Learning Forum

[Vincenzodiba]

Hello,

I'm trying to execute the parameter estimation tool in order to fit the Voc,Rs,R1,C1,R2,C2 lookup tables from experimental data, in the Equivalent Circuit Model for a li-Ion battery module. The program "help" says I have to upload the data for each SOC level of the HPPC test in this form:

SOC 1.0
I   14.6
1.0000e-01    4.2292e+00 
2.0000e-01    4.2292e+00 
...
1.1800e+01    4.1041e+00 
...

[wcao]

Hello,nPlease make sure that the battery will reach to steady state (the voltage no longer changes) in the relaxation period. You just need to leave a very small rest period if LM method is used while you do not need to include the rest period if JH method is used. However, be careful if the steady state can not be reached in your test data. You will need to either use better test data or crop the tail of relaxation time to avoid discrepancy at the bump.nThe charging and discharging data are actually imported separately. There is an option for it. You will need to prepare two sets of HPPC data, one for either charging or discharging, and input them via the option on.nThe SOC level is designated at the rest period before the pulse.nThe time should start at 0s in each HPPC file.nThank you.nn

[Vincenzodiba]

Thank you very much for your help! n

[Arman Burkitbayev]

Hi everyone, 

is there any explanation video for filling up or fitting HPPC data in Parameter Estimation?

I have a data but could not find any useful info website or video about that.

[Arman Burkitbayev]

I have only discharge HPPC data. can I use it for fitting ECM model? without charging data?