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    Development of a lifetime model for VRLA batteries used in wind turbine generators

    Access Status
    Fulltext not available
    Authors
    Wang, X.
    Choi, San Shing
    Zhang, T.
    Tseng, K.
    Date
    2011
    Type
    Conference Paper
    
    Metadata
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    Citation
    Wang, X. and Choi, S.S. and Zhang, T. and Tseng, K. 2011. Development of a lifetime model for VRLA batteries used in wind turbine generators.
    Source Title
    17th Power Systems Computation Conference, PSCC 2011
    ISBN
    9789175012575
    School
    School of Electrical Engineering, Computing and Mathematical Science (EECMS)
    URI
    http://hdl.handle.net/20.500.11937/65784
    Collection
    • Curtin Research Publications
    Abstract

    An approach to predict the remaining lifetime of lead-acid battery is described. The battery is used to provide back-up power to keep essential devices within wind turbine generators operational under emergency conditions. The approach is developed from a circuit model of the battery. From the results of laboratory tests, changes in the model parametric values due to ambient temperature variations, battery aging effects as well as discharge current level have been quantified. Through a developed computational method, the terminal voltage and state of charge of the battery at any other discharging conditions can then be calculated. The discharge profile allows one to predict the remaining lifetime of the battery. The predicted results appear to agree most satisfactorily with that obtained from laboratory measurements.

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