Clear Filters
Clear Filters

Simscape Battery model extension

52 views (last 30 days)
yoi
yoi on 8 Oct 2024 at 3:30
Commented: yoi on 8 Oct 2024 at 11:11
I am currently using simscape's Battery (Table-Based) element.
I want to make R0(SOC,T) parameter as R0(SOC,T,C-rate) so that R0 also depends on C-rate.
Could you please let me know if there is a way to extend this with this block?

Answers (1)

Govind KM
Govind KM on 8 Oct 2024 at 4:17
Edited: Govind KM on 8 Oct 2024 at 4:19
Hi yoi,
From what I understand, you wish to set the Terminal Resistance (R0) parameter of the Simscape Battery (Table-Based) block such that it depends on C-rate along with State-of-charge values (SOC) and Temperature (T). Although this cannot be achieved directly, a workaround is to
  • Define the C-rate parameter as a variable in the model callbacks or in the base workspace.
  • The R0 parameter can then be set as a mathematical expression involving the (SOC,T) lookup table and the C-rate variable, programatically or in the block parameters.
  • For example, assuming a direct multiplicative relationship, the R0 parameter can be set programatically through set_param as
%Change myModel to the name of your model
set_param('myModel/Battery (Table-Based)','R0_mat','R_lookup*cRate'); %Assuming cRate is a constant
More details on setting parameter values as variables or expressions can be found in the following documentation:
Hope this is helpful!
  1 Comment
yoi
yoi on 8 Oct 2024 at 11:11
Hi Govind
Thank you for your answer.
I believe SoC, T and C-Rate are changing values from time to time during the simulation. If these physical parameters could be obtained using sensor circuits, etc., how should they be reflected as dynamic in the element parameters(R0 parameter in Battery (Table-Based))?

Sign in to comment.

Products


Release

R2023b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!