Precise Time Dissemination and Applications Development on the Bonneville Power Administration System

K.E. Martin, J. Esztergalyos

Abstract:	The Bonneville Power Administration (BPA) uses IRIG-B transmitted over microwave as its primary system time dissemination. Problems with accuracy and reliability have led to ongoing research into better methods. BPA has also developed and deployed a unique fault locator which uses precise cinch synchronized by a pulse over microwave. It automatically transmits the data to a central computer for analysis. A proposed system could combine fault location timing and time dissemination into a Global Position System (GPS) timing receiver and close the verification hop through a muster station at the Dittmer Control Center. Such a system would have many advantages, including lower cost, higher reliability and wider industry support. Test results indicate GPS has sufficient accuracy and reliability for this and other current timing requirements including synchronous phase angle measurements. A phasor measurement system which provides phase angle has recently been tested with excellent results. Phase angle & a key parameter in power system control applications including dynamic braking, DC modulation, remedial action schemes) and system state estimation. Further research is required to determine the applications which can most effectively use real-time phase angle measurements and the best method to apply them.
Published in:	Proceedings of the 23th Annual Precise Time and Time Interval Systems and Applications Meeting December 3 - 5, 1991 Pasadena, California
Pages:	147 - 160
Cite this article:	Martin, K.E., Esztergalyos, J., "Precise Time Dissemination and Applications Development on the Bonneville Power Administration System," Proceedings of the 23th Annual Precise Time and Time Interval Systems and Applications Meeting, Pasadena, California, December 1991, pp. 147-160.
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