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Power and Energy Magazine, IEEE

Issue 5 • Date Sept.-Oct. 2012

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Displaying Results 1 - 16 of 16
  • Front Cover

    Page(s): C1
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  • Table of Contents

    Page(s): 1
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  • Society Listing

    Page(s): 2
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  • Streams of Data: Automating Knowledge and Information [From the Editor]

    Page(s): 4 - 6
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  • Strategic Goals: An Update on Long-Range Planning [Leader's Corner]

    Page(s): 8 - 12
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  • Data Analytics: Creating Information and Knowledge [Guest Editorial]

    Page(s): 14 - 23
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  • Grid of the Future Symposium

    Page(s): 22
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  • The Situation Room: Control Center Analytics for Enhanced Situational Awareness

    Page(s): 24 - 39
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (7510 KB) |  | HTML iconHTML  

    The modern power grid is one of the most complex engineering machines in existence. Its millions of components comprise the entire electricity supply chain, from point of generation to the end consumer. Each of these pieces must work together, reliably, 24 hours a day, seven days a week, to power our homes and businesses. In 2001, the U.S. National Academy of Engineering voted to recognize the grid as the supreme engineering achievement of the 20th century. Making matters more complex is the reality that grid conditions are continually changing every second, every minute, and every hour of the day. Changes in demand for electricity necessitate instantaneous changes in electricity production; consequently, voltages, currents, and power flows are dynamically changing at all times across the electricity supply chain. View full abstract»

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  • Operating in the Fog: Security Management Under Uncertainty

    Page(s): 40 - 49
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2833 KB) |  | HTML iconHTML  

    Over the last ten years, we have heard so often in conferences, seminars, and workshops that the power system will soon be operated very near to its limits that this statement has become a clich&eacute;. Unfortunately, it is no longer possible to comply with the classical preventive N-1 security standards during all of the hours in a year. The system is indeed no longer able to survive all single faults without postfault actions. More and more corrective (i.e., postfault) actions are defined and prepared by operators, and the clich&eacute; is now a reality, as a matter of fact. To be more precise, it is no longer possible to maintain the N-1 security of the system at all moments by using only preventive actions, and the number of hours during which the system requires corrective actions to be secure is increasing. More and more, new sp<?Pub Caret?>ecial protection schemes (SPSs) are deployed to implement some of these corrective actions automatically. Devices such as phase-shifting transformers (PSTs) and static var compensators (SVCs) are added in the system to increase its controllability. As a result, the system becomes more and more complex. View full abstract»

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  • Metrics for Success: Performance Metrics for Power System State Estimators and Measurement Designs

    Page(s): 50 - 57
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1207 KB) |  | HTML iconHTML  

    Power system state estimators (ses) have come a long way since the introduction of the concept nearly four decades ago by Fred Schweppe. Over the years, the concept's initial formulation, implementation techniques, computational requirements, data manipulation and storage capabilities, and measurement types have changed significantly. Today, SEs are instrumental in facilitating the security and reliability of power system operation and play an important role in the management of power markets where transactions have to be carefully evaluated for feasibility and determination of real-time prices. One of the most recent developments in SEs has been the availability of synchronized phasor measurements and their introduction into the state estimation process. Synchrophasor-assisted state estimation (SPASE) is changing the way we view and operate the grid. As such, the ability to monitor and maintain SE performance within known performance standards (metrics) is a new practice. Unlike deterministic applications such as power fl ow, the state estimation solution is not deterministic and depends on the statistical characteristics of the measurements as well as the level of certainty of the assumed network model. View full abstract»

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  • Measures of Value: Data Analytics for Automated Fault Analysis

    Page(s): 58 - 69
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (4480 KB) |  | HTML iconHTML  

    The power industry is experiencing an enormous expansion of computer and communication devices in substations. As a result, a massive amount of measurement data is being continuously collected, communicated, and processed. This is partly due to the need for much better monitoring capability as power system loading and complexity of operation have increased. The installation of a large number of intelligent electronic devices (IEDs) to accomplish the monitoring task has created new challenges, such as cyber and physical security, time-synchronized data storage, configuration management, and efficient visualization. Automated data analytics solutions are the key to efficient use of IED recordings. This automated process includes conversion of measurements to data, processing data to obtain information, and extraction of cause-and-effect knowledge. This article provides real-life implementation examples of data analytics developed to handle measurements from digital fault recorders (DFRs) and digital protective relays (DPRs). The discussion addresses the implementation challenges and business benefits of such solutions. View full abstract»

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  • One Step Ahead: Short-Term Wind Power Forecasting and Intelligent Predictive Control Based on Data Analytics

    Page(s): 70 - 78
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    The intelligent integration of wind power into the existing electricity supply system will be an important factor in the future energy supply in many countries. Wind power generation has characteristics that differ from those of conventional power generation. It is weather dependent in that it relies on wind availability. With the increasing amount of intermittent wind power generation, power systems encounter more and more short-term, unpredicted power variations. In the power system, supply and demand must be equal at all times. Thus, as levels of wind penetration into the electricity system increase, new methods of balancing supply and demand are necessary. View full abstract»

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  • In the Berkshires, Part 2: Stanley??s Early Work Expanded [History]

    Page(s): 80 - 88
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3716 KB) |  | HTML iconHTML  

    Our examination of significant developments in the introduction and expansion of electric power in southern Berkshire County, Massachusetts, began in the July/August 2012 issue of this magazine. We now continue that discussion with an account of further important advances leading to the comprehensive electrification of all of western Massachusetts. View full abstract»

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  • Innovative Smart Grid Technologies Conference

    Page(s): 89
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  • PES Meetings: For More Information, www.ieee.org/power [Calendar]

    Page(s): 93
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  • Data Analytics: The Architectural Perspective [In My View]

    Page(s): 96 - 92
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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