Thread Subject: simscape simulation time extremely slow

Greetings,

I have created a buck Dc\Dc converter using Simscape. The problem is that the simulation time is extremely slow. I have changed the solver to Ode15s but its still too slow. What do I have to change in order to have a faster simulation?
thank you very much.
Vangelis

"Evangelos " <cybermpazo@hotmail.com> wrote in message <hn33ul$bq4$1@fred.mathworks.com>...
> Greetings,
>
> I have created a buck Dc\Dc converter using Simscape. The problem is that the simulation time is extremely slow. I have changed the solver to Ode15s but its still too slow. What do I have to change in order to have a faster simulation?
> thank you very much.
> Vangelis

It's impossible to say without seeing the model. Did you use the Simscape language to create your DC/DC converter model? If so, can you post your code? Maybe you can also share your model on a filesharing web site so that we can have a look at it.

HTH,

Arnaud

As it was said above it is not easy to say anything without look at the code. But what I can suggest you can do:

1) Try to change solver to ode23t what is recommended for Simscape.
2) Try to solve it by using rapid acceleration.
3) If it is possible try to do it for fix-step solver or implicit solver. It is much faster. It was in my case.

Regards,
Kamil

"Evangelos " <cybermpazo@hotmail.com> wrote in message <hn33ul$bq4$1@fred.mathworks.com>...
> Greetings,
>
> I have created a buck Dc\Dc converter using Simscape. The problem is that the simulation time is extremely slow. I have changed the solver to Ode15s but its still too slow. What do I have to change in order to have a faster simulation?
> thank you very much.
> Vangelis