Wei, Qiang; Guo, Moufa; Han, Xueshan; Guo, Weimin; Yang, Ming: 'New approach of automatic generation control based on absolute rotor angle droop control', IET Generation, Transmission & Distribution, 2018, 12, (14), p. 3561-3568, DOI: 10.1049/iet-gtd.2017.0394
IET Digital Library, https://digital-library.theiet.org/;jsessionid=7sfec8gasf0b3.x-iet-live-01content/journals/10.1049/iet-gtd.2017.0394