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Transient stability of a multi-machine system based on synchronised PMU's

This paper presents an approach to develop power system transient stability assessment platform using equal area criterion for a multi-machine network based on multiple synchronized phasor measurement units (PMUs) and generator parameters. The Phasor measurement units used in this study have been developed in general hardware computers running on Linux operating system. A widespread open source software implementation of the Precision Time Protocol Daemon (PTPd) has been used to synchronise the phasor measurement units. The output data gathered from synchronised phasor measurement units is used offline for state estimation of the system and hence the estimated data was used for transient stability analysis by means of equal area criterion. An experimental setup has been built to evaluate the performance achievable with the proposed synchronisation solution of phasor measurement units for transient stability analysis of a multi-machine system.