A Novel Approach to Utilize PLC to Detect Corroded and Eroded Segments of Power Transmission Lines

    Authors

    R. J. Hamidi; S. H. Hosseinian; S. H. H. Sadeghi;Z. H. Qu

    Comments

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    Abbreviated Journal Title

    IEEE Trans. Power Deliv.

    Keywords

    Conductor aging; corrosion; erosion; nondestructive testing (NDT); power-line carrier (PLC); ACSR CONDUCTORS; Engineering, Electrical & Electronic

    Abstract

    A great number of existing power transmission lines have aged throughout the world. A considerable proportion of them are located in the environments that exacerbate their corrosion and erosion process. In-time detection of defects necessitates the use of nondestructive testing (NDT) techniques. Scanning the lines with robots and helicopters are the methods in use. In this paper, we propose a new NDT technique that uses the elements of power-line carriers, generally for information communication purposes, to detect the possibly corroded and eroded segments of each phase along a transmission line. The proposed NDT technique is based on the backward-wave propagation produced by a change in the characteristic impedance of a power transmission line, resulting from corrosion and erosion. To demonstrate the viability of the proposed approach, "EMTPWorks" is used to perform simulations. It is shown that the proposed technique can locate the surface defects and estimate the severity of them in transmission line conductors.

    Journal Title

    Ieee Transactions on Power Delivery

    Volume

    30

    Issue/Number

    2

    Publication Date

    1-1-2015

    Document Type

    Article

    Language

    English

    First Page

    746

    Last Page

    754

    WOS Identifier

    WOS:000351744400026

    ISSN

    0885-8977

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