INVERTER GENERATOR AND CONTROL METHOD OF SUCH GENERATOR Russian patent published in 2011 - IPC H02P9/04 H02K19/16 

FIELD: electricity.

SUBSTANCE: in proposed invention having generator unit driven from internal combustion engine, the throttle gate of which is moved by means of drive actuator, and producing alternating current; converter converting alternating current to direct; inverter converting direct current to alternating, which is equipped with key elements for supply of electric load, there introduced is voltage/current metre to measure voltage and current, which are supplied to electric load; computing device of power factor, which has the possibility of computing the power factor on the basis of measured voltage and current values; evaluation device of load power, which has the possibility of evaluating the load power on the basis of at least measured current value and calculated power factor; and control device of drive actuator, which has the possibility of operation of actuator so that rotation frequency of motor can be equal to the required rotation frequency of motor. The second version includes generator unit driven from internal combustion engine, the throttle gate of which is moved by means of drive actuator, and generating alternating current; converter converting alternating current to direct; inverter converting direct current to alternating, which is equipped with key elements for feed of electric load, in the proposed invention there measured is voltage and current, which are supplied to electric load; power factor is calculated on the basis of measured voltage and current values; evaluation of load power is performed on the basis of measured current value and calculated power factor; required rotation frequency of motor is determined on the basis of obtained evaluation of load power; and drive actuator is controlled by the mechanism so that rotation frequency of motor can be equal to required rotation frequency of motor.

EFFECT: inverter generator allows evaluating power of loads on the basis of load power coefficient and increasing the number of loads to maximum with low power factor, which can be started at connection to output of generator of nominal power; improvement of response at control of rotation frequency of motor.

12 cl, 8 dwg