tried gurobi solver for opf - error at the start

[angelinasyrri]

Hi! I have installed Gurobi as an additional solver according to the instructions provided in https://pandapower.readthedocs.io/en/develop/opf/powermodels.html#additional-solvers.

When trying to perform the first basic test 'pp.runpm_ac_opf(net, pm_model="ACPPowerModel", pm_solver="gurobi")', I get the following error:

**_File "C:\Users...l\AppData\Local\Temp\ipykernel_1508\1602319788.py", line 1, in <cell line: 1>
pp.runpm_ac_opf(net, pm_model="ACPPowerModel", pm_solver="gurobi")

File "C:\Users...\development\work_env_spyder\lib\site-packages\pandapower\runpm.py", line 134, in runpm_ac_opf
_runpm(net, delete_buffer_file=delete_buffer_file, pm_file_path=pm_file_path, pdm_dev_mode=pdm_dev_mode)

File "C:\Users...\development\work_env_spyder\lib\site-packages\pandapower\opf\run_powermodels.py", line 34, in _runpm
result_pm = _call_pandamodels(buffer_file, net._options["julia_file"], pdm_dev_mode)

File "C:\Users...\development\work_env_spyder\lib\site-packages\pandapower\opf\run_powermodels.py", line 88, in _call_pandamodels
result_pm = Main.eval(julia_file + "(buffer_file)")

File "C:\Users...\development\work_env_spyder\lib\site-packages\julia\core.py", line 621, in eval
ans = self._call(src)

File "C:\Users...\development\work_env_spyder\lib\site-packages\julia\core.py", line 549, in _call
self.check_exception(src)

File "C:\Users...\development\work_env_spyder\lib\site-packages\julia\core.py", line 603, in check_exception
raise JuliaError(u'Exception '{}' occurred while calling julia code:\n{}'

JuliaError: Exception 'UndefVarError: Gurobi not defined' occurred while calling julia code:
run_powermodels_opf(buffer_file)_**

Thanks in advance for the help!

[ZhengLiu1119]

hello angelinasyrri,

I am very sorry for the really late answer. Our colleague who was in charge of PowerModels has been away for serval months, and I took over the tasks only a few weeks ago.

The reason for the error is that "gurobi" is not successfully imported in PandaModels. I will update the version this week, and it should work well with gurobi.

best

zheng

[angelinasyrri]

Thank you very much Zheng!