Re: AC OPF Convergence Issue

2018-03-13 Thread Aakanksha Dubey
;> mpc.bus(:,VMAX) = 1.1; >> >> mpc.bus(:,VMIN) = 0.9; >> >> runopf(mpc); >> >> >> >> Also, note that when relaxing the limits set them to large values, not >> zeros. >> >> >> >> Thanks, >> >> Shri

Re: AC OPF Convergence Issue

2018-03-13 Thread Ray Zimmerman
://www.mcs.anl.gov/~abhyshr> > From: <mailto:bounce-122357558-73493...@list.cornell.edu>> on behalf of Aakanksha > Dubey mailto:aad...@lehigh.edu>> > Reply-To: MATPOWER discussion forum <mailto:matpowe...@list.cornell.edu>> > Date: Wednesday, March 7, 2018 at 4:23 P

Re: AC OPF Convergence Issue

2018-03-08 Thread Abhyankar, Shrirang G.
From: on behalf of Aakanksha Dubey Reply-To: MATPOWER discussion forum Date: Wednesday, March 7, 2018 at 9:21 PM To: MATPOWER discussion forum Subject: Re: AC OPF Convergence Issue Thank You, Mirish and Shri for the guidance. Shri, the model is converging now. I understand that Vmax and

Re: AC OPF Convergence Issue

2018-03-07 Thread Aakanksha Dubey
; Also, note that when relaxing the limits set them to large values, not > zeros. > > > > Thanks, > > Shri > > Ph: (630) 252 0219 <(630)%20252-0219> > > www.mcs.anl.gov/~abhyshr > > *From: * on behalf of > Aakanksha Dubey > *Reply-To: *MATPOWER disc

Re: AC OPF Convergence Issue

2018-03-07 Thread Abhyankar, Shrirang G.
www.mcs.anl.gov/~abhyshr<http://www.mcs.anl.gov/~abhyshr> From: on behalf of Aakanksha Dubey Reply-To: MATPOWER discussion forum Date: Wednesday, March 7, 2018 at 4:23 PM To: "MATPOWER-L@cornell.edu" Subject: AC OPF Convergence Issue Hi All, I am developing a model for transmission grid

Re: AC OPF Convergence Issue

2018-03-07 Thread Mirish Thakur
Hi, I would recommend you to go through these 8 steps (Incremental approach) suggested by Jose L. Marin. Click the link given below and follow the steps. When I was working with the German Grid I had same problems but these steps really worked out in my case. I hope you will get solution. *https:

AC OPF Convergence Issue

2018-03-07 Thread Aakanksha Dubey
Hi All, I am developing a model for transmission grid at Lehigh Valley. My model seems to converge for DC OPF but is unable to converge for AC. I have tried the following to make it converge but nothing works: - Relaxed Vmax, Vmix, BR_R, Rate_A,Rate_B,Rate_C - Checked the tap ratio, Qmax,