Possible enhancements of a seamless redundancy protocol and its benefits for open power system applications

IEC 62439-3 is a standard that specifies bumpless redundancy especially in the case of multiple communication failures. Whilst designed specifically for power system applications connected in ring topologies the specification bears an import beyond that of its initial topology domain that of ring based communication structures. As an example, the smart grid initiative taking place in the power system community will lead power system and other applications share common communication medium and devices. This means a scope of operation that covers the aspect of network load and the efficient coupling of rings. In this paper, we present the main concepts of both profiles and discuss their application in an open environment.