the lambda for equality constraints often become NaN , i don't know why. I use only equality constraints ,voltage upper and lower bounds.
-- ----------------------------------------------------- 舒德兀（Alex） schools of electrical engineering and automation ,Tsinghua University,China.. At 2013-04-22 11:43:34,"cat fa" <[email protected]> wrote: >Did you check all constraints? Were they all valid? >How much is difference? Better or worse? Which case did you run? > >2013/4/22 舒 <[email protected]>: >> Hello， >> recently ,i modify the OPF with interior point algorithm. for the >> f_fcn = @opf_objfcn; %目标函数 可以包括grad+hessian >> gh_fcn = @opf_constraintsfcn; %等式约束+grad >> ipm_hessian = @opf_hessmatrixfcn; %hessian >> >> are the same, but the result is different with matpower .I don't know >> why.who can help me >> >> >> >> >> -- >> >> ----------------------------------------------------- >> >> 舒德兀（Alex） >> >> schools of electrical engineering and automation ,Tsinghua >> University,China.. >> >> >> At 2013-04-22 01:41:24,"angelina sirri" <[email protected]> wrote: >> >> Hi everyone! >> I am running ac opf in case ieee24 bus, doing a reliability analysis.In some >> hours the opf does not converge and I observe that in mpc.gen Qg exceeds the >> Qmin and Qmax limits. During these hours, the there is not a failure , and >> all the branches and generators have status=1. When this problem appears in >> an opf which are the possible solutions?What I should correct, take into >> account or change in order not to exceed the reactive power limits?? >> Any help would be great! >> Regards, >> Angelina >> >> >> > >
