GENERATOR WITH THE SHAFT ROTATION CHANGING FREQUENCY AND COMBINED EXCITATION VOLTAGE STABILIZATION METHOD Russian patent published in 2019 - IPC H02P9/14 H02P9/30 H02K19/36 H02K21/04 

FIELD: electrical equipment.

SUBSTANCE: invention relates to the field of electrical equipment and can be used in the aircrafts power supply systems. Generator voltage stabilization method consists in the exciter excitation current value changing in the second range and its direction changing. Implementing the method device contains main inductor, including a permanent magnet (1), a non-magnetic material bushing (2), a shaft (3), retaining ring (4), composed of the magnetically conductive and magnetically non-conductive material parts, additional inductor made in the form of a magnetic conductor (5), a pole tip (6), an excitation winding (7), contact rings (8), bushings (9) from insulating material, contact brushes (10) with the corresponding terminals (10₊ and 10_-), separated by the gap stator magnetic circuit the main (13) and the additional (14) parts. In the stator magnetic circuit the main (13) and additional (14) parts slots an armature winding (15) is laid. All of the said elements are located in the housing (16). Combined excitation electric machine (CEEM) contains its output voltage stabilization unit (19) (VSU) as a function of the shaft 1 rotational speed changing, which includes the power part (20) (VSU PP) and the VSU PP (20) control system (21) (CS). Units (20, 21) required power supply is provided the in-house needs power supply unit (INPSU) (22). At the ƒ>ƒ_nom frequency the control system (21) (VSU CS), using information from the armature winding (15), generates control signals for the VSU (19) power part (PP) (21) key elements, which provides a in the applied by the brushes (10) to the contact rings (8) voltage polarity change, therefore, the current in the excitation winding (7) changes its direction to the opposite one, induced by an additional inductor, voltage in the armature winding (15) changes its sign to the opposite, and the induced by the inducers in the winding (15) voltages are not added but subtracted.

EFFECT: increase in the stabilization process energy efficiency.

1 cl, 2 dwg