Test of a Phasor Measurement Unit Model in the System Fault Conditions

The reliability and stability of a power system is based on its ability and rapidity in tackling its fault conditions. One of the most highly responsive tools used in this regard is the phasor measurement unit (PMU). PMUs provide synchronized data of voltages and currents, availing actual information on the state of the electrical network, granting required system observability, simplifying thus the operation and planning processes. They collect every digitalized data samples and transmit them instantaneously to the controller to compare them with the predefined data of the phasors. As result, appropriate control actions can be taken based on fine-grained data from the network. This study tests the PMU model in Matlab/Simulink and compares its simulation results with the results provided by a PMU block existing in the R2022b Matlab library, for an electrical system during normal operation, symmetrical, and non-symmetrical fault conditions.