| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a supply voltage to a load from decreasing by performing control so that the target value of an inverter input voltage being inputted to an inverter decreases within a certain range due to the increase in a detected load current. SOLUTION: The engine generator inputs a load current being outputted from an inverter 4 via a filter 5 and a DC voltage being outputted from a rectification circuit 3 to a control device 6, and detects a load current from the inverter 4 by a control device 6 for calculating a target reference voltage value. Then, control is made so that a DC voltage being outputted from the rectification circuit 3, namely the target value of an inverter input voltage being inputted to the inverter 4 decreases as the load current increases, thus preventing the load current from exceeding a prescribed range when the load current is large, and preventing the load current from becoming lower than the prescribed range when the load current is small and hence enabling an inverter input voltage to be within the prescribed range even if the load rapidly increases or decreases.</p> |
