PARAMETER ESTIMATION OF POWER SYSTEM OSCILLATIONS BASED ON PHASOR MEASUREMENTS

In recent years, there has been an increasing interest in monitoring and analyzing dynamic performances of power systems, such as observation of power system oscillations and evaluation of machine parameters. Authors have placed phasor measurement units (PMU) connected to 100V outlets in some universities in Japan and been researching into oscillation characteristics in power systems. The purpose of this paper is to propose methods for processing actual data so as to detect power system oscillations under a steady state operating conditions. Moreover, eigenvalues of power system oscillations occurred in Japan western 60Hz system are estimated.