Proceedings of the 21st International Conference on Power Industry Computer Applications. Connecting Utilities. PICA 99. To the Millennium and Beyond (Cat. No.99CH36351)最新文献

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Application of data mining techniques to load profiling 数据挖掘技术在负载分析中的应用
B.D. Pitt, D.S. Kitschen
{"title":"Application of data mining techniques to load profiling","authors":"B.D. Pitt, D.S. Kitschen","doi":"10.1109/PICA.1999.779395","DOIUrl":"https://doi.org/10.1109/PICA.1999.779395","url":null,"abstract":"In the UK supply market, customers can purchase electricity from any supplier regardless of size and location. Accordingly there is special interest in understanding the nature of variations in load shape, to devise better competitive tariff structures and facilitate aggressive niche marketing. Utilities have databases of half-hourly loads too large to be interpreted by hand and eye; potentially valuable information is hidden therein which is not revealed by coarse statistics. The heterogeneity of response, the large number of predictors, and the sheer size of these databases impose severe theoretical and computational difficulties on load shape modeling. Data mining refers (in part) to the use of adaptive nonparametric models (which vary their strategy according to the local nature of the data) for efficiently discovering knowledge in just such databases. A method centering on adaptive decision tree clustering of load profiles is presented, and results utilising an actual database are discussed.","PeriodicalId":113146,"journal":{"name":"Proceedings of the 21st International Conference on Power Industry Computer Applications. Connecting Utilities. PICA 99. To the Millennium and Beyond (Cat. No.99CH36351)","volume":"325 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133953513","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
Reliability and capacity: a spatial load forecasting method for a performance based regulatory environment 可靠性和容量:基于性能的监管环境的空间负荷预测方法
R.E. Brown, A. Hanson, M. Marshall, H. Willis
{"title":"Reliability and capacity: a spatial load forecasting method for a performance based regulatory environment","authors":"R.E. Brown, A. Hanson, M. Marshall, H. Willis","doi":"10.1109/PICA.1999.779396","DOIUrl":"https://doi.org/10.1109/PICA.1999.779396","url":null,"abstract":"This paper presents a load forecasting method that yields results useful for substation and feeder planning while providing a conceptually simple framework for data entry. The method couples existing system and load knowledge, load growth patterns and horizon year information to permit development of multiple scenarios for spatial load growth progression from existing land use patterns. In addition, the method allows for an intimate connection between the spatial load forecasting model, a circuit model, and a reliability model. This results in a fully integrated planning tool where the impact of load growth on both electrical performance and reliability performance can be quantified. This type of analysis will be critical for utilities subject to performance based rates.","PeriodicalId":113146,"journal":{"name":"Proceedings of the 21st International Conference on Power Industry Computer Applications. Connecting Utilities. PICA 99. To the Millennium and Beyond (Cat. No.99CH36351)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127474084","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
Practical methods for transfer limit analysis in the power industry deregulated environment 放松管制环境下电力行业输电极限分析的实用方法
B.S. Gisin, M.V. Obessis, J. Mitsche
{"title":"Practical methods for transfer limit analysis in the power industry deregulated environment","authors":"B.S. Gisin, M.V. Obessis, J. Mitsche","doi":"10.1109/PICA.1999.779506","DOIUrl":"https://doi.org/10.1109/PICA.1999.779506","url":null,"abstract":"The rapid deregulation of the US power industry and the exploding number of bilateral transactions between control areas has necessitated the development of new tools and methods calculating and updating available transfer capability (ATC). ATC values must be rapidly updated for new capacity reservations, schedules or transactions. There is a strong demand to improve the uncertainty analysis of the ATC limits for a number of varying factors, including uncertainties in the location of the delivery and receiving points. New tools are required to compute capacity benefits and transmission reliability margins. This paper describes some of the novel practical methods for ATC sensitivity and uncertainty analysis that have been recently developed by the authors and have been used by numerous utilities in the US On large scale load flow cases with over 30,000 buses representing the entire Eastern interconnection.","PeriodicalId":113146,"journal":{"name":"Proceedings of the 21st International Conference on Power Industry Computer Applications. Connecting Utilities. PICA 99. To the Millennium and Beyond (Cat. No.99CH36351)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128361865","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: 50
Implementation of regulation as an ancillary service in Eskom and the use of Eskom internal web for this service 在Eskom实施作为辅助服务的法规,并使用Eskom内部网站进行这项服务
G. Chown, M. Coetzee
