TY JOUR TI Improving the structure of the control system for an AC electric drive with asynchronous traction motors based on microprocessor computing devices KW Luenberger filter KW speed sensor KW control system KW microprocessor devices KW sensorless drive JO Bulletin of scientific research results AU Sorokin, F.A. PY 2024 IS 2024 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"