmenting System Inertia Through Fast Acting Reserve – A Power System Case Study with High Penetration of Wind Power","authors":"Michel Rezkalla, M. Marinelli","doi":"10.1109/UPEC.2019.8893531","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893531","url":null,"abstract":"A number of jurisdictions across the world are committed to reducing their carbon emissions. A key route to decarbonisation is by raising the share of renewable generation. However, this will result in reduction of the system inertia and consequently deterioration of frequency stability. Fast acting reserve (FAR) is seen as a possible solution. Various approaches concerning the control of FAR (e.g. frequency gradient and frequency deviation based triggering) have previously been proposed. There is however a lack of clarity regarding the volume of FAR that can potentially compensates for reduction in system inertia. This paper carries out a quantitative assessment of FAR to limit the rate of change of frequency. All island power system of Ireland is adopted as a test case for analysis. The study concludes that FAR can mitigate the RoCoF and it presents also the quantitative relationship between FAR and conventional inertia which depends on system conditions.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"114 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78395717","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}

{"title":"Output Power Smoothing of Grid-Tied PMSG-Based Variable Speed Wind Turbine Using Optimal Controlled SMES","authors":"M. Qais, H. Hasanien, S. Alghuwainem, M. Elgendy","doi":"10.1109/UPEC.2019.8893530","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893530","url":null,"abstract":"Due to the stochastic nature of wind speed, energy storage systems are used to reduce the fluctuations of the output power of wind farms. In this paper, the superconducting magnetic energy storage (SMES) is used to smoothen the output power of a permanent magnet synchronous generator (PMSG) driven by a variable speed wind turbine. The PMSG is connected to the grid through a back-to-back converter. The SMES is connected to the DC link of the back-to-back converter through an asymmetrical converter. The Grey Wolf Optimizer (GWO) is used to find the optimal parameters of a proportional-integral (PI) controller used to regulate the charge and discharge operation of the SMES unit. The grid-tied PMSG wind turbine system is modelled and simulated using PSCAD/EMTDC software. Wind speed data measured at Zaafarana wind farm, Egypt is used in evaluating the system’s performance. Simulation results revealed that the optimal controlled SMES has smoothened the output wind power and reduced the total harmonic distortion of it.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"76 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78750833","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}

{"title":"Identification of Internal Defects of Solar Panels Using Equivalent Circuit","authors":"K. Pourhossein, M. Asadi","doi":"10.1109/UPEC.2019.8893609","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893609","url":null,"abstract":"Solar energy, individually, can provide all energy needs of the earth. Photovoltaic (PV) converters become better and better year by year from technical and economic viewpoints. Thus, they are going to provide a major portion of electrical energy, worldwide. PV panels may confront various anomalies in production stage or in operation. Therefore, these defects must be diagnosed in a timely manner. This paper proposes an equivalent circuit approach to detect abnormal behavior in PV panels. Any class of defects, affect one or more elements of AC equivalent circuit of a PV panel. Therefore, variations of those elements change frequency domain behavior of PV panels and can be detected visually.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"99 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77202981","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}

{"title":"Analysis, Simulation, and Comparison of Multi-Module Interleaved DC-DC Converter for Hybrid Renewable Energy Systems","authors":"Farag S. Alargt, A. Ashur, A. Kharaz","doi":"10.1109/UPEC.2019.8893597","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893597","url":null,"abstract":"Renewable energy systems are placed to become the best power solution for many applications. Recently, a multi-sources systems were used widely as a reliable and flexible power system construction, these systems used the multi-input converter (MIC) as a replacement of several single-input converters which leads to a simpler and lower cost circuit. In this paper, a multi-input converter (MIC) to process multi-source power is proposed and compared in different topology, a three common structure of these converters based on interleaving technique and using Adaptive Delta Modulation (ADM) loop as a controller was presented. While each of these converters operate at interleaving mode, better performance can be achieved and the size also is reduced. Analysis of the converters are carried out in order to achieve the required system stability and to improve the dynamic performance. Simulation results are presented to illustrate the advantages and performance comparison of the proposed converters. The ADM control loop provides a number of features like very fast response and high stability with input voltage or output load variation which also maintained.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"4 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87409646","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}