Power battery equalization management system and method

A technology of balance management and power battery, which is applied in the direction of charge balance circuit, secondary battery, battery circuit device, etc., can solve the problems such as difficult to adapt to the working conditions, achieve good adaptability and data migration, and achieve the effect of balance management

Active Publication Date: 2019-12-03
BEIHANG UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, it is difficult for the traditional balance management to update the control strategy in real time to match the real-time changes in the battery cell capacity, and it is difficult to adapt to the actual working conditions

Method used

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  • Power battery equalization management system and method
  • Power battery equalization management system and method
  • Power battery equalization management system and method

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Embodiment Construction

[0034] In order to understand the content of the present invention more clearly, it will be described in detail with reference to the drawings and embodiments.

[0035] Such as figure 1 Shown is a schematic diagram of the principle of the power battery balance management system. The system consists of a physical battery module, a digital battery module, a digital twin module, and a cloud analysis module. The physical battery module and the digital battery module communicate with the digital twin through wired or wireless methods The data transmission of the module enables the digital twin module to receive and couple the basic data transmitted by the physical battery module and the digital battery module, and based on the basic data to identify system parameters, estimate and calibrate the real-time status, and perform performance evolution on the system, obtain the digital twin data and convert the basic The data and digital twin data are sent to the cloud analysis module thr...

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Abstract

The invention relates to a power battery equalization management system and method. A power battery equalization management system based on cloud control is established by using a digital twinning technology; and meanwhile, the actual operation data and the simulated operation data are collected for analysis and calculation, so that the inconsistency of the current battery system can be effectively weakened, the disturbance of the inconsistency of the future battery system can be reduced, and the aims of managing the inconsistency of the electric quantity of the power battery and controlling the development direction of the future inconsistency are achieved.

Description

technical field [0001] The invention relates to the technical field of power battery management, in particular to a power battery balance management system and method. Background technique [0002] Electric vehicles usually use lithium-ion batteries as energy storage components, and single batteries are combined in series and parallel to form a power battery pack to provide energy for driving motors and other high-voltage electrical systems. There are differences in internal materials and fine structures of batteries when they leave the factory, resulting in inconsistencies in voltage, capacity, and internal resistance among single batteries. This inconsistency will affect the charge and discharge rate of the battery and the self-discharge rate during the static state during the charge and discharge cycle of the battery pack, leading to the gradual expansion of the inconsistency between the batteries, which not only accelerates the aging process of the battery, but also caus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H02J7/00
CPCH01M10/4207H01M2010/4271H01M2010/4278H02J7/0014Y02E60/10
Inventor 杨世春周新岸华旸周思达郭斌闫啸宇
Owner BEIHANG UNIV
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