Substation configuration description (SCD) integrated configuration as an important part of smart substation development

is exerting serious influences on the integration's efficiency and quality for its strong coupling character. Proceeding from the links of SCD integrating configuration

an analysis is made of the cause of coupling

and measures to improve SCD integrating configuration procedure are taken. By making clear the relationship between intelligent electronic device (IED) configurator and system configurator in IED capability description (ICD)

submitting and IED updating procedure

support of SCD paralleling configuration and evaluating the influence of configuration change

the decoupling of SCD integrating configuration is achieved. The practical significance of the decoupling method for smart substation development is seen in its reduction of iterations of configuration modification and increase in the efficiency of integration. This work is supported by State Grid Corporation of China.