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IEEE Power Engineering Society General Meeting, 2004.最新文献

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Design of an under voltage load shedding scheme 低压减载方案的设计
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373144
J. Mechenbier, A. Ellis, R. Curtner, S. Ranade
{"title":"Design of an under voltage load shedding scheme","authors":"J. Mechenbier, A. Ellis, R. Curtner, S. Ranade","doi":"10.1109/PES.2004.1373144","DOIUrl":"https://doi.org/10.1109/PES.2004.1373144","url":null,"abstract":"This work describes the design and development of a controlled under voltage load shedding scheme (UVLS) for protection against fast and slow voltage collapse of the Public Service Company of New Mexico (PNM) transmission system. This UVLS was designed as a technically-effective and economically-viable control-based countermeasure to prevent voltage instability and collapse for low probability events involving the loss of multiple transmission elements. This work also discusses the effects of load modeling assumptions and summarizes PNM's load modeling and monitoring efforts at the distribution feeder level.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127755017","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: 20
Macromodeling based on frequency domain terminal responses 基于频域终端响应的宏建模
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373024
B. Gustavsen
{"title":"Macromodeling based on frequency domain terminal responses","authors":"B. Gustavsen","doi":"10.1109/PES.2004.1373024","DOIUrl":"https://doi.org/10.1109/PES.2004.1373024","url":null,"abstract":"In some situations, the information about a device can only be obtained by measurements at its the terminals. In the case of linear systems, frequency domain measurements and subsequent system identification allows a practical way of obtaining models, which are directly compatible with EMTP-like simulation programs. The major challenges are pole identification, passivity enforcement, and accuracy of the resulting model. This paper gives an outline of approaches and challenges.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132710592","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
Alleviating congestion of an actual power system by genetic algorithms 利用遗传算法缓解实际电力系统的拥塞
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373259
J. M. Ramirez, G. Marín
{"title":"Alleviating congestion of an actual power system by genetic algorithms","authors":"J. M. Ramirez, G. Marín","doi":"10.1109/PES.2004.1373259","DOIUrl":"https://doi.org/10.1109/PES.2004.1373259","url":null,"abstract":"This paper is aimed to propose a methodology for handling the congestion of electric power systems (EPS) that allows to encompass the treatment of problems of expansion and operation of EPS, traditionally treated separately. It is versatile and easy of implementing; besides, the solution gives explicit information to take decisions. Genetic algorithms are successfully employed to solve the posed problem, through the smart definition of chromosomes. Results are presented of the proposed methodology when it is applied to the power system of an actual utility. Operative strategies arise that allow to alleviate overloads' problem that it exhibits.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132940828","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
Reserve adequacy requirements: the recent developments in the Italian system 准备金充足要求:意大利体系的最新发展
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1372995
L. Salvaderi
{"title":"Reserve adequacy requirements: the recent developments in the Italian system","authors":"L. Salvaderi","doi":"10.1109/PES.2004.1372995","DOIUrl":"https://doi.org/10.1109/PES.2004.1372995","url":null,"abstract":"Summary form only given. The Italian power system has gradually carried out its restructuring, as governed in Europe by the Directive 96/92/EC and in Italy by the new \"Electric Law\", the so called Bersani Decree 79/99 of 31/3/1999. Italy has an independent regulator for electricity and gas, established by the Law of 14 November, 1995, no. 481, well ahead of the market opening. At the end of 1999, 32% of the previous monopolistic vertically integrated utility ENEL Spa, was sold and the company has been progressively unbundled. This paper presents an overview of the recent development in the Italian power system.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"331 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133242988","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
The measurement and evaluation of distribution transformer losses under nonlinear loading 非线性负载下配电变压器损耗的测量与评价
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373098
A. Damnjanovic, G. Feruson
{"title":"The measurement and evaluation of distribution transformer losses under nonlinear loading","authors":"A. Damnjanovic, G. Feruson","doi":"10.1109/PES.2004.1373098","DOIUrl":"https://doi.org/10.1109/PES.2004.1373098","url":null,"abstract":"Harmonic currents, generated by nonlinear electronic loads, produce 'penalty losses' in every element of an electrical distribution system. These harmonic-related losses reduce system efficiency, cause apparatus overheating, and increase power and air conditioning costs. Harmonic currents effectively de-rate existing systems and, when accommodated, add substantially to the capital cost of new distribution systems. The measurement and evaluation of transformer losses under linear and nonlinear load conditions will be discussed. In addition, typical financial benefits that result from the application of high efficiency harmonic mitigating distribution transformers, under nonlinear loading, will be calculated.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133307685","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: 21
Governor control study at the time of a black start 调控研究在黑时开始
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373127
K. Furukawa, A. Izena, T. Shimojo, K. Hirayama, N. Furukawa
