Dear all,
To complete my previous e-mail (see below) , I also get the following message:

Warning: Element(s) of class 'opf_model' do not match the current 
constructordefinition.  The element(s) have been converted to structures
If anybody can help me resolve the problem I would really appreciate it,

Thank you,
Gamze
From: [email protected]
To: [email protected]
Subject: Opf convergence problem
Date: Mon, 14 Sep 2015 11:14:15 +0000




Dear all,
I have a convergence problem when running the OPF.  When I used the Matpower 
vesion 4.1 my casefile converged in pf but not in opf.  I have recently 
installed the new version of Matpower 5.1 and when running the opf I get the 
following message which I do not understand:
??? Error using ==> classCannot change the number of fields of class 
'opf_model' without first typing 'clearclasses'.Error in ==> 
opf_model.opf_model at 66        om = class(s, 'opf_model', om);Error in ==> 
opf_setup at 202om = opf_model(mpc);Error in ==> opf at 200om = opf_setup(mpc, 
mpopt);Error in ==> uopf at 117    [results, success] = opf(mpc, mpopt);Error 
in ==> runuopf at 78[r, success] = uopf(casedata, mpopt);
Could someone explain to me what the problem is? Thank you for any suggestion. 
You can find attached the case file (mpz) the results of the pf (resultsLF) and 
the results of the opf (resultsOPF) when using Matpower 4.1

Any suggestion on how not to get that error message and/or how to reach 
convergence is welcome,

Thank you,
Gamze                                                                           
  

Attachment: case5998.mat
Description: Binary data

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