In order to position themselves for the coming competitive energy marketplace, utilities must judiciously improve their transmission and distribution system to provide the highest quality power to their customers. In this light, the knowledge of what caused particular voltage sags can be invaluable in deciding where to spend a limited capital improvement budget. This article describes an integrated system of databases that correlates voltage sags with transmission line faults and any corresponding lightning strikes that caused the fault. By determining the critical locations for susceptibility to lightning-induced faults, remedial measures can be tactically implemented to improve both the lightning protection and the fault performance of the system. In addition, disturbances not caused by lightning can be identified so that other causes can be determined.
{"title":"Correlating voltage sags with line faults and lightning","authors":"F. Elmendorf, L. King, M. Ingram","doi":"10.1109/67.917581","DOIUrl":"https://doi.org/10.1109/67.917581","url":null,"abstract":"In order to position themselves for the coming competitive energy marketplace, utilities must judiciously improve their transmission and distribution system to provide the highest quality power to their customers. In this light, the knowledge of what caused particular voltage sags can be invaluable in deciding where to spend a limited capital improvement budget. This article describes an integrated system of databases that correlates voltage sags with transmission line faults and any corresponding lightning strikes that caused the fault. By determining the critical locations for susceptibility to lightning-induced faults, remedial measures can be tactically implemented to improve both the lightning protection and the fault performance of the system. In addition, disturbances not caused by lightning can be identified so that other causes can be determined.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123771943","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}
Implementing precision agriculture for farm management requires improved sensing and control beyond that commonly used today. This article describes how existing power lines are being used to reduce implementation and operating costs for automating existing agricultural irrigation controls.
{"title":"Sprinklers and power lines","authors":"R. Wall","doi":"10.1109/67.917582","DOIUrl":"https://doi.org/10.1109/67.917582","url":null,"abstract":"Implementing precision agriculture for farm management requires improved sensing and control beyond that commonly used today. This article describes how existing power lines are being used to reduce implementation and operating costs for automating existing agricultural irrigation controls.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115549169","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}
One of the key conditions for correctly programming the Polish energy market development lies not only in the efficiency of current management, but also in the process of making rational decisions with respect to programming the development of the regional energy supply systems and the sources of such development financing. Making wise decisions will determine the future potential growth of the energy sector, its share in the market, and the potential to generate profit for the national economy. Proper modeling of the structure of national and local energy markets is a key to national economic development during this market transformation.
{"title":"Modeling the structure of local energy markets","authors":"W. Kamrat","doi":"10.1109/67.917583","DOIUrl":"https://doi.org/10.1109/67.917583","url":null,"abstract":"One of the key conditions for correctly programming the Polish energy market development lies not only in the efficiency of current management, but also in the process of making rational decisions with respect to programming the development of the regional energy supply systems and the sources of such development financing. Making wise decisions will determine the future potential growth of the energy sector, its share in the market, and the potential to generate profit for the national economy. Proper modeling of the structure of national and local energy markets is a key to national economic development during this market transformation.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123348079","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}
In addition to possessing traditional power engineering knowledge, graduates must also know how to apply computer systems and software, sophisticated equipment like robotics, computer-aided design and manufacturing techniques, and information technology tools.
{"title":"Challenges and initiatives in power engineering education","authors":"Seema Singh","doi":"10.1109/67.917584","DOIUrl":"https://doi.org/10.1109/67.917584","url":null,"abstract":"In addition to possessing traditional power engineering knowledge, graduates must also know how to apply computer systems and software, sophisticated equipment like robotics, computer-aided design and manufacturing techniques, and information technology tools.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115533826","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}
Of grave concern is the decline in the reliability of our bulk electric power systems brought on by restructuring. Conditions on our transmission systems have affected the installed capacity needed and how it should be operated. Some of the existing software packages that are being used to make reliability evaluations and to plan and operate systems are inadequate and should be used with careful restraint while new tools are being developed and coordinated with evolving institutional arrangements. To solve our reliability problems, additional technology is needed. Those developing needed software and computer methods should be made aware of the problems that are occurring on our transmission system and what it will take to solve them. This article provides some specific examples of these areas of concern.
