Publications by Zhifeng He There are ... items referenced. Alternative author names: Zhifeng He. 2026 -- Zhenglong Sun, Naiyuan Liu, Zhifeng He, Yidong Yang, Rui Zhang, Hao Yang, Juri Belikov, Yoash Levron, Guowei CaiStability Region Boundary of Multi-Parallel Grid-Following Converter Systems Considering Nonlinear Coupling Interactions 2025 -- Naiyuan Liu, Zhenglong Sun, Zhifeng HeStability Region Boundary of Multi-Paralleled Grid-Following Converter Systems Considering PLL Coupling Interactions