How can I link Plecs inverter with Simulink load ?

Question

Hi everyone.

I'll try to explain my problem.

I have a non-linear load in Simulink (modelled by differenzial equation) that it must be powered by an inverter (built into a Plecs subsystem).

Now the problem is: how can I interface the two systems? I tried to add three electrical port (one per phase) in the Plecs circuit, then I connected my load to the Plecs block. The simulation starts and I can measure the voltages but only into the Plecs circuit! Outside the Plecs block, in Simulink, I see zero voltage and current!

What is the problem? Where I'm doing wrong?

To be clear, I've attached two screenshot.

Thanks!

Answer 1

Please see the documentation of the Electrical Port block:

"In PLECS Blockset, if an Electrical Port is placed in a top-level schematic, the PLECS Circuit block in the Simulink model will show a corresponding electrical terminal, which may be connected with other electrical terminals of the same or a different PLECS Circuit block."

You cannot create physical connections between PLECS and other physical modeling tools. This is technically impossible.

Comments

I had read the documentation...badly. :)

Thank you very much for the reply.