Abstract
In view of the current situation of the development of smart substation, this paper analyses the standing domain information sharing, information network transmission delay effects on substation protection system. Based on above, advances the information transmission time delay of the solution. This paper uses the accurate computing information packet switches reside within the delay ΔT and into the sampling value (SV) message, giving to protection device. Protection device dependent on local time benchmark, the use of MU inherent latency and link to reside the total delay ΔT reduction received multiple interval sampling data of the moment, on the basis of implementing protection control function.
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