TY JOUR TI Using of functional generators with asymmetrical failure for AC electric drive control KW functional generator KW electric drive KW three-phase induction motor KW safe control KW inverter KW bridge circuit KW efficiency coefficient KW pulse-width modulation KW insulated gate transistors KW compact relay KW mechanical circuit opening JO Transport automation research AU Nikitin, A.. AU Kovkin, A.. PY 2016 IS 2 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"