{"title":"Implementation of regulation as an ancillary service in Eskom and the use of Eskom internal web for this service","authors":"G. Chown, M. Coetzee","doi":"10.1109/PICA.1999.779409","DOIUrl":"https://doi.org/10.1109/PICA.1999.779409","url":null,"abstract":"This paper describes the implementation of regulation as a competitive ancillary service in Eskom. Eskom is presently forming a grid operator business, which is responsible for buying ancillary services and providing a reliable transmission network. The process of defining system performance criteria is described. The total costing of the regulation service to a single coal-fired generator was done using EPRI cost calculations. The performance of an individual generator is calculated along the guidelines of NERC Policy 10, with no allowance for over-control. This performance criterion determines regulation performance and payment to the generator. Over 750 points an downloaded every 4 seconds from the energy management system. System performance and individual unit performance are calculated using standard packages. This information is then made available in near-real time on the Eskom internal web in graphic and tabular form. This allows each generator to continually see its actual performance.","PeriodicalId":113146,"journal":{"name":"Proceedings of the 21st International Conference on Power Industry Computer Applications. Connecting Utilities. PICA 99. To the Millennium and Beyond (Cat. No.99CH36351)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114845695","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: 14
Dynamic integration foundation for the utilities industry 为公用事业行业提供动态集成基础
H. Adleman, D. C. Haigh
{"title":"Dynamic integration foundation for the utilities industry","authors":"H. Adleman, D. C. Haigh","doi":"10.1109/PICA.1999.779392","DOIUrl":"https://doi.org/10.1109/PICA.1999.779392","url":null,"abstract":"The integration of applications has been a longtime goal of electric utilities, their business systems providers, and operations systems providers. In the past, application integration has been proposed but not successfully implemented because it failed to accommodate future technologies. This paper describes a computer architecture that not only delivers enterprise application integration solutions today, but also provides a framework that enables an easy evolution to tomorrow's technologies. This framework: is dynamic, because it allows for flexible workflow management and data re-mapping capabilities; enables application integration by providing interoperability of both data and functions across and between enterprise applications; and provides a foundation for expansion and evolution to new technologies using ANSI standard building blocks with proven integration capabilities today. This architecture, the utilities dynamic integration foundation, is illustrated by focusing on a solution for the needs of power distribution management.","PeriodicalId":113146,"journal":{"name":"Proceedings of the 21st International Conference on Power Industry Computer Applications. Connecting Utilities. PICA 99. To the Millennium and Beyond (Cat. No.99CH36351)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134249466","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
Integrated system for developing intelligent electronic standards book with Internet capability 具有互联网能力的智能电子标准图书开发集成系统
Hua Li, H. Chiang, R. Jones
{"title":"Integrated system for developing intelligent electronic standards book with Internet capability","authors":"Hua Li, H. Chiang, R. Jones","doi":"10.1109/PICA.1999.779393","DOIUrl":"https://doi.org/10.1109/PICA.1999.779393","url":null,"abstract":"This paper describes an integrated system for developing an intelligent, electronic standards book with Internet capability. The developed electronic standards book contains computer-aided design (CAD) drawings with hyperlinks to descriptive text, material management data, and procedures for safety, operating, and installation. A unique aspect is the set of hyperlinks to an expert system shell that aids field workers as the company moves to a process-oriented environment. The developed electronic standards book resides on the corporate server and appears as a well-linked web site. The book also resides on CD-ROM for field crews and has the same web site appearance as the corporate version. The CD-ROM version receives update information from the server. The full Internet capability and a seamless switch between those two web sites, based on a comprehensive logic, is provided by our developed Standards Book Viewer which integrates the standard web browser MSIE 4.0. The integrated system is developed within a mixed language programming environment of Microsoft Visual++, Java, and HTML. The digitalization of the standards books is performed using an interactive approach.","PeriodicalId":113146,"journal":{"name":"Proceedings of the 21st International Conference on Power Industry Computer Applications. Connecting Utilities. PICA 99. To the Millennium and Beyond (Cat. No.99CH36351)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128960728","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
A static optimization approach to assess dynamic available transfer capability 评估动态可用传输能力的静态优化方法
E. D. Tuglie, M. Dicorato, M. L. Scala, P. Scarpellini
