By my tests, both the SOC and SDP relaxations of the AC-OPF can be used to show that this test case is infeasible.
After a quick look in the validation view of STAC (http://immersive.erc.monash.edu.au/stac/). The thermal limits do appear to be an issue. Cheers, -Carleton On Jul 23, 2015, at 10:05 AM, Ray Zimmerman <[email protected]<mailto:[email protected]>> wrote: If the OPF does not converge it is either infeasible or numerically difficult. I would start by relaxing constraints to get feasibility. Try eliminating the branch flow limits first (set mpc.branch(:, RATE_A) to zero). If that isn’t enough, try relaxing the voltage and reactive power constraints. You could also try using a different solver if you have access to more than one. Ray On Jul 23, 2015, at 7:10 AM, Tijani Muhammed <[email protected]<mailto:[email protected]>> wrote: I'm trying to run OPF for mpc attached. The runpf for the data was successfully executed but the runopf('case28d') for the mpc did not converge. I seriously need a way out of this problem. Thanks. -- TIJANI MUHAMMED ADEKILEKUN ELECTRICAL/ELECTRONICS ENGINEERING DEPARTMENT, FEDERAL POLYTECHNIC, EDE, OSUN STATE. <case28d.m> ________________________________ The information in this e-mail may be confidential and subject to legal professional privilege and/or copyright. National ICT Australia Limited accepts no liability for any damage caused by this email or its attachments.
