Additional information about above question, I work with dispatchable load. When a bus is isolated, I disable it in mpc.gen matrix, it's a right way to do it? Cause I found that even if I label it as isolated bus, after load2disp, it still works.
2016-08-04 14:15 GMT+02:00 kin maxe <[email protected]>: > One more question about DC OPF, if there is an isolated bus, the DC OPF > won't be able to work. Is there a way to solve it or I should switch to AC > OPF? > > 2016-08-02 17:04 GMT+02:00 kin maxe <[email protected]>: > >> Ok, thank you so much >> >> 2016-08-02 17:03 GMT+02:00 Ray Zimmerman <[email protected]>: >> >>> You can find isolated buses using the find_islands() >>> <http://www.pserc.cornell.edu/matpower/docs/ref/matpower6.0b1/find_islands.html> >>> function. >>> Isolated buses should be marked as such in the BUS_TYPE column of the >>> bus matrix. It should not be necessary to explicitly take isolated >>> generators off-line. >>> >>> Ray >>> >>> >>> On Aug 2, 2016, at 10:56 AM, kin maxe <[email protected]> wrote: >>> >>> Thanks for your reply. And one more question concerning the reliability >>> assessment, when I simulate certain contingency in which cases I have some >>> isolated buses, the OPF will stop work. I try several approach to solve but >>> all failed, do you have any suggestion? >>> >>> 2016-08-02 16:41 GMT+02:00 Ray Zimmerman <[email protected]>: >>> >>>> See the recent thread on this topic … >>>> >>>> http://www.mail-archive.com/[email protected]/msg05303.html >>>> >>>> — Ray >>>> >>>> *(not sure why, but it appears some messages are missing from the >>>> archive … looking into it**)* >>>> >>>> On Aug 2, 2016, at 6:25 AM, kin maxe <[email protected]> wrote: >>>> >>>> Dear Matpower community, >>>> >>>> I want to perform an OPF of load shedding in power system reliability >>>> analysis. But I got stuck with the cost function of OPF. How should I >>>> structure the cost matrix? >>>> >>>> Best wishes, >>>> Maxence Zhang >>>> >>>> >>>> >>> >>> >> >
