A new design technique based on a suitable choice of rotor geometrical parameters to maximize torque and power factor in synchronous reluctance motors: Part II - Finite-element analysis and measurements

The influence of rotor geometry of synchronous reluctance motors (SRMs) on the x(d)/x(q) ratio, electromagnetic torque and iron losses is studied. Bot h air-gap length and rotor pole are are taken into account as parameters. I n a companion paper (Part I-Theory) a new theoretical approach was develope d neglecting saturation effects. Here (Part II), the analytical determinati on of the parameters and the machine behaviour is performed for a particula r SRM, on the statement of Part I, including saturation effects. Also a com plete finite-element analysis is carried out, followed by a comparison with results obtained by tests performed in a prototype machine, which was cons tructed in order to validate the proposed methodology.