Timeline for How to deal with optimal power flow problem in MATLAB?
Current License: CC BY-SA 4.0
26 events
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Sep 10, 2019 at 15:31 | vote | accept | Masan | ||
Aug 22, 2019 at 2:02 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
Apr 21, 2019 at 0:03 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
S Mar 20, 2019 at 17:00 | history | edited | Voltage Spike♦ | CC BY-SA 4.0 |
make the question title reflect what is being asked
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S Mar 20, 2019 at 17:00 | history | suggested | xuva | CC BY-SA 4.0 |
make the question title reflect what is being asked
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Mar 19, 2019 at 22:50 | review | Suggested edits | |||
S Mar 20, 2019 at 17:00 | |||||
Mar 19, 2019 at 22:49 | answer | added | xuva | timeline score: 1 | |
Oct 18, 2017 at 1:07 | history | protected | CommunityBot | ||
Sep 5, 2017 at 18:58 | history | edited | Kevin Reid |
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Jul 2, 2016 at 1:53 | history | tweeted | twitter.com/StackElectronix/status/749058313204236289 | ||
S Jun 3, 2015 at 10:23 | history | suggested | Bence Kaulics |
added new tag
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Jun 3, 2015 at 8:15 | review | Suggested edits | |||
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May 7, 2015 at 12:02 | comment | added | Masan | Thanks @AdeelSabir I have done that already, but it doesn't work. I guess I script the constraint wrong. But I don't know how to check it. | |
May 7, 2015 at 11:45 | comment | added | Adeel | @Jamaisavenir My point being, your can try a different solver for your nonlinear constrained optimization, in MATLAB platform. YALMIP allows you to use many solvers. | |
May 7, 2015 at 11:14 | comment | added | Masan | Thanks for your comment. But, it's an interesting phenomena for researcher who deals with constrained optimization. Anyway, would you propose a more related forum for this problem? @Li-aungYip | |
May 7, 2015 at 11:07 | comment | added | Masan | It is Nonlinear constrained optimization problem. But as I read matlab documentation,LMI toolbox is used for Linear problem @AdeelSabir | |
May 7, 2015 at 11:05 | review | Close votes | |||
May 12, 2015 at 10:18 | |||||
May 7, 2015 at 10:48 | comment | added | Li-aung Yip | I am voting to close this question because 'review this MATLAB code' is highly specific to this particular situation, and is unlikely to be interesting to future readers. | |
May 7, 2015 at 8:53 | comment | added | Adeel | I've had a similar experience using convex optimization. It sometimes depends on the solver too. A problem can be feasible under one solver and infeasible under another. The degree of feasibility also can differ with different solvers. If you are familiar with YALMIP you can choose from a variety of solvers to solve your problem. I personally found YALMIP to a be much more satisfying experience for convex optimization than MATLAB's default LMI toolbox. | |
May 7, 2015 at 8:39 | comment | added | Masan |
Thanks for your comment. I already added the constraints sequentially and also solved them as a nonlinear system using fsolve to see if the problem is feasible. I think the constraints are feasible. But when I put it in optimization (fmincon ) problem it doesn't give the optimal solution. I am now very doubtful if I wrote the constraints correctly in my codes. I also have the same problem in GAMS and that works fine. I checked my script with GAMS and I can't understand why mine doesn't work. @AdeelSabir
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May 7, 2015 at 8:30 | comment | added | Adeel |
I personally have not used fmincon . But my suggestion is, if you can test a similar but smaller system, and then work your way up in steps. You can also remove some constraints, then sequentially add them, to single out the constraint that causes infeasibility.
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May 7, 2015 at 8:24 | history | edited | Masan | CC BY-SA 3.0 |
added 135 characters in body
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May 7, 2015 at 8:23 | comment | added | Masan | Thanks for your point. The power system data is available in the posted file. I used IEEE New England test system to run OPF on it. This test system contains, 39 Buses, 19 Loads,10 Generators, 46 Lines. @AdeelSabir | |
May 7, 2015 at 8:16 | comment | added | Adeel | It would be helpful if you added some more description of your power system, like no. of generators, no. of buses and their types, loads, etc. | |
May 7, 2015 at 7:40 | review | First posts | |||
May 7, 2015 at 8:44 | |||||
May 7, 2015 at 7:37 | history | asked | Masan | CC BY-SA 3.0 |