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Direct Evaluation of IEC 61850-9-2 Process Bus Network Performance

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6 Author(s)
Ingram, D.M.E. ; Sch. of Electr. Eng. & Comput. Sci., Queensland Univ. of Technol., Brisbane, QLD, Australia ; Steinhauser, F. ; Marinescu, C. ; Taylor, R.R.
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This letter presents a technique to assess the overall network performance of sampled value process buses based on IEC 61850-9-2 using measurements from a single location in the network. The method is based upon the use of Ethernet cards with externally synchronized time stamping, and characteristics of the process bus protocol. The application and utility of the method is demonstrated by measuring latency introduced by Ethernet switches. Network latency can be measured from a single set of captures, rather than comparing source and destination captures. Absolute latency measures will greatly assist the design testing, commissioning and maintenance of these critical data networks.

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Smart Grid, IEEE Transactions on  (Volume:3 ,  Issue: 4 )