SLEEP OF POWER SUPPLY, SLEEP DETERMINATION METHOD AND DEVICE, SLEEP DEVICE

Provided are a hibernation method and device for a power supply, a method and device for determining hibernation of a power supply, and a hibernation apparatus. The hibernation method for the power supply includes: a hibernation device for a power supply selects, according to power supply information of each power supply in a parallel power supply system, one or more power supplies which are to enter a hibernation mode, wherein the power supply information at least includes: an electric energy input type of the power supply and conversion efficiency of the power supply. The method for determining hibernation of the power supply includes: a parallel power supply system determines, according to load information of a load system to which power is supplied, a hibernation mode which one or more power supplies in a parallel power supply system enter, wherein the one or more power supplies are determined according to the power supply information of each power supply in the parallel power supply system, the power supply information at least includes: the electric energy input type of the power supply and the conversion efficiency of the power supply. An overall energy-saving control strategy with low cost and high return on investment is achieved.