Power supply device and power management method

摘要

A method for managing a number of power supply units (PSUs) of a power supply device is provided. A total operation time of each PSU is counted. A number of the PSUs to be assigned to work is determined according to a load value of a load connected to the power supply device. Which of the PSUs will be assigned to work and which of the PSUs will be assigned to idle are determined according to the total operation time of each PSU and the determined number of the PSUs to be assigned to work. The PSUs to be assigned to work are controlled to enter a work state, and the PSUs to be assigned to idle are controlled to enter a standby mode.

主权项

1. A power supply device comprising:
a plurality of power supply units (PSUs) connected in parallel; and a processing unit comprising:
an operation time counting module to count a total operation time of each of the plurality of PSUs; anda control module to check a load value of a load connected to the power supply device at a preset time interval and determine a number of the PSUs to be assigned to work every a preset time interval according to the load value, determine which of the plurality of the PSUs will be assigned to work and determine which of the plurality of the PSUs will be assigned to idle according to the total operation time of each of the plurality of the PSUs and the determined number of the PSUs to be assigned to work, control the PSUs to be assigned to work to enter a work state, and control the PSUs to be assigned to idle to enter a standby mode, wherein, the total operation time of each of the PSUs to be assigned to work is less than the total operation time of any of the PSUs to be assigned to idle.