Battery cell parameter estimation using pulse charging data
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I want to use a pulse charing data of a lithium ion equivalent circuit model parameter estimation. When I looked through matlab, there is an example titled "Generate parameter data for equivalent circuit batter block", this consist in thee steps :
1-Estimate battery discharge script Example_DischargePulseEstimation.
The only issue is that this model corresponfs to a pulse discharging data.
My question is:
1-Is there any exisiting model that corresponds to pulse discharing data ?
2-Can I "flupud" my charging data and fit in this model rather
Any help will be really appreciated, thanks.
回答 (2 件)
Sabin 2023 年 4 月 4 日
The example you are pointing to is discharging the battery from fully charged to fully discharged. By changing the sign of the pulse current the battery will be charging.
Check out the following example on MATLAB Central:
This example includes parameter estimation of single cell using pulsed discharge experiments.
Alternatively, you can check the Battery Parameter Extraction from Data example in Simscape Electrical where both charging and discharging pulses are used to extract battery parameters. I hope this helps.
Joel Van Sickel 2023 年 4 月 4 日
I believe this process: https://www.mathworks.com/help/autoblks/ug/generate-parameter-data-for-estimations-circuit-battery-block.html#bvmmcj1
also supports pulse charge data. It doesn't support combining charge and discharge cycles, but I believe it should work for purely charge cycles. Flipuing the data wouldn't fix it.
They let you specify if the event is a charge or discharge event.