In this paper the approach of implementing the phasor measurement units (PMU) into the state estimation method in order to improve the power system monitoring at the distribution level will be presented. The possibility of using accurate synchronized measurement data for the simulation to enhance the calculation of the power system state will be presented. The simulation will be performed on an example network with dispersed generation (DG) and the results of the approach will be shown and discussed

The number of phasor measurement unit installation is growing, especially in Europe since a few years. The collected experience of installation requirements and operation conditions as well as their behavior provides much important information about the possible usage of these measurement devices in real power system applications already. Generally, the phasor measurement technology is used to montoring the high voltage level of the power system, especially transmission system already and/or sometimes distribution system as well. This paper describes the investigations made inside of the industrial network to provide the information about possible contribution of the PMUs in such power system operating area

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