Abstract
With the development of electric power systems and their increase of complexity, basically due to the interconnection to other production centres, impose the necessity of introduction of new control system techniques. The efficiency of these control centres is only possible if data received from network arrives quickly and with accuracy. The basic task of a system operation is to get a reliable and accurate real time network model. In the past and even in the present, the real time network model is obtained by the use of system control and data acquisition (SCADA) and processing of the SCADA data via state estimator algorithms. Today's reality is different, intelligent electronic devices (IEDs), digital fault recorders (DFRs), phase measurement units (PMUs) and relays, collects an enormous amount of data that arrives to control centres through SCADA system. So, other ways to validate and utilize this data are needed.
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