Hi Ahmad,
The documentation for the
get_soln()<https://matpower.org/docs/ref/matpower7.1/mp-opt-model/lib/@opt_model/get_soln.html>
method is found in Section 5.5.5 of the MP-Opt-Model User’s Manual
(v3.0<https://matpower.org/docs/MP-Opt-Model-manual-3.0.pdf> for MATPOWER 7.1,
but v4.0<https://matpower.org/docs/MP-Opt-Model-manual-4.0.pdf> is the latest).
You can call it anywhere you have access to the solved optimization model
object. For example, you can do something like the following.
1. Solve your case:
r = runopf('case9');
2. Have a look at the resulting optimization model object (shows you details
of each set of vars, constraints, costs):
om = r.om
3. Extract, e.g. non-linear equality (nle) constraints for active power
balance equations:
[g,dg] = om.get_soln('nle', {'g','dg'}, 'Pmis');
4. Extract, e.g. non-linear inequality (nli) constraints for branch flow
constraints at from end of branches:
[h,dh] = om.get_soln('nli', {'h','dh'}, 'Sf');
I hope this answers your questions.
Ray
On Jan 25, 2022, at 4:26 AM, Ahmad Bariq Al Fahri
<[email protected]<mailto:[email protected]>> wrote:
Dear all,
I am trying to obtain the value of g, dg, h, etc from OPF by using get_soln and
placing it in the solve.m script. But, I found an error as shown below:
<image.png>
Error:
<image.png>
Could you help me to show how to use this properly and where should I call this
function, inside a script or somewhere else? Thanks in advance.
Best regards,
Ahmad
Sepuluh Nopember Institute of Technology
