Investigation of properties of disk-type motor electromagnetic circuit using alternative materials in stator/rotor core

Improved energy efficiency, limitation of production costs or increased power density of electrical machines are among principal incentives in searching for new, innovative designs. Undoubtedly, one of innovation features is application of alternative materials, which results in accomplishment of required technical or economic advantages. Different design variants of electromagnetic circuit of induction disk-type motor have been presented in this paper; these variants use alternative materials for stator and rotor cores. Results of calculations and lab tests of a model motor have been given. Cores of the motor models have been made of amorphous strip, of M470-50 electrical sheet, of solid steel and of Vacoflux48 strip with high flux density saturation values.