It is not possible to do this directly with the OPF. I'm not sure if
this will accomplish what you want, but first you could run the OPF
with relaxed voltage limits to find the real power dispatch. Then use
that real power dispatch and run a simple power flow with the desired
voltage setpoints and the ENFORCE_Q_LIMS option set to true. Be aware
that this could cause line limits to be violated.
--
Ray Zimmerman
Senior Research Associate
428-B Phillips Hall, Cornell University, Ithaca, NY 14853
phone: (607) 255-9645
On May 8, 2007, at 7:52 AM, Sarina Adhikari wrote:
Dear Sir,
I have been trying to fix the voltages of the generator buses until
the generator reactive power limits are reached. However, when I do
this, the OPF simply diverges. I have already relaxed the line
limits as well as voltage limits. The thing I am trying to do is,
fix the voltages of generator buses until the reactive power limits
are reached and if one of the generator hits the reactive power
limits, simply relax the voltage constraints of that bus and so on.
But I am really having problem with this.
Is this modification possible with matpower? If yes, what could be
the easiest way to do this?
I would be very much grateful if you could send me some suggestions
regarding this at the earliest as I have been stuck on this point.
Looking forward to hearing from you soon.
sincerely
Sarina
