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2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)最新文献

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Analysis of distribution grids: State estimation using model uncertainties 配电网分析:利用模型不确定性进行状态估计
2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2011-12-01 DOI: 10.1109/AMPS.2011.6090439
M. Albu, E. Kyriakides, A. Dumitrescu, I. Florea
{"title":"Analysis of distribution grids: State estimation using model uncertainties","authors":"M. Albu, E. Kyriakides, A. Dumitrescu, I. Florea","doi":"10.1109/AMPS.2011.6090439","DOIUrl":"https://doi.org/10.1109/AMPS.2011.6090439","url":null,"abstract":"The development of smart grid technologies for distribution grids requires a more accurate knowledge of the energy transfer in such grids. Uncertainties in the measurement chain and in the network model (mostly from incomplete knowledge of the model electrical parameters) have to be estimated and further used together with control algorithms, including those based on state estimation procedures. In this paper, several model components are considered and described along with associated uncertainties: the equivalent circuits of the low voltage cable belonging to a generic distribution grid, power transformers and an aerial short medium voltage line. In order to minimize the uncertainty associated with the state estimation variables, only phasor measurement units (PMU) are considered in the measurement layer.","PeriodicalId":420824,"journal":{"name":"2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122736117","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: 9
Accuracy of DFT-based synchrophasor estimators at off-nominal frequencies 非标称频率下基于dft的同步相量估计精度
2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2011-12-01 DOI: 10.1109/AMPS.2011.6090349
D. Macii, D. Petri, A. Zorat
{"title":"Accuracy of DFT-based synchrophasor estimators at off-nominal frequencies","authors":"D. Macii, D. Petri, A. Zorat","doi":"10.1109/AMPS.2011.6090349","DOIUrl":"https://doi.org/10.1109/AMPS.2011.6090349","url":null,"abstract":"The accuracy of synchrophasor estimators is a well-known critical issue in systems for smart grid monitoring and control. This paper presents an in-depth analysis of the effect of off-nominal frequency deviations on single-cycle and multi-cycle DFT-based synchrophasor estimators. Unlike other qualitative or simulation-based results available in the literature, this work provides some accurate and easy-to-use expressions that can be used to keep the total vector error within given target uncertainty boundaries.","PeriodicalId":420824,"journal":{"name":"2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121149903","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: 11
Unbalance analysis for electrical power systems in the presence of harmonics and interharmonics 存在谐波和间谐波的电力系统的不平衡分析
2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2011-12-01 DOI: 10.1109/AMPS.2011.6090567
R. Langella, A. Testa, A. Emanuel
{"title":"Unbalance analysis for electrical power systems in the presence of harmonics and interharmonics","authors":"R. Langella, A. Testa, A. Emanuel","doi":"10.1109/AMPS.2011.6090567","DOIUrl":"https://doi.org/10.1109/AMPS.2011.6090567","url":null,"abstract":"A new method to evaluate the unbalance for electrical power systems in the presence of harmonic and interharmonic distortion is presented. A new unique transformation matrix able to extract the balanced, the first unbalanced, and the second unbalanced components suitable for all of the harmonic and interharmonic orders is introduced. The decomposition presented allows evaluating the quantities defined in IEEE Standard 1459–2010 taking into account unbalances produced by harmonics and interharmonics and extending some important definitions to signals characterized by interharmonic distortion.","PeriodicalId":420824,"journal":{"name":"2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"268 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132296224","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: 5
System for high voltage current transformers onsite verification 系统用于高压电流互感器现场验证
2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2011-12-01 DOI: 10.1109/AMPS.2011.6090440
M. M. Costa, J. Carvalho, D. B. Dahlke, P. H. M. Santos
{"title":"System for high voltage current transformers onsite verification","authors":"M. M. Costa, J. Carvalho, D. B. Dahlke, P. H. M. Santos","doi":"10.1109/AMPS.2011.6090440","DOIUrl":"https://doi.org/10.1109/AMPS.2011.6090440","url":null,"abstract":"This paper presents a solution for high voltage current transformers onsite errors verification, using a system composed by an optical current sensor as reference standard, suitable for live line installation up to 550 kV. The system is described; its performance results are presented, as well as field applications and results. Some limitations that have to be overcome to obtain a reasonable measurement uncertainty are also discussed.","PeriodicalId":420824,"journal":{"name":"2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126176862","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 metrological comparison between different methods for harmonic pollution metering 谐波污染计量方法的计量比较
2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2011-12-01 DOI: 10.1109/AMPS.2011.6090434
A. Ferrero, M. Prioli, S. Salicone
{"title":"A metrological comparison between different methods for harmonic pollution metering","authors":"A. Ferrero, M. Prioli, S. Salicone","doi":"10.1109/AMPS.2011.6090434","DOIUrl":"https://doi.org/10.1109/AMPS.2011.6090434","url":null,"abstract":"Several proposals can be found, in literature, to split the responsibility for the injection of harmonic pollution between the different loads and between loads and source. The methods have been tested mainly by means of simulations performed on an industrial test system identified by the IEEE Task Force on Harmonic modeling and simulation. The main problem of simulation results is that they tend to disregard measurement uncertainty that, if not properly considered, might lead to an incorrect, or even impossible assessment of responsibility. This paper is therefore aimed at comparing the different available methods from a metrological point of view, in order to provide a wider and more complete basis for evaluating their performances.","PeriodicalId":420824,"journal":{"name":"2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130687764","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: 8
