Hello All,
i am working on an optimization problem to maximize an objection function in power system load flow MINLP problem using BONMIN solver. Unfortunately the below message appears when the running process is finished:
EXIT : Converged to a point of local infeasibility. Problem may be infeasible.
The solution summary shows :
**** SOLVER STATUS 1 Normal Completion
**** MODEL STATUS 5 Locally Infeasible
**** OBJECTIVE VALUE 2750.2952
I tried to search for any constraints violation, but i couldn't found.
I appreciate if you can help to find out and resolve the infeasibility issue. I am attaching the GAMS file.
Thanks in advance for your cooperation.
What are the cause of the infeasibility ? Topic is solved
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What are the cause of the infeasibility ?
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Last edited by Haithamtaha 3 years ago, edited 1 time in total.
Re: What are the cause of the infeasibility ?
Hi
If I run your model with Bonmin, inspecting the listing files gives me
Searching upwards for INFES gives me, for example,
indicating that these constraints are causing problems.
Take a look at this article on fixing your model.
Cheers
Renger
If I run your model with Bonmin, inspecting the listing files gives me
Code: Select all
**** REPORT SUMMARY : 12 NONOPT ( NOPT)
292 INFEASIBLE (INFES)
SUM 74.671
MAX 1.473
MEAN 0.256
0 UNBOUNDED
0 ERRORS
4830 PROJECTED
Code: Select all
---- EQU eq6
LOWER LEVEL UPPER MARGINAL
8 .t1 . 0.028 . 1000.000 INFES
8 .t2 . 0.003 . 1000.000 INFES
8 .t3 . 6.1595E-4 . 1000.000 INFES
Take a look at this article on fixing your model.
Cheers
Renger
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Enjoy modeling even more: Read my blog on modeling at The lazy economist
Enjoy modeling even more: Read my blog on modeling at The lazy economist
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Re: What are the cause of the infeasibility ?
Thank you very much, i have just seen your reply. i didn't join the forum long time ago