Patent ID: 8766603

Claim:
A control apparatus for an inverter generator having first, second and third windings wound around an alternator driven by an engine, and first, second and third inverters each connected to the first, second and third windings respectively and adapted to convert alternating current outputted from the first, second and third windings into direct current by driving switching elements for direct current conversion and to invert the converted direct current into single-phase alternating current in a desired frequency by driving the switching elements for alternating current conversion so as to supply the inverted alternating current to an electric load, comprising: an actuator adapted to open and close a throttle valve of the engine; a power detector adapted to detect output powers of the first, second and third inverters; and an actuator controller adapted to determine a target engine speed of the engine based on the detected output powers of the first, second and third inverters and to control an operation of the actuator such that a speed of the engine converges at the determined target engine speed.