Hello,

yes, please provide the model you used, we can't help
without an example that causes the issue.

so long.
Willi

Hi,

I'm having the same error so I will continue on this thread:

[:0:0-0:0] Error: Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed!

I'm trying to model the comand law for a UAV using Modelica and OMEDIT.

Files

To reproduce the error, load:
-DroneAxeSystem01
-drone02
-PID02
-Test05

then run Test05. the error should apear.

Plus, some additional indications are given by the consol but it's to long to copy here.

After a good night, I redo my model and error vanished...

I'don't know what it comes from, but for me it's case solved.

i am simulating a model of combined cycle power plant,the simulation is running but it generates no output,it gives the following warning:
LOG_NLS_V | warning | <p>Warning: maximal number of iteration reached but no root found</p>
stdout | warning | <p>While solving non-linear system an assertion failed during initialization.</p>
LOG_UTIL | warning | <p>solver will try to handle division by zero at time 0: stodolaTurbine1.proe.x * stodolaTurbine1.Te * stodolaTurbine1.Cst</p>

what can be the problem?how can i fix it?

steam-turbine.mo

steam-turbine.mo

Has anyone found any success overcoming this error for their code? I also recently ran into this error when trying to simulate a Rankine Cycle model on OpenModelica. The model generates two both

 [ThermoPower.Water: 5880:7-5880:56]: Model is structurally singular, error found sorting equations  

&

 Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed! 

errors and I'm having difficulty trouble shooting these.

Thanks in advance!

hi,
i have the same error msg ,i wasasking if you found a solution for this bug