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Modular lithium battery DC power system

A technology for a DC power supply system and a battery management system, which is applied in battery circuit devices, secondary batteries, charge equalization circuits, etc., to achieve the effects of extending service life, increasing capacity, and improving reliability

Active Publication Date: 2016-11-23
BEIJING FANGZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to technical problems in safety, charge and discharge control, etc. during the use of lithium batteries, the power system has not yet adopted lithium batteries as backup power on a large scale.

Method used

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  • Modular lithium battery DC power system
  • Modular lithium battery DC power system

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Embodiment Construction

[0019] In order to clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings.

[0020] Such as Figure 1-2 As shown, a modular lithium battery DC power supply system includes several lithium battery packs. The lithium battery pack 14 includes an explosion-proof box, and a charging module 1 is arranged in the explosion-proof box. One end of the charging module 1 is connected to a lithium battery pack through a wire. 2 is connected to the input terminal, the output terminal of the lithium battery pack 2 is connected to the DC output terminal 3 through a wire passing through the shell of the explosion-proof box, the lithium battery pack 2 is connected to the battery management system 4 located in the explosion-proof box, and the battery management system 4 Connect to the fire extinguishing device 5, the smoke sensor 6, the heater 7, the...

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Abstract

The invention relates to a modular lithium battery DC power system, the system comprises a plurality of lithium battery packs, one of the lithium battery packs comprises an explosion-proof tank, a charging module is arrange in the explosion-proof tank, one end of the charging module is connected with an input end of one lithium battery pack through a wire, the lithium battery group is connected with a battery management system in a explosion-proof case, and the battery management system is separately connected with a fire extinguishing device, a smoke sensor, a heater, a fan, a discharge control unit and a equalization module in the explosion-proof case through wires in sequence; the equalization module is connected with the lithium battery pack through a wire, and the discharge control unit is connected with a DC output end through a wire. According to the invention, the service life is long, the applicable temperature range is wide, the control mode is optimized, the capacity is hardly reduced in maintenance process, the battery packs can perform on-line autonomous equalization, the battery packs can perform off-line autonomous maintenance, the battery packs support hot swap, and the using process is nontoxic and non-polluting.

Description

Technical field: [0001] The invention relates to a modular lithium battery DC power supply system. Background technique: [0002] The DC power supply system of the power industry plant and station shoulders the responsibility of providing safe, stable and reliable power guarantee for relay protection, automation equipment, communication equipment, accident lighting, etc. in the power system, so as to ensure the safe and stable operation of the DC power system is of great significance. For a long time, the DC power supply system of the power system factory station has always used lead-acid battery packs as backup batteries. But there are many deficiencies in this type of power supply system. In order to ensure that the battery has sufficient power at any time, the battery used in the DC power supply of the existing plant needs to face the situation of long-term floating charge. This long-term floating charge will cause passivation reaction of the lead-acid battery and reduc...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/42
CPCH01M10/4207H02J7/0014H02J7/0024Y02E60/10
Inventor 姜志鹏沈照建姜志华张恒
Owner BEIJING FANGZHI TECH CO LTD
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