FIELD: electricity.
SUBSTANCE: control method of autonomous voltage inverter with quasi-resonant commutation, as per which there formed and alternately supplied are control pulses to valves, which form direct and return half-waves of load current; instantaneous current value in diagonal of alternating current of inverter is measured; moment of current in diagonal of alternating current of inverter, which is equal to zero value, is determined; control pulse is supplied and the next valves are activated not earlier than the period when moment of current in diagonal of alternating current of inverter is equal to zero value; rectangular pulses with period of 0.5 T are generated, where T-period of output alternating current, the edge of which specifies the moments of valves cutoff. At that, voltage level and time interval is specified, control pulse is supplied and the next valves are switched on when the specified time interval is over, which is counted from the moment of current equality in diagonal of alternating current of inverter to zero value. Time interval is specified from the condition when the voltage reaches the specified voltage level on the next valves during the specified time interval.
EFFECT: enlarging the application area of autonomous voltage inverter with quasi-resonant commutation.
3 dwg
