VECTOR METHOD FOR CONVERTER CONTROL Russian patent published in 2000 - IPC

FIELD: power-generating system control. SUBSTANCE: method used to control systems converting DC and multiphase AC voltage to three-phase supply involves generation of control signals by comparing phase voltages of converter with standard signals generated by regulating system; prior to comparing, phase voltages are converted from three-phase coordinate system into α,β- coordinate system including separation of zero sequence; comparison and regulation are made in α,β- and zero-sequence coordinate system; control signals obtained are supplied to control unit;. Upon regulation, control signals are converted back into three-phase coordinates system and used as modulating signals of converter controlling power switches. EFFECT: improved precision of control, reduced transient time in system due to simultaneous voltage regulation in all phases. 1 dwg