Identification of current leakage in distribution networks based on automated meter reading and control system (AMR)
DOI:
https://doi.org/10.14529/power180206Keywords:
distribution electric network, leakage of currents, identification methodAbstract
An electric distribution network (EDN), functioning during the implementation of an AMR system is considered. It is assumed that the EDN operates in an asymmetric mode and is subject to the actions of random external factors. The latter includes, among others, the leakage currents, including unauthorized power outages in the network. An increase in the frequency of these disturbances leads to significant energy losses. The task to identify the leakage current in a three-phase network is set using the AMR data obtained from customer electricity meters. A solution method is suggested, it is based on mathematical modeling of the disturbed and desired conditions of EDN. At the same time, the actual and potentially possible voltage increments are identified at the inter-customer sites of the three-phase network which are caused by current leakage. The mathematics, describing the functional connections between specified voltage increments and network parameters that are used to localize the current leakage coordinates has been obtained. The computational scheme of the proposed method is aimed to develop the algorithmic and special software for the subsystem of diagnostics of EDN in the structure of AMR.
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