Digital substation time synchronization performance detection method and device thereof

Abstract

The invention provides a digital substation time synchronization performance detection method and device thereof. The method comprises inter-station time synchronization performance detection and intra-station time synchronization performance detection, wherein the inter-station time synchronization performance detection comprises time accuracy detection, time reliability detection and time security detection, and the intra-station time synchronization performance detection comprises direct connection time synchronization performance detection, time synchronization performance detection through a switch, and the network storm resistance detection. The technical scheme for detecting a full set of PTP timing systems in running provided by the invention integrates a digital substation GOOSE network, an SV network and a PTP network into one, so that the actual engineering guiding significance of the detection result is improved. The technical scheme provided by the invention can capture a PTP synchronization status in real time, the synchronization performances reflected under different synchronization modes meet the regulation of the IEEE 1588 standard, and the detection precision is higher than the 1 microsecond highest time synchronization precision of the digital substation.

Description

technical field [0001] The invention relates to the field of power system time synchronization, in particular to a digital substation time synchronization performance detection method and a device thereof. Background technique [0002] Based on the IEC61850 communication specification, a digital substation constructed by intelligent primary equipment (electronic transformers, intelligent switches, etc.) and networked secondary equipment layers (process layer, interval layer, station control layer) is a A modern substation that can realize information sharing and interoperability among intelligent electrical devices in the substation. [0003] A digital substation is a substation that uses IEC61850 for modeling and communication. The characteristics of a digital substation are reflected in the digitization of process-level equipment, the networking of information in the entire station, and the realization of intelligent switchgear. [0004] The detected signal circuit and th...

AI Technical Summary

Problems solved by technology

[0011] The disadvantages of the prior art are: for the inter-station time synchronization performance test, the existing test method fails to systematically evaluate the synchronization performance between intelligent stations; for the intra-station time synchronization performance test, the existing test does not involve The performance test under "three networks in one" cannot systematically reflect the adaptation of the 1588 clock in the intelligent station network

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