APPLICABILITY OF IEC 61850 FOR SCADA COMMUNICATION WITH CENTRALIZED PROTECTION AND CONTROL

This paper evaluates the applicability of IEC 61850 protocol for Supervisory Control And Data Acquisition (SCADA) system communication, with Centralized Protection and Control (CPC) device acting as the substation communication gateway over a public telecom network. Benefits from IEC 61850 modelling for SCADA engineering efficiency are evaluated, based on a namespace where all signals are published by a single centralized device. Based on connection monitoring, recommendations for data sets and buffering are given, as well as recommendations for managing the cyber security requirements. The engineering process compared to a traditional way was tens of hours faster and almost free of manual steps. Performance and quality of the public telecom network fulfilled the requirements from SCADA point of view. An engineering approach to consider SCADA requirements already in the CPC application configuration is also one key result, because then the same configuration can efficiently be used for both purposes.