Engineering Minor Project: Modeling of Indoor power line for Substation monitoring using Broadband over power line Communications
The operational and commercial demands of electrical utilities require a high performance data communication network that supports both existing functionalities and future operational requirements. A solution to this is the use of Broadband technologies. The application of Broadband technology allows information related to the condition and performance of the primary plant, such as circuit breakers and transformers to be released from the closed substation information system.
One of the broadband technologies that have found a renewed interest is Broadband over power line (BPL). Since BPL technology appears to be more mature for the indoor home-networking scenario than for the outside broadband access one, focus here is on the modeling of the indoor power line channel, in particular on the transfer function between outlets. In this approach, the power line is approximated as a two wire transmission line and the transfer characteristics are derived based on the scattering matrix method. Finally, the position of attenuation notches in the frequency domain is found out from the plot of transfer function obtained using MATLAB programming.