Simulation speed reduction due to Control / Discrete blocks

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1

Dear all,

I noticed that the same simulation pass from 2s simulation to 25sec when I let PLECS calculate the Discrete mean value and the discrete RMS, is it possible that?

How can I improve it?

Attached the files

bst_UV2W_IPmod_noBlocks.plecs (86.8 KB)

bst_UV2W_IPmod_mitBlocks.plecs (88.8 KB)

2

Hi.

The blocks mentioned do consume a lot of time for computation when “sample time” is too low and/or “Number of samples” is too high. Try adjusting them and I feel that it is the compromise between “accuracy” and “time”.

Bhavani.

3

Hello,

The additional discrete states can slow down the simulation. We are addressing this in our next release with variable step/continuous RMS and THD blocks that will not cause the simulation speed issue.

Thank you,

Kris

4

thanks for the answer and for the support of @lino_capponi

5

there is a bug in the RMS block you sent to me, the reason is not clear be seems something with the initial buffer

6

Hello, can you please continue your email discussion with Lino about this?

Thank you,

Kris