Building a dynamic electro-mechanical model for the Pacific AC intertie using distributed synchrophasor measurements

摘要

In this paper, we present a novel algorithm for constructing simplified interarea models of large powernnetworks by using dynamic measurements available from phasor measurement units (PMUs) installed atnspecific points on the transmission line. Our example of study in this paper is a widely encountered realisticnsystem, namely the Pacific AC intertie, which closely resembles a star-connected three-area power system.nWe derive analytical results showing how the voltage, phase angle, and frequency oscillations at differentnbuses on the transfer path of this intertie can be used to estimate the essential parameters of the three-nmachine equivalent model of this three-area system. We illustrate the results with actual disturbance eventndata from the Western Electricity Coordinating Council. Copyright # 2011 John Wiley & Sons, Ltd.