The contribution of this paper is to provide a simple but quite rigorous analytical method for computing the cogging torque in surface mounted permanent magnet synchronous machines. It relies on the fact that the magnetic energy variation due to the presence of a slot on the stator side of the...

Polyphase permanent magnet synchronous motors are well suited for electromechanical actuation systems demanding a high level of reliability. They are indeed able to run on a reduced number of phases and therefore to make the actuation system fault tolerant. The paper introduces a Lagrangian...