ABSTRACT

This chapter deals with the finite element analysis of an interior permanent magnet motor. The interior permanent magnet motor is used in traction applications or when high dynamic performance is required. It is a synchronous motor, fed by sinewave currents via an electrical drive; therefore the analysis of such a motor is carried out by means of the direct and the quadrature axis theory. Two magnetic models of the motor are presented, and the procedures for obtaining them are illustrated. An automatic algorithm is also described to process the data obtained from the finite element analysis. The synchronous reluctance motor is discussed at the end of the chapter, considering such a motor as a particular case of the interior permanent magnet motor.