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Pat. 10283965 United States, Int. Cl.22 H02J 3/36, H02J 1/10, H02M 5/42. Method for incorporating non-operating station into operating system in multi-terminal flexible DC transmission system : Appl. N 15/504323 : Filed 18.04.2014 : Pub. 07.05.2019 : / Yunlong Dong, Gang Li, Jie Tian, Nannan Wang, Chao Liu ; Assignee Nr Electric Co Ltd, Nr Engineering Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10283965/en?oq=US10283965.html (дата обращения: ДД.ММ.ГГГГ).