Maximum torque per ampere control of six-phase synchronous motor

In this paper, control strategy of maximum torque per ampere (MTPA) is proposed for six-phase synchronous motor operation. The technique is simple in structure and has the straightforward goal of minimizing the stator current amplitude for a given load torque. It is shown that the resulting motor efficiency is reasonably close to optimal resulted from the minimized losses. A block diagram for the implementation technique is shown and simulated using MATLAB.