Stumpe, Maximilian; Tünnerhoff, Philipp; Dave, Jaykumar; Schnettler, Armin; Ergin, Dominik; Schön, Andre; Würflinger, Klaus; Schettler, Frank: 'DC fault protection for modular multi-level converter-based HVDC multi-terminal systems with solid state circuit breakers', IET Generation, Transmission & Distribution, 2018, 12, (12), p. 3013-3020, DOI: 10.1049/iet-gtd.2017.1322
IET Digital Library, https://digital-library.theiet.org/;jsessionid=764ngkzi4bwj.x-iet-live-01content/journals/10.1049/iet-gtd.2017.1322