Pulse injection-based sensorless switched reluctance motor driver model with machine learning algorithms

Review of speed estimation algorithms for three- phase induction motor

“…Its simplicity and quick computational time distinguish the direct calculation approach of speed estimation for induction motors. the procedure of rotor flux estimation is the essential component of a speed estimation scheme [ 33 , 66 , 71 , 72 ]. The procedures included in rotor speed estimation might be clarified into the following [73] : First, the rotor flux in the stationary frame of reference depending on the obtained voltages and currents of stator is estimated utilizing Eqs.…”

“…Sensor based speed estimators have the issues of high cost, complexity of installation, accommodating space, maintenance, intrusiveness, limited adaptability, delay in measurement, calibration, compatibility and environmental effect on sensor [ 4 , 14 , [60] , [61] , [62] , [63] , [64] ]. Using sensor based estimators especially in industrial applications such as steel rolling mill, ceramic and cement industries leads to the inaccurate results [ 25 , 65 , 66 ]. The development of research in speed estimation systems resulted in different techniques of sensorless based speed estimators for estimating the speed of induction motor drive systems.…”

“…The slots of rotor are particularly changed to obtain the necessary space harmonics in the case of speed estimation based on signal injection, and the saliency of the rotor position is identified by the algorithm of position estimation. For this, a closed loop observer model in combination with appropriate processing was utilized to track the rotor saliencies using a component of high-frequency voltage as the carrier signal [ 49 , 56 , 66 , [108] , [109] , [110] ]. Even while operating at low or no speed, the signal injection is still present.…”