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Active and passive equalization adaptive switching method, system and device for battery management unit

A battery management unit, adaptive switching technology, applied in battery circuit devices, circuit devices, charge equalization circuits, etc., to achieve good application prospects, prolong service life, and reduce the number of charging and discharging times.

Active Publication Date: 2020-09-11
NANJING GUODIAN NANZI POWER GRID AUTOMATION CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method, system and device for active-passive balancing and self-adaptive switching of battery management units, which solves the problems disclosed in the background technology

Method used

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  • Active and passive equalization adaptive switching method, system and device for battery management unit
  • Active and passive equalization adaptive switching method, system and device for battery management unit
  • Active and passive equalization adaptive switching method, system and device for battery management unit

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0035] Such as figure 1 As shown, the active-passive balance adaptive switching method of the battery management unit includes the battery cluster management unit side method and the battery subrack management unit side method.

[0036] The method on the battery cluster management unit side is as follows:

[0037] 1) Receive the charging and discharging current, battery voltage and battery temperature of each battery circuit collected by the power management chip in the battery subrack management unit.

[0038] The power management chip will periodically collect the charging and discharging current, battery voltage and battery temperature of each battery circuit under its jurisdiction, and tra...

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Abstract

The invention discloses an active and passive equalization adaptive switching method, system and device for a battery management unit. According to different working states, active equalization and passive equalization are dynamically switched, powerful guarantee is provided for performance and safety of the lithium battery, safe and stable operation of the lithium battery is guaranteed, and therefore the overall reliability and use efficiency of the energy storage battery system are further improved.

Description

technical field [0001] The invention relates to a method, system and device for active-passive balancing and self-adaptive switching of a battery management unit, and belongs to the field of battery management systems of energy storage power stations. Background technique [0002] With the continuous development of the world's power system and the increase in power demand, the research on energy storage technology in countries around the world has become more in-depth. Lithium battery energy storage is a fast-growing energy storage technology today. With the safety of lithium-ion batteries being improved Further improvement, the energy conversion efficiency of the battery is further improved, and the conditions for the application of lithium battery energy storage technology in power station energy storage are becoming more and more mature. [0003] At present, electrochemical energy storage power stations mainly use ternary batteries and lithium iron phosphate batteries. Es...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J3/32H01M10/42H01M10/44
CPCH01M10/4257H01M10/441H01M2010/4271H01M2010/4278H02J3/32H02J7/0014H02J7/0016H02J7/00302H02J7/00306H02J7/007182H02J7/007194Y02E60/10
Inventor 赵谦查晓锐陈福锋常晓勇
Owner NANJING GUODIAN NANZI POWER GRID AUTOMATION CO LTD
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