Improved Torque Control Performance of Direct Torque Control for 5-Phase Induction Machine

Logan Raj Lourdes Victor Raj (Universiti Teknikal Malaysia Melaka)
Auzani Jidin (Universiti Teknikal Malaysia Melaka (UTeM))
Kasrul Abdul Karim (Universiti Teknikal Malaysia Melaka (UTeM))
Tole Sutikno (Universitas Ahmad Dahlan)
R. Sundram (Universiti Teknikal Malaysia Melaka (UTeM))
Mohd Hatta Jopri (Universiti Teknikal Malaysia Melaka (UTeM))

International Journal of Power Electronics and Drive Systems (IJPEDS)
Vol 3, No 4: December 2013

In this paper, the control of five-phase induction machine using Direct Torque Control (DTC) is presented. The general D-Q model of five-phase induction machine is discussed. The de-coupled control of stator flux and electromagnetic torque based on hysteresis controller similar to conventional DTC is applied to maintain the simplicity of the system. Three sets of look-up tables consist of voltage vectors with different amplitude that selects the  most optimal voltage vectors according motor operation condition is proposed. This provides excellent torque dynamic control, reduces torque ripple, lower switching frequency (high efficiency) and extension of constant torque. Simulation results validate the improvement achieved.DOI: http://dx.doi.org/10.11591/ijpeds.v3i4.5249