Equivalent Active Distribution Networks Considering Grid Forming Converters. - Jakob Ungerland; Nikhilkumar Poshiya; Wolfgang Biener; Hendrik Lens (ISGT-Europe, 2021)

A Voltage Sensitivity Based Equivalent for Active Distribution Networks Containing Grid Forming Converters. - Jakob Ungerland; Nikhilkumar Poshiya; Wolfgang Biener; Hendrik Lens (IEEE Trans. Smart Grid, 2023)