Hierarchical state estimation using a fast rectangular-coordinate method

Shinichi Iwamoto, Masanori Kusano, V. H. Quintana

    Research output: Contribution to journalArticle

    32 Citations (Scopus)

    Abstract

    A hierarchical computing scheme is developed by carefully considering mismatches arising from the system decomposition. The method makes use of an extension of a fast second-order load-flow method that allows a fixed Jacobian matrix to be used in the hierarchical algorithm. In the problem formulation the power network is decomposed into two or more subsystems; the interaction among them is taken into account through the tie-line bus voltages. The hierarchical structure of the method consists of two levels: the upper level, where the optimal tie-line bus voltages are evaluated; and the lower level, where the optimal states of each subsystem are determined by minimizing a cost function that involves the entire system. Three test cases using the method are reported here; the test results are compared with those obtained by another hierarchical power system state estimation method.

    Original languageEnglish
    Pages (from-to)870-880
    Number of pages11
    JournalIEEE Transactions on Power Systems
    Volume4
    Issue number3
    DOIs
    Publication statusPublished - 1989 Aug

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    State estimation
    Jacobian matrices
    Electric potential
    Cost functions
    Decomposition

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

    Cite this

    Hierarchical state estimation using a fast rectangular-coordinate method. / Iwamoto, Shinichi; Kusano, Masanori; Quintana, V. H.

    In: IEEE Transactions on Power Systems, Vol. 4, No. 3, 08.1989, p. 870-880.

    Research output: Contribution to journalArticle

    Iwamoto, Shinichi ; Kusano, Masanori ; Quintana, V. H. / Hierarchical state estimation using a fast rectangular-coordinate method. In: IEEE Transactions on Power Systems. 1989 ; Vol. 4, No. 3. pp. 870-880.
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