Research on SSD Based Automatic Virtual Terminal Connection of Smart Substation

In current design and configuration stages of smart substation, manual configuration of virtual terminal connection relation is needed, while the result would be generated repeatedly and user needs to select template for automatic connection based on template, that is likely to make mistake and difficult for check and management. Hence proceeding from the primary and secondary devices association in the SSD file, research on the virtual terminal connection relation template for typical bays of various voltage levels and connection types is made. A method of smart substation virtual circuit automatic connection is proposed. By realizing automatic process of bay mapping, device mapping and virtual terminal mapping from the model in the SCD to the template in system configuration tool of smart substation, this method could improve automation level and accuracy of system configuration and be used to check the correctness of the virtual terminal connection relation in the SCD file.