Yu Liu received B.S., M.S., and Ph.D. degrees in electrical engineering from the School of Electrical Engineering, Southeast University, Nanjing, China, in 2011, 2014, and 2018, respectively. He was a visiting scholar with the University of Alberta, Edmonton, AB, Canada from 2015 to 2016. He is currently a Lecturer at the School of Electrical Engineering, Southeast University. His research interests include smart grids, integrated energy systems, and non-intrusive load monitoring.