CONTROL METHOD FOR MAGNETIC FLOW OF ELECTRICAL MACHINE Russian patent published in 2018 - IPC H02K19/20 

FIELD: electricity.

SUBSTANCE: stator is equipped with two stator coils and a permanent magnet. Variable magnetic fields that are synchronous with the rotation of the shaft of the electric machine are created in two stator coils, as a result of which the stator coils receive alternating voltages, which are then rectified. The ring permanent magnet is located in the middle of the stator. Two face plates are fixed to the shaft in the end of the stator. The stator coils are placed between the permanent magnet and each of the face plates. The magnetic flux of the permanent magnet is closed in two opposite directions along the shaft and two face plates on the stator body. On the face plates, n cuts in the form of a meander are made in the places of the gap with the stator, and on the stator in the places of the gap with two face plates similar n cutouts are made, shifted to each other by half a period. As a result, in each of the two stator coils, as the shaft rotates, two magnetic fluxes, closing through the gaps, are created periodically increasing in linear fashion from zero to maximum, and then decreasing to zero. Changes of these fluxes are shifted in time by half a period. Rectangular voltage pulses are formed on the stator coils, shifted in phase with each other by 180°. After the full-wave rectification of the pulses, two constant voltages of different signs are obtained, which practically do not have pulsations and do not require smoothing.

EFFECT: improvement of output voltage quality.

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