Dr. Haoran Ji received his Ph.D. degree from the School of Electrical and Information Engineering, Tianjin University, China in 2019. He is currently a postdoc fellow at Tianjin University. His research is supported by China Postdoctoral Innovative Research Funding Program (2019). His research interests include distributed generation systems and optimal operation of distribution networks. He is a member of IEEE and has served for IEEE Transactions on Smart Grid and Applied Energy as reviewer.