How to set initial SOC value in simscape 1RC or 2RC equivalent circuit model (Lithim-Ion-Battery)
19 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
Jassir Chaffai
il 15 Giu 2023
Commentato: Jassir Chaffai
il 19 Lug 2023
From time to time I use the 1RC or 2RC equivalent circuit model from the Simscape toolbox and parameterize it for some of the batteries used in my company.
For many simulations it makes sense to start with a certain initial SOC < 100%, say 80% or 50% for example or to have various diffeernt initial SOC's in a pack. I noticed that this can be set with some newer toolboxes like Simscape Battery.
As for in simscape I'm having a really hard time finding the right place/variable where I can set this value.
My first guess was that Qe_init is the value of choice since it can be multiplied by a charge deficit factor, but some recent simulation results got me wondering as they don't seem to make much sense. In addition, this factor also appears to vary from cell to cell.
0 Commenti
Risposta accettata
Javier Gazzarri
il 16 Lug 2023
Hello Jassir,
You are correct. Qe_init (charge deficit) is where you can set initial SOC. Please take into account that Qe has units of Ah (unlike SOC) and it ranges from 0 (fully charged) to the call's capacity (fully discharged). For example, a 1 Ah cell with a 0.25 Ah initial charge deficit is equivalent to an initial SOC of 75%.
Please let me know if this makes sense and if you need further help.
Javier
Più risposte (0)
Vedere anche
Categorie
Scopri di più su Parameterization Methods in Help Center e File Exchange
Prodotti
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!