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Power Systems Conference, 2009. PSC '09.

Date 10-13 March 2009

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Displaying Results 1 - 25 of 33
  • Cover

    Publication Year: 2009, Page(s): c1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (392 KB)

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  • [Title page]

    Publication Year: 2009, Page(s): 1
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  • [Copyright notice]

    Publication Year: 2009, Page(s):1 - 3
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    Freely Available from IEEE
  • Table of contents

    Publication Year: 2009, Page(s):1 - 3
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  • Syncro-phasor based voltage and var management

    Publication Year: 2009, Page(s):1 - 7
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (434 KB) | HTML iconHTML

    This paper presents various programs that have an individual focus, while maintaining a degree of interdependence from the other programs. The increasing threat of the large-scale system disturbances makes use of wide-area measurement systems to monitor large grids. For example, for the widespread usage of PMU technology to optimally control the system voltage and VAR requirements, the state estim... View full abstract»

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  • Testing of phasor measurement units

    Publication Year: 2009, Page(s):1 - 5
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (895 KB) | HTML iconHTML

    Phasor Measurement Units (PMUs) are getting increasingly popular. Major incidents in the near past, such as the big blackouts in 2003 in the northeast of the USA and in Italy, have raised the interest in all means that support the observation of the condition of the electrical power network, assessing system stability, and predicting problems. PMUs are perceived to be valuable tools for this. The ... View full abstract»

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  • Design & implementation of an industrial facility islanding and load shed system

    Publication Year: 2009, Page(s):1 - 11
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (349 KB) | HTML iconHTML

    The availability of electricity supply in all areas of life has become a critical need. In the industrial arena, costs due to the loss of electrical power and resulting process interruption can usually be quantified into hard dollars. Many larger industrials, however, contain significant co-generation capability that produce both electricity and waste heat for steam production utilized in the plan... View full abstract»

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  • Phasor measurement units: Functionality and applications

    Publication Year: 2009, Page(s):1 - 12
    Cited by:  Papers (11)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1379 KB) | HTML iconHTML

    This paper has described a high-level plan to improve power system grid security. The primary intent is to protect the electrical interconnection from a widespread collapse. Wide area controls are meant to protect the grid as an entity. In some cases, the appropriate action would be islanding and blacking out a portion of the grid in order to prevent widespread collapse. New wide area systems will... View full abstract»

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  • Meeting NERC requirements for oscillography and disturbance monitoring by collecting data from relays

    Publication Year: 2009, Page(s):1 - 9
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1526 KB) | HTML iconHTML

    The North American Electric Reliability Corporation (NERC) and the region reliability councils have mandated electric utilities to monitor their power systems at critical locations throughout their system. The monitoring systems are to be phased into service by 2010. American Electric Power (AEP) and Tarigma Corporation with assistance from Schweitzer Engineering Laboratories, Inc. (SEL) have deve... View full abstract»

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  • An optimized architecture for IEC 61850 process bus

    Publication Year: 2009, Page(s):1 - 11
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1603 KB) | HTML iconHTML

    This paper presents a practical process bus architecture conforming to IEC 61850-9-2 that fits the task of protection and control of substations by drawing from the universal topology rules of substations. View full abstract»

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  • Modeling systems with distributed generators in IEC 61850

    Publication Year: 2009, Page(s):1 - 6
    Cited by:  Papers (12)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (898 KB) | HTML iconHTML

    Distributed generators are penetrating the electric power system at the sub-transmission, distribution and low voltage levels. Their integration with protection, automation and control systems based on the IEC 61850 standard requires the use of existing object models, as well as the new ones developed to meet the requirements of the distributed energy resources (DER) domain. Such modeling requires... View full abstract»

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  • IEC 61850 process bus solution addressing business needs of today's utilities

    Publication Year: 2009, Page(s):1 - 21
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1666 KB) | HTML iconHTML

    There are a number of important considerations that must be taken into account when deploying any new technology solution within a power substation. These include not only technical factors such as performance, security and reliability but also significant business considerations like manageability, safety, staff training issues and overall installation cost versus payback. Often the sole justific... View full abstract»

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  • Relay parameterization made easy with a universal XML interface

    Publication Year: 2009, Page(s):1 - 6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (934 KB) | HTML iconHTML

    Today each unique vendor of protection systems or major Protective Relay Manufactures has their own software for transmitting parameters and setting protective relays. This is almost always based on MicrosoftTM operating systems. It is in this element where the largest numbers of setting errors occur, this being the human element. Even with in the same manufacturing company different de... View full abstract»

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  • Detection of incipient faults in underground medium voltage cables

    Publication Year: 2009, Page(s):1 - 12
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (803 KB) | HTML iconHTML

    This paper presents an operational experience with incipient faults: it has been observed that 10 to 15% of cable faults are preceded by incipient faults. Practically all incipient faults become permanent faults in the period between a few seconds to few weeks. Incipient faults occurring in fast successions create considerable overvoltages and induce faults on other feeders. A method has been pres... View full abstract»

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  • Secure data communication for line differential relays

