Is there some documentation to model the thermal port on a custom battery block?

There is not much to refer from when creating custom blocks on matlab. I'm currently building a custom battery block but I'm not able to implement the the thermal port. Is there some code that I can refer to?

Aditionally, repeatedly I get an error which says the number of variables are more that the number of equations or vice versa when I try to fix it. I do not have any redundant equations or variable in my code. So how can this be fixed?

Answer 1

[Javier Gazzarri]

Hello Namratha,

We offer a battery block in Simscape Battery and Simscape Electrical which do contain a thermal port. This block should meet most needs for battery cell modeling.

If you do wish to create a custom one out of Simscape blocks, you may want to add a thermal mass to the block, connect a controlled heat flow source to it, and feed if with the heat dissipation over the internal resistanced. Then, you can connect a physical connection port from the thermal mass to link the cell thermally to its surroundings.

Hope this helps,

Javier