Inverter controlled generator set

Details Inverter controlled generator set Inverter controlled generator set

2007-08-14

2007-08-14

R., Julio Gonzalez (Department: 2834)

Prime-mover dynamo plants

Electric control

Engine control

C290S04000F

Reexamination Certificate

active

11508081

ABSTRACT:
An inverter controlled generator set including: a power supply unit that uses a generator driven by an engine as a power supply to output a DC voltage; an inverter device that converts the output voltage of the power supply unit into an AC voltage; and a rotational speed control unit that controls a rotational speed of the engine so as to be kept at a target rotational speed suitable for a load applied to the inverter device, wherein the rotational speed control unit is comprised so that a settling time when the rotational speed of the engine is caused to converge to the target rotational speed in a state where the load is above a set value is longer than a settling time when the rotational speed is caused to converge to the target rotational speed in a state where the load is below the set value, in order to minimize an operation sound of the engine when the load is intermittently driven.

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