ASYNCHRONOUS TWO-FREQUENCY GENERATOR Russian patent published in 2007 - IPC H02K17/12 H02K17/16 

FIELD: electric machines (electro-mechanics), in particular, autonomous asynchronous generators, meant for usage in autonomous electric plants.

SUBSTANCE: asynchronous two-frequency electric machine contains short-circuited rotor and two three-phased windings combined in common core of stator with numbers of pole pairs p₁ and p₂, where EMF are induced at frequency f₁ and f₂ respectively, having clamps for connecting external electric circuits, including electric receivers, while in parallel to winding with number of pole pairs p₂ a three-phased excitation capacitor is connected, also contains a motor as supply of mechanical power which rotates shaft of machine, and additional three-phased excitation capacitor, connected in parallel to winding with a number of pole pairs p₁.

EFFECT: simplified supply of electric energy in autonomous electric plants with two frequencies of current and reduced losses of energy in such a supply.

1 dwg