This paper briefly describes a finite-element based method used to design a permanent magnet synchronous motor PMSM for variable-speed drive applications. The stator of the PMSM is identical to that of any three phase AC machine, so the stator frame of an induction machine was used for the design. Thus the stator dimensions and current rating are fixed thereby reducing the design to the optimisation of the magnetic loading of the motor. A key requirement is to obtain a machine capable of producing sinusoidal back emf and thus suitable for smooth torque generation when supplied with sinusoidal currents.

Keywords : Component; Formatting; Style; Styling; Insert.