Zhanhe LiZhanhe Li is currently a Postdoctoral Researcher at the Hong Kong Polytechnic University, Hong Kong SAR. He received his B.S. degree in electrical engineering from Tianjin University, Tianjin, China, and his Ph.D. degree from the Department ofElectrical Engineering at Tsinghua University, Beijing, China. His research focuses on flexible traction power systems, optimal power flow, and power system planning. Read More Read Less