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Hi
I have a question related to the optimization process in my project.
My project's challenge involves minimizing the Operation Cost (OC), which is mapped in a matrix where OC depends on three variables (V, C, B). I’ve used the interpolation component (Type 581) to interpolate OC for any input values (Type 14), and the interpolation itself works correctly.
However, when I attempt to use the TRNOPT component for optimization, I receive an error (simulation program did not return an error stream). The TRNOPT component works fine with other examples (like a solar collector), so the issue seems specific to the interpolation component (Type 581)
I would be very grateful for any advice you could provide to help resolve this issue.
There are a few possibilities. The first thing I would suggest is making sure you have used complete filepaths (e.g. C:\\TRNSYS18\MyProjects\Project1\datafile.dat') and not relative filepaths (e.g. 'datafile.dat') for the Type 581 data file and any other data files in your project. GenOpt copies files to new locations as part of its processing, and in doing so the relative filepaths become invalid. See this forum post: TRNOpt - error reading external data files
If that doesn't solve the problem, you can also try checking your TRNOpt settings, your version of GenOpt, and/or the installation directory of TRNOpt and/or GenOpt. See David's further suggestions in the comments on this post: TRNOpt - the program could not find all the files
Finally, if GenOpt was able to launch at least one TRNSYS simulation, you can check the .lst file of the simulation(s) for more information about the failure. The TRNSYS files associated with each run GenOpt starts are saved in .\Trnsys18\Optimization\GenOpt\Simulation\tmp-genopt-run-X (the naming convention may vary slightly with your version). (Scroll to the bottom of the .lst file to read the error message that killed the simulation).
