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2015 IEEE Eindhoven PowerTech最新文献

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Wind farms generation limits and its impact in real-time voltage stability assessment 风电场发电限制及其对实时电压稳定性评估的影响
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232771
Ángel Pérez, H. Jóhannsson, J. Ostergaard
{"title":"Wind farms generation limits and its impact in real-time voltage stability assessment","authors":"Ángel Pérez, H. Jóhannsson, J. Ostergaard","doi":"10.1109/PTC.2015.7232771","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232771","url":null,"abstract":"This paper proposes a method to consider the impact of the wind farms maximum current limits on real-time voltage stability assessment. The approach is based in a multi-port equivalent of the system which makes possible to assess the effect of each wind farm limit on the stability boundary, the approach indicates the distance to the limit activation and the effect of each load in such a limit. The wind farm control schemes includes voltage control and it is represented as a constant current at its limit. A criteria to select the critical bus bar, based on the generator transformation coefficients, is presented. This methodology is tested in a platform that produces synthesized PMU measurements from time-domain simulations and critical boundary for the wind-farm limits are shown. The methodology is also tested for synchronous machines and its parallel structure is exploited when implemented in a High Performance Computing environment. A computational time under 2ms shows that the method is suitable for real-time applications.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117191578","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: 7
Study on reactive power control of large-scale photovoltaic system for voltage regulation with long distribution line 大型长配电线路调压光伏系统无功功率控制研究
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232824
K. Kouno, T. Sogabe, Katsushi Itou, M. Hojo
{"title":"Study on reactive power control of large-scale photovoltaic system for voltage regulation with long distribution line","authors":"K. Kouno, T. Sogabe, Katsushi Itou, M. Hojo","doi":"10.1109/PTC.2015.7232824","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232824","url":null,"abstract":"Constant power factor control of a power conditioning system in a large-scale photovoltaic generation system (PV system), such as a mega-solar system, is introduced to mitigate voltage variations on a distribution line. However, it is difficult for the control to mitigate the voltage variation on a long distribution line because of the loss on the distribution line. This paper proposes an advanced reactive power control, in which the power factor of the PV system is adjusted both by output power of the PV system and by apparent power of loads not to minimize the voltage variation at the interconnection point but to minimize the voltage variation over the whole distribution line, and reports the result examined by numerical analysis about mitigating the voltage variation by applying the control. This paper shows that the proposed control can mitigate the voltage variation more than constant power factor control and there is a probability that it will be applied as a measure of suppressing the voltage variation on the long distribution line.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"16 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123580912","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: 4
Integration of PV system into LV distribution networks with Demand Response application 光伏系统与低压配电网的集成及需求响应应用
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232777
C. K. Gan, M. Shamshiri, D. Pudjianto
{"title":"Integration of PV system into LV distribution networks with Demand Response application","authors":"C. K. Gan, M. Shamshiri, D. Pudjianto","doi":"10.1109/PTC.2015.7232777","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232777","url":null,"abstract":"The increasing number of PV system connected to LV distribution networks may trigger network reinforcement to maintain voltages and power flows within the statutory limits. The paper aims to investigate how different levels of Demand Response (DR) participation can facilitate the integration of PV. In order to get robust conclusion, fractal-based generic distribution network model is used to generate many statistically similar networks. Subsequently, a Particle Swarm Optimization approach to model the optimal demand pattern for various levels of DR participation is investigated in the study. The results suggest that DR can significantly improve self (local) consumption of PV output. As a result, network losses decrease and the voltage rise effect at high PV penetration can be alleviated.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"326 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124300611","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
Energy storage and DSM opportunities in the future European power system 未来欧洲电力系统的储能和DSM机遇
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232732
P. Wiernes, A. Moser
{"title":"Energy storage and DSM opportunities in the future European power system","authors":"P. Wiernes, A. Moser","doi":"10.1109/PTC.2015.7232732","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232732","url":null,"abstract":"At present, European countries are seeking ways to reduce carbon emissions. To achieve this, they have set ambitious emissions reduction goals. Thus, in this paper, a novel strategic planning methodology is used in order to determine the most appropriate power system for Europe by the year 2050. The planning methodology jointly optimizes generation and transmission expansion alternatives considering renewable energy, energy storage and demand-side management, in order to minimize total costs. Technical and environmental aspects are considered by optimization model constraints. In this work, demand-side management is seen as an option to test the power system design under the assumption that a certain percentage of the load can be shifted. Moreover, sensitivity analyses are performed in order to evaluate the impact of different investment costs of storage technologies. Results show how different flexible demand levels, as well as different investment costs of storage technologies, technically and economically affects the future European power system.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125213319","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
Inertial frequency response estimation in a power system with high wind energy penetration 高风能渗透电力系统的惯性频率响应估计
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232516
J. D. Lara-Jiménez, J. Ramirez
{"title":"Inertial frequency response estimation in a power system with high wind energy penetration","authors":"J. D. Lara-Jiménez, J. Ramirez","doi":"10.1109/PTC.2015.7232516","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232516","url":null,"abstract":"In this paper a procedure for estimating the inertial frequency response of a power system with high wind energy penetration is presented, and the influence of the wind power fluctuations on the variability of the inertial response is analyzed. The procedure is based on the accuracy of the disturbance start-time detection and the frequency's rate of change. An algorithm for estimating the disturbance start time (DST) is proposed and validated using measured frequency transients. The rate of change of frequency (ROCOF) calculation is carried out using a linear-regression-based method. The procedure is applied in the analysis of an equivalent of the Mexican power system, assuming three wind energy penetration scenarios affected by different disturbances.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125411844","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
