Research on the location of secondary loop of UHVDC station based on digital twin

Aiming at the problem of fault location of the secondary circuit of the UHVDC station, the digital twin method is used to build the secondary circuit of the converter station, and various different fault data of the known loop are simulated based on the model, and the fault loop is located according to the different data using CNN. Firstly, the structure of the secondary circuit of the converter station is introduced, the C language and UNITY Script language are used as scripts to build the digital twin system of the secondary circuit of the converter station, and the different fault data of the three circuits are simulated by using the system, and finally the CNN is used to extract the characteristics of the fault data of the secondary circuit of different converter stations, and then find out the fault circuit according to the different characteristics to achieve fault location.