Research on Digital Modeling Method of the Control Protection System of DC Converter Stations based on Digital Twin Technology
Songtao Chen, Xintong Mao, Bin Bai, Peng Ji, Liu Wei · 2022 IEEE 5th Advanced Information Management, Communicates, Electronic and Automation Control Conference (IMCEC) · 2022
The digital twin of the control protection system of the ±800kV DC converter station is based on the three-dimensional digital modeling of the control protection system and its secondary loop. The digital modeling platforms in this thesis include aspects such as three-dimensional modeling of physical objects, digital modeling of physical loops, digital modeling of signal loops, and the interaction and coupling of them. The three-dimensional modeling construction of the whole station is implemented based on the board library, equipment library, and cabinet library. For the first time, loop relationship ID tags are used to implement the in-cabinet and inter-cabinet physical loop digital modeling management and configuration, and convert-er-station-oriented control protection device information is entered to define the process, format and attribute of signal loop digital modeling, and transmission information and physical loop are coupled based on the loop relationship, to conduct a complete digital configuration platform and process, implementing the entire mod-eling and digitalization handover of the control protection system and its loop of the DC converter station, setting a basis for researches on the digital twin of the control protection system of the DC converter station and related advance application of operation and maintenance.