Load pseudomeasurements in distribution system state estimation 配电系统状态估计中的负荷伪测量
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232546
Georgia Pieri, M. Asprou, E. Kyriakides
{"title":"Load pseudomeasurements in distribution system state estimation","authors":"Georgia Pieri, M. Asprou, E. Kyriakides","doi":"10.1109/PTC.2015.7232546","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232546","url":null,"abstract":"Distribution system state estimation (DSSE) is an essential tool in active distribution grids in order to enhance the awareness of the power system operators regarding the state of the distribution system. One of the peculiarities of the DSSE is the lack of adequate real-time measurements. Thus, in this paper a three-phase DSSE algorithm enhanced with an advanced approach for modeling pseudomeasurements is proposed. The major innovation of the proposed methodology is the development of a DSSE algorithm based on limited real-time measurements. The proposed DSSE algorithm takes into account the unbalanced nature of the distribution systems and the presence of virtual measurements. The pseudomeasurements are obtained from historical data, through a Gaussian Mixture Model (GMM) methodology, improved by the Calinski & Harabasz (CH) criterion and the Expectation Maximization (EM) algorithm. The performance of the proposed methodology is illustrated on the IEEE 13 node test feeder and compared with the case where the pseudomeasurements are modeled through a normal distribution.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125442962","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: 7
A framework for analyzing and optimizing renewable energy portfolios 分析和优化可再生能源组合的框架
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232423
S. V. Chakraborty, S. Shukla, J. Thorp
{"title":"A framework for analyzing and optimizing renewable energy portfolios","authors":"S. V. Chakraborty, S. Shukla, J. Thorp","doi":"10.1109/PTC.2015.7232423","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232423","url":null,"abstract":"With growing penetration of renewable energy sources in power grids, it is increasingly important to reduce the renewable power forecasting error and variability to maintain balance of grid load and supply and participate in wholesale energy markets. Power from weather-dependent renewable sources like wind and solar are particularly subject to variability and forecasting error. In this study we propose an innovative framework for analyzing the renewable generators at a given location and constructing energy portfolios that minimize the variability and forecasting error of the overall power output. The framework's key innovations are (1) its ease of automated implementation and (2) its ability to work even without any geographical diversity. We have implemented this framework for wind turbines and solar photovoltaics, and successfully executed it for a location in eastern USA. The results from this experiment have been quite promising and they demonstrate that both renewable power forecasting error and variability can be reduced by 40% with our framework.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126267109","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
Software architecture development and implementation of a synchrophasor-based real-time oscillation damping control system 基于同步相量的实时振荡阻尼控制系统的软件体系结构开发与实现
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232288
E. Rebello, L. Vanfretti, Md Shoaib Almas
{"title":"Software architecture development and implementation of a synchrophasor-based real-time oscillation damping control system","authors":"E. Rebello, L. Vanfretti, Md Shoaib Almas","doi":"10.1109/PTC.2015.7232288","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232288","url":null,"abstract":"Low-frequency, electro-mechanically induced, inter-area oscillations have in the past, posed a serious threat to the stability of interconnected power systems. Wide Area Monitoring, Protection and Control (WAMPAC) systems based on wide-area measurements can be exploited to address the inter-area oscillation problem. This work develops a modular software architecture for a prototype WAMPAC control system. A Compact Reconfigurable Input Output (cRIO) controller from National Instruments is used to implement the real-time prototype. This paper presents the design process followed for the development of the software architecture. The design method followed a three step process of design proposal, refinement and attempted implementation. Results from each iteration are used to improve the next. The goals of the design, the challenges faced and the refinements necessary are presented. The details of the final implementation in LabVIEW are also documented.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126268756","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
Optimum scheduling of non-utility facility with battery storage under a price-taking scheme 定价方案下非公用设施电池储能的最优调度
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232608
S. Nuchprayoon
{"title":"Optimum scheduling of non-utility facility with battery storage under a price-taking scheme","authors":"S. Nuchprayoon","doi":"10.1109/PTC.2015.7232608","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232608","url":null,"abstract":"Modeling of non-utility facility with generation and battery storage is presented. The operation strategy for non-utility facility is determined by solving a daily generation scheduling problem under a price-taking scheme. Numerical simulations are performed under various scenarios. It is shown that the optimal strategy is complex when either fuel supply is limited or electric utility allows buy-back option for non-utility facility. The impacts of price and load variations on the complexity of solutions are investigated. The sizing of battery storage device is also examined.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125752104","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
Inertia considerations within unit commitment and economic dispatch for systems with high non-synchronous penetrations 高非同步渗透系统的机组投入惯性与经济调度
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232567
P. Daly, D. Flynn, N. Cunniffe
{"title":"Inertia considerations within unit commitment and economic dispatch for systems with high non-synchronous penetrations","authors":"P. Daly, D. Flynn, N. Cunniffe","doi":"10.1109/PTC.2015.7232567","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232567","url":null,"abstract":"The priority dispatch status of non-synchronous renewable generation (wind, wave, solar), and increasing levels of installed high voltage direct current interconnection between synchronous systems, is fundamentally changing unit commitment and economic dispatch (UCED) schedules. Conventional synchronous plant, the traditional provider of services which ensure frequency stability - synchronising torque, synchronous inertia and governor response - are being displaced by marginally zero cost non-synchronous renewables. Such a trend has operational security implications, as systems - particularly synchronously isolated systems - may be subject to higher rates of change of frequency and more extreme frequency nadirs/zeniths following a system disturbance. This paper proposes UCED-based strategies to address potential shortfalls in synchronous inertia associated with high non-synchronous penetrations. The effectiveness of the day-ahead strategies is assessed by weighing the cost of the schedules against the risk level incurred (the initial rate of change of frequency following a generation-load imbalance), and the level of wind curtailment engendered.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130237243","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: 61
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