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Pat. 11056885 United States, Int. Cl.22 H02J 3/00, H02J 3/30, H02M 5/458, H02P 9/10, H02H 9/02. Method of providing power support to an electrical power grid : Appl. N 16/343650 : Filed 21.10.2016 : Pub. 06.07.2021 : / Jean-Philippe Hasler, Jan Kheir, Philippe Maibach ; Assignee Abb Power Grids Switzerland Ag ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11056885/en?oq=US11056885.html (дата обращения: ДД.ММ.ГГГГ).