This paper focuses on computing and interpreting the significance of the observability Jacobian singularities. Previous efforts have focused on developing an observability index and determining the effects of model/measurement changes to the observability formulation. Using this index, the singularities of the Jacobian are extracted, and preliminary results indicate that there is a duality between the loss of stability (whether it be phase or voltage stability), and the loss of observability. Thus, providing a single dual-use metric capable of forecasting both stability and observability characteristics of a system. The results are illustrated using a sample 3-bus system.


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    Title :

    Investigating singularities of the observability Jacobian for nonlinear power systems


    Contributors:
    Dafis, C.J. (author) / Nwankpa, C.O. (author)


    Publication date :

    2005-01-01


    Size :

    964867 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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