AUTONOMOUS INVERTER OF UNINTERRUPTIBLE POWER SYSTEM WITH ALTERNATING CURRENT GENERATOR Russian patent published in 2006 - IPC H02M7/515 H02J3/16 H02J9/06 

FIELD: electric engineering, possible use in uninterruptible power supplies, used, in particular, in wind-power engineering.

SUBSTANCE: in autonomous inverter of uninterruptible power supply with alternating current generator, thyristor bridges by diagonals of direct current are connected to direct current source through force transistor. It additionally includes capacitor matrix with circuit for phase auto-adjustment of network frequency with n circuits connected in parallel, formed by serial connection of capacitor and two-directional key. Capacitor of each i+1 capacitor equals two nominal values of i capacitor. Controlling inputs of two-directional keys are connected to binary outputs of circuit for phase auto-adjustment of frequency. Output winding of generator and capacitor matrix are enabled in alternating current diagonals of thyristor bridges.

EFFECT: expanded range of used powers of unstable sources of electric energy and stabilization of generator frequency under conditions of changing wind energies.

1 dwg