Bonjour !!!

i am working on a Power diode model, and for now all my simulations are failed.

so i have 2 questions.

1- the output file give le the following message :
Error, simulation stopped at time: 1.77213e-11
Result written to file.
DASSL-- AT CURRENT T (=R1) 500 STEPS
In above message, R1 = .1772132090176E-10
DASSL-- TAKEN ON THIS CALL BEFORE REACHING TOUT
""""

what does it mean ??

2- i am using a pulseVoltage source do i have to code a reel pulse voltage source with a rise time and so on ?? and with the presence of a physical pulse behavior do i reduce the hign non lineare phenomena that induce a non convergence and eventually a simulation failed message ???

3_ just a though do i need to post the code ??


Regards

Hi,

The solver tolerance is set to 1e-10 which is quite hight,
so that might be the reason for the DASSL message.

Use:
simulate(Model, tolerance=1e-4)
or
buildModel(Model, tolerance=1e-4)
and see if this fixes the problem.

Cheers,
Adrian Pop/

Hi ,

I tried your solution, but i does not work also modelica did calculate some extra points but with some results like "NaN".

and the output log is

Error, simulation stopped at time: 1.12801e-09
Result written to file.
DASSL-- AT T (=R1) SOME ELEMENT OF WT
In above message, R1 = .1128008230713E-08
DASSL-- HAS BECOME .LE. 0.0
DASSL-- AT T (=R1) SOME ELEMENT OF WT
In above message, R1 = .1128008230713E-08
DASSL-- HAS BECOME .LE. 0.0
DASSL-- AT T (=R1) SOME ELEMENT OF WT
In above message, R1 = .1128008230713E-08
DASSL-- HAS BECOME .LE. 0.0

regards