Cogging torque reduction with pole slot combination and notch

In this paper, we examine the basic method of reducing cogging torque by using the combination of slot and pole number with a simple software. The methods were applied to basic permanent machine designs and the performance was calculated using finite-element analysis (FEA). Prototypes of the machine designs were constructed and simulation results are obtained. To define pole and slot number combination a simple factor known as "goodness factor" is used. Every simulation result is obtained from MagNet Infolytica trial edition.