TY JOUR TI Results of studies of higher harmonics during the operation of ship frequency-controlled asynchronous electric drives KW frequency-controlled asynchronous electric drive KW higher harmonics KW voltage KW current KW torque KW self-resonant frequency JO Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies AU Beley, V.F. AU Korotkikh, K.. AU Sinyavskij, N.. PY 2023 IS 2023 PB Astrakhan State Technical University