Gao, Benfeng; Hu, Yunting; Song, Ruihua; Li, Ren; Zhang, Xuewei; Yang, Lin; Zhao, Shuqiang: 'Impact of DFIG-based wind farm integration on sub-synchronous torsional interaction between HVDC and thermal generators', IET Generation, Transmission & Distribution, 2018, 12, (17), p. 3913-3923, DOI: 10.1049/iet-gtd.2018.0328
IET Digital Library, https://digital-library.theiet.org/;jsessionid=9ojtqgqs3iff9.x-iet-live-01content/journals/10.1049/iet-gtd.2018.0328