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Pat. 11146071 United States, Int. Cl.22 H02J 3/36, H02M 1/00, H02M 7/25. Coordinated control method and device for series voltage source converter valve group : Appl. N 16/770458 : Filed 28.11.2018 : Pub. 12.10.2021 : / Jiang Lu, Yu Lu, Yunlong Dong, Yongping Wang, Jie Tian, Haiying Li, Zhaoqing Hu, Nannan Wang, Ke Wang, Jiudong Ding ; Assignee Nr Electric Co Ltd, Nr Engineering Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11146071/en?oq=US11146071.html (дата обращения: ДД.ММ.ГГГГ).