PROCEDURE OF RELAY CONTROL OVER M-PHASE CONVERTER BUILT ON TWO-OPERATION VALVES Russian patent published in 2002 - IPC

FIELD: electrical engineering. SUBSTANCE: proposed procedure of control is based on switching of two-operation valves of converter at moment of achievement of integral deviation of output emf from preset value of control signal reduced to network input. To obtain frequency bandwidth exceeding frequency of supply network, that is, to achieve technical result of proposal above-mentioned valves should be switched when integral error in voltage control in one of two phases of network participating in modulation is achieved. It is suggested that phases with highest values of emf or phases with momentary values of emf insignificantly differing from given values of control signal are chosen in the capacity of phases of network. EFFECT: obtainment of frequency bandwidth exceeding frequency of supply network. 2 cl, 4 dwg