Hello, I am trying to solve an OPF problem where all the PV nodes are fixed to a certain power and voltage by an equality constraints, and only the slack bus is left free.
The power consumed by the loads (including losses) is more than the fixed values of the generators but less than the total power generated including the slack bus. I used the MATPOWER options as instructed in the manual (6.0b1): mpc = add_userfcn(case_alg, 'formulation', @userfcn_reserves_formulation); where the userfcn is set to enforce the rules mentioned above. I watched the results to see that the rules are indeed enfoeced and they are. My problem is that I get the following Warning: Matrix is singular to working precision. and the MATPOWER output "Numerically Failed". I have tried playing with my network parameters and relaxing constraints but didn't succeed making the MATPOWER converge. Any suggestion helping on the topic? Best regards, Raz
