Development of Wide Area Monitoring System Using GPS

Abstract This paper describes the development of a wide area monitoring system(WAMS) and on-line transient stability monitoring tools. The master system ofthe WAMS at the Control Center monitors the important system conditions transmitted from 8 local measurement units installed at major generating stations and substations. Each local unit can measure two 3-phase bus voltages and 3-phase currents offourteen feeders at the 7,680 Hz sampling rate, and measured data are transmitted to the master system 10 times per one second.

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