Power supply device, power supply system and method

Abstract

The invention provides a power supply device, a power supply system and a method. The power supply device comprises a voltage conversion group, a management unit and a standby power supply unit, wherein the voltage conversion group comprises at least two voltage suppliers; the voltage suppliers receive externally input first voltage, convert the first voltage into power supply voltage and supply various peripheral servers and cooling systems with electricity; the management unit is used for setting a first threshold and a second threshold and detecting the power supply voltage of the voltage conversion group and the number of the voltage suppliers for power supply; when the power supply voltage is smaller than the first threshold is detected, a first switching instruction is transmitted to the standby power supply unit; when the number of the voltage suppliers for power supply reaches the second threshold is detected, a second switching instruction is transmitted to the standby power supply unit; and the standby power supply unit supplies various peripheral servers and cooling systems with the electricity when receiving the first switching instruction and stops power supply when receiving the second switching instruction. By the power supply device, the power supply system and the method, continuous and stable operation of the servers and the cooling systems in a cabinet can be ensured.

Description

technical field [0001] The invention relates to the technical field of computer applications, in particular to a power supply device, a power supply system and a method. Background technique [0002] A data center is a set of complex facilities that can accommodate multiple servers and cooling systems (multiple servers and cooling systems are installed in a cabinet), communication equipment, IT equipment and other equipment. Data centers occupy a special position in network applications, and have high requirements for the security, continuity, and reliability of power supply systems. [0003] In order to ensure the uninterrupted operation of the data center and prevent data loss, the power supply + redundant power supply is currently used for redundant power supply. The power supply process is as follows. The power supply first supplies power to each server and cooling system through the voltage conversion group PSU. When the power supply In case of abnormality, the redunda...

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Problems solved by technology

[0003] In order to ensure the uninterrupted operation of the data center and prevent data loss, the power supply + redundant power supply is currently used for redundant power supply. The power supply process is as follows. The power supply first supplies power to each server and cooling system through the voltage conversion group PSU. When the power supply In case of abnormality, the redundant power supply starts to start, and supplies power to each server and cooling system through the PSU of the voltage conversion group. There is a time difference between the power supply stop and the redundant power supply starting, and this time difference often causes the power supply of the voltage conversion group PSU to be insufficient. In addition, During the start-up process of the redundant power supply, each voltage supplier in the voltage conversion group PSU starts up sequentially. When the number of voltage suppliers started is insufficient, the power supply will also be insufficient. For example: the voltage conversion group PSU consists of 4+4 or 4+2 Therefore, in the normal operation of the cabinet, four voltage suppliers in the PSU of the voltage conversion group need to supply power at the same time, and during the startup process of the redundant power supply, there will be one or less than 4 voltage suppliers in the PSU of the voltage conversion group. If the voltage supply is started first, the above-mentioned insufficient power supply will cause the server and cooling system to be interrupted

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