UNINTERRUPTIBLE POWER SUPPLY SYSTEM, UNINTERRUPTIBLE POWER SUPPLY, UNINTERRUPTIBLE POWER SUPPLY CONTROL PROGRAM AND UNINTERRUPTIBLE POWER SUPPLY CONTROL METHOD

摘要

To provide an uninterruptible power supply system in which deterioration of a refrigeration part is detected in early stage, by extracting generation sound of the refrigeration part accurately, and to provide an uninterruptible power supply, an uninterruptible power supply control program, and an uninterruptible power supply control method.SOLUTION: An uninterruptible power supply system includes a power supply unit 20 having an A/D conversion part 21 performing A/D conversion of a supplied AC power, an accumulator battery 22 for charging the DC power supplied from the A/D conversion part 21, and discharging DC power, a D/A conversion part 23 performing D/A conversion of the DC power discharged from the accumulator battery 22, and outputting AC power, and a refrigeration part 28 for cooling at least one of the A/D conversion part 21 and the D/A conversion part 23, a detector 4 for detecting operation sound of the power supply unit 20, and a control section 3 controlling the timing when the detector 4 detects the operation sound, and extracting the generation sound of the refrigeration part 28. Furthermore, a determination part for determining deterioration of the refrigeration part 28, on the basis of the generation sound of the refrigeration part 28, extracted by the control section 3, is provided.SELECTED DRAWING: Figure 2