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The IEC 61850 standard is being largely used in the Smart Grid (SG) contextmainly due to its ability to address communication, interoperability andmigration issues. IEC 61850 currently aims at internal substationcommunication. Nevertheless, there is a demand to generalize its use fordistributed SG systems like Home Energy Management Systems (HEMS) and AdvancedMonitoring Infrastructure (AMI) Communication which potentially involvesdistributed substations or distributed SG components. IEC 61850- based systemsrequire constrained timing requirements for communication and the commonapproach is to allocate static link bandwidth resources leading in some casesto over dimensioning. This paper presents the Substation CognitiveCommunication Resource Management (IC2RM), that aims the management ofbandwidth allocation for IEC messages using a cognitive approach for itsprovisioning and the SDN/OpenFlow for its deployment. By dynamically deployingbandwidth for IEC messages, IC2RM optimizes links between SG substations andsystems and potentially reduces the operational costs (OPEX).

Managing IEC 61850 Message Exchange for SDN-Controlled Cognitive Communication Resource Allocation in the Smart Grid