Simulation very slow

Hi... I have a model that i need 2400 for the stop time. Now, i introduce a inverter that transforme simutation very slow... Exist ant thing to change this?

[Jan]

Please post so many details that the problem can be reproduced. What does "I need 2400" mean?

[Nuno]

I create a model and my simulation time is 2400... I need many values and my simulation need a big time of simulation...

After i added a inverter (based in this http://www.mathworks.com/matlabcentral/fileexchange/27459-three-phase-inverter-fed-by-a-boost-converter), but the simulation time is small (0.4). Is i change the simulation tiem to 2400, the simulation is very slow. How i change this?

[Walter Roberson]

Is it fast if you simulate to 2400 without the inverter ?

[Jan]

What does "slow" mean? If it takes several minutes, it is not efficient to wait some hours in this forum for an answer...

[Nuno]

To execute 1 second delay 5/7 minutes... My simulation time is 2400 seconds...

[Walter Roberson]

Is this a question about the speed with and without the inverter? Or is the inverter irrelevant, and the question is really about how to speed up simulations in general ? (If the question is how to speed up your particular simulation, then people are not going to be able to examine that unless you upload your model.)

[Nuno]

The question is about the speed when i put the inverter.

To undestand better, i download this model from MathWorks: http://www.mathworks.com/matlabcentral/fileexchange/27459-three-phase-inverter-fed-by-a-boost-converter...

If you change the simulation time of this model to 2400, you see that is impossible compile because simulation is very slow...

[Walter Roberson]

So to confirm, you feel that the time to simulate to 2400 seconds is acceptable when you remove the inverter step from your model?

[Nuno]

Yes, without Inverter simulate my model is very fast...

If i simule separately the Inveter, for exemple this http://www.mathworks.com/matlabcentral/fileexchange/27459-three-phase-inverter-fed-by-a-boost-converter, it´s impossible increase the simulation time...

Answer 1

[Sabin]

If the inverter is using switching devices this would slow down the simulation because the sample time needs to smaller than the switching frequency. In this situation would be difficult to simulate 2400 seconds. An averaged value inverter would be more appropriate for long simulations.