Power supply system

Abstract

The invention particularly relates to a power supply system. The power supply system comprises one or more high-voltage direct-current systems, one or more photovoltaic power generation systems, one or more energy storage batteries, an alternating-current power supply system and an energy management system, wherein the one or more photovoltaic power generation systems are used for providing electric power for the corresponding high-voltage direct-current systems, the one or more energy storage batteries are used for providing electric power for the corresponding high-voltage direct-current systems and / or receiving electric power from the corresponding high-voltage direct-current systems, the alternating-current power supply system is used for supplying power to one or more high-voltage direct-current systems, the one or more high-voltage direct-current systems are used for providing electric power for the corresponding IT loads, and the energy management system is used for controllingone or more photovoltaic power generation systems, one or more high-voltage direct-current systems, one or more energy storage batteries and an alternating-current power supply system. According to the invention, high-voltage direct current and photovoltaic hybrid power supply is realized, and the power supply system can be used for a large-scale A-level data center.

Description

technical field [0001] The invention particularly relates to power supply systems. Background technique [0002] As the size of data centers continues to increase, their power consumption is also increasing. Huge power capacity has brought enormous pressure to the construction and operation of data centers and the operation of power grids. Data centers are typical high-energy load centers with AC and DC coexistence. The electricity generated by the photovoltaic system is all direct current, and the output of photovoltaic cells is used to supply power to direct current electrical equipment, which can reduce the power conversion link and improve power distribution efficiency. Zhangbei Dataport uses AC-DC hybrid distribution network and flexible substation. The electric energy is generated by the centralized photovoltaic power station, and then transmitted to the flexible substation after being boosted by DC to 10kV. The flexible substation can output DC 750V, AC 380V, DC 10...

AI Technical Summary

Problems solved by technology

[0003] The use of centralized photovoltaic power plants and flexible substations requires the joint participation of power companies, and the construction period is long. For data centers that need to be deployed quickly, it is not conducive to large-scale applications.

The power supply system proposed by patents CN206807028U and CN205646845U cannot meet the requirements of A-level machine rooms in terms of power supply and distribution structure, and requires a large number of energy storage batteries as backup power, which increases construction and operation investment

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