IEEE Computer Applications in Power

Issue 3 • July 1989

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Displaying Results 1 - 8 of 8
  • New control center for EPM in Medellin, Colombia (power system computer control)

    Publication Year: 1989, Page(s):9 - 14
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1171 KB)

    The municipal electric utility of Empresas Publicas de Medellin (EPM) in Medellin, Colombia, has completed the installation and testing of their new control center. These facilities, which include all the functions expected from a modern control center, were implemented through carefully monitored and executed project stages, which are described by the authors. They also describe the system layout... View full abstract»

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  • Turbine-generator shaft oscillation monitoring with PCs

    Publication Year: 1989, Page(s):15 - 18
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (545 KB)

    The use of a PC-based system to record the speed of the shaft on five of Utah Power & Light's largest steam turbine-generator units is described. This quantity will be fed to special protective relays. The relays are designed to detect mechanical resonance with natural frequencies below 60 Hz, called subsynchronous resonance.<> View full abstract»

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  • An interactive computer-graphics program to aid instruction in electric machinery

    Publication Year: 1989, Page(s):19 - 25
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (825 KB)

    A description is given of an interactive computer-graphics program that was developed in the School of Electrical Engineering at Cornell University (USA) as an adjunct to laboratory instruction in electric machinery. The program had three components, covering DC generator build-up, DC generator build-down, and DC generator compounding. Techniques and guidelines are presented in sufficient detail t... View full abstract»

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  • Transmission line computer-aided design and drafting

    Publication Year: 1989, Page(s):26 - 30
    Cited by:  Papers (3)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (815 KB)

    A power transmission line computer-aided design and drafting program is summarized. The program is a sophisticated, user-friendly software package developed for the IBM 286/386 desktop computers and compatibles. The package is designed to aid engineers, designers, and drafters in producing plans and profiles of overhead transmission lines. The interface approach is based on pull-down/pop-up menus,... View full abstract»

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  • Analysis and solutions for bulk system voltage instability

    Publication Year: 1989, Page(s):31 - 35
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (623 KB)

    The phenomenon of voltage instability and its effects are described in some detail. It is argued that controls that can steer a system away from voltage instability are feasible and badly needed. Among the control possibilities discussed are: load tap changers between the bulk and distribution systems, which play a key role in the voltage collapse process, sometimes contributing to collapse, somet... View full abstract»

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  • Rate impacts-a practical scoping model (electricity tariffs)

    Publication Year: 1989, Page(s):36 - 39
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (450 KB)

    A procedure is presented for evaluating the impact of various residential rate structures on electricity sales and load forecasts. The technique provides a method for easily evaluating the impact of alternative rate structures on the quantity of an electricity demand, while taking account of the entire block rate structure and associated elasticity impacts on forecast kilowatt-hour usage. The proc... View full abstract»

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  • Translation of large data bases for microcomputer-based application software: methodology and a case study

    Publication Year: 1989, Page(s):40 - 45
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (493 KB)

    The authors report on the recent application of a versatile database management system to the mainframe-resident transmission system planning program NUPLAN (Northeast Utilities Transmission Expansion Program), which has been updated and converted for microcomputer use. Included are the extensive uses of the dBASE III PLUS database management system for processing input data from large files and t... View full abstract»

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  • Dynamic thermal rating of critical lines-a study of real-time interface requirements

    Publication Year: 1989, Page(s):46 - 51
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (581 KB)

    Power system operators need the ability to assess network performance from a thermal capacity standpoint. However, static ratings do not provide the level of information needed and, in fact, can mislead operators. To address this problem, a study that resulted in the instrumentation of a 138000 V line with the necessary equipment to rate the line dynamically was initiated by Wisconsin Power and Li... View full abstract»

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Aims & Scope

Devoted to computer applications in the electric power field involving planning, design, construction, operation, maintenance and control of power systems. Articles cover energy management systems, transient network analysis, cable systems, economics, and contingency analysis.

Full Aims & Scope