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Pat. 10027121 United States, Int. Cl.22 H02J 3/18, H02J 3/12, H02J 3/38, H02M 5/12, H02P 13/06. Method and apparatus for controlling stability of a local power grid : Appl. N 14/911392 : Filed 13.08.2014 : Pub. 17.07.2018 : / Alexei Babizki, Haijun Feng ; Assignee Maschinenfabrik Reinhausen Gmbh ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10027121/en?oq=US10027121.html (дата обращения: ДД.ММ.ГГГГ).