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Pat. 10153640 United States, Int. Cl.22 H02J 3/36, H02J 3/18, H02M 7/08, H02M 7/48. Unified power flow controller and control method thereof : Appl. N 15/739722 : Filed 30.11.2016 : Pub. 11.12.2018 : / Jiankun Liu, Ningyu Zhang, Qun Li, Jing Chen, Peng Li ; Assignee State Grid Corp of China Sgcc, Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10153640/en?oq=US10153640.html (дата обращения: ДД.ММ.ГГГГ).