IEEE Computer Applications in Power最新文献

{"title":"Visualize system simulation and measurement data [power systems]","authors":"L. Grebe, S. Smith","doi":"10.1109/67.773813","DOIUrl":"https://doi.org/10.1109/67.773813","url":null,"abstract":"This paper presents an overview of an easily accessible software tool which allows engineers to integrate, compare and manipulate power system data from various sources. The program allows the visualisation of power system data from a variety of time and frequency domain simulation programs and measuring instruments. This article provides a detailed account of the program's structure and methodology for data import and processing. The following capabilities are discussed: data management; data display; data processing; data formatting; and data sharing.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114681676","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":"How many feeders best suit your network","authors":"L. Kerford, D. Rigler","doi":"10.1109/67.773808","DOIUrl":"https://doi.org/10.1109/67.773808","url":null,"abstract":"It is not unusual for rural 11 kV distribution systems in the UK to be divided into four or five feeders associated with a single primary infeed. This is for a number of reasons concerning design standards, network constraints, costs, and performance. This article presents a method for determining the number of feeders that is suitable for radial networks. The input data for the model is crucial and is discussed before the results for losses, reliability, and network costs are presented. A simple optimization of these results is then carried out and discussed.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"197 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123459883","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":"Forecasting energy prices in a competitive market","authors":"J. Bastian, Jinxiang Zhu, V. Banunarayanan, R. Mukerji","doi":"10.1109/67.773811","DOIUrl":"https://doi.org/10.1109/67.773811","url":null,"abstract":"Deregulation is intended to encourage competition among utilities and power marketers to reduce energy prices. The pricing system is very critical in restructuring the electrical industry and depends upon market rules and the function of the independent system operator (ISO). The locational marginal pricing (LMP) system is in use in the Pennsylvania, New Jersey, Maryland (PJM) Interconnection ISO and is proposed for the New York ISO, which is expected to be in operation in 1999. This article provides fundamental concepts of the LMP and outlines the basic requirements for a computer simulation tool to accurately forecast prices in an LMP-based market. Examples are used to demonstrate the concepts, and some preliminary results for the Eastern Interconnection are presented.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123327645","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":"AC-DC power system analysis [Book Review]","authors":"J. Arrillaga, B. Smith, B. Wollenberg","doi":"10.1109/MCAP.1999.773814","DOIUrl":"https://doi.org/10.1109/MCAP.1999.773814","url":null,"abstract":"The power industry throughout the world is looking for ways to increase the capacity of transmission paths as well as means that allow better control of power flow on existing transmission equipment. One means that is becoming more prevalent is the use of d c transmission. AC-DC Power System Analysis, a book published by the Institution of Electrical Engineers QEE), UK, as part of their Power and Energy Series, continues a fine tradition of textbooks on power system analysis from Canterbury, New Zealand [ 1,2]. The text deals with analytical methods for the analysis of power systems that contain ac-dc converters and inverters. In particular, the book's main emphasis is on the use of these techniques for system studies where the power system contains or is influenced by ac-dc converters. The techniques covered include power flow (both conventional positive sequence and three phase power flow), harmonic analysis, analysis of the switching circuits using electromagnetic transient simulation software, and electromechanical stability analysis. In addition, the authors provide a complete set of appendices that cover the necessary numerical analysis background. The topics are all aimed at giving the reader an understanding of the methods necessary for the analysis of a c d c power system components. These methods are necessary if engineers are to properly design the a c d c converters, the necessary equipment that must be added outside the converters, and the effects of t h e s e converters on the remainder of the system. The first and second chapters start by introducing the reader to circuits with controlled \" valves \" that are drawn as diodes but have the important prop erty of having their \" firing \" controlled by an external signal. The second chapter C Power System Anc shows how the valves are connected and \" fired \" so as to effect either a rectifi-cation from acto dc or inversion from dc to ac. This is done for both balanced and unbalanced conditions. The reader is introduced t o the harmonic analysis problem that must be dealt with in any circuitry with switching elements. Chapter three begins the introduction of the numerical methods necessary to carry out the simulation of the a c d c converters within a conventional power flow. Common power flow numerical techniques such as Newton-Raphson and Decoupled Newton methods are used, but in quite different ways for analysis of voltages and currents …","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129918260","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":"Data mining","authors":"C. Olaru, L. Wehenkel","doi":"10.4018/978-1-59140-051-6","DOIUrl":"https://doi.org/10.4018/978-1-59140-051-6","url":null,"abstract":"Data mining (DM) is a folkloric denomination of a complex activity that aims at extracting synthesized and previously unknown information from large databases. It denotes also a multidisciplinary field of research and development of algorithms and software environments to support this activity in the context of real-life problems where often huge amounts of data are available for mining. There is a lot of publicity in this field and also different ways to see the things. Hence, depending on the viewpoints, DM is sometimes considered as just a step in a broader overall process called knowledge discovery in databases (KDD), or as a synonym of the latter. This tutorial presents the concept of data mining and aims at providing an understanding of the overall process and tools involved: how the process turns out, what can be done with it, what are the main techniques behind it, and which are the operational aspects. The tutorial also describes a few examples of data mining applications, so as to motivate the power system field as a very opportune data mining application.