Abstract
Low Voltage (LV) electricity distribution grid operations can be improved through a combination of new smart metering systems’ capabilities based on real time Power Line Communications (PLC) and LV grid topology mapping. This paper presents two novel contributions. The first one is a new methodology developed for smart metering PLC network monitoring and analysis. It can be used to obtain relevant information from the grid, thus adding value to existing smart metering deployments and facilitating utility operational activities. A second contribution describes grid conditioning used to obtain LV feeder and phase identification of all connected smart electric meters. Real time availability of such information may help utilities with grid planning, fault location and a more accurate point of supply management.
Highlights
Smart metering is based on the ability to remotely access and control utility meters
There will be an assessment of two values for each PoweRline Intelligent Metering Evolution (PRIME) service node (SN): first, the maximum individual time in a state, and second, the maximum individual time adding total time even if the same state happens at different points of the monitoring period, and considering the topology dependencies as far as the base node (BN)
Nodes registered through level 2, or higher level switches, belong to the same line as the chain of switches and, as the PRIME network topology fully converges, the probability that a distant node registers through a switch from a different Low Voltage (LV) line tends to zero
Summary
Smart metering is based on the ability to remotely access and control utility meters. This analysis is crucial for different reasons including the operational information extracted from the results (e.g., SS connectivity, and LV line and phase identification), and other PLC network related aspects, such as the evaluation and comparison among implementations of the different solutions provided from different manufacturers delivering PRIME interoperable products, and the validation of the criteria used for field deployment options (injection at SS level [26], effect of the different LV configurations and elements [27], etc.). Another section describes the grid conditioning needed to take advantage of PLC based smart metering systems, in order to gather information on LV feeder and phase connectivity of smart meters
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