Francesco Papini

Comparison of surface mounted and uneven consequent-pole PM high-speed machines

Surface mounted permanent magnet synchronous machines are nowadays used in a wide range of applications and power ratings, thanks to their high efficiency and ease of control. However, when used in high-speed applications, the need of some feature retaining the magnets increases the effective magnetic air gap, thus lowering the performance of the motor. This paper proposes a rather unconventional rotor structure based on the consequent pole arrangement. Different rotor topologies are discussed and compared.

Dynamic analysis tool for the design of tubular linear permanent magnet machines

This paper presents an analytical tool for tubular linear permanent magnet (PM) machine design and analysis. This tool provides fast solutions to the system variables of a linear motor, e.g., force, current, voltage, loss, efficiency, etc., while taking into account the dynamic load cycle and movement profile. Extensive validation of the analytical tool has been carried out with results from FEM simulations using the software package Maxwell.