Hierarchical Control Implementation for Meshed AC/Multi-Terminal DC Grids With Offshore Windfarms Integration. - Faheem A. Chachar; Syed Sabir Hussain Bukhari; F. H. Mangi; D. Ewen Macpherson; Gareth P. Harrison; Waqquas A. Bukhsh; Jong-Suk Ro (IEEE Access, 2019)