Пристрій для автоматичного симетрування струмів та напруг трифазної системи

Abstract

A device for automatic balancing of current and voltage of a three-phase system is used in a power-supply system for nonsymmetrical consumers. The device comprising a three-phase source and a three-phase load, a balancing unit, a phase current-to-phase voltage constant multiplier, three phase voltage constant multipliers, first and second commutators, a single-chip microcontroller, a balancing unit, a phase voltage constant multiplier; in addition, two power converters, an integrator, a power filter, pulse-phase control and communication system are incorporated that provides high speed of information receiving as to current and voltage information obtaining due to use of active and reactive component of pulsed power , which characterize the non-symmetry of three-phase system according to a reverse sequence, which are determined in sliding time interval having ( ) period length with the use of the orthogonal coordinate system( , ). The invention allows the increase of speed of the balancing.