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Pat. 11128231 United States, Int. Cl.22 H02M 5/458, F03D 9/25, H02H 7/122, H02K 7/18, H02K 55/00, H02M 1/14, H02M 5/45. System and method for exciting low-impedance machines using a current source converter : Appl. N 16/529118 : Filed 01.08.2019 : Pub. 21.09.2021 : / Yuntao Xu, David Allan Torrey ; Assignee General Electric Co ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11128231/en?oq=US11128231.html (дата обращения: ДД.ММ.ГГГГ).