Smart substation IEC61588 time synchronization system and security evaluation

Xin, Huang; Wenmeng, Li; Yang, Song; Zhang, Daonong; Du, Qinghe

doi:10.1109/ispcs.2014.6948699

Cited by 3 publications

(1 citation statement)

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“…The smart grid communications architecture can be decomposed into three main subnetworks: (i) wide area network (WAN) serving as the core network, (ii) neighborhood area network (NAN) for connecting the advanced metering infrastructure, and (iii) home area network (HAN) used to connect smart home appliances and sensors [35]. Note that the smart grid could have been included in the previous subsection on industrial applications, however we make a distinct subsection on this topic since timing for emerging smart grids is a critical requirement and is the subject of several recent studies [35]- [44]. Table IV lists several smart grid functionalities and their synchronization requirements, ranging from 1 μs to 100 ms, similar to the requirements of several industrial applications described in the previous subsection.…”

Section: Smart Gridmentioning

confidence: 99%

A Survey of Clock Synchronization Over Packet-Switched Networks

Lévesque

Tipper

2016

IEEE Commun. Surv. Tutorials

114

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Abstract-Clock synchronization is a prerequisite for the realization of emerging applications in various domains such as industrial automation and the intelligent power grid. This paper surveys the standardized protocols and technologies for providing synchronization of devices connected by packet-switched networks. A review of synchronization impairments and the stateof-the-art mechanisms to improve the synchronization accuracy is then presented. Providing microsecond to sub-microsecond synchronization accuracy under the presence of asymmetric delays in a cost-effective manner is a challenging problem, and still an open issue in many application scenarios. Further, security is of significant importance for systems where timing is critical. The security threats and solutions to protect exchanged synchronization messages are also discussed.

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Section: Smart Gridmentioning

confidence: 99%