Efficient and reliable power supply architecture of data center electronic equipment

Abstract

The invention aims at providing a power supply system for electronic equipment and a corresponding frame power supply, wherein the power supply system comprises a back-up type high-voltage direct-current power supply and a frame power supply, the input end of the back-up type high-voltage direct-current power supply is of high-voltage alternating-current input, the output end of the back-up type high-voltage direct-current power supply is of high-voltage direct-current output, and the back-up type high-voltage direct-current power supply comprises a rectifier device used for charging a storage battery; and the frame power supply comprises a first module, a second module and a control switching device, wherein the first module is used for converting the high-voltage alternating-current input into a low-voltage direct-current output, the second module is used for converting the high-voltage direct-current input into a low-voltage direct-current output, output ends of the first module and the second module are connected in parallel together, output through a low-voltage direct-current bus and are used for supplying power for a plurality of electronic equipment, and the control switching device is used for controlling the switching of the first module and the second module and ensuring that the first module supplies power to the plurality of electronic equipment when the high-voltage direct-current power is normal and the second module supplies power to the plurality of electronic equipment when the high-voltage direct-current power is interrupted. Compared with the prior art, the power supply system has the advantages of high efficiency, high reliability and small investment.

Description

technical field [0001] The invention relates to the field of power supply, in particular to a power supply technology for electronic equipment. Background technique [0002] Existing data center servers are generally powered by UPS systems. Data center servers are generally 1U or 2U in structure. Each server is equipped with a power module with AC 220V or DC 48V input. The power module can be configured according to N, N+1 or 2N. Corresponding to the server power input, the front of the server is equipped with UPS power supply equipment or 48V high-frequency switching power supply equipment. [0003] In recent years, in order to improve the reliability and power conversion efficiency of the server power supply system, a high-voltage DC power supply system that replaces UPS or 48V DC power supply with high-voltage DC power supply (such as DC240V) has appeared in China; , At the same time, a new decentralized power supply system that installs the storage battery on the server...

AI Technical Summary

Problems solved by technology

[0009] ③Advantages and disadvantages: The advantage of this system is that it can filter out problems such as peak pulses and overvoltages of the mains power supply, and at the same time ensure that the switching time between the mains power supply and the battery power supply is zero; due to the complex structure of the UPS, and the power supply has undergone two transformations at the same time, so Its disadvantage is low reliability and large loss (generally between 8% and 25%)

[0014] ③Advantages and disadvantages: its advantage is that the system is mature and reliable; its disadvantage is that the system voltage is low, the transmission distance is limited, and the transmission loss is large

[0019] ③Advantages and disadvantages: Its advantage is that it has higher reliability and efficiency than the UPS system; its disadvantages are greater loss than the backup low-voltage DC power supply system, and the configuration capacity of power equipment is large

[0024] ③Advantages and Disadvantages: Its advantage is high system operation efficiency; its disadvantage is that the battery pack is scattered to the computer room, which improves the environmental requirements of the computer room

In this system, the power supply equipment and batteries are distributed and installed in the data room. The main problem is that the battery and the server have different requirements on the environment, especially the lead-acid battery is greatly affected by the environment. Under the circumstances, the installation of lead-acid batteries and servers in the same computer room limits this development trend, so this solution is more suitable for lithium batteries that have lower environmental temperature requirements but higher costs.

[0028] To sum up, in the existing power supply architecture of data center servers, the UPS power supply scheme has low reliability and large loss; the 48V DC power supply scheme has short transmission distance and large transmission loss; the high-voltage DC scheme has moderate reliability and loss; the backup low-voltage The DC power supply scheme has the highest efficiency among the existing schemes, but it has higher requirements on the environment of the computer room

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