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IEEE Computer Applications in Power

Issue 3 • Date July 1996

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Displaying Results 1 - 9 of 9
  • Guest Editorial

    Publication Year: 1996
    Request permission for commercial reuse | PDF file iconPDF (319 KB)
    Freely Available from IEEE
  • Information network supports open access [power transmission communication]

    Publication Year: 1996, Page(s):12 - 19
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1304 KB)

    On March 29, 1995, the US Federal Energy Regulatory Commission (FERC) issued a notice of proposed rulemaking (NOPR) aimed at promoting wholesale competition through nondiscriminatory open transmission access. Industry working groups were formed to define the content of the transmission services information to be communicated over an electronic network and to define the requirements of the network ... View full abstract»

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  • Expose hidden failures to prevent cascading outages [in power systems]

    Publication Year: 1996, Page(s):20 - 23
    Cited by:  Papers (80)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (908 KB)

    Major blackouts are rare events, but their impact can be catastrophic. A study of significant disturbances reported by NERC in the period from 1984 through 1988 indicates that protective relays are involved in one way or another in 75 percent of major disturbances. A common scenario is that the relay has an undetected (hidden) defect that was exposed due to the conditions created by other disturba... View full abstract»

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  • Simulating transformer taps for remote cranking operations

    Publication Year: 1996, Page(s):24 - 29
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (696 KB)

    This article describes an attempt at simulating a remote cranking operation for the black start of two coal-fired drum-type power generation units at Northern States Power Company, USA. The simulation system uses power flow and generator reactive capability programs in an iterative process to determine the appropriate tap positions for the combustion turbine (CT) unit and auxiliary transformers, t... View full abstract»

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  • Location-centered mitigation of lightning-caused disturbances

    Publication Year: 1996, Page(s):36 - 40
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (864 KB)

    The authors describe a technique by which asset exposure locations and lightning-caused disturbances can be pinpointed by combining accurate power transmission line asset location with lightning timing and location View full abstract»

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  • Coordinating overcurrent protection devices

    Publication Year: 1996, Page(s):41 - 44
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1316 KB)

    Distribution, substation, and plant engineers can benefit from using an overcurrent protection program in commercial, industrial, and utility applications to aid in clearing temporary faults and isolating permanent faults. In the time it normally takes to check one coordination scheme manually, dozens of alternatives can be evaluated using a graphics-oriented program, because the engineer receives... View full abstract»

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  • System planning tools for the competitive market

    Publication Year: 1996, Page(s):50 - 55
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1384 KB)

    A restructuring of the electric power business in the United States is under way. The form of the restructuring will shift the industry focus from local, vertically integrated monopolies to regional, competitive, and unbundled corporate structures. The premise for change is that market imperfections occur under the regulated monopolistic structure, leading to inefficient use of the interconnected ... View full abstract»

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  • Client-server technology meets operational-planning challenges

    Publication Year: 1996, Page(s):45 - 49
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    Utilities must be able to develop IT tools fast enough to address today's emerging business needs, such as open transmission access, real-time pricing, etc. This article describes a client-server implementation launched at Tennessee Valley Authority (TVA) in 1994 to meet the utility's operational-planning needs. The article summarises some of the lessons learned and outlines future development pla... View full abstract»

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  • Demystifying power system oscillations

    Publication Year: 1996, Page(s):30 - 35
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (796 KB)

    Power systems are among the most complex dynamic systems created by man, and the insidious nature of oscillatory instability has mystified many practicing engineers. The author describes how, with modern computer programs, a thorough study of power system oscillatory stability is possible. The necessary complex mathematics are made transparent to the program user, and the emphasis of studies may b... View full abstract»

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