A new optimization approach for the design of IPM synchronous motor with wide constant-power region

The paper proposes an optimization procedure for the design of a three-phase Interior Permanent Magnet synchronous motor. The aim is to investigate the possibilities to maintain constant the power in the field-weakening region minimizing the active volume and maximizing the power output. The design optimization is based on a new algorithm belonging to the class of Controlled Random Search algorithms. This optimization technique has been able to find very efficient design pointing out its effectiveness besides its versatility and robustness.