DEVICE TO CONTROL SELF-CONTAINED INDUCTION GENERATOR VOLTAGE Russian patent published in 2009 - IPC H02P9/46 H02J3/18 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and can be used in self-contained induction generators used in the field conditions. Proposed device comprises additional three-phase electronic keys representing optoelectronic three-phase AC relays with switched voltage phase control via neutral, connected with stator output phase terminals and switched capacitor banks. Optron inputs of three-phase electronic keys are connected with control unit output. Control unit comprises three-phase rectifier, filter capacitor, variable resistor, comparators, reference voltage source and decoder. Three-phase rectifier input is connected with stator phase output terminals while rectifier out is connected with filter capacitor and variable resistor. The latter is connected with non-inverting inputs of voltage comparators. Comparator inverting inputs are connected, via voltage divider, with reference voltage source. Voltage comparator outputs are connected, via decoder, with three-phase electronic key optron inputs.

EFFECT: compensation of higher harmonic components and higher stability of output voltage.

2 dwg, 1 tbl