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129668795","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":"Data communications in a deregulated environment","authors":"M. Adamiak, W. Premerlani","doi":"10.1109/67.773809","DOIUrl":"https://doi.org/10.1109/67.773809","url":null,"abstract":"The trend toward electric utility deregulation is moving full speed ahead throughout the world. As a result, the integration, consolidation, and dissemination of information both inter- and intra-utility has become a critical piece of the deregulation picture. Information traditionally used only within a given utility now becomes desired by many players. The general trend in the industry has been toward the use of the Internet for the transfer of data. The Electric Power Research Institute (EPRI) launched a concept in 1990 known as the Utility Communication Architecture (UCA). The goal behind UCA was to identify a suite of existing communication protocols that could be easily mixed and matched, provide the foundation for the functionality required to solve the utility enterprise communication issues, and be extensible for the future. UCA provides a network solution to the interconnection of data sources, similar to the Web solution used throughout the world to interconnect computers. At this time, the next generation of intelligent electronic devices (IEDs) based on UCA are coming to the market. These devices are focused on networking in the substation and are based on an MMS/Ethernet profile with one of two networking layers in between.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130200965","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":"Security applications and architecture for an open market","authors":"P. Hirsch, S. Lee","doi":"10.1109/67.773806","DOIUrl":"https://doi.org/10.1109/67.773806","url":null,"abstract":"With increased energy use, very little new transmission, and open access, the electric power system is experiencing much greater levels of regional transfers. These new requirements push the system to its limits for maximum economic benefit, while maintaining adequate security margins requires online real-time network analysis. An interconnected system can collapse due to a number of different limits being exceeded: thermal, voltage stability, transient stability, and dynamic stability. EPRI has been developing the infrastructure to extract data from proprietary EMS systems, tools to collect and manage large amounts of modeling data, and advanced security applications. These applications will significantly improve the security and efficiency of the operation of the electric power grid for the benefit of all users. EPRI's Grid Operations and Planning department has been working with its members and with the North American Reliability Council to develop technology to: improve data exchange and data communication for security applications; develop transactions systems for tracking transmission reservations and energy schedules; and develop advanced security and reliability applications that use this technology. This article is a summary of technology that has been developed, or is in the process of being developed, that would be useful in improving real-time data modeling exchange for security applications and online security applications that use this technology.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128643370","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 Call for Technological Literacy","authors":"W. Wulf","doi":"10.1109/MCAP.1999.755637","DOIUrl":"https://doi.org/10.1109/MCAP.1999.755637","url":null,"abstract":"Technology has transformed virtually every aspect of American life. People rely on technology every day in countless ways, including for transportation, communication, medical care, entertainment, the food they eat, the clothing they wear, and the buildings in which they live and work. Yet, most Americans do not understand how technology works, how it is c rea ted , how it impacts their daily lives, or its potential for changing the future. The nation's collective ignorance about technology is reflected in such seemingly trivial things as consumer discomfort with electronic appliances , like computers and V C R s . More worrisome, it surfaces in public discussion about the development and use of certain technologies. Informed, reasoned debate about such issues as nuclear power and cloning, for example, is nearly impossible today, although both technologies will likely play critical roles in our future. For the most part, the danger signs of technological illiteracy are subtle and largely ignored. Since becoming president of the National Academy of Engineering (NAE), I have spoken out forcefully and often about the need for greater technological literacy in the United States. I firmly believe that our continued success as a nation depends on all Americans having a firmer grasp of technological issues. This is especially true for our children, who are inheriting a world driven by, and by no small measure dependent on, technology. By technological literacy, I mean the ability to understand, use, and make sound decisions about technology. I do not mean simply the use of computers is a potent tool, when used intelligently, but it is only one ele ment of the vision I want to promote.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116823595","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":"Tapping IED data to find transmission faults","authors":"W. Peterson, D. Novosel, D. Hart, T. W. Cease, J. Schneider","doi":"10.1109/67.755644","DOIUrl":"https://doi.org/10.1109/67.755644","url":null,"abstract":"This article describes a data analysis tool that allows electric utility personnel to automatically and accurately compute the location of faults on power transmission lines and analyze fault data without cumbersome manual data retrieval and calculation procedures. When a fault is detected anywhere on the power network, an operator needs only to identify the faulted line, and the data analysis tool will compute the location of the fault as accurately as possible using the information available.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127238157","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":"Public domain tools clarify power flow studies","authors":"G. Comegys, W. Powell, L. Stadler","doi":"10.1109/67.755645","DOIUrl":"https://doi.org/10.1109/67.755645","url":null,"abstract":"Transmission users may benefit by analyzing their power transmission system using a suite of public domain tools that could provide insight into the calculations of the transmission provider. The potential benefits of a hands on approach are detailed and the quality and consistency of the calculations should be of interest to all transmission users.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"216 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127155219","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}