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Pat. 10630215 United States, Int. Cl.22 H02P 9/00, H02M 5/458, H02M 7/493, H02P 9/10, H02P 29/50. System and method for operating a doubly fed induction generator system to reduce harmonics : Appl. N 15/817502 : Filed 20.11.2017 : Pub. 21.04.2020 : / Robert Gregory Wagoner, David Smith ; Assignee General Electric Co ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10630215/en?oq=US10630215.html (дата обращения: ДД.ММ.ГГГГ).