Digital transmission performance of carrier channels on distribution power line networks

摘要

The analysis of the transmitting features of wire-to-ground and wire-to-wire carrier channels on power distribution networks is performed both in the frequency- and in the time-domain. A new formulation of the lossy ground return parameters is considered, which applies in a wide frequency-range and in case of poorly conductive soil. The sensitivity of the frequency-spectra and longitudinal profiles of the transmitted voltages to the distribution system configuration, load termination and ground resistivity is investigated. The eye-diagram approach is used in order to ascertain the transmission quality of carrier channels on tree- and mesh-type networks, in case of high capacity digital signals.