Development of Dynamic Estimators for Islanding Detection of Inverter-Based DG

    Authors

    M. Al Hosani; Z. H. Qu;H. H. Zeineldin

    Comments

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    Abbreviated Journal Title

    IEEE Trans. Power Deliv.

    Keywords

    Distributed generation (DG); dynamic estimator; islanding detection; methods (IDMs); nondetection zone (NDZ); quality factor and transient; response; NONDETECTION ZONES; DISTRIBUTED GENERATION; SHIFT; Engineering, Electrical & Electronic

    Abstract

    In this paper, a new islanding detectionmethod (IDM) is proposed to dynamically estimate islanding occurrence. The proposed dynamic estimators estimate amplitudes and phase angles of the current injected by the grid at the point of common coupling with the distributed generation (DG) in addition to the DG's bus voltage. A distributed two-level algorithm is proposed to detect an islanding condition for single and multi-DG configurations. Analytical design and transient analysis are carried out for the islanding detection problem to determine the nondetection zone (NDZ) of the proposed islanding detection algorithm. A local low-frequency meshed communication network is sufficient to achieve distributed islanding detection capability for a general multi-DG network with negligible NDZ. It is shown through simulations that the proposed IDM can successfully distinguish an islanding condition from other disturbances that may occur in power system networks.

    Journal Title

    Ieee Transactions on Power Delivery

    Volume

    30

    Issue/Number

    1

    Publication Date

    1-1-2015

    Document Type

    Article

    Language

    English

    First Page

    428

    Last Page

    436

    WOS Identifier

    WOS:000348375100049

    ISSN

    0885-8977

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