The research on reliability and real-time of the scheme of process layer GOOSE network in smart substation based on artificial cobweb topology structure

According to GOOSE defined in the IEC61850 in the smart substation, it explicitly stipulates the requirements for the transmission in reliability and real-time of the process layer network scheme. The cobweb structure is an artificial communication network topology based on cobweb as it occurs in nature. On the basis of the cobweb in the nature, a novel cobweb topology structure, based on process layer GOOSE network in smart substation is proposed in this paper. With the method of fault tree analysis, this paper demonstrates the reliability of the network scheme in one certain smart substation. Industrial Ethernet transmission analysis on delay and OPNET Modeler are also employed to proof the cobweb topology performs well in reliability and real-time. The results of the theoretical analysis and simulation indicate that the cobweb topology structure exhibits excellent reliability and realtime in smart substation GOOSE communication network.