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Pat. 10158230 United States, Int. Cl.22 H02J 3/01, G01R 19/00, G01R 27/02, H02J 3/18, H02J 3/38, H02M 1/12, H02M 7/44. Compensating electrical harmonics on the electrical grid : Appl. N 14/899694 : Filed 18.06.2013 : Pub. 18.12.2018 : / Amit Kumar Gupta, Manoj Gupta, Dilip Kumar Guru ; Assignee Vestas Wind Systems As ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10158230/en?oq=US10158230.html (дата обращения: ДД.ММ.ГГГГ).