LTspice singular matrix error on voltage node

Thread Starter

ChiaraCapretti

Joined Aug 30, 2023
3
Hi everybody,

I'm a beginner with LTspice, so I'm sorry if my question is related to some basic knowledge that I don't know..any help is really appreciate!!

I can't solve a problem with my circuit in LTspice: I have this error "singular matrix check node vout+" and I don't know what to do.

I attached also the .asc file and the control library necessary for the PI controllers.

mycircuit.png
 

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Thread Starter

ChiaraCapretti

Joined Aug 30, 2023
3
Hi!

mmh..what I see in my plot is different:
chart.png
vout+ has to increase because I have 3 controllers which purpose is to bring Vout (vout+ - vout-) = Vout_sp (400V in my case)
 
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