Multi-Objective Optimization of VSC Stations in Multi-Terminal VSC-HVdc Grids, Based on PSO. - Ali Raza 002; Zain Yousaf; Mohsin Jamil; Syed Omer Gilani; Ghulam Abbas 001; Muhammad Uzair; Saima Shaheen; Abdeldjabar Benrabah; Fajun Li (IEEE Access, 2018)