| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an AC power supply system capable of stably supplying power to a load even if a commercial power source is interrupted, and also capable of reducing a contracted power by suppressing a peak power. <P>SOLUTION: This supply system is provided with a commercial power source 10 which supplies a commercial AC power, an AC power source 12 which supplies AC power to a load, an output power meter 14 which measures the AC power supplied to a load 20 from the AC power source 12 and acts as a power measuring means, and a control circuit 16 which takes in an output of the output power meter 14, calculates an average value of the AC power supplied to the load 20, and controls a convertor 120 so that the convertor 120 outputs a DC power corresponding to the average value, and acts as a control means. <P>COPYRIGHT: (C)2003,JPO |
