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IEEE Computer Applications in Power

Issue 1 • Date Jan. 1994

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Displaying Results 1 - 7 of 7
  • Migrating resource commitment from mainframe to PC

    Publication Year: 1994, Page(s):14 - 19
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (774 KB)

    A medium-term unit commitment program is critical to the power operation group of a typical power utility. For the Arizona Public Service Company (APS) this means: a 2-to-5 day study period; up to 40 generators; and up to 20 sales/purchases. The original resource commitment system (RES) was envisioned to run on the real time energy management system computer. For many reasons the package was bette... View full abstract»

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  • Power system applications for phasor measurement units

    Publication Year: 1994, Page(s):8 - 13
    Cited by:  Papers (38)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (573 KB)

    State-of-the-art technology now permits measurement and analysis of power system performance on a scale not previously possible. Synchronized sampling, derived from the GPS (Global Positioning System), and high accuracy sigma-delta analog-to-digital converters form the basis for a system that can measure the state of the power system at a given instant over any area. Samples are acquired 12 times ... View full abstract»

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  • Active DC filter for HVDC systems

    Publication Year: 1994, Page(s):40 - 44
    Cited by:  Papers (2)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (702 KB)

    In pursuit of higher performance and lower cost for harmonic filtering in high-voltage direct current (HVDC) power transmission systems, a prototype of an active DC filter was developed and installed on the DC line at the Lindome converter station of the KontiSkan 2 HVDC link between Sweden and Denmark at the end of 1991. This installation provides practical evidence that an active filter is possi... View full abstract»

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  • The dream and reality of automated wiring systems

    Publication Year: 1994, Page(s):20 - 23
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (487 KB)

    To remain competitive in today's business environment, companies must find ways to cut costs without sacrificing the quality of products or services. The Long Island Lighting Company (LILCO) has been able to do just that in the production of wiring diagrams, thanks to a unique PC based CAD software package called Substation/Switchgear Automated Wiring System (SAWS) from Wire Graphics, Inc. The sys... View full abstract»

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  • Monitoring power system response to UHP arc furnace operations

    Publication Year: 1994, Page(s):24 - 28
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (973 KB)

    Electric arc furnaces of the ultra-high-power (UHP) design range have ratings from 20 to over 100 MW. UHP are furnaces, with their large connected loads, are frequently the largest single power consumer in a given section of a power grid. Their operation, therefore, is of serious concern to the power utility. The refiring period at maximum power level is what has been identified as the area of mai... View full abstract»

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  • Demystifying induction motor behavior

    Publication Year: 1994, Page(s):29 - 33
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (602 KB)

    Induction motors are very simple devices, but, ever since they were introduced by Tesla, they have mystified many practicing engineers. The INSPEC interactive program that runs in Microsoft Windows on 386 or higher PCs, is designed to calculate accurate equivalent circuit models from induction motor standard specifications. It has a full graphical user interface (GUI), created using Microsoft's Vi... View full abstract»

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  • Modern user interface revolutionizes supervisory systems

    Publication Year: 1994, Page(s):34 - 39
    Cited by:  Papers (22)  |  Patents (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1154 KB)

    Workstation-based full-graphics technology has fundamentally changed the nature of computerized energy control systems. The proliferation of standards based workstations created an environment that enabled SCADA data to be opened up to an expanded user community within the corporation. Workstation technology has been essential to the emergence of distributed computer system architectures. The exis... View full abstract»

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