A Software-Defined Networking Model for Smart Transformers with ISO/IEC/IEEE 21451 Sensors

The IEC 61850-advanced smart transformer shows an improved performance in monitoring, controlling, and protecting the devices and equipment in smart substation. However, the heterogeneity, feasibility and network control problems have limited smart transformers in network performance. To address these issues, a software-defined networking model is proposed using ISO/IEC/IEEE 21451 networks. The IEC-61850 based network controller is designed as a new kind of intelligent electrical device (IED). The proposed data model and information model contributes to the network awareness ability and facilitates access of smart sensors from transformers to communication networks. The performance evaluation result shows an improved efficiency.