| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an uninterruptible power supply device which improves an input power factor of the whole facility toward unity without a reactive power compensator. <P>SOLUTION: The uninterruptible power supply device with a rectifier (converter) receiving sinusoidal voltages and currents allows variable reactive power inputs. The uninterruptible power supply device allowing variable reactive power inputs compensates the reactive power of a load parallelly connected to the input side of the uninterruptible power supply device and adjusts the input power factor of the whole facility. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
