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Power preparation system of AC power supply equipment, circuit board and power preparation method

A technology for AC power supply and electrical system, applied in battery circuit devices, circuit devices, current collectors, etc., and can solve problems such as low power conversion efficiency

Inactive Publication Date: 2019-03-05
SHANGHAI HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of this application is to provide a backup power system, circuit board and power backup method for AC power supply equipment to solve the technical problem of low power conversion efficiency in the backup power scheme in the prior art

Method used

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  • Power preparation system of AC power supply equipment, circuit board and power preparation method
  • Power preparation system of AC power supply equipment, circuit board and power preparation method
  • Power preparation system of AC power supply equipment, circuit board and power preparation method

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Embodiment Construction

[0034] figure 1 Shown is the connection structure diagram between the AC power supply equipment, the load and the battery in the power grid. When the AC power supply equipment supplies AC power normally, it also charges the battery while supplying power to the load. When the AC power supply equipment stops providing AC power , the battery supplies power to the load.

[0035] Among them, the AC power supply device can be a power supply interface device of the mains power system, such as a blade power supply, to provide DC power for the battery, such as 48V DC power, and provide AC power for the load, such as 220Vac AC power. The load may be various service boards that need to consume electric power, such as a fan, a common building block (Common Building Block, CBB), and the like. The battery can be a device such as a storage battery capable of storing direct current electric energy, and can also output electric energy in the form of direct current to a load for power supply. ...

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PUM

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Abstract

The invention discloses a power preparation system of AC power supply equipment, a circuit board and a power preparation method. The power preparation system comprises an AC converter and a DC power preparation interface, wherein the AC converter is used for receiving an alternating current provided by the AC power supply equipment and converting the alternating current to a first direct current so as to supply power to a load, the DC power preparation interface is connected between an AC converter and a battery and is used for transmitting the first direct current output from the AC converterto the battery so as to charge the battery, the DC power preparation interface is also used for transmitting a second direct current output from the battery to the load so as to supply power to the load when the AC power supply equipment stops providing the alternating current.

Description

technical field [0001] The present application relates to the technical field of backup power control, in particular to a backup power system, a circuit board and a power backup method for AC power supply equipment. Background technique [0002] At present, the AC power supply equipment in the base station usually adopts an uninterruptible power supply (Uninterruptible Power System / Uninterruptible Power Supply, UPS) for power backup. In this scheme, when the mains power is normally supplied, the AC voltage of the mains is rectified and converted into a DC voltage to charge the battery, and when the mains stops supplying power, the DC voltage output by the battery needs to be converted into an AC voltage through an inverter. The voltage can be supplied with power to the load only after the voltage is converted into a suitable DC voltage through AC conversion and buck-boost conversion. [0003] Therefore, due to redundant conversion processes such as inversion in the above so...

Claims

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Application Information

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IPC IPC(8): H02J9/06H02J7/34
CPCH02J7/34H02J9/061
Inventor 罗英坤蓝庆华冯金礼
Owner SHANGHAI HUAWEI TECH CO LTD