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Uninterruptable power supply management system of lithium battery

A power management system, lithium battery technology, applied in battery circuit devices, secondary battery repair/maintenance, electrical measurement, etc., can solve the problems of high cost of BMS, complex use of series and parallel, etc., to achieve small size, cost saving, avoid The effect of hardware redundancy

Inactive Publication Date: 2016-05-04
DONGGUAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the power increases, the series-parallel connection of lithium batteries becomes complicated accordingly, and the number of current acquisition devices and switch control devices also increases with the increase of power, which also makes the cost of BMS higher

Method used

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  • Uninterruptable power supply management system of lithium battery
  • Uninterruptable power supply management system of lithium battery
  • Uninterruptable power supply management system of lithium battery

Examples

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Embodiment Construction

[0016] The principles and features of the present invention will be described in detail below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0017] figure 2 It is a structural schematic diagram of the lithium battery uninterruptible power supply management system of the present invention, wherein the voltage sampling and balancing unit is used to obtain the output voltage of each lithium battery, the current sampling and monitoring unit is used to obtain the output current of the lithium battery, and the temperature detection unit is used for Obtain the working temperature of the lithium battery, and send the obtained voltage, current, and temperature information to the central control unit (MCU) of the UPS system. The central control unit judges the state of the lithium battery according to the detected temperature, current, and voltage pa...

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Abstract

The invention relates to an uninterruptable power supply management system of a lithium battery. The uninterruptable power supply management system comprises a DC / DC converter, a central control unit, a temperature detection unit, a current sampling monitoring unit and a voltage sampling balance unit, wherein the temperature detection unit, the current sampling monitoring unit and the voltage sampling balance unit are respectively used for detecting temperature, current and voltage of the lithium battery and sending the detected temperature, current and voltage parameters to the central control unit, the central control unit is used for judging the state of the lithium battery according to the detected temperature, current and voltage parameters and controlling on / off of a lithium battery protection circuit through the DC / DC converter according to state information of the lithium battery, and the uninterruptable power supply management system is characterized by being directly used for acquiring temperature, current and voltage information of the battery and switching on / off the lithium battery protection circuit. By the system, all acquisition units and control units are integrated into an uninterruptable power supply (UPS), the optimal resource configuration is achieved, the hardware redundancy is avoided, and the cost is saved.

Description

technical field [0001] The invention relates to a power management system, in particular to a lithium battery uninterrupted power management system. Background technique [0002] At present, all walks of life have higher and higher requirements for system stability. For large data centers, there are generally multiple UPS (Uninterruptable Power Supply, uninterruptible power supply) system redundant power supply to ensure the stability of system power supply. At present, in the UPS industry, most models use maintenance-free lead-acid batteries. Lead-acid batteries have been widely used in the power supply industry due to their advantages of stability and low cost. However, lead-acid batteries also have defects such as low energy density, large weight and volume, short maintenance cycle, and especially environmental pollution. As the country pays more and more attention to green energy, emerging lithium battery energy has the potential to replace lead-acid batteries. Become ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/42H02H7/18G01R31/36
CPCG01R31/36H01M10/42H02H7/18H02J7/00Y02E60/10
Inventor 程志毓邱永福廖志伟林青雷张华山
Owner DONGGUAN UNIV OF TECH
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