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A kind of ups module and ups system

A technology of switching tubes and battery packs, applied in emergency power supply arrangements, electrical components, circuit devices, etc., can solve the problems of large space, high cost, and low work efficiency, and achieve the effects of improving efficiency, reducing losses, and saving costs

Active Publication Date: 2016-12-14
VERTIV CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a UPS module with low cost, small space and high work efficiency in view of the defects of the above-mentioned UPS modules in the prior art, such as high cost, large space and low work efficiency

Method used

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  • A kind of ups module and ups system
  • A kind of ups module and ups system
  • A kind of ups module and ups system

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Embodiment Construction

[0027] Such as figure 2 As shown, the logical structure diagram of Embodiment 1 of the UPS system of the present invention, the UPS system includes a UPS module and a battery pack BAT, wherein the UPS module includes a PFC rectification unit 100, an inverter unit 200, a DC / DC conversion unit 300 and a charging unit 400, wherein the PFC rectification unit 100, the inverter unit 200, the charging unit 400 and the battery pack BAT are connected in sequence, and the DC / DC conversion unit 300 is respectively connected to the battery pack BAT and the PFC rectification unit 100.

[0028] When the AC mains is normal, the AC mains is rectified by the PFC rectifier unit 100 to obtain a DC voltage, and charges the positive and negative DC busbars, and then the inverter unit 200 inverts the DC voltage into an AC voltage to supply power to the load. , the charging unit 400 charges the battery pack BAT. When the AC mains power is abnormal, the DC / DC conversion unit 300 will charge the pos...

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Abstract

The invention discloses a UPS module and a UPS system. The UPS module includes a PFC rectification unit, an inverter unit and a charging unit which are sequentially connected. When the AC mains power is normal, the PFC rectification unit converts the AC mains power into a DC voltage. And charge the positive and negative DC buses, the inverter unit inverts the voltage between the positive and negative DC buses into alternating current, and supplies power to the load, at the same time, the charging unit charges the battery pack, and the UPS module also It includes a DC / DC conversion unit, and when the AC mains is abnormal, the DC / DC conversion unit charges the positive and negative DC bus bars in time-sharing through the PFC rectification unit through the output voltage of the battery pack. The present invention also constructs a UPS system. The implementation of the technical scheme of the present invention does not require an isolation step-up transformer, saves space and cost, conforms to the trend of miniaturization of switching power supplies, reduces losses, and improves efficiency.

Description

technical field [0001] The invention relates to power electronic technology, in particular to a UPS module and a UPS system. Background technique [0002] UPS (Uninterruptible Power Supply, uninterruptible power supply) is widely used in many industries such as electric power, telecommunications, finance, government, manufacturing, etc. It can guarantee to continue working for a period of time after a power outage, so that users will not affect their work or lose data due to power outages. It can also eliminate "power pollution" such as power surges on the mains, momentary high voltage, momentary low voltage, wire noise and frequency deviation. [0003] At present, in the design of small and medium power UPS systems, such as figure 1 As shown, the UPS system includes a battery pack (the two ports of which are BAT+ and BAT-) and a UPS module, and the UPS module includes a PFC rectification unit 100, an inverter unit 200, a charging unit (not shown) and a DC / DC conversion uni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J9/04
Inventor 肖学礼陈宗辉沈宝山
Owner VERTIV CORP