Real-time implementation of direct torque control using fuzzy logic and analytic approaches of an induction machine

2003 ◽  
Author(s):  
F. Bacha ◽  
R. Dhifaoui ◽  
B. Buyse
Keyword(s):  
Fuzzy Logic ◽  
Real Time ◽  
Direct Torque Control ◽  
Induction Machine ◽  
Torque Control

scholarly journals Fuzzy super twisting algorithm dual direct torque control of doubly fed induction machine

2021 ◽  
Vol 11 (5) ◽  
pp. 3782
Author(s):  
Boumaraf Farid ◽  
Boutabba Tarek ◽  
Belkacem Sebti
Keyword(s):  
Fuzzy Logic ◽  
Sliding Mode ◽  
Direct Torque Control ◽  
Induction Machine ◽  
Torque Control ◽  
Doubly Fed Induction Machine ◽  
Signum Function ◽  
Simulation Results ◽  
Doubly Fed ◽  
Twisting Algorithm

<span>This paper proposes the fundamental aspects of hybrid nonlinear control which is composed of the super twisting algorithm (STA) based second order sliding mode control applying fuzzy logic method (FSOSMC), with pertinent simulation results for a doubly fed induction machine (DFIM) drive. To minimize chattering effect phenomenon due to Signum function employed in sliding mode algorithm, a new method is proposed. This technique consists in replacing the signum function by fuzzy switching function in the SOSMC to minimize flux and torque ripples. This FSOSMC is associated to the double direct torque control DDTC of the doubly fed induction machine (DFIM) by combining the advantages of fuzzy logic (FL) and the advantages of super-twisting sliding mode. The FSOSMC-DDTC strategy is compared with a PI-DDTC and SOSMC-DDTC. Simulation results demonstrate good efficiency and excellent robustness of the hybrid nonlinear controller.</span>

scholarly journals A New Direct Speed Estimation and Control of the Induction Machine Benchmark: Design and Experimental Validation

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Ali Hmidet ◽  
Rachid Dhifaoui ◽  
Othman Hasnaoui
Keyword(s):  
Real Time ◽  
Direct Torque Control ◽  
Induction Machine ◽  
Fast Response ◽  
Industrial Applications ◽  
Torque Control ◽  
Direct Control ◽  
Speed Sensorless ◽  
Time Operation ◽  
Estimation And Control

Speed sensorless control schemes have potential benefits for industrial applications because they contribute to reducing process cost and they avoid using fragile sensors as encoders or resolvers in hostile environment. In addition, simplicity, reliability, and fast response of control structures to signal commands are much-needed features. In this paper, a new Speed Sensorless Direct Control (SSDC) technique allowing the achievement of these objectives is proposed. This technique combines Field Oriented Control (FOC) and Direct Torque Control (DTC) properties in the same approach. The estimated speed is reached only according to the measured current and voltage of the stator. DTC is extended to speed sensorless direct control with any notable modification. The proposed scheme is implemented to the induction machine benchmark and evaluated in real time under various possible scenarios of use. Experimental results show that the proposed SSDC has interesting capabilities to conduct induction motor in real time operation with good accuracy.

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