Direct Flux and Torque Control of an Asymmetrical Six-phase Induction Motor

Direct flux and torque control (DTC) of induction motor is one of the most effective methods in control of this electric machine. Using DTC the restrictions and complexities of vector control can be avoided. In this paper، the algorithm of direct torque control of an asymmetrical six-phase induction motor with a two-level voltage source inverter is presented. The stator winding of an asymmetrical six-phase induction motor consists of two three-phase winding sets which have 30 degrees phase displacement. The machine is modeled based on vector space decomposition (VSD) theory. Selecting suitable switching vectors the flux and torque of the motor are controlled properly. The simulation results prove this statement.