Hello,
In my view you should not increase the number of allowed warnings – your model gives irrelevant results, you should not
rely on the results.
In the setting menu, I would first try the following (I use the 1st 2 suggestions for all simulations) :
-
Decrease the minimum relaxation factor (setting #1) – let’s say to 0.01
-
Increase the « number of Iterations Before Warning » (setting #10) – sometimes I use up to 1000+ iterations
-
Optimize the order of components in the subsequent tab.
Best wishes,
Charles
Charles MARAGNA
Energy Modelling Engineer
Georesources Division – Geothermal energy and energy storage Unit
3 av. Claude-Guillemin - BP 36009 - 45060 ORLÉANS Cedex 2 - France
Tél : +33 (0)2 38 64 37 51 /
c.maragna@brgm.fr
BRGM – FRENCH GEOLOGICAL SURVEY /
www.brgm.eu
De : Julien Gambade <julien.gambade@univ-ubs.fr>
Envoyé : lundi 5 décembre 2022 14:24
À : trnsys-users@lists.onebuilding.org
Objet : [TRNSYS-users] Convergence problems
Dear Trnsys users,
I have some problem with convergence issues. I am working with a simulation with a duration of several months and a timestep of 5 min.
For several time steps, some inputs do not converge and after a certain time, the amount of warnings exceeds the number of warnings before error.
Two options allowed me to end the simulation : increase the number of warnings allowed and use Type "delayed inputs" (last option results in a change in my outputs).
Do you think the first solution is fine or should I go to the second solution ? Or, does anyone know an other solution I could try ?
Best regards,
--
Julien GAMBADE
Doctorant
Institut de Recherche Dupuy de Lôme (UMR CNRS 6027)
Centre de recherche Christian Huygens
Rue de Saint-Maudé - 56100 Lorient - France
julien.gambade@univ-ubs.fr
www.irdl.fr