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This paper presents the experimental validation of an efficient position control scheme, based on the speed smooth VSC (Variable Structure Control) algorithm with an adaptive gain for the indirect vector control of the induction motor. The position loop is regulated with a Proportional controller and the speed loop incorporates a smooth and adaptive VSC regulator, while in the current loops incorporates...
In this paper, a novel torque ripple minimization method, namely, sliding mode variable structure is proposed for switched reluctance motor (SRM). The total reference torque is calculated by the speed error via the sliding mode variable structure controller, and the expected phase torque will be got through the Torque Sharing Function. Then make margin calculations between the expected phase torque...
The paper introduces the components of the double switched reluctance motors drive system. There are two controllers, such as the main controller and the subroutine motor. The main controller is for the closed-loop rotor speed control of the main motor, in which sliding mode control algorithm is adopted. The subroutine controller is for the closed-loop rotor speed control of the subroutine motor,...
To minimize the ripples of the electromagnetic torque and flux linkage, fix the variable switching frequency, produced in the conventional direct torque control (DTC) system for permanent magnet synchronous motor (PMSM), a space vector modulation (SVM) DTC strategy was introduced based on PI predictive controller. This strategy and the conventional DTC were simulated by the Matlab/Simulink toolbox,...
The paper proposes a method for the compensation of the torque ripple that is caused by motor unidealities in sensorless permanent magnet synchronous motor drives. The sensorless control of the interior-magnet motor is based on a speed-adaptive observer augmented with a pulsating high-frequency signal injection technique at low speeds. The harmonics in the permanent magnet flux and stator inductances...
This paper presents an original direct torque fuzzy control (DTFC) of a voltage source PWM inverter fed induction motor drive. First a direct torque fuzzy control (DNFC) of a voltage source PWM inverter fed induction motor drive is presented and its performances are compared to those of a classical DTC control. Then a variable gain PI speed controller is introduced to improve these performances. The...
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