Lithium iron phosphate battery charging equalization board

What is equalization system in lithium iron phosphate battery series?

Working principle That equalization system is able to adjust each cell to be equal can avoid the phenomenon which in-pack cell overcharge or over-discharge occurring. For lithium iron phosphate battery series, data acquisition module collects the real-time data of in-pack cells involved terminal voltage, working current and temperature.

Why does lithium iron phosphate battery voltage change so much?

Lithium iron phosphate battery voltage change dramatically in the end of the charge and discharge, it means that voltage difference is obvious between in- pack cells even if the battery SOC were similar, the voltage-based equalization algorithm is more advantageous to improve the inconsistency of the battery pack at this stage.

Can battery-equalization improve the inconsistency of series-connected lithium iron phosphate batteries?

A battery-equalization scheme is proposed to improve the inconsistency of series-connected lithium iron phosphate batteries. Considering battery characteristics, the segmented hybrid control strategy based on cell voltage and state of charge (SOC) is proposed in this paper.

Is active equalization a good strategy for battery packs?

Therefore, the proposed active equalization strategy also has superior efficiency in real application. To our knowledge, this is the first work to achieve series-connected battery pack active equalization by fusion of data-driven residual capacity online estimation and global optimization-based equalization current calculation.

Can MATLAB/Simulink Support the equalization control scheme of lithium battery pack?

In order to verify the feasibility of the equalization control scheme of the lithium battery pack designed in this paper, the equalization control strategy and the equalization topology are integrated into the MATLAB/Simulink platform for charge–discharge and static testing.

Can a capacity-based active equalization method improve battery inconsistency?

In improving battery inconsistency, Hein et al. provide a capacity-based active equalization method to improve the usable capacity of aging LIBs with minimal equalization effort, but the strategy based on remaining capacity is only applicable when the batteries are in a static state.