Transient behavior of the full-cycle DFT Phasor Estimator 全周期DFT相量估计器的暂态特性
2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2011-12-01 DOI: 10.1109/AMPS.2011.6090436
D. Petri, D. Belega
{"title":"Transient behavior of the full-cycle DFT Phasor Estimator","authors":"D. Petri, D. Belega","doi":"10.1109/AMPS.2011.6090436","DOIUrl":"https://doi.org/10.1109/AMPS.2011.6090436","url":null,"abstract":"The paper analyzes the transient behavior of the phasor estimator provided by the full-cycle Discrete Fourier Transform (DFT) of a power system signal. To this aim the theoretical expression of the DFT Phasor Estimator (DFT-PE) is derived in the case when the observation interval contains both an abrupt variation in the fundamental component amplitude and/or phase, and a decaying dc-offset. The obtained results allow the determination of the DFT-PE phasor amplitude and phase errors during the whole estimation transient. The accuracies of the provided expressions are extensively verified by means of computer simulations.","PeriodicalId":420824,"journal":{"name":"2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134521338","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
Simulation of a power line communication system in medium and low voltage distribution networks 中低压配电网电力线通信系统的仿真
2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2011-12-01 DOI: 10.1109/AMPS.2011.6090429
A. Cataliotti, V. Cosentino, D. D. Cara, G. Tinè
{"title":"Simulation of a power line communication system in medium and low voltage distribution networks","authors":"A. Cataliotti, V. Cosentino, D. D. Cara, G. Tinè","doi":"10.1109/AMPS.2011.6090429","DOIUrl":"https://doi.org/10.1109/AMPS.2011.6090429","url":null,"abstract":"The aim of the paper is to study the influence of the power transformer on signal transmission in the case of a power line communication (PLC) system in a overhead Medium Voltage (MV) power network. A model of the PLC system was carried out by means of the Simulink® software. A distributed parameter MV overhead line, two power transformers, the signal coupling interface of a ST7540 FSK powerline transceiver were included in the model. The performances of the complete PLC communication system are evaluated for different line lengths by means of the attenuation computed as ratio between the received and transmitted voltage signals.","PeriodicalId":420824,"journal":{"name":"2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127587879","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: 19
Applications of wavelet transforms in electric power quality: Harmonic distortion 小波变换在电能质量中的应用:谐波失真
2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2011-12-01 DOI: 10.1109/AMPS.2011.6090566
J. Barros, R. Diego, M. Apráiz
{"title":"Applications of wavelet transforms in electric power quality: Harmonic distortion","authors":"J. Barros, R. Diego, M. Apráiz","doi":"10.1109/AMPS.2011.6090566","DOIUrl":"https://doi.org/10.1109/AMPS.2011.6090566","url":null,"abstract":"Wavelet transform is, at present, one of the most useful digital signal processing tools for time-frequency analysis of power quality disturbances in power systems. This paper presents a review of the applications of wavelet transforms in the measurement and analysis of harmonic distortion in power systems, discussing the performance, advantages and limitations of the different methods proposed in the technical literature.","PeriodicalId":420824,"journal":{"name":"2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128336727","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
Monitoring of a PV system: The role of the panel model 光伏系统的监控:面板模型的作用
2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2011-12-01 DOI: 10.1109/AMPS.2011.6090437
L. Cristaldi, M. Faifer, M. Rossi, F. Ponci
{"title":"Monitoring of a PV system: The role of the panel model","authors":"L. Cristaldi, M. Faifer, M. Rossi, F. Ponci","doi":"10.1109/AMPS.2011.6090437","DOIUrl":"https://doi.org/10.1109/AMPS.2011.6090437","url":null,"abstract":"The growing number of installed photovoltaic plants is making the possibility of simulating their behavior and effects on the power network more and more relevant. In this context an accurate yet simple model of the panels is necessary for the evaluation of the power production as well as of the system efficiency in off-line and on-line simulation. In the preliminary stages of large plant design, this model supports design and decision making, by permitting to simulate the whole plants and testing various architectures. In this paper a model of the panel suitable for the uses above, and a procedure to identify its parameters is presented. A case study analyzing the efficiency of a solar plant using the proposed model is also presented. Moreover the importance of the quality of the environmental parameters in evaluating the plant energy production has been discussed.","PeriodicalId":420824,"journal":{"name":"2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123613203","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: 15
Impact of PMU sychronization on wide area state estimation PMU同步对广域状态估计的影响
2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2011-12-01 DOI: 10.1109/AMPS.2011.6090430
Junjie Tang, M. Lixia, Junqi Liu, C. Muscas, A. Monti
{"title":"Impact of PMU sychronization on wide area state estimation","authors":"Junjie Tang, M. Lixia, Junqi Liu, C. Muscas, A. Monti","doi":"10.1109/AMPS.2011.6090430","DOIUrl":"https://doi.org/10.1109/AMPS.2011.6090430","url":null,"abstract":"This paper investigates the impact of the PTP (Precision Time Protocol) synchronization method, used to synchronize different Phasor Measurement Units (PMUs), on a state estimation application. As a case of study, the output data of the PMUs, synchronized by means of a software-only implementation of the PTP, have been used to estimate the state of an IEEE 57-bus power system.","PeriodicalId":420824,"journal":{"name":"2011 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124309020","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
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