Patent ID: 6025701
Filing Date: 2000-02-15
Classification: H02J,Y02E

Abstract:
A method for static and dynamic support of a mains voltage at a network node, which comprises:providing a static power factor correction device with a transformer and a self-commutated converter with at least one capacitive energy store;continuously determining reference values as a function of deviations between a magnitude of a mains voltage space vector at the network node and a predetermined magnitude reference value of the mains voltage space vector;producing a phase angle as a function of deviations between an actual value and the reference values, the phase angle indicating an instantaneous phase shift of a generated voltage-space vector of the self-commutated converter with respect to a measured mains voltage space vector;determining from the phase angle an angular position of the mains voltage space vector of the self-commutated converter as a function of the angular position of the voltage space vector; andselecting, based on the angular position of the mains voltage space vector of the self-commutated converter, associated switching state signals for the self-commutated converter through predetermined optimized pulse patterns.