A Matlab and PowerFactory-based WAMS Simulator

Wide-area monitoring systems (WAMS) are spread in many power systems around the world, which demonstrate their significance and potential for power system operators. Thus, this paper emphasizes the use of synchronized-measurements-driven applications in power systems. To this end, two Matlab-embedded applications are developed using the graphical user interface (GUI) environment of Matlab. The former provides synchrophasor estimates that are processed and stored by means of a phasor estimation algorithm and a database, respectively; meanwhile the latter consists of a power system modal monitor application that is able to capture the modal information corresponding to low frequency oscillations (LFOs) in power systems. Also, the DIgSILENT PowerFactory environment is employed for running EMT simulations, whose results provide instantaneous signals to the phasor estimation stage in Matlab. Finally, results exhibit a WAMS simulator dealing with a LFO captured by PMUs, showing the performance of three traditional technique for identifyina electromechanical modes in power systems.