Proceeding from the hardware structure and software configuration of smart substation design
the function distribution and structure characteristics of the secondary system are analyzed. The implementation process and software configuration of an information model of the IEC 61850 standard are investigated. In light of the demand for design expression method of the secondary system
a simultaneous design method based on standardized virtual terminals and virtual secondary circuits is proposed. Based on the virtual terminals and traditional secondary circuits
the design drawings and the data model configuration for the IEC 61850 standard are integrated
and the logic connections implicit in the information model are expressed in the form of visual working drawings. Network connection charts
sampling value (SV)/generic object-oriented substation event (GOOSE) information flow charts and virtual secondary circuit charts are employed to fully reflect the information connections of devices. The design expression is conducive to a clear understanding and mastery of the mutual information of the smart equipment by construction and debugging personnel
and will improve the operation efficiency on the spot.