    Publication Year: 2009, Page(s):1 - 6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (874 KB) | HTML iconHTML

    By application of numerical differential protection devices over digital communication links it is possible to transfer, apart from the protection relevant data, additional binary information and measured values. Communication convertors adapt the telegrams of the devices to the communication medium. Apart from classical pilot wire links and optical fibres it is also possible to use modern communi... View full abstract»

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  • Tests of distance relay performance on stable and unstable power swings reported using simulated data of the August 14th 2003 system disturbance

    Publication Year: 2009, Page(s):1 - 21
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3055 KB) | HTML iconHTML

    The electric power system maintains a dynamic and delicate balance between generation and load in normal operatio condition. A disturbance, such as a sudden change of load, a power system fault, or a trip of a large generation unit, may break the balance, cause the oscillations among the generator rotor angles and force the generators to adjust to a new operating condition. The adjustment will not... View full abstract»

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  • Adaptive protection of transmission lines

    Publication Year: 2009, Page(s):1 - 14
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (696 KB) | HTML iconHTML

    Modern microprocessor based relays are designed to provide high speed protection under different power system conditions and configuration. Requirements for reduction in the duration of short circuit faults on transmission lines are based on significant system congestion and increased numbers of customers with loads sensitive to voltage variations. High-speed fault clearing for different faults on... View full abstract»

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  • Updated transmission line protection communications

    Publication Year: 2009, Page(s):1 - 8
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (999 KB) | HTML iconHTML

    The telecommunications revolution has increased the options and capabilities available for communications-based protection of transmission lines. To improve tripping speeds on long and short lines, protection engineers can select from a host of media, protocols, and logic schemes. The question to address is what communications scheme is best for which circumstances. This paper begins by establishi... View full abstract»

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  • Report on design, testing and commissioning of 100% stator ground fault protection at dominion's bath county pumped-storage station

    Publication Year: 2009, Page(s):1 - 13
    Cited by:  Patents (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1072 KB) | HTML iconHTML

    Cradled in Virginia's rugged Allegheny Mountains, the Bath County pumped storage station, which went into operation in 1985, is jointly owned by Dominion and the operating companies of the Allegheny Power System, and managed by Dominion generation. The facility, which includes six rotating machines, each operating as a synchronous generator or synchronous motor, quietly balances the power demands ... View full abstract»

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  • Comparison between high impedance and low impedance bus differential protection

    Publication Year: 2009, Page(s):1 - 16
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (647 KB) | HTML iconHTML

    High impedance bus differential relays are used on most of the busses in North America. The popularity can be explained by the good performance of this scheme in relation to CT saturation and the low cost, if used on a simple bus system. However with the introduction of numerical relays and their low CT burden as well as their ability of measuring several feeder currents, a low impedance bus diffe... View full abstract»

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  • Protection requirements for a large scale wind park

    Publication Year: 2009, Page(s):1 - 19
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (730 KB) | HTML iconHTML

    In the past wind power plants typically had a small power rating when compared to the strength of the connected electrical network and the behavior of the wind mills during faults in the network was considered non critical and wind power plants were simply pulled out of the system. Hence protection requirement of a wind mill was just restricted to simple current and voltage based measurement. This... View full abstract»

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  • Protection of distributed generation (DG) interconnection

    Publication Year: 2009, Page(s):1 - 15
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (814 KB) | HTML iconHTML

    Selection of the DG interconnection protective relay is based on several criteria such as power system characteristics, the dynamic response of the generator, the system grounding, the DG transformer connection, etc., as well as the protection policy of the utility and coordination requirements. The interconnection protection IED design can be summarized as follows: disconnection of DG plants when... View full abstract»

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  • Analysis of capacitive voltage transformer transients with wind farm integration

    Publication Year: 2009, Page(s):1 - 8
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1032 KB) | HTML iconHTML

    Wind energy has gained much attention with the development of conversion technologies, concerns on fossil fuel use and associated environmental impacts. As a result, an increasing number of large wind farms are coming into the power system at high voltage (HV) grid level. Voltage transformers (VT) are used for obtaining secondary voltages suitable for metering and protection devices in a wind farm... View full abstract»

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  • Effects of wide-area control on the protection and operation of distribution networks

    Publication Year: 2009, Page(s):1 - 10
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (521 KB) | HTML iconHTML

    This paper examines the use of wide-area automatic control systems in electric power distribution networks. Today only a small percentage of distribution feeders employ wide-area control strategies. However, this number is growing as distribution engineers and managers respond to concerns about system reliability. Distribution networks are growing in complexity in the face of a coming shortage of ... View full abstract»

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  • Distribution automation helps revitalize community

    Publication Year: 2009, Page(s):1 - 6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1295 KB) | HTML iconHTML

    Over the past ten years, the City of Danville has seen the region's core industries, such as tobacco and textiles, close down or move overseas. Understanding the need to develop new jobs in the region, the City of Danville and many other communities sought to draw high-tech and manufacturing companies to the area with a large available work force and pro-business politics. Recognizing the importan... View full abstract»

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