Real-Time Analysis of Time-Critical Messages in IEC 61850 Electrical Substation Communication Systems

Héctor León, Carlos Montez, Odilson Valle and Francisco Vasques
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Héctor León: General Electric, Florianópolis 88036-400, SC, Brazil
Carlos Montez: Department of Automation and Systems, Federal University of Santa Catarina, Florianópolis 88040-900, SC, Brazil
Odilson Valle: Telecommunication Area, Federal Institute of Santa Catarina, São José 88103-310, SC, Brazil
Francisco Vasques: INESC-TEC, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal

Energies, 2019, vol. 12, issue 12, 1-21

Abstract: IEC 61850 is a standard for the design and operation of electrical Substation Automation Systems (SAS) that defines how data may be transferred among Intelligent Electronic Devices (IEDs). The defined data models can be mapped into application protocols, such as SV or GOOSE, which may run upon high speed Ethernet LANs bridged by IEEE 802.1Q compliant switches. The communication system must cope with the timing requirements associated to protective relaying strategies. Given the time constrained nature of SAS applications, a thorough analysis of its timing behavior is required. In this paper, we propose an analytical model for the timing assessment of SV and GOOSE message exchanges in an IEC 61850 process bus. The proposed model allows the communication timing assessment, by analyzing the response time of each message stream of the SAS. This feature is an advantage for the expansion of the SAS, as it allows the evaluation at design time of the maximum number of IEDs that can be supported by the underlying communication system. The results from the proposed analytical model were validated for a typical IEC 61850 communication scenario, both through simulation and through an experimental assessment with IEC 61850 compliant equipment.

Keywords: substation automation system; smart grid communication; IEC 61850; real-time; SV and GOOSE application protocols (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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