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Power and Energy Magazine, IEEE

Issue 5 • Date September-October 2008

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Displaying Results 1 - 16 of 16
  • Front cover - IEEE Power and Energy Magazine

    Publication Year: 2008 , Page(s): C1
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  • Table of contents

    Publication Year: 2008 , Page(s): 1 - 2
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  • WAM(s)! global views from its pioneers [From the Editor]

    Publication Year: 2008 , Page(s): 4 - 6
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  • Share your thoughts [Letters to the Editor]

    Publication Year: 2008 , Page(s): 8 - 22
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  • Broadening our reach

    Publication Year: 2008 , Page(s): 14 - 19
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  • System of choice

    Publication Year: 2008 , Page(s): 20 - 22
    Cited by:  Papers (3)
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  • Phasing in the Technology

    Publication Year: 2008 , Page(s): 24 - 33
    Cited by:  Papers (23)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2996 KB) |  | HTML iconHTML  

    This paper discusses the current state-of-the-art of phasor measurement devices and systems for wide-area monitoring, particularly in North America. View full abstract»

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  • System-wide Protection

    Publication Year: 2008 , Page(s): 34 - 42
    Cited by:  Papers (11)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1154 KB) |  | HTML iconHTML  

    By its very definition, as applied to power system protection, wide-area measurement systems (WAMSs) are a synergistic combination of relays, measuring instruments, control equipment, automation equipment, monitoring equipment, and communication employed to encompass extensive system elements as opposed to the more traditional view of individual equipment or point-to-point protection. The increasing world-wide application of digital devices and high-speed wideband communication and global positioning systems (GPSs) plus the growing acceptance of adaptive relay protection philosophy and practice have dramatically altered the fundamental role of power-system protection. View full abstract»

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  • Gaining a Wider Perspective

    Publication Year: 2008 , Page(s): 43 - 51
    Cited by:  Papers (16)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (914 KB) |  | HTML iconHTML  

    The recent world-wide rash of power systems blackouts has provided an added impetus to wide-scale deployment of phasor measurement units (PMUs). Initial applications of PMUs in the late 1980s and 1990s were isolated due to the limited infrastructure availability and lack of computational support for extensive processing of the networked information. Today, networks of hundreds of PMUs are in place and more are planned.The recognition that networks of PMUs can provide greater power system reliability is based on their ability to give direct access to the state of the power system at any given instant. View full abstract»

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  • The Wide World of Wide-area Measurement

    Publication Year: 2008 , Page(s): 52 - 65
    Cited by:  Papers (67)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (7680 KB) |  | HTML iconHTML  

    The interest in phasor measurement technology has reached a peak in recent years, as the need for the best estimate of the power system's state is recognized to be a crucial element in improving its performance and its resilience in the face of catastrophic failures. In most countries installing the phasor measurement units (PMUs) and getting to know the PMU system behavior through continuous observations of system events has been the first step. All installations are reaching for a hierarchical wide-area measurement system (WAMS ) so that the measurements obtained from various substations on the system can be collected at central locations from which various monitoring, protection, and control applications can be developed. In this article, experts from several countries summarize their WAMS -related activities in some detail. The contributions here provide an account of the most advanced stages in WAMS development in major world economies. View full abstract»

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  • 25 Hz at Bethlehem Steel

    Publication Year: 2008 , Page(s): 66 - 78
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (5621 KB) |  | HTML iconHTML  

    The history articles in the January/February and March/April 2008 issues of IEEE Power & Energy Magazine described the establishment of a 25-Hz alternating current (ac) system for electric power distribution in the Niagara Falls, New York, region during the 1890s. The choice of this low frequency was related to the use of large ac generators operating at slow speeds as well as the use of slow speed rotary converters to provide direct current (dc) power for then existing distribution networks in downtown Buffalo. Similarly, the use of 25-Hz power became standard in steel mills during the early 20th century as a result of the extensive use of large, slow-speed gas engines to drive alternators. View full abstract»

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  • 2008 T&D expo

    Publication Year: 2008 , Page(s): 80 - 82
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  • History Lesson [review of The Story of the L Street Power Station, 1898-2006 (Cooke, G.G.; 2007)] [Book review]

    Publication Year: 2008 , Page(s): 83
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  • 2009 IEEE PES Power Systems Conference & Exposition

    Publication Year: 2008 , Page(s): 84
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  • Calendar

    Publication Year: 2008 , Page(s): 85
    Cited by:  Papers (1)
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  • In my view: phasor value

    Publication Year: 2008 , Page(s): 88 - 86
    Cited by:  Papers (1)
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Aims & Scope

IEEE Power & Energy Magazine is a bimonthly magazine dedicated to disseminating information on all matters of interest to electric power engineers and other professionals involved in the electric power industry.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Melvin I. Olken
molken@ieee.org