Yuan, Chang; Yang, Dan; Feng, Jiayao; Liu, Chang: 'Constrained operation zone of a VSG considering the DC-side power margin', The Journal of Engineering, 2019, 2019, (16), p. 2563-2568, DOI: 10.1049/joe.2018.8679
IET Digital Library, https://digital-library.theiet.org/;jsessionid=bs6adchnls5ph.x-iet-live-01content/journals/10.1049/joe.2018.8679