Battery management method and system applicable to echelon battery

Abstract

The invention discloses a battery management method and system applicable to an echelon battery. The method comprises the steps of performing monitoring treatment on one group of parallel single batteries through a slave, wherein the monitoring treatment comprises the steps of monitoring the voltage and temperature of the batteries, monitoring the current distribution of each parallel branch and performing dissipation type balance on one group of parallel single batteries; and determining the state of a whole battery pack through a host according to the monitoring treatment result of the single battery group, wherein the system comprises a storage and a processor. By virtue of the method, management on each single battery in the battery pack is realized; in addition, each slave only manages one group of parallel single batteries; when one battery is damaged and needs to be replaced, only the corresponding slave is processed, so that maintenance complexity is greatly lowered, and high efficiency is achieved; and in addition, the battery pack has diversified battery types, so that the system can be applicable to the echelon battery, is high in practicability, and can be widely applied to the fields of battery monitoring and control.

Description

technical field [0001] The invention relates to the field of battery monitoring and control, in particular to a battery management method and system suitable for cascade batteries. Background technique [0002] When the existing battery management system manages the reused decommissioned batteries, there are the following disadvantages: [0003] 1) The existing battery management system manages all parallel batteries in the battery pack as a whole, and cannot detect the current distribution of each battery, so it cannot truly manage each single battery in the battery pack; [0004] 2) The existing battery management system generally adopts a centralized design method, that is, one host manages multiple slaves, and one slave manages multiple sets of batteries. When a battery is damaged and needs to be replaced, it may cause the entire slave or even the host to be damaged. damage, high maintenance complexity and low efficiency; [0005] 3) The existing battery management sys...

AI Technical Summary

Problems solved by technology

[0003] 1) The existing battery management system manages all parallel batteries in the battery pack as a whole, and cannot detect the current distribution of each battery, so it cannot truly manage each single battery in the battery pack;

[0004] 2) The existing battery management system generally adopts a centralized design method, that is, one host manages multiple slaves, and one slave manages multiple sets of batteries. When a battery is damaged and needs to be replaced, it may cause the entire slave or even the host to be damaged. damage, high maintenance complexity and low efficiency;

[0005] 3) The existing battery management system has high requirements on the consistency of batteries in the battery pack, and does not support the mixed use of multiple types of echelon batteries, which is not practical enough

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