Prediction of chaos in non-salient permanent-magnet synchronous machines

This Letter tries to find the area in parameter space of a non-salient Permanent-Magnet Synchronous Machine (PMSM) in which chaos can occur. This area is briefly named as chaotic area. The predicted chaotic area is obtained by checking some conditions which are necessary for existence of chaos in a dynamical system. In this Letter, it is assumed that this machine is in the generator mode, and its model is based on direct and quadrature axis of stator voltages and currents. The information of the predicted area is used in non-chaotic maximum power control of torque in the machine.

► The chaotic area is found for the PMSM. ► Some conclusions about the physical interpretation of the chaotic area are given. ► Results are used in non-chaotic maximum power control of torque in the machine.