Determination Of An Optimal Shape Of Rotor For The Synchronous Reactive Frequency Doubler

While developing an electrical machine, the main task is to obtain an optimal magnetic field’s distribution. It can be reduced to the selection of such constructive parameters that ensure the best circumstances for magnetic field’s existence. This work is dedicated to the determination of an optimal rotors shape for the synchronous reactive frequency doubler (SRFD). The task is solved by using the finite element method implemented in QuickField software. As a result the rotor’s optimal shape is obtained which ensures the highest increased frequency EMF induction. While studying electrical machine’s magnetic field, it is necessary to face analysis tasks, as well as synthesis tasks. Analysis inludes clarification of how different parameters (for example: current, magnetic system’s separate parts shape and geometrical dimensions, characteristics of different magnetic materials etc.) influence the magnetic field’s character, the fielddependent parameters. Synthesis implies receiving the necessary magnetic field’s distribution, which ensures defined/assigned characteristics (for example: magnetic flux, electromotive force, electromagnetic torque, etc.) Along with the other multiple questions, specific requirements are being raised with regard to induction distribution in the air gap and the higher harmonics maintenance in fixed constrains.