{"title":"A static optimization approach to assess dynamic available transfer capability","authors":"E. D. Tuglie, M. Dicorato, M. L. Scala, P. Scarpellini","doi":"10.1109/PICA.1999.779507","DOIUrl":"https://doi.org/10.1109/PICA.1999.779507","url":null,"abstract":"This paper deals with the development of a nonlinear programming methodology for evaluating available transfer capability. The main feature of the approach is the capability to treat static and dynamic security constraints in a unique integrated piece of software. The algorithm has been implemented and tested on an actual power system.","PeriodicalId":113146,"journal":{"name":"Proceedings of the 21st International Conference on Power Industry Computer Applications. Connecting Utilities. PICA 99. To the Millennium and Beyond (Cat. No.99CH36351)","volume":"365 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115861391","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: 91
Optimization based bidding strategies in the deregulated market 放松管制市场中基于优化的竞价策略
Daoyuan Zhang, Yajun Wang, P. Luh
{"title":"Optimization based bidding strategies in the deregulated market","authors":"Daoyuan Zhang, Yajun Wang, P. Luh","doi":"10.1109/PICA.1999.779386","DOIUrl":"https://doi.org/10.1109/PICA.1999.779386","url":null,"abstract":"With the deregulation of electric power systems, market participants are facing an important task of bidding energy to an independent system operator (ISO). This paper presents a model and a method for optimization-based bidding and self-scheduling where a utility bids part of its energy and self-schedules the rest as in New England. The model considers ISO bid selections and uncertain bidding information of other market participants. With appropriately simplified bidding and ISO models, closed-form ISO solutions are first obtained. These solutions are then plugged into the utility's bidding and self-scheduling model which is solved by using Lagrangian relaxation. Testing results show that the method effectively solves the problem with reasonable amount of CPU time.","PeriodicalId":113146,"journal":{"name":"Proceedings of the 21st International Conference on Power Industry Computer Applications. Connecting Utilities. PICA 99. To the Millennium and Beyond (Cat. No.99CH36351)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131007383","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: 205
Optimal capacitor placement using deterministic and genetic algorithms 使用确定性和遗传算法的最佳电容器放置
M. Delfanti, G. Granelli, P. Marannino, M. Montagna
{"title":"Optimal capacitor placement using deterministic and genetic algorithms","authors":"M. Delfanti, G. Granelli, P. Marannino, M. Montagna","doi":"10.1109/PICA.1999.779515","DOIUrl":"https://doi.org/10.1109/PICA.1999.779515","url":null,"abstract":"A procedure for solving the power capacitor placement problem is presented. The objective is to determine the minimum investment required to satisfy suitable reactive constraints. Due to the discrete nature of reactive compensation devices, optimal capacitor placement leads to a nonlinear programming problem with mixed (discrete and continuous) variables. It is solved with an iterative algorithm based on successive linearizations of the original nonlinear model. The mixed integer linear programming problem to be solved at each iteration of the procedure is tackled by applying both a deterministic method (branch and bound) and genetic algorithm techniques. A hybrid procedure, aiming to exploit the best features of both algorithms is also considered. The proposed procedures are tested and compared with reference to a small CIGRE system and two actual networks derived from the Italian transmission and distribution system.","PeriodicalId":113146,"journal":{"name":"Proceedings of the 21st International Conference on Power Industry Computer Applications. Connecting Utilities. PICA 99. To the Millennium and Beyond (Cat. No.99CH36351)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115265260","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: 203
Fast calculation of linear available transfer capability 快速计算线性可用传输能力
G. Ejebe, J. Waight, M. Santos-Nieto, W. Tinney
{"title":"Fast calculation of linear available transfer capability","authors":"G. Ejebe, J. Waight, M. Santos-Nieto, W. Tinney","doi":"10.1109/PICA.1999.779505","DOIUrl":"https://doi.org/10.1109/PICA.1999.779505","url":null,"abstract":"This paper presents a detailed formulation and implementation of a fast program for power system available transfer capability (ATC) calculations. The formulation is based on the linear incremental power flow to account for the line flow thermal loading effects. An efficient linear ATC implementation enhances speed in processing a large number of contingencies to determine ATC for each specified transfer. Test and performance results for practical power system models are presented.","PeriodicalId":113146,"journal":{"name":"Proceedings of the 21st International Conference on Power Industry Computer Applications. Connecting Utilities. PICA 99. To the Millennium and Beyond (Cat. No.99CH36351)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127457549","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: 245
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