How to import AC sweep analysis data in to MATLAB

Question

Hello ,

I was looking for a way to tune the PID in MATLAB using the AC sweep data from PLECS. Information on any existing methods or guidelines would be of great help.

Idea is to  use PLECS as the simulation platform and to get the PID tuning values use MATLAB PID tuner.

Note : .csv export from PLECS not supported  by MATLAB PID tuner. 

Thanks

Sreeraj Arole.

Answer 1

The PLECS small signal analysis tools return a set of gain and phase values.  There is no native export from PLECS into a format compatible with Matlab PID tuner.

 

I see this as a more generic problem that is better suited for Mathworks support.  How can one take the gain and phase relationships and then generate a transfer function in the s-domain from that?  Once the transfer function is determined, it can readily be imported into the PID tuner block.  Perhaps the "tfest" function appropriate for this?  Matlab/Octave may have other tools as well.