How can I speed up my simualtion?

My model consists of various batteries, a central 48V DC Bus with connection to a 380VDC grid and a load which can be imported from workspace.

I need to simulate at least 4 hours but at the actual simulation speed this is not really practicable.

What can or should I change to speed up my simulation or increase the sample step width?

Good to know: I am a Matlab/Simulink beginner

Thank you!

Answer 1

[Javier Gazzarri]

Hello Raphael,

Thank you for sharing this. There are several ways in which you could speed up your simulation. They include:

1. Replacing the individual battery cell blocks with their single-cell scaled equivalent.
2. Changing electronic switching to average mode.
3. Using Accelerator Mode instead of Normal Mode
4. Using a local solver for the Simscape network, with a step size compatible with your switching frequency.

Each of these probably deserve a conversation with Technical Support or an Application Engineer in your area. Please feel free to send me your contact information so I can put you in touch with a MathWorks representative to help you.

Best regards,

Javier

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