volume | PIER Journals

Abstract

This paper presents an adaptive Direct Torque Control with Space Vector Modulation (DTC-SVM) strategy for a five-phase induction machine fed by a two-level inverter, designed to tolerate single open-phase faults. Under such fault conditions, the five-phase inverter generates only 16 voltage vectors distributed across 8 sectors, requiring a reconfiguration of the DTC-SVM control scheme. The proposed method introduces a modified vector selection and sector allocation approach tailored to faulted operation, enabling reliable performance without extensive controller redesign. Simulation studies in MATLAB/Simulink and experimental validation on a 3.5 kW five-phase induction motor confirm the effectiveness of the proposed approach. The results show that the adaptive DTC-SVM reduces torque ripple, maintains stable flux and current waveforms, and preserves fast dynamic response during sudden load changes. In addition, the method remains straightforward to implement, combining the simplicity of DTC with the improved voltage utilization of SVM.

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Dr. Mohamed Chafaa Madaoui

Mr. Abdelfattah Hoggui

Dr. Ali Benachour

Dr. Lotfi Kerchich

Dr. Meriem Isra Bazzine

Prof. Mohand Oulhadj Mahmoudi

Dr. Mohamed Tadjine