Discrepancy in cycling data

[taranjitsinghb]

Hi,
First of all thank you, I have been using SLIDE to simulate degradation data and it has been insightful for our research.
I am using SLIDE in WSL.

I am using the branch SLIDE_v2.
I am only using the following functions in main.cpp (with the default degradation parameter settings and using KokamNMC)

"
estimateOCVparameters();
ProfileAgeing(M, pref, deg, cellType, settings::verbose); // simulates a bunch of drive cycle degradation experiments

"

In degradation.cpp, I only changed the following parameters from default (in ProfileAgeing - see image below) 1 second for the data. I didnt change anything checkup parameters elsewhere.

"

"

After simulating, obtaining results, if I just look at the few discharge cycles data (UDDS 0-100 @ 25), especially current, I integrate them considering nominal capacity, I obtain SoC which seems perfect as below:

However, if I look into whole data, discharge, charge and checkup, I have trouble obtaining SoC, which shows I might have some issues in currents when I integrate them assuming time steps as one seconds. See below, the first 2.5e5 samples.

So my question is, where does this discrepancy comes from ? my assumption of one second ? if yes then what sample time shall I use, or where can I change the sample time for every other entities (checkup, charging) to make sure the SoC is respected.

Or there is something entirely different than onesecond assumption?

Kind regards,
Taranjit

[ElektrikAkar]

Hi Taranjit,

I am sorry for late reply. Thank you very much. This looks interesting, I will have a look and let you know hopefully next week :)

Yours sincerely,
Volkan

[taranjitsinghb]

Hi Taranjit,

I am sorry for late reply. Thank you very much. This looks interesting, I will have a look and let you know hopefully next week :)

Yours sincerely, Volkan

Thanks Volkan,

Regards,
Taranjit

[wjh346]

Hi, First of all thank you, I have been using SLIDE to simulate degradation data and it has been insightful for our research. I am using SLIDE in WSL.

I am using the branch SLIDE_v2. I am only using the following functions in main.cpp (with the default degradation parameter settings and using KokamNMC)

" estimateOCVparameters(); ProfileAgeing(M, pref, deg, cellType, settings::verbose); // simulates a bunch of drive cycle degradation experiments

"

In degradation.cpp, I only changed the following parameters from default (in ProfileAgeing - see image below) 1 second for the data. I didnt change anything checkup parameters elsewhere.

"

"

After simulating, obtaining results, if I just look at the few discharge cycles data (UDDS 0-100 @ 25), especially current, I integrate them considering nominal capacity, I obtain SoC which seems perfect as below:

However, if I look into whole data, discharge, charge and checkup, I have trouble obtaining SoC, which shows I might have some issues in currents when I integrate them assuming time steps as one seconds. See below, the first 2.5e5 samples.

So my question is, where does this discrepancy comes from ? my assumption of one second ? if yes then what sample time shall I use, or where can I change the sample time for every other entities (checkup, charging) to make sure the SoC is respected.

Or there is something entirely different than onesecond assumption?

Kind regards, Taranjit

Hello! I think you are quite skilled in using SLIDE, so I would like to ask you a question. I uncommented the aging mode in main function and added CycleAgeing, why did I report an error that CycleAgeing could not find the identifier