MULTIPHASE AC ELECTRIC MACHINE Russian patent published in 2015 - IPC H02K3/28 H02K17/12 H02K19/10 

FIELD: electricity.

SUBSTANCE: invention is referred to the area of electric engineering, and namely to multiphase AC electric machines, and may be used for household appliances when the usage of compact-sized electric machines with high power performance is required. The suggested multiphase AC electric machine comprises a rotor and a toothed stator with an m-phase winding, at which each coil covers one tooth and diametrically opposed coils of the same module phase are connected accordantly and the modularity of the stator winding is related to the number of the stator teeth by the following formula: Z_s=2·m·M, where Z_s is the number of the stator teeth, m is the quantity of phases, M=p=1, 2, 3 … up to a technologically reasonable value - the quantity of modules equal to the number of pole pairs, at that the rotation speed of the electric machine magnetic field is defined as Ω=2·π·f/M, where f is the frequency of the supply mains, M is the quantity of modules.

EFFECT: increased specific torque and efficiency factor due to high magnetic coupling between circuits and potential modular structure of the design.

3 dwg