| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inexpensive uninterruptible power supply having a long-period backup function and a function capable of accommodating regenerative electric power from a load. <P>SOLUTION: Power storage means 19 provided in an uninterruptible power supply 10 includes: a first energy storage element 22; a second energy storage element 24 which is connected via a second power converter 23 with the first energy storage element 22 in parallel and accommodates regenerative electric power; current detection means 25 which detects an electric current running through the storage means; and second control means 27 which controls the second power converter 23 based on a detected current from the current detection means 25. <P>COPYRIGHT: (C)2012,JPO&INPIT |
