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Pat. 10439533 United States, Int. Cl.22 H02P 9/00, F03D 9/25, H02M 3/335, H02M 3/337, H02M 5/458, H02M 1/00. Power converter for doubly fed induction generator wind turbine systems : Appl. N 15/399049 : Filed 05.01.2017 : Pub. 08.10.2019 : / Robert Gregory Wagoner, Govardhan Ganireddy, Saurabh Shukla, Rajni Kant Burra, Ravisekhar Nadimpalli Raju, Rui Zhou, Rajib Datta, John Leo Bollenbecker ; Assignee General Electric Co ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10439533/en?oq=US10439533.html (дата обращения: ДД.ММ.ГГГГ).