Design of Synchronous Reluctance Motor With Minimised Torque Ripple Based on Analysis of Flux Density Harmonics

The paper considers a novel simple approach for the design of SynRM with minimized torque ripple with an example of a 12 kW 24000 rpm Synchronous Reluctance motor equipped with an Axially Laminated Anisotropic rotor (ALASynRM). The method is, especially, handy for ALASynRM. The approach is based on the analysis of harmonics of the air gap flux density distribution and adjustment of the stator or rotor geometry to avoid interaction of stator- and rotor-produced harmonics with the same order.