FIELD: electricity.
SUBSTANCE: method of converting circuit operation is proposed, comprising conversion unit (1) with multiple controlled power semiconductor switches, connected at side of AC voltage to AC power circuit (2). Controlled power semiconductor switches are controlled by means of control signal (S), generated from reference voltages (u*Na, u*Nb u*Nc). Formed from periodic coefficient (m(t)) of modulation and periodic angle (θ(t)) of modulation, besides, periodic coefficient (m(t)) and periodic angle (θ(t)) of modulation are formed from d-component (Undp) of Park-Clark conversion of positive sequence of phase voltages, q-component (UNqp) of Park-Clark conversion of positive sequence of phase voltages, d-component (UNqn) of Park-Clark conversion of negative sequence of phase voltages and q-component (UNqn) of Park-Clark conversion of negative sequence of phased voltages.
EFFECT: simple and efficient operation of conversion circuit of reference voltages.
6 cl, 1 dwg