{"title":"Governor control study at the time of a black start","authors":"K. Furukawa, A. Izena, T. Shimojo, K. Hirayama, N. Furukawa","doi":"10.1109/PES.2004.1373127","DOIUrl":"https://doi.org/10.1109/PES.2004.1373127","url":null,"abstract":"The power system of Kyushu Electric Power Company Inc. (KEPCO), whose size is about 19 GW, belongs to the Western Japan interconnected power system of 110 GW. Its grid system is made up of 500 and 220 kV transmission lines in a looped configuration. When the KEPCO power system falls into a blackout, it will be restored from a small-scale power system to the extent that it cannot be compared with its grid size (110 GW) usually operated. First some prespecified hydro-generators will be started and interconnected with each other, and then a load will be added step by step to configure a small-scale power system. The governor type of those hydro generators to be used for a black start will be a mixture of PID governors and PD governors (proportional control with transient droop). This work reports a frequency stability study for such a small-scale power system with hydro generators at the time of a black start.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133510474","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
Distributed generation planning in the deregulated electricity supply industry 解除管制的电力供应行业中的分布式发电规划
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373248
B. Kuri, Furong Li
{"title":"Distributed generation planning in the deregulated electricity supply industry","authors":"B. Kuri, Furong Li","doi":"10.1109/PES.2004.1373248","DOIUrl":"https://doi.org/10.1109/PES.2004.1373248","url":null,"abstract":"Distributed generation (DG) is increasingly becoming more important in the power system because of its high efficiency, small size, low investment cost, modularity and most significantly, its ability to exploit renewable energy resources. However commercial and regulatory requirements create challenges for the deployment of DG in distribution systems. Due care must be taken during the planning stage to ensure that system security and quality of supplies are not degraded by the introduction of the new DG. It is also important, particularly in deregulated environment, that the DG scheme must be economically viable. The task of distributed generation planning is further complicated by many uncertainties and risks in today's power markets that render the traditional deterministic planning tools inadequate. This work proposes a framework for embedded generation planning in line with these challenges and with special emphasis on the risks and uncertainties.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133750326","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: 23
Data management issues associated with the August 14, 2003 blackout investigation 与2003年8月14日停电调查相关的数据管理问题
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373160
J. Dagle
{"title":"Data management issues associated with the August 14, 2003 blackout investigation","authors":"J. Dagle","doi":"10.1109/PES.2004.1373160","DOIUrl":"https://doi.org/10.1109/PES.2004.1373160","url":null,"abstract":"The largest blackout in the history of the North American electric power grid occurred on August 14, 2003. An extensive investigation into what happened (and why) began immediately. The joint U.S.-Canadian task force led the effort, including support from the electric utility industry and several federal agencies, e.g. the U.S. Department of Energy. The North American Electric Reliability Council (NERC) supported the task force, including particularly the electricity working group. The overall blackout investigation team drew expertise from a large number of organizations, assembled into teams to address specific attributes of the blackout. This work describes the data management issues associated with supporting the blackout investigation, beginning with the immediate response in the days and weeks following the blackout, supporting the interim report, to the long-term plans for deriving lessons learned for implementing improvements in the overall process of outage disturbance reporting. The sole focus of This work is the electricity working group activities at NERC; the security and nuclear working groups are outside the scope of this paper.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116145839","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: 38
Application of phase shifting transformers for a secure and efficient operation of the interconnection corridors 移相变压器在互联走廊安全高效运行中的应用
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373043
P. Bresesti, M. Sforna, V. Allegranza, D. Canever, R. Vailati
{"title":"Application of phase shifting transformers for a secure and efficient operation of the interconnection corridors","authors":"P. Bresesti, M. Sforna, V. Allegranza, D. Canever, R. Vailati","doi":"10.1109/PES.2004.1373043","DOIUrl":"https://doi.org/10.1109/PES.2004.1373043","url":null,"abstract":"In the liberalized energy markets, TSOs are more and more required to have a better control of network power flows in order to maintain a secure and efficient operation of the system. The paper describes the phase shifting transformer (PST) model implemented in the CESI programs and the analyses performed, on behalf of the Italian ISO (GRTN), for assessing the installation of PSTs on the Italian east border interconnection. In this case, the control action of the PSTs aims at mitigating uncontrolled \"parallel flows\" and unbalanced sharing of power among circuits. Three different solutions with increasing number PSTs were identified and simulated. Furthermore, a precontingency bucking angle is calculated for the PST installed in the weakest circuit in order to alleviate the post-contingency overload and to avoid the untimely intervention of line protections.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122996549","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: 51
Frequency domain analysis of electromagnetic transients through the numerical Laplace transforms 利用数值拉普拉斯变换进行电磁瞬变的频域分析
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373022
A. Ramirez, P. Gómez, P. Moreno, A. Gutierrez
{"title":"Frequency domain analysis of electromagnetic transients through the numerical Laplace transforms","authors":"A. Ramirez, P. Gómez, P. Moreno, A. Gutierrez","doi":"10.1109/PES.2004.1373022","DOIUrl":"https://doi.org/10.1109/PES.2004.1373022","url":null,"abstract":"This article presents an overview of the numerical Laplace transform (NLT) technique for analyzing power system transients. The relevance of this technique as complement to standard time domain analysis methods is discussed. A brief historic account is made of the developments that gave rise to the NLT technique. The essentials of the technique are given. An account of various current practices in the implementation of the NLT is discussed and an application example is included.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122679669","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: 22
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