Torque performance comparison from three-phase with six-phase induction machine

In order to compare the torque performance of the three-phase induction machine with the six-phase induction machine, an experimental setup to test the torque performance has been done; Under the same condition and by using different control principle the three-phase and six-phase machines constructed for the same frame of the stator and rotor are tested. The three-phase is driven by Danfoss drive and the six-phase machine is controlled by special phase current waveform proposed by authors. The advantage of the six-phase machine control method is that it becomes true to control, directly and separately, the torque and flux of the machine without any PARK transform. The physical control concept for the six-phase machine is clear. The compared results from the experiment show that the torque performance from six-phase machine is much superior to the three-phase machine.