Multiple-input-multiple-output power supply device and integrated cabinet

Abstract

The embodiment of the invention provides a multiple-input-multiple-output power supply device and an integrated cabinet. The device comprises a power conversion unit, an output power distribution unitand a monitoring unit, the power conversion unit is used for converting a plurality of input power supplies into preset direct-current voltage and converging the preset direct-current voltage to thedirect-current bus; the output power distribution unit is used for taking power from the direct-current bus and distributing power according to different loads; and the monitoring unit is used for managing, controlling and scheduling each module of the power conversion unit and the output power distribution unit. According to the multiple-input-multiple-output power supply device and the integrated cabinet provided by the embodiment of the invention, the multiple input power supplies are converted into the preset direct-current voltage and converged to the direct-current bus, power distribution output is carried out according to different loads, new and old system parallel operation application is supported, and a machine room-level intelligent microgrid is realized; the problems of insufficient station power supply capacity and the like can be quickly solved, the expansion construction cost of the power supply system is reduced, and repeated construction of multiple power supply systems is avoided.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of power supplies, and in particular to a multi-input multi-output power supply device and an integrated cabinet. Background technique [0002] It is expected that 5G networks will be commercially available on a large scale in 2020. From the perspective of 5G test network engineering construction, the network architecture of 5G base station side will evolve from the BBU and RRU two-level structure of 4G / LTE to the three-level structure of CU, DU and AAU. In terms of power supply, the maximum power consumption of 5G base station equipment is about 4G 2 to 3 times the power consumption of base station equipment. Facing the structural changes and high power consumption requirements of 5G base station equipment (CU, DU, AAU), it will bring great challenges to the construction of 5G base stations. The construction of 5G networks based on existing network base stations mainly faces the probl...

AI Technical Summary

Problems solved by technology

[0003] For stations with insufficient mains capacity, the application and construction time for mains capacity increase is long (generally 3 to 6 months), and some densely populated urban sites cannot carry out the construction of mains capacity increase projects due to the limited overall capacity of the power grid and difficulties in laying lines;

[0004] For sites with insufficient DC power supply capacity, there are insufficient expansion slots for rectifier modules or the shutdown of rectifier modules of the same type, resulting in the inability to expand the system. The entire DC power supply system needs to be replaced, affecting the normal operation of communication equipment on the existing network, and at the same time causing assets for existing power equipment. Waste, increase construction cost;

[0005] For sites with insufficient backup time, the main problem is that the space or load capacity of the computer room is insufficient, and the battery pack cannot be expanded or replaced, which affects the reliability of power supply and increases the cost of operation and maintenance support;

[0006] For long-distance (greater than 100 meters) outdoor high-power consumption equipment (such as: AAU) power supply sites, indoor -48V DC power supply is used, the loss of power supply lines is large, and the low terminal voltage causes communication equipment to fail to work normally. A separate set of liters is required. Voltage equipment, the output power supply voltage is adjusted according to the power supply distance, which cannot be matched with the existing power supply management, which has a certain impact on the reliability of power supply and increases the cost of construction operation and maintenance;

[0007] For sites powered by new energy sources, multiple sets of power systems work independently, unable to achieve coordinated and unified management, resulting in low energy usage and heavy maintenance workload

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