{"title":"Reliability and tools for our times","authors":"J. Casazza","doi":"10.1109/67.876866","DOIUrl":"https://doi.org/10.1109/67.876866","url":null,"abstract":"Of grave concern is the decline in the reliability of our bulk electric power systems brought on by restructuring. Conditions on our transmission systems have affected the installed capacity needed and how it should be operated. Some of the existing software packages that are being used to make reliability evaluations and to plan and operate systems are inadequate and should be used with careful restraint while new tools are being developed and coordinated with evolving institutional arrangements. To solve our reliability problems, additional technology is needed. Those developing needed software and computer methods should be made aware of the problems that are occurring on our transmission system and what it will take to solve them. This article provides some specific examples of these areas of concern.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121506879","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}
D. Becker, H. Falk, J. Gillerman, S. Mauser, R. Podmore, L. Schneberger
Today's utility business environment of deregulation and more volatile energy markets has forced utilities to operate more efficiently and become more flexible. However, utilities cannot adapt to changing business conditions without having a flexible information technology (IT) infrastructure as well as information about and complete control of operational systems. While traditionally the business and power system control functions in an electric utility were run more or less separate and apart from each other, such isolation inhibits efficient operation and inhibits high-level, profit-oriented analysis from occurring. What is needed is a framework that enables data to be quickly shared, coalesced, and transformed into usable information. This framework should be robust enough so that, as new situations arise, information can be exchanged and analyzed in ways not previously anticipated. This article discusses utility application and data integration issues and related standards activities. A summary of work going on within the Electric Power Research Institute's (EPRI) Control Center Application Program Interface (CCAPT) task force, the International Electrotechnical Commission (IEC) working groups 13 and 14, and the Utility Domain task force in the Open Management Group (OMG) is provided. EPRI's Common Information Model (CIM) and Message Bus are described with emphasis on how they can be used to create a powerful and flexible enterprise architecture.
{"title":"Standards-based approach integrates utility applications","authors":"D. Becker, H. Falk, J. Gillerman, S. Mauser, R. Podmore, L. Schneberger","doi":"10.1109/67.876871","DOIUrl":"https://doi.org/10.1109/67.876871","url":null,"abstract":"Today's utility business environment of deregulation and more volatile energy markets has forced utilities to operate more efficiently and become more flexible. However, utilities cannot adapt to changing business conditions without having a flexible information technology (IT) infrastructure as well as information about and complete control of operational systems. While traditionally the business and power system control functions in an electric utility were run more or less separate and apart from each other, such isolation inhibits efficient operation and inhibits high-level, profit-oriented analysis from occurring. What is needed is a framework that enables data to be quickly shared, coalesced, and transformed into usable information. This framework should be robust enough so that, as new situations arise, information can be exchanged and analyzed in ways not previously anticipated. This article discusses utility application and data integration issues and related standards activities. A summary of work going on within the Electric Power Research Institute's (EPRI) Control Center Application Program Interface (CCAPT) task force, the International Electrotechnical Commission (IEC) working groups 13 and 14, and the Utility Domain task force in the Open Management Group (OMG) is provided. EPRI's Common Information Model (CIM) and Message Bus are described with emphasis on how they can be used to create a powerful and flexible enterprise architecture.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127774467","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}
Power system simulation involves a wide range of timeframes, starting at microseconds when simulating fast electromagnetic transients and extending to several years in system planning studies. The same system may have to be modeled and solved in many different ways, depending upon the studied event of interest. It has been desirable to have a single software platform from which several power system analysis functions can be easily activated for the same power system. The network under study may go through changes due to switching events, outages of equipment, generators, or loads. Such changes should be recorded only once and recognized by all applications running under this platform. Each application should have easy access to the results produced by any other application. This allows modular development, updating, or replacement of various applications independent of each other. Power Education Toolbox (PET) is such a software package and has been under development at Texas A&M University for several years. The GUI of PET allows users to create one-line diagrams of systems, specify components and simulation parameters, and view output.
{"title":"Educational toolbox for power system analysis","authors":"A. Abur, F. Magnago, Y. Lu","doi":"10.1109/67.876868","DOIUrl":"https://doi.org/10.1109/67.876868","url":null,"abstract":"Power system simulation involves a wide range of timeframes, starting at microseconds when simulating fast electromagnetic transients and extending to several years in system planning studies. The same system may have to be modeled and solved in many different ways, depending upon the studied event of interest. It has been desirable to have a single software platform from which several power system analysis functions can be easily activated for the same power system. The network under study may go through changes due to switching events, outages of equipment, generators, or loads. Such changes should be recorded only once and recognized by all applications running under this platform. Each application should have easy access to the results produced by any other application. This allows modular development, updating, or replacement of various applications independent of each other. Power Education Toolbox (PET) is such a software package and has been under development at Texas A&M University for several years. The GUI of PET allows users to create one-line diagrams of systems, specify components and simulation parameters, and view output.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132537144","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}
A sound design method is based upon a sound theoretical foundation, yet it offers degrees of freedom for artistic innovation. In the object oriented paradigm, the world is viewed as a collection of objects interacting with each other to achieve a meaningful behavior. The design perspective provided in this article can be used for many applications, such as power system state estimation and optimal power flow (OPF), and the sparse matrix class can be developed further to include eigenvalue analysis. As such, the architecture presented in this article is scalable.
