This article presents an up-to-date tutorial review of nonlinear Bayesian estimation. State
estimation for nonlinear systems has been a challenge encountered in a wide range of …

This letter addresses experimental validation of the reduced-order natural speed observer
design for position sensorless drive with nonsalient permanent magnet synchronous motor …

This article uses the active flux concept to review fundamental frequency sensorless
algorithms for both induction and permanent magnet motors in one framework …

Any mismatch between the real and tuned values of the stator resistance (R 8) leads to a
degraded performance of the direct torque control (DTC) strategy. The underestimation of R …

Harmonics and drifts are found in the position estimation errors of high-frequency signal
injection (HFI) methods. To suppress the position estimation error, a hybrid active flux …

This paper presents an effective implementation of an extended Kalman filter used for the
estimation of both rotor flux and rotor velocity of an induction motor. An algorithm proposed …

Currently, for many applications, it is necessary to know the speed and position of motors.
This can be achieved using mechanical sensors coupled to the motor shaft or using …

Sensorless-based direct vector control techniques are widely used for three-phase induction
motor drive, whereas in case of multiple-motor control, it becomes intensively complicated …

Signal processing of the brushed DC motor current was developed in this paper to obtain
information about a rotor speed from a measured motor current. The brushed DC motor …

This article first shows that the advanced high-gain adaptive observer (AO) is able to
estimate both speed and resistances during speed transients. However, it is also found that …