Abstract
This chapter defines the time synchronisation requirements for IEC 61850 systems. This includes accuracy requirements for different applications and classes of data, the uses of time in the IEC 61850 model, and indicating the accuracy of time synchronisation. The chapter also discusses the commonly available global primary reference sources used for time synchronisation, the use of IEC 61588 Precision Time Protocol (PTP) as the preferred time synchronisation as the preferred methods, legacy time synchronisation methods that may be used in limited circumstances, and the considerations for successfully applying PTP over the network architectures described in Chap. 4. The chapter also covers time synchronisation redundancy to ensure that IEC 61850 systems remain available, some case studies showing practical implementations of time synchronisation in operating substations, and discusses performance testing of time synchronisation systems.
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References
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Hunt, R., Dalmeny, C., Geor, M. (2023). Time Synchronisation for IEC 61850 Systems. In: Bishop, P., Nair, NK.C. (eds) IEC 61850 Principles and Applications to Electric Power Systems. CIGRE Green Books(). Springer, Cham. https://doi.org/10.1007/978-3-031-24567-1_5
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