Dr Ning Li is an associate professor and vice director in the Department of Power Electronics and Motor, School of Electrical Engineering, Xi'an University of Technology. He received B.S., M.S. and Ph.D. degrees from the Xi’an Jiaotong University (XJTU), Xi’an, China, in 2006, 2009 and 2014, respectively, all in electrical engineering. In 2018, he was with Energy Engineering, Mälardalen University, Västerås, Sweden, as a visiting scholar. From 2019 to 2020, he was with the Department of Electronic, Electrical, and Systems Engineering, School of Engineering, University of Birmingham, Birmingham, UK, as a postdoctor. His research interests include the optimal control of new energy grid-connected devices, optimal design of high-efficiency DC conversion devices, and state detection and evaluation of comprehensive new energy systems.