The Research and Application of Process Layer Network Technology in Intelligent Substation

The operation stability of process layer network is related directly to the safe and stable operation of intelligent substation. This paper puts forward three typical process layer network scheme, based on the analysis of theory, composition and basic requirements of the process layer, such as the network topology structure, SMV sampling information and GOOSE network and data transmission communication model. Three kinds of schemes had been tested specially many times in a intelligent substation in north-east of china, and it is validated that combination of three nets technology scheme proposed in this paper can meet the requirements of the safety and reliability operation of intelligent substation. The combination can significantly improve process layer network operational reliability. It is proved that networking scheme in the paper is feasible and worth popularizing.