Direct Torque Control of Induction Motor Fed by Three-level Inverter Using Fuzzy Logic

Direct Torque Control of Induction Motor Fed by Three-level Inverter Using Fuzzy Logic

Berrabah Fouad* Chebabhi Ali Zeghlache Samir Saad Salah

Department of Electrical Engineering, University of M’sila, Algeria, BP-166 University of M’Sila 28000

Laboratory Systèmes Electromécaniques (LSELM), University of Annaba, Algeria

ICEPS Laboratory (Intelligent Control & Electrical Power Systems). Djillali Liabes University of Sidi Bel-Abbes Algeria;Faculty of Science and Technology, University of Bordj Bou Arreridj, Algeria

Corresponding Author Email:
17 June 2017
25 July 2017
31 December 2017
| Citation



The present paper describes the direct torque sensor less speed control of induction motor fed by three-level voltage source inverter. Inverter switches control is based on fuzzy logic control. Compared to conventional direct torque control (DTC), hysteresis controllers, flux position and voltage vector selection table are replaced by fuzzy logic blocks to realize a DTC-fuzzy control. The obtained results have showed high speed performance, reduced torque and flux fluctuations when the proposed DTC-fuzzy strategy is used for the control of three-level voltage source inverter associated with induction machine.


DTC, Fuzzy logic, DTC- FLC, Three-level NPC Inverter.

1. Introduction
2. Theoretical Development of Direct Torque Control
3. Three-Level Voltage Inverter Operation and Modeling
4. Direct Torque Control with Fuzzy Logic Control (DTC-Fuzzy)
5. Adaptive Estimation of Speed with Reference Model (MRAS)
6. Simulation and Results
7. Conclusion

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