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This paper deals with improvement of Direct Torque Control strategy for induction motor (IM) drive. Since the main disadvantages of the classical DTC are high torque/flux ripples and current distortion, this paper inserts the space vector modulation in order to reduce the ripples by maintaining a constant switching frequency. Besides, the fuzzy logic controllers will replace the traditional proportional-integral...
This paper presents a backstepping nonlinear control algorithm based on the field-oriented strategy of the induction motor drive. The control design of the IM is based on the reduced model (dedicate for the fault diagnosis) of the squirrel rotor cage in healthy state. Backstepping technique is suggested for obtaining good dynamic motion control systems by replacing the traditional PI controllers....
This paper work addresses the enhancement of this technique by associating it the polar coordinates as a proposed tool for a better detection and location of the faulty inverter switch. The proposed use of the polar coordinates tool not only allows the exact computation of both the magnitude and the phase angle values of the fault current vector allied to the faulty inverter IGBT but also enables...
This paper focuses on a robust backstepping control of induction motor vector. The motor is coupled to a centrifugal pump as mechanical load, fed by a standalone photovoltaic generator, equipped by the lead acid battery storage system. Throughout this attempt, two main objectives have been achieved; firstly, assuring the continuity of electrical energy production. Secondly, operating the photovoltaic...
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