Direct Torque Control of Asymmetrical Multiphase (6-Phase) Induction Motor Using Modified Space Vector Modulation

摘要

DTC of an asymmetrical multiphase 6-phase induction machine is proposed in this work. The proposed technique uses modified SVM to reduce the Total Harmonic Distortion around the acceptable limits, as obtained from commonly used conventional technique. The value of currents in x-y subspace is plotted. Vectors of groups D_1 and D_2 are formed by assigning proper times. The proposed method is free from switching sequence and no designed is required and dynamic behavior of the machine remains unchanged.