Circuital and modal characterization of the power-line network in the PLC band

Antonio Pérez, Albert Miquel Sánchez, Joan Ramo Regué, Miquel Ribó, Ricard Aquilué, Pablo Rodríguez-Cepeda, Francisco Javier Pajares

    Research output: Indexed journal article Articlepeer-review

    24 Citations (Scopus)


    With present day measurement techniques, it is very difficult to accurately model the power- line network (PLN), as seen from its power-line terminals, both in terms of impedance and noise. In this paper, a new circuital model (that considers line-ground and neutral-ground signals) and a new modal model (that considers common and the differential mode signals) for characterizing the low voltage PLN are presented. These models, which treat impedance and noise in a unified way, are composed by a three-impedance pi-network and two voltage sources. These models, which are complete and rigorous, are very interesting to desing PLC modems matched to the PLN for maximal power transfer, to compute the energy conversion between common mode and differential mode produced by asymmetries in the PLN, and to know the levels of differential mode noise that will affect a PLC receiver. These models have been experimentally validated.

    Original languageEnglish
    Pages (from-to)1182-1189
    Number of pages8
    JournalIEEE Transactions on Power Delivery
    Issue number3
    Publication statusPublished - 2009


    • Common mode
    • Differential mode
    • Electromagnetic interference
    • Equivalent circuit
    • Impedance
    • Modal conversion
    • Noise
    • Power-line communications (PLC)
    • Power-line network (PLN)


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