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    Reactor Solutions for Voltage Control of SWER Systems

    137017_20122_187.pdf (205.4Kb)
    Access Status
    Open access
    Authors
    Mayer, J.
    Hosseinzadeh, N.
    Wolfs, Peter
    Date
    2006
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Mayer, J. and Hosseinzadeh, N. and Wolfs, Peter. 2006. Reactor Solutions for Voltage Control of SWER Systems, in Kalam, A. (ed), Australasian Universities Power Engineering Conference AUPEC 2006, Dec 10 2006. Melbourne Victoria: Victoria University.
    Source Title
    Australasian Universities Power Engineering Conference
    Source Conference
    Australasian Universities Power Engineering Conference AUPEC 2006
    ISBN
    9781862726697
    Faculty
    Department of Electrical and Computer Engineering
    School of Engineering
    Faculty of Science and Engineering
    URI
    http://hdl.handle.net/20.500.11937/42508
    Collection
    • Curtin Research Publications
    Abstract

    Ergon Energy operates tens of thousands of kilometers of Single Wire Earth Return (SWER) distribution feeders in remote parts of Queensland to deliver electrical energy to small customer loads, scattered sparsely over vast areas. Ergon Energy has identified voltage regulation as one of the key issues being faced in this area, as loads continue to grow in rural distribution networks. These voltage regulation issues cause capacity limitations on the SWER feeders. Voltage drop during peak load periods is one issue, but high voltages during low load periods caused by the Ferranti effect is another key factor on long SWER feeders. Currently, Ergon uses fixed shunt reactors to control line overvoltages during low load periods, but these reactors add to the line load during peak load conditions. At AUPEC 2005, Central Queensland University presented a thyristor controlled reactor option as a potential solution to this problem. This paper follows on from this and presents two lower technology solutions, namely switched reactors and saturable reactors. Both options aim to reduce the steady state voltage range between peak load and low load, thus freeing up additional capacity on the SWER feeder for growing load. This paper presents the development of both options and comments on the suitability of the options to perform to the required specifications. PSCAD/EMTDCis used to model the problem.

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