Sensorless Direct Torque Control of the Six-Phase Induction Motor by Fast Reduced Order Extended Kalman Filter

Table 4

Motor symbols.

DTC	Direct torque control	ROEKF	Reduced order EKF
FOC	Field oriented control	SNR	Signal-to-noise ratio
EKF	Extended Kalman filter	PSO	Particle Swarm Optimization
VSD	Vector space decomposition	6PIM	Six-phase induction motor
VSI	Voltage source inverter	DSP	Digital signal processor
CPU	Central processing unit	FPGA	Field programmable gate array