A lithium battery balance management system based on hardware-in-the-loop platform

Abstract

The invention discloses a lithium battery balance management system based on a semi-physical platform. The lithium battery balance management system based on the semi-physical platform comprises an external circuit and the semi-physical platform; the external circuit is used for carrying out charging and discharging operations on single lithium batteries in a battery pack; and the semi-physical platform is used for obtaining voltage and temperature when each single lithium battery in the battery pack is in a balanced state and a time needed to reach the balance according to collected voltage,current and temperature of each single lithium battery in the battery pack during charging and discharging so as to realize the balance of the battery pack. According to the lithium battery balance management system based on the semi-physical platform, a model of the lithium battery balance management system can be conveniently and rapidly constructed to finish the design and debugging of the lithium battery balance management system without writing codes; and moreover, modification and local change of model parameters, code generation, downloading and debugging are also very convenient; the time is greatly saved; and the efficiency is greatly enhanced.

Description

technical field [0001] The invention belongs to the field of energy, and more specifically relates to a lithium battery equalization management system based on a semi-physical platform. Background technique [0002] As the power source of a car, batteries must be used in series to meet the voltage requirements. After multiple batteries are used in series for a period of time, the internal resistance and voltage of the batteries will fluctuate, and the state differences of the individual batteries will gradually appear, and the continuous cycle of charging and discharging will intensify. The inconsistency between single cells is eliminated. After the batteries are grouped, when charging and discharging at high power, the battery pack will generate heat and form a certain temperature gradient in the battery module, which will make the ambient temperature of each single battery inconsistent when it is working, which will weaken the consistency between the single cells and reduc...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a lithium battery equalization management system based on a semi-physical platform, thereby solving the problem that the existing battery management system for electric vehicles needs to write a large number of codes, difficult to debug, and local changes It will take weeks or even months to modify the code and retest the technical problems

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