A Medium-Voltage Cables Model for Power-Line Communication
ABSTRACT The aim of this paper is the development of a theoretical model of medium-voltage (MV) cables in the frequency range of 25-200 kHz, which can be easily implemented in the Simulink environment. Two transmission-line configurations: 1) line-ground and 2) line-line were considered. The model requires the knowledge of the transmission channel parameters in the frequency domain. Thus, a characterization of MV cables in the two transmission-line configurations by means of experimental measurements was performed on commonly used MV cables, RG7H1R, of different sections, 95 mm2 and 185 mm2 with an aluminum core and copper shielded. To validate the model, a comparison between the attenuation constant alpha measured and the one simulated for both configurations under study was carried out.
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ABSTRACT: A theoretical model for determining the signal strength of communication signals on three-phase power distribution lines is described. The purpose of this model is to aid in the design of distribution line carrier systems. Per-unit length impedance and admittance matrices are calculated for a particular transmission line geometry. The elements of these matrices are influenced by the skin effect for stranded conductor cables. Voltage and current are plotted versus distance from the source for all three phases and these plots are compared with measurements made by J.D. Suh (1988) and J.D. Suh et al. (1990). It is concluded that the proposed theoretical model is useful for predicting voltage and current profiles on distribution linesIEEE Transactions on Power Delivery 08/1991; · 1.52 Impact Factor
Conference Proceeding: High voltage power line constraints for high speed communications[show abstract] [hide abstract]
ABSTRACT: Paper presents technical limitations and constraints of high-voltage power-lines for high-speed digital PLC communications. Signal reflection and noise characteristics are recognized as major technical limitations for digital PLC system development. Results from a computer model and measurements are presented. Proposed solutions are at the end.Electrotechnical Conference, 2004. MELECON 2004. Proceedings of the 12th IEEE Mediterranean; 06/2004
Conference Proceeding: Power lines as high speed data transmission channels-modelling the physical limits[show abstract] [hide abstract]
ABSTRACT: With the cessation of the last monopolies in central Europe significant changes are taking place in the field of fixed network telecommunications. Currently alternative fast communication links over the so-called “last mile” are of major interest to establish real competition. The electrical power distribution grid could turn out to be an ideal candidate to cope with the existing standard communication links based on copper wiring. However, the power grid would have to carry data rates in the range from 2.10 Mbits/s. This paper thoroughly examines the physical properties of distribution grids for the intended telecommunication applications. Towards this aim the frequency range up to 20 MHz has been investigated. At the moment steps for identification and extraction of essential channel parameters towards a channel model are under way. Some first results are presentedSpread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on; 10/1998