TY - JOUR N2 - The paper presents the analysis of different fault states in drive systems with multiphase induction motors. The mathematical models of a five-phase and six-phase induction motor and the MRASCC estimator have been presented and the description of the Space Vector Modulation has been shown. The Direct Field-Oriented Control (DFOC) system is analyzed. Results of the simulation and experimental studies of the Direct Field-Oriented Control systems in the fault conditions are presented. The author’s original contribution includes analysis and studies of the DFOC control method of a five-phase induction motor resistant to the motor speed sensor fault with the use of the MRASCC estimator. L1 - http://journals.pan.pl/Content/114125/PDF/08_AEE-2019-4_INTERNET.pdf L2 - http://journals.pan.pl/Content/114125 PY - 2019 IS - No 4 EP - 830 DO - 10.24425/aee.2019.130685 KW - Direct Field-Oriented Control method KW - Fault Tolerant Control KW - MRASCC estimator KW - multiphase squirrel-cage induction motor KW - sensorless drives KW - Voltage Source Inverter faults A1 - Listwan, Jacek Jan PB - Polish Academy of Sciences VL - vol. 68 DA - 2019.12.02 T1 - Analysis of fault states in drive systems with multi-phase induction motors SP - 817 UR - http://journals.pan.pl/dlibra/publication/edition/114125 T2 - Archives of Electrical Engineering ER -