{"title":"Object-oriented design for power system applications","authors":"S. Pandit, S. Soman, S. Khaparde","doi":"10.1109/67.876870","DOIUrl":"https://doi.org/10.1109/67.876870","url":null,"abstract":"A sound design method is based upon a sound theoretical foundation, yet it offers degrees of freedom for artistic innovation. In the object oriented paradigm, the world is viewed as a collection of objects interacting with each other to achieve a meaningful behavior. The design perspective provided in this article can be used for many applications, such as power system state estimation and optimal power flow (OPF), and the sparse matrix class can be developed further to include eigenvalue analysis. As such, the architecture presented in this article is scalable.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133434561","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}
D. Hart, D. Uy, J. Northcote-Green, C. Laplace, D. Novosel
As computers and other electronic equipment become the mainstay of today's businesses, customer awareness and intolerance for power system outages continues to heighten. For these customers, it is important that utilities be able to offer complete solutions to meet their needs. Depending on the customer load requirements, standby generation, uninterruptible power supply, or automatic restoration are possible solutions to improve the system reliability. In addition, utilities are becoming increasingly automated to keep up with the demands of the new business environments. As newly reregulated distribution companies emerge, it is likely that reliability indexes will be one of the key factors for regulators to examine to determine the overall performance of the distribution company. Thus, drivers for distribution automation include: remote control and restoration; targeted regions or customers for improved reliability and operation; performance based rates (PBR); and safety issues for circuit isolation. Whatever the driver for feeder automation, several key issues must be addressed: what automation scheme is required? How are communications implemented? This article addresses these issues with example solutions for overhead feeder automation.
{"title":"Automated solutions for distribution feeders","authors":"D. Hart, D. Uy, J. Northcote-Green, C. Laplace, D. Novosel","doi":"10.1109/67.876867","DOIUrl":"https://doi.org/10.1109/67.876867","url":null,"abstract":"As computers and other electronic equipment become the mainstay of today's businesses, customer awareness and intolerance for power system outages continues to heighten. For these customers, it is important that utilities be able to offer complete solutions to meet their needs. Depending on the customer load requirements, standby generation, uninterruptible power supply, or automatic restoration are possible solutions to improve the system reliability. In addition, utilities are becoming increasingly automated to keep up with the demands of the new business environments. As newly reregulated distribution companies emerge, it is likely that reliability indexes will be one of the key factors for regulators to examine to determine the overall performance of the distribution company. Thus, drivers for distribution automation include: remote control and restoration; targeted regions or customers for improved reliability and operation; performance based rates (PBR); and safety issues for circuit isolation. Whatever the driver for feeder automation, several key issues must be addressed: what automation scheme is required? How are communications implemented? This article addresses these issues with example solutions for overhead feeder automation.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121357689","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}
Present-day operating systems have graphical user interfaces (GUI) that are of great help in designing good user interfaces for application programs. Also, there have been dramatic improvements in computer power and power-to-price ratio. Acknowledgement is growing, even in technical environments, that good man-machine interfaces (MMI) have so many advantages that they are worth the effort of design and implementation. A good MMI can reduce the chance of making trivial errors that could be detected only very late during the simulation process, resulting in a great deal of wasted time. Nevertheless, in the electrical engineering community, programs that are not optimal on the MMI side are still in use. This article focuses on a study of the MMI main issues for a plotting program to visualize simulation and measurement data effectively. The resulting program, PlotXY, was developed in the rapid application development (RAD) environment of Borland C++ Builder, which is distributed for free and described in this article, along with the main ideas behind its interface.
当前的操作系统具有图形用户界面(GUI)，这对于为应用程序设计良好的用户界面有很大的帮助。此外，计算机性能和功率价格比也有了显著提高。即使在技术环境中，人们也越来越认识到，良好的人机界面(MMI)具有如此多的优点，值得为其设计和实现付出努力。一个好的MMI可以减少产生微小错误的机会，这些错误只有在模拟过程的后期才会被检测到，从而导致大量的时间浪费。然而，在电气工程界，在MMI方面不是最优的程序仍在使用。本文重点研究了MMI的主要问题，并开发了一个绘图程序，使仿真和测量数据有效地可视化。最终的程序PlotXY是在Borland c++ Builder的快速应用程序开发(RAD)环境中开发的，该环境是免费分发的，本文将对其进行描述，并介绍其接口背后的主要思想。
{"title":"Get a clear view of simulated and measured data","authors":"M. Ceraolo","doi":"10.1109/67.876869","DOIUrl":"https://doi.org/10.1109/67.876869","url":null,"abstract":"Present-day operating systems have graphical user interfaces (GUI) that are of great help in designing good user interfaces for application programs. Also, there have been dramatic improvements in computer power and power-to-price ratio. Acknowledgement is growing, even in technical environments, that good man-machine interfaces (MMI) have so many advantages that they are worth the effort of design and implementation. A good MMI can reduce the chance of making trivial errors that could be detected only very late during the simulation process, resulting in a great deal of wasted time. Nevertheless, in the electrical engineering community, programs that are not optimal on the MMI side are still in use. This article focuses on a study of the MMI main issues for a plotting program to visualize simulation and measurement data effectively. The resulting program, PlotXY, was developed in the rapid application development (RAD) environment of Borland C++ Builder, which is distributed for free and described in this article, along with the main ideas behind its interface.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124727920","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}
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