Standard-based secondary substation automation unit — the ICT perspective

To improve automation level at LV network in a cost-effective way, a “secondary substation automation unit” solution has been developed. Its main idea is to integrate smart metering data and MV/LV grid measurement, using them to realize LV network management functions at secondary substation. This automation unit can be implemented in an open and standard-based manner. A proof-of-concept prototype system has been implemented, and it achieves LV network monitoring in near real-time. A second release of this automation unit extends it by adding a new set of features for Demand-Response applications. This paper focuses on the ICT perspective, explain how this secondary substation automation unit have been implemented in the first and the second releases, and how IEC 61850 and CIM standards have been used in its design and implementation.