In this paper, a novel stator current based Model Reference Adaptive System (MRAS) estimator for speed estimation in the speed-sensorless vector controlled induction motor drives is presented. In the proposed MRAS estimator, measured stator current of the induction motor is considered as a reference model. The estimated stator current is produced in an adjustable model to compare with the measu...

Linear induction motors are under development for a variety of demanding applications including high speed ground transportation and specific industrial applications. These applications require machines that can produce large forces, operate at high speeds, and can be controlled precisely to meet performance requirements. The design and implementation of these systems require fast and accurate ...

The use of mechanical energy in daily life including industries and transport applications are increasing rapidly. Induction motor has special advantages because less cost, reliable, robust maintenance when compared to other motors. It also features which satisfies all the requirements. On whole 3-phase IM (Induction motor) plays major role several (i.e. industrial, mechanical). meticulous beha...

in conventional direct torque control (dtc), the stator flux is usually kept constant by controlling the x-axis component of the stator voltage in the stator flux reference frame. the torque is then controlled by the y-axis component of stator voltage. in this scenario, the stator current does not exceed its permissible value. however, in the so-called optimal efficiency mode, the induction mot...

⎯ In this paper, a novel approach for robust trajectory tracking of induction motor drive is presented. By combining variable structure systems theory with fuzzy logic concept and neural network techniques, a new algorithm is developed. Fuzzy logic was used for the adaptation of the learning algorithm to improve the robustness of learning and operating of the neural network. The developed contr...

—A nonlinear least-squares method is presented for the identi cation of the induction motor parameters. A major dif culty with the induction motor is that the rotor state variables are not available measurements so that the system identi cation model cannot be made linear in the parameters without overparametrizing the model. Previous work in the literature has avoided this issue by making simp...