Automated PMU accuracy analysis based on TTCN-3 system architecture

The reliable, safe and continues delivery of energy to consumers is the main success indicator of power grid. New challenges for system appear such as integration of more Renewable Energy Sources (RES), deregulation of the electricity market, new network users and active participation of energy consumers. Power grids need, therefore, a proper system protection and control as well as measurements for monitoring ability. The devices, which can offer synchronized, precise measurements to enhance the system observability are Phasor Measurement Units (PMUs). For the practical application of these modern devices in the power grids, they have to be tested in accordance with applicable standards. In this paper, the automated testing procedure of PMU accuracy verification in accordance to IEEE standard has been proposed. The test bench scheme and developed testing system architecture are based on TTCN-3. The results of the two devices tests are given.