It's good. Modular power electronics technology and flexible DC transmission technology are studied, and a series of research results have been obtained in modular multilevel converter technology, high voltage frequency conversion technology and high voltage DC/DC conversion topology. Li Binbin, born in August 1989, is now an associate professor at Harbin Institute of Technology. He has published more than 40 academic papers, including more than one IEEETransactions paper 10 published by the first author, which has been cited by Google for more than 450 times, with H factor 10. 1 paper was selected as a highly cited paper of ESI, and 7 national invention patents were authorized, and 8 scientific research projects were hosted and participated.